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Blog URL: "https://www.hackerearth.com/blog/chatgpt-in-hiring-assessments"

Key Takeaways:

  • With platforms like ChatGPT assisting candidates in coding tests, HackerEarth combats this by using advanced proctoring features like the Smart Browser, which ensures that candidates cannot use external tools during assessments.
  • The Smart Browser restricts actions such as switching tabs, resizing windows, and using multiple monitors, ensuring candidates stay within the testing environment.
  • To detect cheating, HackerEarth uses tab-switch proctoring and full-screen mode, which prevent candidates from accessing external resources during tests.
  • HackerEarth’s platform offers a mix of complex logical reasoning and full-stack questions that are difficult for tools like ChatGPT to answer, ensuring candidates demonstrate real-world problem-solving skills.
  • The combination of proctoring and AI-driven insights provides a data-driven evaluation for hiring, maintaining the integrity and accuracy of tech assessments.

Ever since ChatGPT made a public debut in November 2022, it has been the fodder for headlines. Its popularity proves that there isn’t a single industry or vertical that will not be fundamentally reshaped by generative AI platforms in the near future. Recruiting, in general, and technical assessments, in particular, are no different.

While ChatGPT can be used in technical recruiting to make manual work more manageable, it also has a proven drawback – candidates have been using it to answer take-home coding tests during the hiring process.

Due to the growing concern around the use of generative AI in coding tests, we decided to address the topic head-on and help our users understand the measures we have put in place to detect, prevent, and manage such practices.

But first, a note about LLMs and their use cases

LLM stands for Large Language Model, a machine-learning model designed to process and generate human-like natural language. LLMs are typically built using neural networks and deep learning algorithms and trained on vast amounts of text data to learn patterns and relationships between words and phrases.

LLMs aim to generate coherent and relevant responses to natural language inputs, such as questions, statements, or commands. This makes them useful for a wide range of applications, including language translation, chatbots, content generation, sentiment analysis, and answering questions.

LLMs have become increasingly popular in recent years due to advances in deep learning algorithms and the availability of large datasets. Some of the most well-known LLMs include GPT (Generative Pre-trained Transformer), BERT (Bidirectional Encoder Representations from Transformers), and T5 (Text-to-Text Transfer Transformer).

The growing demand for LLMs has led to some burning questions. Businesses are wondering about a future where LLMs are integral to day-to-day work and can generate more profits. In the tech industry, many have welcomed LLMs like ChatGPT as an extension of the existing coding tools, and are looking at ways of integrating the platform into their coding process.

Here’s how LLMs can transform the way we interact with computers and other digital devices:

  1. Language translation: You can use LLMs to automatically translate text from one language to another. This is particularly useful for businesses operating in multiple countries and trying to reach a global audience.
  2. Chatbots: LLMs can help chatbots respond to customer inquiries in natural language, saving significant time and money by automating customer service tasks.
  3. Content generation: Use LLMs to generate content for websites or social media. For example, an LLM could be trained to write news articles or social media posts based on a given topic.
  4. Sentiment analysis: Analyze text data and determine the sentiment behind it with LLMs. This is useful for businesses looking to monitor customer feedback or social media activity.
  5. Answering questions: You can leverage LLMs to answer questions in natural language. For example, an LLM could be trained to answer questions about a company’s products or services.
  6. Summarization: Automatically summarize long documents or articles with LLMs. This is useful for businesses looking to quickly extract key information from large volumes of text.

So now, what is ChatGPT?

ChatGPT is a Large Language Model (LLM) based on the GPT (Generative Pre-trained Transformer) architecture. It is one of the most advanced LLMs available and is capable of generating human-like responses to natural language inputs.

ChatGPT is trained on vast amounts of text data and uses a deep learning algorithm to generate responses to user inputs. It can engage in conversations on a wide range of topics and is capable of providing contextually relevant and coherent responses.

One of the key advantages of ChatGPT is its ability to generate natural language responses in real time. This makes it a useful tool for a variety of applications, including chatbots, virtual assistants, and customer service platforms.

OpenAI, a leading AI research organization, developed ChatGPT. It is based on the GPT-3 architecture, which was trained on a massive dataset of over 45 terabytes of text data. Overall, ChatGPT represents a significant advancement in the field of Natural Language Processing and has the potential to transform the way we interact with computers and other digital devices.

It is a powerful tool that is being used in a variety of applications and has the potential to drive innovation and growth across a spectrum of industries.

How to use ChatGPT for answering coding tests?

Many developers use this tool to generate code snippets to solve specific problems in coding tests. If they can define their parameters and conditions, ChatGPT can produce a working code that can be used in the functions.

ChatGPT can answer complex technical questions which are both theoretical and practical. However, one of the shortcomings of ChatGPT is that it is not yet fully capable of answering questions based on logical reasoning. It interprets the question literally instead of contextually. This means that ChatGPT can also not answer context-based questions accurately.

ChatGPT works well when answering technical questions that are theoretical. It has been trained rigorously on that database. Even with easy coding questions, ChatGPT provides excellent results but with complex scenario-based questions, it fails to provide the right solution sometimes. It is not yet able to create complete modules for a full-stack question.

Also read: 8 Unconsciously Sexist Interview Questions You’re Asking Your Female Candidates

ChatGPT + Coding tests — Plagiarism or Progress?

The bottom line is: ChatGPT will make it infinitely easier for candidates to generate code and ace their take-home assignments. Currently, this capability is limited to simple, theory-based questions. However, the platform will inevitably learn and get better at generating complex code. Consequently, it could be used to answer all coding tests.

At HackerEarth, we have always maintained that skills are the only criteria for evaluation. However, a developer using an AI tool to answer a question muddles the selection and evaluation process.

The AI-shaped elephant in the room then begs us to pick a side. Either we conclude that the use of any generative AI by a candidate in a coding test amounts to plagiarism and is unacceptable. Or, we chalk it up to changing times and get on board with the progress.

