
Codility - Detailed Review
Job Search Tools

Codility - Product Overview
Primary Function
Codility is designed to help companies assess and hire the best engineering talent efficiently and objectively. It provides a suite of tools for evaluating candidates’ technical skills, ensuring that hiring decisions are based on evidence and relevant job requirements rather than subjective impressions or brain teasers.Target Audience
The primary target audience for Codility includes global enterprises, tech companies, and any organization looking to hire and develop technical teams. This encompasses hiring managers, HR departments, and technical interviewers who need to identify top engineering talent quickly and accurately.Key Features
Technical Assessments
Codility offers job-specific skills screening and technical interviews that are structured to evaluate a candidate’s actual potential. These assessments include coding tests, problem-solving tasks, and evaluations of logic, teamwork, and communication skills. The platform also includes tools for assessing AI collaboration skills, which is increasingly important in an AI-driven work environment.Assessment Science
The platform is backed by a team of industrial-organizational psychologists who ensure that every task is rigorously researched and validated for fairness and quality. This ensures that the assessments are free from bias and provide a positive candidate experience.AI-Ready Assessments
Codility has introduced assessments for AI-Assisted Engineering skills, which are crucial for evaluating how well engineers can collaborate with generative AI. These assessments are continuously updated to reflect the evolving skills required in the field.Security and Compliance
The platform includes industry-leading cheating prevention and detection mechanisms, such as flexible proctoring, to maintain the integrity of the assessments. It also adheres to high standards for data privacy, security, compliance, diversity, equity, and inclusion (DE&I), and accessibility.Integration and Workflow
Codility integrates seamlessly with existing tools and workflows, reducing administrative time and enhancing adoption. This allows for efficient and secure recruitment events, including high-volume campus recruitment and internal team assessments.Structured Interviews
The platform supports structured technical interviews, which are highly predictive of future job performance. These interviews are loved by both hiring managers and candidates for providing real insights into a candidate’s technical skills. In summary, Codility is a comprehensive solution for technical hiring, offering a range of tools and assessments that help companies make objective, evidence-based hiring decisions while ensuring a fair and positive experience for candidates.
Codility - User Interface and Experience
User Interface
Codility’s interface is web-based and supports a wide range of features to facilitate coding assessments and interviews. Here are some key aspects:
Code Check
This feature provides a web-based coding environment where candidates can complete assessments. It is language-agnostic, offers instant feedback, and includes accessibility options that are WCAG 2.1 Double A compliant. This environment also filters out suspicious activity and plagiarism, ensuring the integrity of the assessments.
Code Live
This is a web-based workspace that allows for live coding interviews. It supports collaboration tools, enabling multiple members of the hiring team to interview, analyze, and score candidates simultaneously. Users can switch between conference and programming modes, and pair programming is possible, along with whiteboarding features.
Ease of Use
The interface is generally praised for its ease of use. Here are some points that highlight its usability:
Clear Assessments
While some users have noted that the problem statements can sometimes be ambiguous or overly precise, the platform itself is easy to navigate. The assessments are set up to be clear and specific, although there have been instances where the wording of tasks has been criticized for being unclear.
Accessibility
The platform is compliant with WCAG 2.1 Double A standards, ensuring that it is accessible to a wide range of users.
Integration
Codility integrates well with other HR and ATS software, making it seamless to sync data and manage the recruitment process.
Overall User Experience
The overall user experience on Codility is generally positive, with some areas for improvement:
Candidate Experience
Candidates can complete coding challenges in a variety of languages and frameworks, with over 40 options available. This flexibility helps candidates feel comfortable during the assessment process. However, some users have reported frustration with the speed and responsiveness of the online portal, particularly when compared to other modern coding environments.
Recruiter Experience
Recruiters find the platform useful for evaluating candidates through automated assessments and live coding interviews. The platform provides detailed reports and analytical tools to help recruiters make informed decisions about candidates. Features like IP checks and suspicious activity filters help maintain the integrity of the assessments.
In summary, Codility’s user interface is designed to be intuitive and supportive, with a focus on facilitating efficient and fair coding assessments and interviews. While there are some areas where the platform could improve, such as the clarity of problem statements and the performance of the online environment, it remains a valuable tool for both candidates and recruiters.

