AI can write codenow. Hire the engineerswho can build

AI has changed how engineering teams deliver. The engineers who thrived two years ago may not be the engineers who thrive now. You need signal on who can build in this environment: your current team and your next hires.

Codility gives you that signal, backed by methodology that holds up when questioned.

Filter candidates before technical interviews

See how candidates work

Know what your engineering team can do

See the platform

Tailor your AI

Choose how AI fits in

AI is reshaping how engineering teams build, ship, and scale.

This is the new baseline. But not every team is in the same place, and not every role requires the same approach.

Codility lets you define how AI is used in your assessments. The real question is not whether someone uses AI tools. It is whether they can build with them.

We assess for the skills that matter in AI-native engineering:

Prompt engineering that produces reliable output
Knowing when to trust the machine and when to override it
Evaluating and debugging AI-generated code

A growing library of AI-specific tasks built for real engineering roles. Not generic coding puzzles with an AI wrapper.

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Real IDE, real signal

Assess in VS Code with full tooling: package installation, terminal access, multi-file projects, documentation.

You see how someone works, not how they cope with artificial constraints.

Automated code analysis evaluates quality, maintainability, and complexity. Two people can solve the same problem correctly. One writes code your team would be proud to maintain. The other creates technical debt from day one. Not just code that compiles. Code your team would merge.

Integrity means knowing who is at the keyboard, not policing which tools they use. Identity verification, impersonation detection, proctoring. The signal is the person.

See how it works

Proof, not proxies. Skills-based hiring gives you evidence, not intuition

University, past employers, whiteboard performance. These are proxies that correlate weakly with job success. You need answers to better questions. Can they build? Will they communicate in PRs and code reviews? Do they fit how your team operates?

81% of companies use skills-based hiring

94% say skills predict job success better than resumes

70% of employers now shifting toward skills-first hiring

90% report fewer hiring mistakes with skills-based hiring

See your team’s capability

Explore Skills Intelligence

For engineering leaders

Know what your team can actually do.

Skills Intelligence surfaces capabilities you did not know existed. Identify language and framework gaps across your organisation. Staff teams and projects on validated skills, not assumptions. Know what exists internally before you hire externally.

For engineers

Know where you stand. See where to develop.

Validated skills that travel with your career. A profile based on demonstrated capability, not self-assessment.

The platform

See the platform

Screen

Candidates work through real problems in their own time. You get signal on who can build before your engineers are pulled into interviews.

Interview

Structured technical interviews in VS Code. You see how candidates actually work, not how they perform under artificial pressure.

Skills Intelligence

Map what your engineering organisation can actually do. Know what exists internally before you hire externally.

Customer stories

Codility powers over 20,000 engineering teams. From major enterprises to ambitious startups.

With Codility, our teams ran 750 candidate tests over 90 days, saving 2,200 hours of interview time. That kind of productivity is like gaining time to launch an entirely new product or enter a new vertical.

Chris Weber Global Head of Recruitment, AI Operate Solutions at Unity

Codility helps us remove bias by ensuring a consistent, equal, and fair process for every candidate at LiveRamp.

Erika Thorson Head of Global Talent Acquisition at LiveRamp

With Codility we’re getting the right quality of candidates, engaging with those who have the right skill set.

Yasar Ahmad Global Head of Tech Talent at Zalando

Codility is an accurate representation of coding skills. It’s more accurate than whiteboard interviews.

Stephen Byrne Lead Recruitment Manager at Dolby

When hiring senior developers, we use a platform built by engineers for engineers.

Jose David Arteaga Alvarez Talent Acquisition Manager at Tipico

Codility is a great solution for teams who need quality high-volume hiring. It brings consistency and scalability.

Vicky Xiong Senior Director of Engineering at Okta

Candidate stories

The assessment was well-designed and closely aligned with real-world data engineering tasks. It allowed me to demonstrate structured thinking across algorithms, SQL, ETL, and analytics in a practical setting. The instructions were clear and the platform was smooth to use.

Task: build a PySpark ETL

Data engineer candidate February 2026

The problem was practical and closely aligned with real-world scenarios. The platform was smooth, and the test cases helped validate edge cases effectively.

Task: build a Spring Boot API

Java and Spring developer candidate April 2026

The platform was stable, the problems were clear, and the setup was easy. I appreciated how realistic the tasks were. They reflected real-world development scenarios rather than artificial puzzles.

Task: implement a RESTful API in .NET Core 8.0

.NET developer candidate October 2025

The entire process was seamless, from the initial instructions to the final submission. The time allocated was fair, and the test environment felt professional and stable.

Task: build a PySpark ETL

Data engineer candidate January 2026

The tasks were clearly designed to evaluate hands-on skills. The combination of coding and configuration work reflected real engineering challenges and encouraged thoughtful, practical solutions

Task: write a Kubernetes Deployment definition

DevOps engineer candidate January 2026

It allowed me to demonstrate real-world test automation skills using Java and Selenium in a clear and practical scenario. It was challenging, realistic, and well structured.

Task: validate a login page using Java and Selenium.

Test automation candidate April 2025

Well structured and relevant to real development tasks. It allowed me to demonstrate my problem-solving skills and knowledge of Kotlin and Android development in a practical way.

Task: create an Android interceptor that adds a Bearer Authorization

Android and Kotlin developer candidate March 2026

It felt very practical and aligned with real-world tasks, combining data analysis, problem-solving, and model building in a clear and structured way.

Task: fit a linear regression

Data scientist candidate March 2026

Compliant, integrated, defensible

Assessments designed by I/O psychologists with documented methodology and auditable scoring.

SOC 2 audited. ISO 27001 certified. CCPA and GDPR compliant. WCAG 2.2 AA accessible.

Plugs into your existing tech stack, from applicant tracking to HRIS.

API access for custom workflows. Operational within four weeks.

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See what your engineers can really do

Whether you are hiring your next engineer or understanding the team you already have, the first step is the same. Tell us what you are working on and we will show you how Codility can help you.

Talk to us