The first approach

This is best suited for mass hiring drives, where recruiters are hard-pressed to curate a pool of candidates through a process of elimination. Plagiarism via ChatGPT in hiring assessments can be one of the criteria for elimination. It allows you to narrow your candidate list down to the developers who answered the coding test without the support of an external tool.

The second approach

This works well when hiring fewer candidates, perhaps for a highly technical role. ChatGPT is here to stay; senior developers use it to generate or evaluate complex code. Allowing candidates for such roles to use ChatGPT in coding tests would mean expanding the understanding of skill-based evaluation in these scenarios.

We could draw a parallel between these candidates and writers who use a spellchecker to proofread their assignments. AI-based writing assistants have become an industry-wide best practice, so the writer in this example would not lose any points for using one.

Instead, they would be evaluated on their research and analytical skills or creativity – which an AI–based writing assistant cannot substitute – and not necessarily on their use of an external tool. In theory, one could use the same rationale to justify and accept the use of ChatGPT in hiring assessments by candidates.

Given both these approaches, we at HackerEarth have decided to support both schools of thought in our Assessments platform. Those who want to ensure their candidates cannot use ChatGPT for answering tests can do so with our advanced proctoring features. And the hiring managers who do not mind the use of ChatGPT can write to support@hackerearth.com to understand how the LLM can be integrated into HackerEarth Assessments.

How does HackerEarth detect the use of ChatGPT in hiring assessments?

With the increasing use of ChatGPT, many of our customers have written to us to ask how we plan to combat the use of ChatGPT in hiring assessments. HackerEarth Assessments is known for its robust proctoring settings. We have added new features to detect the recent spate of plagiarism via ChatGPT in hiring assessments.

Let me walk you through these new additions:

1. Smart Browser

HackerEarth has introduced new advanced proctoring features including a Smart Browser. This is available with the HackerEarth Assessments desktop application. This builds on our existing proctoring features and establishes a highly rigorous proctoring method to prevent the use of ChatGPT and other LLMs.

Smart Browser includes the following settings that detect the use of ChatGPT:

  • Candidates are not allowed to keep other applications open during the test
  • They are also not allowed to:
    • Resize the test window
    • Use multiple monitors during the test
    • Share the test window
    • Take screenshots of the test window
    • Record the test window
    • Use restricted keystrokes
    • View OS notifications
    • Run the test window within a Virtual Machine
    • Use browser developer tools

To learn more about the Smart Browser, read this article.

At the time of writing this article, Smart Browser is only available upon request. To request access, please get in touch with your Customer Success Manager or contact support@hackerearth.com.

Also read: 3 Things To Know About Remote Proctoring

2. Tab switch proctoring setting

Use HackerEarth’s tab switch proctoring setting during tests. This setting allows you to set the number of times a candidate can move out of the test environment. The default setting is for 5 instances, which means that candidates are allowed to switch tabs 5 times during the test duration. On the 6th try, they will be automatically logged out of the system. The default number can be changed if required.

When this proctoring setting is enabled, the system warns the candidate each time they move out of the test environment. The following actions are considered as ‘moving out of the test environment. However, please note that this is not an exhaustive list:

  • Switching tabs
  • Switching windows
  • Opening new applications on the computer, including system popups like anti-virus notifications, Lync notifications, Skype notifications, etc.
  • Any action taken to close notifications is also counted as leaving the test environment.

The assumption is that candidates would need to switch tabs to access ChatGPT. By not allowing candidates to move out of the test environment beyond a set number of times, we can detect and prevent the use of ChatGPT.

3. Full-screen proctoring setting

Enable this feature to enhance the proctoring of a hiring assessment and allow your candidates to take the assessment only in a full-screen mode. As soon as the candidate opens up the assessment, the screen goes into full screen and candidates cannot exit this mode. If they try to exit the mode, they will be logged out of the assessment.

Reduce ChatGPT usage in your assessments by not allowing candidates to open any new tabs while giving the assessment. To learn more about HackerEarth’s proctoring settings, read this article.

4. Diverse question types

HackerEarth has a rich library of logical reasoning questions that cannot be answered easily via ChatGPT. We tested our questions on ChatGPT, and we can say with reliable accuracy that it cannot answer logical reasoning questions correctly because it cannot understand contextual questions.

Here’s one of the many examples of logical reasoning questions that we asked ChatGPT to test its capabilities:

Example of a complex question type that ChatGPT can't answer

ChatGPT cannot produce code for full-stack questions. HackerEarth has a vast library of full-stack questions that can be used in the assessments and are well protected from the impact of ChatGPT.

While ChatGPT can help write the code for some modules, it cannot fully answer a full-stack question with all the functions. Compiling these separate functions to create a single module requires skill and ingenuity.

Similarly, recruiters can use file upload questions to make their assessments more robots. These questions have complex scenarios and functions that ChatGPT cannot answer completely.

Essential insights about using ChatGPT in hiring

  • LLM stands for Large Language Model. It is a type of machine learning model designed to process and generate human-like natural language.
  • ChatGPT is a Large Language Model (LLM) based on the GPT (Generative Pre-trained Transformer) architecture. It is one of the most advanced LLMs available and is capable of generating human-like responses to natural language inputs.
  • You can use ChatGPT to answer easy coding questions and MCQs. It can help write accurate code snippets for function modules.
  • Recruiters, avoid using MCQs with direct answers as candidates can easily answer them through ChatGPT.
  • HackerEarth provides various solutions that help us detect and prevent the usage of ChatGPT. These include:
    • Smart browser
    • Tab switch proctoring setting
    • Full-screen mode
    • Diverse and complex question types

Doing away with using ChatGPT in hiring assessments

In many ways, we are all just waking up to the power of AI. With new advancements every day, no one is sure what the future will unfold, but we all should be ready to embrace the moment when AI becomes an integral part of daily functions.