Codility - Key Features and Functionality
Codility Overview
Codility is a comprehensive platform aimed at streamlining the technical hiring process, particularly for coding and engineering roles. Here are the main features and how they work:
Coding Assessments and Challenges
Codility offers a range of coding challenges and assessments that help recruiters evaluate candidates’ coding skills. These challenges are job-relevant and skills-based, rather than brain teasers, ensuring that candidates are assessed on their actual potential.
- CodeCheck: This is a web-based coding environment that provides language-agnostic scoring, testing capabilities, and instant feedback. It also includes accessibility options that are WCAG 2.1 Double A compliant. The system filters out suspicious activity to prevent plagiarism and hides personal identifiable information to ensure fair evaluations.
Technical Interviews
Codility’s CodeLive feature is a web-based workspace for conducting technical interviews. It allows users to switch between conference and programming modes, enabling pair programming and whiteboarding. This feature supports over 40 languages and frameworks, giving users and candidates the flexibility to code comfortably during interviews.
Cheating Prevention and Detection
Codility has robust measures to prevent and detect cheating during assessments. This includes flexible proctoring and a suspicious activity filter to ensure the integrity of the assessments.
AI Integration
Codility incorporates AI in several ways:
- AI Assistant: The platform uses an AI assistant named Cody to identify engineers with AI collaboration and prompt engineering skills. This helps in assessing candidates’ ability to work with AI technologies.
- Generative AI-Resistant Task Library: Codility’s task library is designed to be resistant to generative AI, ensuring that candidates are evaluated based on their genuine skills rather than AI-generated solutions.
- TryAI Service: This service continually tests the solvability of tasks by generative AI, ensuring the assessments remain valid and fair.
Recruitment Campaigns
Codility allows recruiters to run engaging recruitment campaigns through its Code Challenges feature. These campaigns are designed to attract junior-level engineers and other tech talent in a fun and competitive manner. Recruiters can track top performers and engage with potential candidates effectively.
Integration with Other Tools
Codility integrates seamlessly with other recruitment tools and HR software through APIs. This allows recruiters to manage the hiring process from a single platform, reducing administrative time and improving efficiency.
Performance Reports and Analytics
The platform provides comprehensive performance reports that outline candidates’ coding abilities and areas for improvement. These reports help hiring managers make informed, evidence-based hiring decisions.
Customization and Compliance
Codility is designed to meet the specific hiring needs of organizations while upholding high standards for data privacy, security, compliance, diversity, equity, and inclusion (DE&I), and legal defensibility. The platform is customizable to fit the hiring strategy of each organization.
Expert Validation
Codility’s tasks and features are developed and reviewed by expert, PhD-level I/O psychologists to ensure fairness, validity, and relevance. This expertise helps mitigate bias and promotes a positive candidate experience.
By leveraging these features, Codility helps organizations streamline their technical hiring processes, ensure fairness and accuracy in candidate assessments, and make more objective hiring decisions.

Codility - Performance and Accuracy
Evaluating the Performance and Accuracy of Codility
Evaluating the performance and accuracy of Codility in the job search tools AI-driven product category involves several key aspects:
Performance
Codility has established itself as a leading technical hiring platform, known for its ability to test and evaluate the coding skills of developers accurately. Here are some highlights of its performance:
- Assessment Validity: Codility’s assessments are grounded in assessment science, ensuring that the tests accurately measure job-related factors that predict job performance. This is a critical aspect, as it helps in making evidence-based hiring decisions.
- AI-Resistant Assessments: Codility has introduced an AI-resistant library of tasks to mitigate cheating using tools like ChatGPT. This feature allows hiring teams to create tests that are resistant to AI solutions or to identify and filter out tasks that can be easily solved by AI, ensuring the integrity of the assessment process.
- Efficiency and Speed: Codility’s platform enables hiring teams to screen candidates efficiently and accurately. It can help reduce the time and cost associated with traditional hiring methods, such as resume reviews and unstructured interviews, allowing recruiters to focus on higher-touch phases of the hiring process.
Accuracy
The accuracy of Codility’s assessments is a cornerstone of its platform:
- Skill Measurement: Codility’s assessments are designed to measure specific skills that are relevant to the job requirements. The platform uses a skill-mapped content library and technical interviews to ensure that the skills evaluated are directly related to job performance.
