Coding assessment platform with published science_
Codility Screen evaluates engineering applicants through realistic work simulations. Your talent team gets the submitted code and assessment results before choosing candidates for interviews.
Codility’s 1,300+ validated engineering tasks are designed by assessment engineers and reviewed by occupational psychologists.
Trusted by GitHub, SpaceX, Tesla, EY, LSEG, SAP, Barclays and Citi.
Trusted by GitHub, SpaceX, Tesla, EY, LSEG, SAP, Barclays, Citi.
Codility is rated 4.6 of 5 on G2 and ranked #1 for Enterprise Technical Skills Screening, and a Leader for Skills Management. Rankings come from verified customer reviews and are updated quarterly.
Today’s failing approach: resumes and unvalidated tests leave gaps in your evidence
Resume-first screening
A candidate with a limited resume can be overlooked before demonstrating engineering ability.
Homegrown assessments
When teams use different tasks and scoring criteria, hiring managers can struggle to compare results.
Manual proctoring
More candidates create more monitoring and follow-up work for your team.
Incomplete decision records
A screenshot and informal notes can leave your team unable to explain how a score was produced.
Codility Screen
Use Codility Screen for engineering assessment
A coding assessment platform evaluates candidates through submitted code. Codility Screen runs this stage asynchronously, with tasks selected for the engineering role. You can review the results before committing time to a live interview.
Build your shortlist from task output
- A resume does not give your engineers a solution to inspect.
- Screen lets you choose tasks mapped to the Engineering Skills Model, which covers 210 skills and subskills.
- Candidates complete the assessment in a realistic coding environment.
- Selected tasks are scored automatically against test cases.
- Codility connects with platforms, including Greenhouse, Lever, Ashby, Workday, SAP and SmartRecruiters, so recruiters can review results in their existing hiring process.
The difference: You can select candidates using demonstrated task performance.
Explain the method behind an assessment score
- An undocumented scoring rule gives your team little support when a result is questioned.
- Codility shares its technical manual with prospective and existing clients and updates the manual every six months.
- The methodology aligns with the Standards for Educational and Psychological Testing.
- Codility also provides adverse impact analysis at cut scores.
- Your reviewers can examine differences in results across candidate groups.
The difference: Your procurement and legal reviewers can examine supporting documentation before your team adopts the assessment.
Investigate a result without watching every session
- A recording alone requires your team to locate the events that need attention.
- Screen provides behavioral signals, similarity checks and identity-verification evidence for review.
- Integrity Risk summarizes contributing signals in a reviewable risk level.
- You enable or disable the AI Assistant per assessment.
- When enabled, every interaction is captured as reviewable AI activity.
The difference: Reviewers can inspect specific events before deciding whether further investigation is needed.
Evaluate the evidence before choosing a platform
| Evaluation criterion | Codility evidence |
|---|---|
| A scoring result that can be reproduced | Deterministic scoring gives the same submission the same score |
| Candidate experience | Codility research found 91% rated the content fair and 87% rated the experience Good or Excellent |
| Human accountability | Your team makes the hiring decision; Codility does not make automated employment decisions |
Candidate survey source: Codility post-assessment candidate feedback survey, 48,000+ responses, Oct 2025 to Apr 2026.
Security and data handling
Codility is SOC 2 Type II audited and ISO 27001 certified. You can choose EU or US data hosting. Codility does not train AI models on candidate data.
Frequently asked questions
How is a coding assessment platform different from a take-home assignment?
A coding assessment platform provides task delivery, scoring and review tools in one system. A manually reviewed take-home requires your team to manage those steps itself. Codility Screen supports automatic scoring on selected tasks.
Which technical screening tools use real work tasks?
Is Codility suitable for enterprise engineering hiring?
Can a regulated enterprise review the assessment methodology?
How does Codility handle AI use during an assessment?
Can we add a live interview after Screen?
How is Codility priced?
Review a coding assessment for your role
Bring an engineering role to a 30-minute demo and review the tasks, results and supporting methodology with Codility.
Book a 30-minute demo
Bring an engineering role and we’ll review the tasks, results and methodology with you.