Technical assessments can still be curated without the interference of AI platforms like ChatGPT to ensure skill-first evaluation. HackerEarth Assessments has introduced advanced proctoring settings like Smart Browser, tab-switch detection, full-screen mode, and a vast library of complex engineering questions that are not easily answerable by ChatGPT.

The product mavens at HackerEarth work relentlessly to ensure our product is firewalled against the latest challenges and developments. Tech recruiters and hiring managers can rest assured that the validity and sanctity of our assessments haven’t been affected by the use of ChatGPT.

We will keep a keen eye on upcoming changes in this area and improve the product over time to combat future challenges and ensure a plagiarism-free hiring experience for our clients.

The Ultimate Playbook For Better Hiring FREE EBOOK

Frequently Asked Questions (FAQs)

#1 Where does HackerEarth see pre-interview tests and interviewing to be moving to in a world where ChatGPT exists?

The world of interviewing and pre-interview tests will see significant changes in the foreseeable future. We also need to understand that as new features and platforms emerge, the solutions to detect and prevent their use will go through multiple iterations.

In the near future, advanced proctoring settings and new question types that are not easily answerable using ChatGPT can help protect pre-interview tests from the impact of ChatGPT. We are also working on foolproof methods for plagiarism detection, which can circumnavigate ChatGPT’s upgrades.

#2 With ChatGPT being able to solve MCQs, programming, etc. in a few minutes, does HackerEarth have a different set of problems that can be used?

ChatGPT can quickly solve MCQs and simple programming problems, which is a big concern. However, HackerEarth has a wide variety of questions that recruiters can use to combat the usage of ChatGPT. We have a library of full-stack question types. As previously discussed, it will be difficult for a candidate to search for different modules and compile them to complete the question. It is a time taking and complex process, so candidates will prefer to do these questions on their own.

Moreover, ChatGPT cannot understand logical real-life scenarios. The accuracy of such answers is poor. Use a mix of logical reasoning MCQs, DevOps, and Selenium questions to check the versatility of a candidate.

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Workforce Skills Data in IT Services Pitches (2026)

Meta title: How IT services firms win pitches with workforce skills data Meta description: Enterprise buyers now demand skills evidence in proposals. Here's what to measure, show, and fix before your next IT services pitch in 2026.

How IT services firms use workforce skills data to win client pitches in 2026

Read time: 8 minutes (to be confirmed against final word count / 250 before publication)

IT services firms use workforce skills data to win client pitches by replacing capability narratives with evidence — showing prospective clients exactly how many engineers hold a specific skill at a specific proficiency, and how quickly the bench can be assembled for the engagement. The firms doing this well in 2026 treat the skills inventory as a sales asset, not an HR artifact. The firms doing it poorly still send slides that say "we have deep expertise in cloud modernization" and lose to competitors who can show it. The pitch itself has changed — and the shift starts with what buyers now expect to see on page one.

This is a shift in what a services pitch is. For a decade, the pre-sales conversation was about case studies, delivery methodology, and named senior architects. In 2026, procurement teams at banks, retailers, and healthcare enterprises are asking for skills evidence up front — sometimes before the statement of work is drafted. Workforce skills data is now the answer to a question the buyer already has.

Why workforce skills data has become a pitch requirement

Three shifts have pushed skills data into the pre-sales conversation.

The first is AI. Clients evaluating a services partner for a GenAI or agentic-workflow engagement want to know whether the delivery team can actually work in that stack — not whether the firm has trained 5,000 people on a two-hour course. Industry surveys of enterprise AI adoption, including reporting from major consultancies, consistently identify talent and skills gaps as a leading barrier to scaling AI in the enterprise — which puts pressure on services firms to prove capability rather than claim it.

The second is the collapse of pyramid economics as a differentiator. The old services pitch — "we'll staff this at the right price point" — assumed clients cared primarily about cost per FTE. In 2026, most enterprise buyers care about capability density: how many senior-plus engineers with the exact skill, on the account, from day one.

The third is procurement maturity. Sourcing teams at large enterprises now issue capability questionnaires that ask for headcount at skill level, certification data, and recency of hands-on work. Procurement-led skills scrutiny has become a commonly observed part of enterprise vendor evaluation. A firm that answers "our team has strong experience in Kubernetes" against a competitor that can present a specific, assessed headcount at proficient-or-above on that same skill — for example, imagine a firm able to show that several hundred engineers cleared a defined Kubernetes assessment within the last two quarters — is not winning that section.

How workforce skills data wins pitches: what the evidence pack must show

A useful skills evidence pack answers four questions the buyer will otherwise assume the worst about.

How many people hold this skill, at what proficiency. Not "trained on" — assessed at. A pitch that includes proficiency distribution (foundational, working, proficient, expert) for the specific skills in scope reads differently from one that lists course completions.

How recently they used it. Skills decay fast, especially in AI and cloud. Industry HR bodies have repeatedly observed how quickly technical skill relevance erodes without recent hands-on use. Recency data — last project, last assessment, last certification refresh — is often what separates a real capability claim from an aspirational one.

How quickly the team can be assembled. Bench visibility mapped against the skill requirement. If the client needs 40 engineers with a specific combination of skills by a target date, the pitch that shows the current bench plus the internal-mobility pipeline wins. This is one area where skills-based hiring and internal mobility infrastructure start to overlap; HackerEarth's technical assessments are designed to generate exactly this kind of role-aligned, proficiency-banded signal.

How defensible the measurement is. Increasingly, procurement asks how the firm knows what it says it knows. "Manager attestation" is a weak answer. Assessment-based evidence, tied to a documented rubric, holds up.

Assessment-Based vs. Self-Reported Proficiency Distribution — assessment-based data typically shows a bell curve across foundational, working, proficient, and expert bands, whereas self-reported data tends to cluster artificially in "proficient."
Figure 1: Illustrative proficiency distribution — assessment-based data versus self-reported data. Source: HackerEarth, illustrative based on assessment program patterns.

Where most IT services firms lose credibility

In our experience working with IT services firms running skills programs, many pitches lose credibility at the same three points.