- AI-Assisted Engineering Skills: Codility has also developed assessments for AI-Assisted Engineering skills, which evaluate the ability of engineers to collaborate effectively with generative AI. This ensures that the skills measured are aligned with the evolving needs of the engineering profession.
- Objectivity and Fairness: By using valid online hiring tests, Codility introduces objectivity into the hiring process, reducing subjective biases and ensuring fairness for all applicants. This enhances the consistency and accuracy of the hiring decisions.
Limitations and Areas for Improvement
While Codility is at the forefront of technical hiring innovation, there are a few areas that could be considered for improvement:
- Continuous Evolution: As AI technology continues to advance, Codility must remain committed to updating and expanding its AI-resistant task library and assessment methods. This ensures that the platform stays relevant and effective in mitigating cheating and accurately assessing skills.
- Candidate Experience: Although Codility’s assessments are generally well-regarded, ensuring a positive candidate experience remains crucial. This includes maintaining face validity and making sure the tests are not overly daunting or off-putting to applicants.
- Integration and Accessibility: While Codility supports a wide range of customers globally, ensuring seamless integration with various HR systems and learning management systems (LMS) could further enhance its usability and accessibility.
In summary, Codility’s performance and accuracy are well-supported by its rigorous assessment science, AI-resistant features, and focus on measuring job-relevant skills. However, continuous innovation and attention to candidate experience and system integration are essential for maintaining its leadership in the technical hiring space.

Codility - Pricing and Plans
Pricing Plans
Starter Plan
Scale Plan
Custom Plan
Features Across Plans
Cheating Detection
Integration with HR Systems
Customizable Workflows
Interactive Interview Experiences
Free Options

Codility - Integration and Compatibility
Codility Integration Overview
Codility, a leading platform for technical skills assessments, integrates seamlessly with various recruitment and HR tools to streamline the hiring process. Here’s a breakdown of how it integrates with different platforms and its compatibility:
Integration with Greenhouse Recruiting
Codility integrates with Greenhouse Recruiting, allowing users to add a Codility test to their job’s interview kit. To set this up, users need to log in to Greenhouse Recruiting, go to the “Integrations” section, search for Codility, and follow the connection instructions. Once connected, you can add a Codility test stage to a job, select the specific test from Codility, and assign a grader. The test status and results are then viewable directly within Greenhouse Recruiting.
Integration with Pinpoint
Pinpoint also supports integration with Codility. To set this up, users need to obtain their Client Secret and API key from Codility’s settings. These credentials are then entered into Pinpoint’s integrations menu to enable the connection. Once integrated, users can send Codility assessments directly from Pinpoint, view the status of these assessments, and see the total score when available.
Integration with Recruitee
Recruitee integrates with Codility, allowing users to invite candidates to complete Codility tests or participate in CodeLive sessions. The integration involves going to the Recruitee Marketplace, selecting Codility, and approving the integration. Once set up, users can send test invitations and view the results, including scores, directly within Recruitee. The integration also allows for managing who can view evaluations and send invitations.
General Compatibility
Codility’s integrations are generally designed to be user-friendly and accessible across various platforms. The process typically involves obtaining necessary credentials from Codility and entering them into the respective HR or recruitment tool. This ensures that the technical assessments can be managed and reviewed seamlessly within the existing workflow of the user’s preferred platform.
Device Compatibility
While the specific resources do not detail device compatibility explicitly, Codility’s web-based nature suggests that it can be accessed and used on a variety of devices with internet access, including desktops, laptops, and mobile devices. This flexibility is crucial for both recruiters and candidates who may need to access the platform from different locations and devices.
Conclusion
In summary, Codility integrates well with several recruitment tools like Greenhouse Recruiting, Pinpoint, and Recruitee, enhancing the efficiency and accuracy of the hiring process. Its compatibility across different platforms ensures that users can leverage its features without significant technical hurdles.

Codility - Customer Support and Resources
Customer Support
Codility provides free support for up to three months after the initial product launch. After this period, additional support options are available at a set monthly price, which varies based on the duration and content of the support needed. This support is managed by Distributor Managers who will communicate with clients about various support possibilities. For existing customers, Codility has a dedicated support page where users can find help and assistance.
Additional Resources
Technical Assessments and Tools
Codility offers a comprehensive suite of assessment tools to help hire the right engineers. These tools include job-relevant, skills-based assessments that evaluate candidates’ actual potential, teamwork, communication skills, logic, problem-solving, and AI collaboration skills. The platform also features industry-leading cheating prevention and detection, including flexible proctoring.
AI-Assisted Engineering Skills Assessment
Codility has introduced an assessment for AI-Assisted Engineering skills, which is a significant step in evaluating the skills needed for effective collaboration with generative AI. This assessment includes stand-alone tasks and ensures a high-quality, job-relevant experience for candidates.
Integration with Other Platforms
Codility integrates seamlessly with other hiring tools, such as Workable, allowing users to automate the assessment process early in the hiring pipeline. This integration enables hiring teams to send specific tests at different stages of the hiring process and review results directly from the Workable platform.
Training and Development
For developers, Codility provides training resources. Users can access these resources by visiting the specific training page on the Codility website.
Global Support
With a global presence, Codility supports customers in 74 countries, offering a broad reach and localized support through its teams in various locations such as London, Silicon Valley, Berlin, and Warsaw.
Engagement and Community
Codility helps businesses engage with their talent pools and developer communities, even during periods of low or no hiring. The platform allows for custom branding and the organization of efficient and secure recruitment events to attract the best early-career talent.
By leveraging these support options and resources, users can ensure a smooth and effective hiring process, backed by evidence-based assessment tools and ongoing support.

Codility - Pros and Cons
Advantages of Codility
Codility offers several significant advantages that make it a valuable tool for technical hiring:
Comprehensive Assessments
Codility provides a wide range of skills-based assessments, including over 740 tasks that cover basic programming abilities, real-world engineering skills, and technical knowledge. These assessments are job-relevant and help in evaluating candidates’ actual potential.
AI-Resistant Tasks
Codility has introduced an AI-resistant library of tasks to mitigate cheating using tools like ChatGPT. This ensures that hiring decisions are based on the candidates’ genuine skills rather than their ability to use AI to cheat.
Advanced Analytics and Reporting
The platform generates detailed, data-driven reports that show how candidates solve assessments. These reports help employers make informed hiring decisions based on comprehensive data, including correctness, performance, and complexity.
Live Interviews and Collaboration Tools
Codility offers interactive tools for live interviews, such as whiteboarding and pair programming. This provides a holistic view of candidates’ technical and interpersonal skills, enhancing the overall interview experience.
Bias Reduction and Fairness
Codility employs PhD-level I/O psychologists to ensure that every task and feature is reviewed to mitigate bias and promote a fair and positive candidate experience. This helps in making objective, evidence-based hiring decisions.
Seamless Integration
The platform integrates with leading HR tech providers like Greenhouse, iCIMS, and Lever, enhancing workflow efficiency and reducing administrative time.
Customization and Flexibility
Codility allows customization of workflows to meet specific hiring needs, enabling employers to manage teams and regions effectively and build their own assessments.
Disadvantages of Codility
While Codility offers many benefits, there are also some notable drawbacks:
Pricing
Codility’s pricing is not transparent and is available only upon request. Many recruiters consider it expensive, particularly for smaller teams.
Limited Proctoring Features
Compared to some competitors, Codility lacks advanced proctoring features, which can be a concern for ensuring the integrity of remote assessments.
Old and Limited Question Bank
Some users have noted that Codility’s question bank is relatively old and limited compared to other platforms, which might not reflect the latest industry trends and challenges.
Technical Issues
The dependence on technology can lead to issues during live interviews if technical difficulties arise, potentially impacting the candidate experience.
Limited Assessment of Soft Skills
Codility primarily focuses on technical skill assessments and lacks comprehensive tools for evaluating other critical skills such as communication skills.
Complexity of Reports
While the reports provided by Codility are detailed, they can be complex and require time and expertise to interpret fully.
By considering these pros and cons, organizations can make informed decisions about whether Codility aligns with their specific hiring needs and processes.