The first is the skills taxonomy itself. If the firm's internal taxonomy has 200 skills and the client's RFP references 40 specific technologies, the pitch team spends the night before mapping one to the other by hand — and gets it wrong in the section the client actually reads. A taxonomy that isn't role-aligned and client-mappable is a liability. For related context, HackerEarth's skills intelligence platform is built around this mapping problem.

The second is proficiency inflation. Firms that self-report proficiency without assessment show suspiciously flat distributions — 70% "proficient" across every skill. Procurement teams have seen this pattern too many times. Genuine assessment data has a distribution shape, and buyers now look for it.

The third is the AI-fluency claim specifically. Every services firm says its workforce is AI-ready. Very few can define what they mean. The firms that can — with a defined evaluation of prompt quality, agentic-workflow reasoning, and code-review-of-AI-output — are winning the AI-adjacent work. The rest are getting screened out earlier in the process. A structured AI-readiness evaluation, using HackerEarth's AI assessments, is increasingly what closes this gap.

What the pitch document actually looks like

The pitch artifact has shifted from a static slide to a live capability view. What worked in 2022 — a slide titled "Our Talent" with logos and headcount — does not work in 2026.

The current pattern, at firms doing this well, is a two-page skills annex embedded in the technical proposal. Page one: the skill requirements pulled from the RFP, mapped to the firm's internal skill IDs, with headcount by proficiency band. Page two: the delivery pod composition — named or unnamed depending on the stage — with skill signatures per role, recency data, and any certifications relevant to the client's compliance context (particularly relevant in BFSI, where audit defensibility of the delivery team's qualifications is now a procurement checkpoint).

Consider an anonymized example: a mid-size BFSI-focused services firm with roughly 800 engineers, competing for a cloud-modernization program against two Tier-1 competitors. Rather than a generic capability slide, the firm submitted a two-page skills annex — assessed headcount by proficiency band for each of the 22 skills named in the RFP, plus recency data drawn from project history. That firm moved from long-list to short-list on the strength of the annex alone; the technical evaluation panel cited the assessment-backed distribution shape as the reason.

Some firms are adding a third page: benchmarking. How the proposed pod's skill signature compares to industry benchmarks for the same role. This works when the underlying data is credible and fails badly when it isn't.

The infrastructure that makes this possible

A services firm cannot generate this evidence from an LMS. Course completion is not skill. What is needed is:

  • A skills taxonomy that maps to client-facing technology categories, not just internal training curricula
  • Assessment data at the individual level, refreshed on a defined cadence (a quarterly refresh is a common practice for AI and cloud skills; in our experience, annual refresh tends not to be enough for fast-moving stacks)
  • Integration between assessment data, HRIS role data, and project-history data so recency can be inferred
  • A workforce analytics layer that lets the pre-sales team pull a pod-shaped view against an RFP without a two-week data pull

This is where HackerEarth's SkillsGraph fits directly into the pre-sales workflow: it benchmarks workforce skills against global and industry standards and turns workforce capability into a measurable input for client pitches and strategic positioning — the exact inputs the two-page skills annex depends on. Some large services firms have built internal systems on top of their HRIS and their own assessment engines. Either path works. What does not work is answering RFP skill questions from a spreadsheet updated once a year.

Trade-offs worth naming

Skills-data-driven pitching has real costs.

Building and maintaining the taxonomy is a persistent investment. In our experience working with services firms, reaching the point where the data is trusted by both delivery leaders and the pre-sales team typically takes 12–18 months, driven by three factors: taxonomy complexity (how many skills, how role-aligned), assessment tooling maturity (whether valid, role-relevant assessments already exist), and stakeholder alignment (pre-sales, delivery, and L&D agreeing on definitions and refresh cadence). Assessment fatigue is also a legitimate risk; if engineers are asked to prove the same skill repeatedly across multiple disconnected systems, retention suffers. And there is a defensibility trade-off: the more precise the claim, the more auditable it becomes. If the pitch names a specific number of engineers holding a certification and the client audits during delivery, that number needs to still be true.

We recommend treating data older than 18 months as either flagged in the pitch or excluded — presenting stale data as current is the fastest way to lose credibility during a client audit.

The firms getting the most out of this approach treat the skills data as a shared asset across pre-sales, delivery, and L&D — not owned by any one function. When L&D owns it alone, the taxonomy drifts toward training categories. When pre-sales owns it alone, it drifts toward whatever won the last deal.

Frequently asked questions

How do IT services firms use workforce skills data during a client pitch specifically?

The counterintuitive part is that most of the value is created before the RFP arrives, not during pitch prep. Firms that win are the ones whose pre-sales team can query the skills data in the first client conversation — not the ones who spend three days assembling evidence after the RFP lands. The pitch document itself (typically a one- to three-page skills annex in the technical proposal) is downstream of that query capability. If the data can only be assembled retroactively, the pitch will always be reactive to what the client asked, rather than shaping what the client asks for next.

What is the difference between training data and skills data in this context?

Training data records what an employee was exposed to; skills data records what they can do, assessed against a rubric. Course completion rates and certification counts are inputs to skills data, not substitutes for it. Procurement teams in 2026 are increasingly explicit about this distinction and will discount capability claims backed only by training records.

How often should skills data be refreshed for pitch use?

A common practice is quarterly refresh for fast-moving areas — GenAI tooling, cloud platforms, security stacks — and annual refresh for slower-moving skills like functional domain knowledge or established programming languages. We recommend flagging or excluding data older than 18 months; presenting stale data as current is the fastest way to lose credibility if the client audits.

Does workforce skills data matter for smaller services firms?

It matters more, not less. Large firms can win on brand and scale even with weaker skills evidence. A 500-person firm competing against a Tier-1 needs to show specific, verifiable capability density in the exact skill area the client is buying — that is often the only path to winning against a bigger competitor.

What is the most common reason IT services firms lose credibility in skills-based pitches?

Proficiency inflation. When self-reported proficiency data shows most of the workforce as "proficient" or above in every skill, procurement teams read it as unreliable and discount the entire claim. Assessment-based data with a real distribution — including honest counts of "foundational" and "working" — is more credible than a flat inflated curve.

Key takeaways

  • Workforce skills data has moved from HR reporting into pre-sales — enterprise buyers now expect skill evidence inside the technical proposal.
  • Course completions and manager attestations no longer count as capability proof; assessment-based data with proficiency distributions does.
  • The pitch artifact is a skills annex mapping RFP requirements to internal skill IDs, with headcount, recency, and defensibility notes.
  • The three most common failure points are taxonomy misalignment, proficiency inflation, and undefined AI-fluency claims.
  • Building this capability requires shared ownership across pre-sales, delivery, and L&D — it is not a single-function project.

See it in action

To see how the RFP-to-skill-ID mapping and benchmark views come together in a pre-sales workflow, book a walkthrough of HackerEarth SkillsGraph.

How to design a take-home coding assignment that AI tools cannot complete for your candidate

Meta title: Design take-home coding tests AI can't complete Meta description: How to design a take-home coding assignment that AI tools cannot complete for your candidate — practical patterns that still produce hiring signal.

How to design a take-home coding assignment that AI tools cannot complete for your candidate

Estimated read time: 8 minutes

Many take-home coding assignments written before 2023 are now solvable by a mid-tier LLM in under 10 minutes. If you want to know how to design a take-home coding assignment that AI tools cannot complete for your candidate, the honest answer is that you probably can't — not entirely. What you can do is design an AI-resistant take-home coding assignment where AI is a normal part of the work, and the signal comes from what the candidate does around the AI: the judgment, the context handling, the debugging, the trade-offs they can defend on a follow-up call.

This is a shift in what a take-home is for. It stops being a proof of coding ability in isolation. It becomes a proof of engineering judgment in an AI-assisted workflow — which is closer to the actual job anyway.

Why the classic format broke in the AI era

The classic take-home — "build a small CRUD app in the language of your choice, submit in five days" — assumed the candidate would be the primary author of the code. That assumption held until roughly late 2022. GitHub's 2024 Octoverse report notes that AI-assisted development has become increasingly common across active repositories, and Stack Overflow's 2024 Developer Survey reported that 76% of professional developers are either currently using or planning to use AI tools in their development process, up from 70% in the 2023 survey.

The result: a candidate who submits a clean, working CRUD app has proven very little about their own ability. They have proven they can prompt a model and paste the output. That is a real skill, but it is not the skill most hiring managers are actually trying to test with a take-home.

Two consequences follow. First, in our experience working with technical hiring teams, the false-positive rate on take-homes has climbed sharply — candidates ship work that looks strong and then cannot discuss it. Second, strong candidates are increasingly resentful of long take-homes, because they know the format is broken and they know reviewers half-suspect the work is AI-generated anyway.

Developer AI Tool Adoption Rate: 2023 vs 2024
Source: Stack Overflow Developer Survey, 2024

The core design shift for an LLM-resistant technical assignment: from "did you write this" to "can you defend this"

The premise worth adopting is simple. Assume AI assistance. Design the take-home so that AI help is expected, and the evaluation focuses on the parts of the work AI can't fake for the candidate on the follow-up conversation.

This is the same shift many university programs made when calculators became ubiquitous. The problems changed. The evaluation changed. The skill being tested changed.

For an AI-proof coding assessment, four design principles produce assignments that AI tools cannot complete for the candidate in a way that survives scrutiny.

1. Anchor the assignment in a context only the candidate has

Generic prompts ("build a URL shortener") are the easiest for AI to complete end-to-end. Contextual prompts force the candidate to make choices AI can't make for them.

Concrete patterns that work:

  • Give the candidate a broken repository — an intentionally flawed 200–400 line codebase — and ask them to identify the top three issues, fix one, and write a short note on the trade-offs of their fix. AI helps with the fix; the diagnosis and the trade-off note reveal judgment.
  • Provide a partial system with an ambiguous spec. Ask the candidate to list the three questions they would ask a product manager before writing more code, then implement against their own resolved assumptions. The questions are the signal.
  • Ask them to extend an existing feature rather than build from scratch. Extension requires reading, which AI is still weaker at than generation, and it produces a smaller code delta that is easier to discuss line by line.

The pattern: the deliverable includes both code and a short written artifact (a decision log, a set of questions, a diagnosis note). The written artifact is where AI signal degrades fastest, because it requires the candidate to have actually read what they submitted.

2. Require a live walkthrough as part of the AI-era hiring exercise

The single most effective defense against AI-completed take-homes is a 30-minute follow-up where the candidate walks a reviewer through their code, is asked to modify one function live, and is asked to explain a trade-off they made.

This is not an interrogation. It is a working session. Candidates who did the work themselves — with or without AI — handle it easily. Candidates who did not, don't.

Two things to design for the walkthrough:

  • Pick one function in their submission and ask them to modify its behavior in a small, specific way. "What if the input format changed to include a timezone?" Watch how they navigate the file, whether they know where the change belongs, and how they reason about downstream effects.
  • Ask them why they didn't do something. "Why didn't you cache this?" or "Why did you pick this data structure over a hash map?" The negative-space questions catch people who followed AI suggestions without evaluating alternatives.

If your hiring process can't support a 30-minute follow-up on every take-home submission, the take-home is not doing what you need it to do. Cut it and use a shorter, live-coded exercise instead. You can run live coding interviews with HackerEarth's FaceCode for the live component; a scheduled Zoom with a hiring manager works too.

3. Time-box tightly and make the scope visible

Long take-homes (5+ days, 10+ hours of work) are the format most vulnerable to AI completion. They also disproportionately screen out candidates with caregiving responsibilities, current jobs, or anything approaching a life outside work.

A 90-minute to 3-hour take-home, with the scope stated explicitly, does more work than a five-day project. Candidates who spend 15 hours on a 3-hour assignment produce output that no longer represents their unaided ability, and the extra time doesn't produce better signal — it produces more polish, which is the exact thing AI adds cheaply.

State the scope in the assignment: "This should take a strong candidate roughly 2 hours. If you're spending significantly more, stop and submit what you have with a note on what you'd do next."

4. Evaluate against an explicit rubric, not against a "gut feel" ceiling

Rubric drift is the quiet killer of take-home evaluations. Two reviewers looking at the same submission reach different conclusions, and when AI is in the mix, "this feels AI-generated" becomes a stand-in for "I don't trust this." That is not a defensible evaluation.

An explicit rubric for a take-home coding assignment AI can't complete covers at least four dimensions:

  • Correctness against the stated requirements
  • Code quality relative to the seniority level being hired
  • Quality of the written artifact (decision log, questions, or trade-off note)
  • Performance in the walkthrough — specifically, ability to modify their own code and defend their choices

Score each dimension separately. Calibrate with two reviewers on the first five submissions of any new take-home before rolling it out broadly. Rubric-based evaluation is one of the areas where structured platforms help more than most people expect — for a deeper look at how to build rubrics that hold up across reviewers, see our guide to building a technical interview rubric.

What not to do

A few defensive moves get suggested often and don't work as well as advertised.

Aggressive AI-detection tools. Tools that claim to detect AI-generated code have false-positive rates that practitioner reports suggest are high enough to hurt honest candidates. Vendors of AI-detection tools designed for prose, such as Turnitin, have publicly acknowledged that detection accuracy drops on edited or paraphrased content, and code is easier to lightly rewrite than prose. (See Turnitin's guidance on AI writing detection accuracy.) Using detection scores as an evaluation input creates unfair rejections and legal exposure. Don't.

Banning AI use. Telling candidates "do not use AI tools" produces two outcomes: honest candidates follow the rule and are handicapped relative to the job's actual conditions, and dishonest candidates use AI anyway. The rule punishes the wrong people.

Locking down the environment. Proctored, keylogger-monitored take-home environments produce a candidate experience that top candidates walk away from. They also don't work — a second laptop sits next to the first one. Proctoring belongs in high-stakes assessments, not take-homes.

Making the assignment harder. Practitioner experience suggests that increasing difficulty to "outpace" AI often produces problems that AI still solves and that human candidates now fail. The result is a smaller, more frustrated candidate pool with no better signal.

A worked example of an AI-resistant take-home coding assignment

For a mid-level backend engineer role, a take-home that works as of 2026:

Provide a repo with a small REST service (300 lines of Python or Go) that has three problems: one obvious bug, one performance issue that only shows up at scale, and one design flaw that will bite the next engineer to touch it. Ask the candidate to:

  1. Identify all three issues in a written diagnosis (max 400 words).
  2. Fix the bug and open a PR-style diff.
  3. In their submission note, describe how they'd address the other two issues and what trade-offs each fix involves.
  4. Come to a 30-minute walkthrough prepared to modify their fix live in response to a changed requirement.

Total candidate time: 2–3 hours. AI helps with the fix and possibly drafts the diagnosis, but the walkthrough — where they explain the two issues they didn't fix and defend the trade-offs — is where the actual signal appears.

Frequently asked questions

Can I design a take-home coding assignment that AI tools cannot complete at all for the candidate?

Not reliably, and pursuing that goal leads to worse assignments. The workable version is to design a take-home where AI assistance is expected and the evaluation focuses on judgment, context, and defense of choices — which is what the job requires anyway.

How long should a take-home coding assignment be in 2026?

For most roles, 90 minutes to 3 hours of stated scope, with a 30-minute live follow-up. Practitioner experience suggests longer take-homes correlate with drop-out among strong candidates and with over-polished AI-assisted submissions that don't reflect the candidate's own ability.

Should we tell candidates they can use AI tools on the take-home?

Yes, explicitly. State that AI tools are permitted and expected, and that the follow-up walkthrough will focus on the candidate's ability to explain and modify their submission. This is more honest, produces less anxiety, and doesn't change the signal you get from the walkthrough.

What if a candidate refuses the live walkthrough?

Treat it the way you'd treat a candidate refusing any standard step in the process. The walkthrough is not optional in an AI-assisted world; it's where the take-home actually gets evaluated. If the process is designed so the walkthrough is 30 minutes and scheduled within a week of submission, refusal is rare.

Do AI-detection tools work for code?

Not well enough to use as an evaluation input. Research and practitioner reports suggest false-positive rates are high, honest candidates get flagged, and the tools don't survive an adversarial candidate who edits the AI output. Use structural design — walkthroughs, rubric-based evaluation, contextual prompts — rather than detection.

Key takeaways

  • Assume AI assistance in every take-home submission; design for it rather than against it.
  • Anchor assignments in context — broken repos, partial systems, extension tasks — that AI can help with but can't fully own.
  • Require a 30-minute live walkthrough as a non-negotiable part of the process; it is where the actual signal lives.
  • Keep scope tight (2–3 hours) and score against an explicit rubric with at least two calibrated reviewers.
  • Skip AI-detection tools, aggressive proctoring, and AI bans — they punish honest candidates and don't stop dishonest ones.

See it in action

The rubric-drift problem described in principle 4 — two reviewers reaching different conclusions on the same submission — is the specific gap HackerEarth Assessments is built to close. Structured rubric scoring across reviewers keeps evaluations calibrated on the diagnosis, code, and walkthrough dimensions separately, so "this feels AI-generated" stops standing in for a defensible score. To see how it maps to the diagnosis-and-extension format described above, book a walkthrough of HackerEarth Assessments.

AI Candidate Screening: A TA Leader's Guide

AI candidate screening: a practical guide for talent acquisition leaders

Meta title: AI candidate screening: a guide for TA leaders | HackerEarth Meta description: How AI candidate screening works, where it fails, and how TA leaders can evaluate tools, measure outcomes, and stay compliant with NYC Local Law 144 and the EU AI Act.

AI candidate screening — the use of machine learning and automation to parse, score, and prioritize applicants during early-stage hiring — is now a program-design decision for talent acquisition leaders, not just a recruiter productivity tool. LinkedIn's 2024 Future of Recruiting report found that recruiters spend roughly a third of their week on sourcing and screening tasks, and the volume side of the equation is only growing: LinkedIn has reported application volumes per job climbing sharply since generative AI writing tools became widely available.

That combination — more applications, similar-looking resumes, tighter timelines — is what pushes AI candidate screening from a "nice to have" into a funnel-conversion and pipeline-coverage question that shows up in executive reporting.

This guide covers how AI candidate screening works, where it underperforms, how to evaluate vendors against your ATS (Workday, Greenhouse, Lever, SmartRecruiters), and what compliance frameworks such as NYC Local Law 144 and the EU AI Act require before deployment.

Recruiter Time Allocation by Task
Source: LinkedIn Future of Recruiting Report, 2024; remaining categories illustrative based on article claims

Why resume-only screening breaks at scale

Resume screening was designed for a hiring environment that no longer exists. Recruiters reviewed education, work history, certifications, and keywords to determine whether an applicant should move forward.

The problem is that resumes were never designed to measure skills. A candidate may list Python, Java, or "cloud infrastructure" without being able to apply any of them; conversely, capable candidates get filtered out because their resumes don't hit keyword thresholds. Research summarized by SHRM and McKinsey consistently points to the weak predictive validity of unstructured resume review for job performance.

At high volume, this gets worse. When a recruiter has to clear 400 applications for one role in a week, decisions collapse toward surface signals — school name, employer brand, keyword density — rather than validated capability.

This is also why skills-based hiring frameworks such as O*NET and SFIA have gained traction: they give TA teams a structured vocabulary for what a role actually requires, which is a prerequisite for any AI screening system to score against.

Comparison of traditional resume screening and AI candidate screening workflows
Figure 1: Traditional screening centers on resume review; AI candidate screening incorporates additional candidate signals such as assessments and structured evaluations. Source: HackerEarth.
Dimension Traditional screening AI candidate screening
Primary input Resume, cover letter Resume + assessment data + structured interview signals
Evaluation basis Keywords, credentials Demonstrated skills, scored responses
Consistency Varies by recruiter Rubric-based, auditable
Scalability Linear with headcount Handles high-volume events (e.g., campus, RIF backfill)
Reporting Manual funnel metrics Funnel conversion, slate diversity, time-to-shortlist
Time-to-Shortlist: Manual vs. AI Screening at High Volume
Source: Illustrative based on article claims (days to shortlist)

What AI candidate screening actually is

AI candidate screening is the application of machine learning and rules-based automation to evaluate, prioritize, and organize candidates in the early stages of a hiring funnel.

Depending on the platform, an AI screening system may score resumes, application answers, assessment results, coding submissions, or recorded interview responses against a role-specific rubric. The output is typically a ranked shortlist plus explanations of why each candidate scored where they did.

The point is not to replace recruiter judgment. It is to reallocate recruiter time from administrative triage to candidate evaluation, and to make the triage step auditable enough that a Head of TA can defend the funnel to a CHRO or a regulator.

Modern AI screening tools generally integrate with an ATS such as Workday, Greenhouse, or Lever, and increasingly sit alongside skills assessments and structured interview platforms rather than replacing them.

How AI screening works in a technical hiring funnel

An AI candidate screening workflow begins when a candidate enters the funnel — application, referral, sourcing campaign, or talent community. From there:

  1. Ingest. Application data and resume are parsed and normalized against role criteria.
  2. Signal collection. For technical roles, the workflow adds skills assessments, coding challenges, or structured interview scores.
  3. Scoring. Each candidate is scored against a rubric derived from the job's must-have and nice-to-have skills.
  4. Ranking and explanation. Recruiters see a ranked slate with the reasoning behind each score, not just a number.
  5. Human review. Recruiters and hiring managers make the shortlist decision using the AI output as one input among several.

For TA leaders managing high-volume or campus hiring, this structure is what turns AI screening from a black box into something you can report on: funnel conversion at each stage, slate diversity, recruiter productivity per requisition, and time-to-shortlist.

The business case: what AI screening changes at the TA function level

For a Head of TA, the case for AI candidate screening is a program-design case, not a feature case.

Recruiter productivity. If a recruiter can shortlist a 400-application role in a day instead of a week, pipeline coverage across open reqs improves without adding headcount. This is the metric to bring to a vendor RFP.

Consistency and defensibility. Rubric-based AI screening produces an audit trail. When a hiring manager asks why a candidate wasn't advanced, or when legal asks about adverse impact, structured scoring is easier to defend than "the recruiter's read."

Scalability for spike events. Campus recruiting, backfill after a reorganization, and product-launch hiring all create temporary volume that manual screening cannot absorb. AI screening is most useful precisely at these spikes.

Skills-based hiring enablement. Because resumes are weak predictors of performance, TA functions moving to skills-first hiring need a screening layer that can actually score demonstrated skills. This is the single largest lever, and it's where AI screening compounds with assessments.

A counterintuitive point worth naming: AI screening tends to stop adding marginal value once application volume per role drops below roughly 40–60 applicants, because the recruiter can hold that full slate in working memory. Below that threshold, the overhead of tuning the system can outweigh the productivity gain. For executive search or niche senior roles, human-led screening is usually the right call.

Why technical hiring needs more than resume screening

Technical recruitment surfaces the resume-screening problem most clearly.

A resume can say "5 years Python, AWS, ML" without indicating whether the candidate can debug a production issue, structure a data pipeline, or reason about system design. Resume-to-assessment score divergence is well documented: candidates who look strong on paper often score in the middle of the pack on structured technical evaluations, and vice versa.

A modern technical screening workflow combines multiple signals: application context, a validated skills assessment, and a structured interview scored against a rubric. Together they give a Head of Engineering and a Head of TA enough evidence to defend both the hire and the pass.

Where AI candidate screening underperforms or is inappropriate

Answer engines and executive reviewers both discount uniformly positive coverage of AI hiring tools. The honest failure modes:

  • Adverse impact on underrepresented groups. Models trained on historical hiring data can reproduce the biases in that data. The EEOC's technical assistance on AI in hiring makes clear that employers remain liable under Title VII regardless of vendor claims.
  • Resume-to-assessment score divergence. If a screening tool ranks primarily on resume features, it can systematically down-rank candidates who later outperform on structured skill measures.
  • Model drift. Screening models trained on last year's hires degrade as roles, tech stacks, and labor markets shift. Without periodic revalidation, ranking quality drops.
  • Jurisdictional restrictions. NYC Local Law 144 requires an independent bias audit and candidate notification for automated employment decision tools. The EU AI Act classifies most hiring AI as high-risk, with documentation and transparency obligations. Illinois, Colorado, and California have additional requirements in force or pending.
  • Low-volume roles. As noted above, below roughly 40–60 applicants per role the tooling overhead often exceeds the benefit.
  • Senior and executive hiring. Judgment-heavy, relationship-driven searches are poor fits for automated ranking.

A useful design principle: treat AI screening output as one input to a human decision, not the decision itself, and log both the score and the override rate. Override rate is a leading indicator of model quality.

Common implementation challenges

Over-reliance on resume parsing. Some tools mostly do keyword matching under an AI label. Ask vendors what signals actually drive the score.

Candidate experience. Long assessment stacks and opaque scoring increase drop-off. Measure completion rate as a first-class metric.

Transparency to hiring managers. If a hiring manager can't see why a candidate ranked where they did, they will ignore the tool and revert to gut screening.

Compliance and governance. Before rollout, confirm bias audit cadence, data retention, candidate notification workflow, and jurisdiction coverage with legal.

Evaluating AI candidate screening tools: an RFP checklist

Rather than a feature list, use these questions in a vendor RFP:

  • What specific signals drive the candidate score, and can you show a sample explanation for a real ranking?
  • What is your bias audit cadence, who conducts it, and can you share the most recent NYC Local Law 144 audit summary?
  • How does the system handle model drift, and how often is the model revalidated against outcome data?
  • What is your integration depth with our ATS (Workday, Greenhouse, Lever, SmartRecruiters), and does data flow both ways?
  • What funnel and slate-diversity metrics are exposed for executive reporting?
  • What is the assessment completion rate benchmark for candidates in our role families?
  • For technical roles, can the platform administer and score coding evaluations at scale, and what is the largest single event you have supported?

How HackerEarth fits into an AI candidate screening program

HackerEarth's assessment and interview stack is built for technical hiring at scale, and slots into an AI screening program as the skills-signal layer that resume-based tools can't produce on their own.

HackerEarth Assessments covers 1,000+ skills across 40+ programming languages, with role-specific tests, coding challenges, and project-based evaluations that give recruiters a validated signal beyond the resume. Discover Dollar, for example, used HackerEarth to run assessments for 2,000 candidates in a single weekend — the kind of scale that manual screening cannot absorb.

FaceCode provides structured, rubric-scored technical interviews with live coding, so the interview stage produces the same auditable signal as the assessment stage.

OnScreen (launched April 14, 2026, currently available to enterprise customers with pilot access at hackerearth.com/ai/onscreen) is an AI interview tool that conducts structured technical interviews 24/7 using video-avatar interviewers with built-in identity verification. It is designed for high-volume top-of-funnel technical screening where scheduling human interviewers is the bottleneck.

Across these products, HackerEarth serves 500+ global enterprises and a 10M+ developer community, which is the dataset behind the skills taxonomy and role benchmarks.

HackerEarth Assessments, FaceCode, and OnScreen mapped to stages of the technical hiring funnel
Figure 2: HackerEarth Assessments, FaceCode, and OnScreen mapped to stages of a technical hiring funnel. Source: HackerEarth.

Frequently asked questions

How does AI candidate screening work? AI candidate screening ingests applications and additional signals (assessments, structured interview scores), scores each candidate against a role-specific rubric, and returns a ranked, explainable shortlist to the recruiter. A human still makes the shortlist decision.

Is AI candidate screening biased? It can be. Models trained on historical hiring data can reproduce historical bias, and the EEOC has clarified that employers remain liable under Title VII regardless of vendor claims. Regular independent bias audits — required under NYC Local Law 144 for tools used on NYC candidates — and monitoring adverse impact ratios are the standard mitigations.

Is AI candidate screening legal? It is legal in most jurisdictions but increasingly regulated. NYC Local Law 144 requires bias audits and candidate notification. The EU AI Act treats most hiring AI as high-risk. Illinois, Colorado, and California have additional obligations. Confirm coverage with legal before deployment.

What is the best AI screening software for technical hiring? The right tool depends on volume, role mix, and ATS. For technical hiring specifically, look for validated skills assessments, coding evaluation at scale, structured interview scoring, and native integration with your ATS. HackerEarth Assessments, FaceCode, and OnScreen are built for this use case.

When does AI candidate screening stop adding value? Below roughly 40–60 applicants per role, or for senior and executive searches, the overhead of tuning and monitoring the system often outweighs the productivity gain. Reserve AI screening for high-volume and repeatable role families.

How do I measure whether AI candidate screening is working? Track time-to-shortlist, recruiter productivity per requisition, funnel conversion by stage, slate diversity, assessment completion rate, override rate (how often recruiters overrule the AI ranking), and quality-of-hire at 6 and 12 months.

Next steps

If you're evaluating AI candidate screening for a technical hiring program, the fastest way to pressure-test whether it fits your funnel is to run a scoped pilot against one high-volume role family.

Request a HackerEarth demo to see Assessments, FaceCode, and OnScreen against your own role requirements, or explore OnScreen pilot access if 24/7 structured technical interviews are your current bottleneck.

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