Codility - Comparison with Competitors
Codility Overview
Codility is a well-established platform for technical skills evaluations, particularly in the tech industry. It offers a vast library of over 2000 skills tests, ATS integrations, and features like proctoring and anti-cheating measures. However, it has some limitations, such as the need for manual library imports and the challenge of creating customized tests, which can be time-consuming.Unique Features of Codility Alternatives
CodeSignal
CodeSignal stands out with its comprehensive skills platform that goes beyond hiring to include AI-powered learning solutions. It helps teams identify and develop skills gaps and supports individuals in cultivating the skills they need. CodeSignal’s platform is versatile and can be adapted to various stages of a candidate’s journey.TestGorilla
TestGorilla is another strong alternative that offers a wide range of skills tests, including both hard and soft skills assessments. It features anti-cheating and proctoring capabilities, ATS integrations, and the ability to create customized tests. TestGorilla also provides a free forever plan, making it accessible for various recruitment needs.HackerRank
HackerRank is known for its coding challenges and technical skills assessments. It offers a large community of developers and a variety of coding tests in multiple programming languages. HackerRank is particularly useful for companies looking to assess coding skills through real-world coding challenges.CoderPad
CoderPad focuses on providing a developer-centric experience, allowing for collaborative coding sessions and take-home assignments. It functions as an IDE, enabling candidates to showcase their skills in a real-world setting. CoderPad is easy to use, scalable, and preferred by nearly 2,000 companies worldwide.eSkill
eSkill offers a modular subject library that allows users to create multiple-subject based exams. It provides job-based assessments for various industries and allows users to edit existing questions or upload their own test content. eSkill is useful for companies needing to assess a wide range of skills beyond just technical abilities.Codejudge
Codejudge is a comprehensive code assessment platform that facilitates assessments in over 20 coding languages and 50 technology frameworks. It includes features like plagiarism detection, AI-image proctoring, and code quality scoring, making it a robust tool for evaluating technical candidates.Additional Considerations
Customization and Integration
Platforms like TestGorilla and CodeSignal offer high levels of customization, allowing companies to create tests that align closely with their specific needs. Additionally, these platforms often integrate with Applicant Tracking Systems (ATS), streamlining the hiring process.User Experience
CoderPad and Codejudge focus on providing a seamless experience for both candidates and interviewers. CoderPad’s IDE-like environment and Codejudge’s project-based assessments ensure that candidates can demonstrate their skills in a practical and meaningful way.Cost and Accessibility
Options like Codejudge, which starts at $3 per assessment, and TestGorilla’s free forever plan, offer cost-effective solutions for companies of various sizes. This makes these platforms more accessible compared to some of the more expensive alternatives. In summary, while Codility is a strong option for technical skills assessments, its alternatives offer a range of unique features that can better suit specific recruitment needs. Whether you prioritize customization, cost-effectiveness, or a seamless candidate experience, there are several alternatives that can enhance your hiring process.
Codility - Frequently Asked Questions
Frequently Asked Questions about Codility
What is Codility and what does it offer?
Codility is a platform that provides online coding tests and technical interviews to help companies assess and hire developers. It offers a comprehensive suite of tools, including skills assessments, live coding interviews, and technical interviews, all designed to evaluate candidates’ technical skills accurately and efficiently.How does Codility ensure the validity and reliability of its assessments?
Codility ensures the validity and reliability of its assessments through rigorous research and validation processes. The platform is developed in collaboration with industrial-organizational psychologists, and the assessments are validated to ensure they are job-related and predictive of future job performance. Codility also provides documentation and validation services to confirm the assessments’ validity for specific job roles.What features does Codility offer for technical skills assessment?
Codility offers several key features, including a comprehensive task library with over 740 tasks covering various skills such as basic programming, real-world engineering skills, and technical knowledge. It also provides live coding interviews through CodeLive, asynchronous role-specific skills assessments with CodeCheck, and coding challenges to engage candidates. Additionally, Codility includes tools for identifying suspicious activity and plagiarism to ensure assessment integrity.How does Codility support the evaluation of AI-assisted engineering skills?
Codility has introduced the industry’s first assessment of AI-assisted engineering skills, which evaluates the skills needed for engineers to collaborate effectively with generative AI. This assessment focuses on skills such as providing feedback to AI models and ensuring an iterative feedback loop between engineers and AI systems. This is part of Codility’s ongoing effort to adapt to the evolving needs of engineering teams in an AI-driven world.What security measures does Codility have in place to prevent cheating during assessments?
Codility has several security measures to prevent cheating. It includes IP checks to ensure the candidate is completing the assessment from the same device and location as the invitation. Additionally, Codility’s Code Check flags suspicious activity and checks for plagiarism. These measures help maintain the integrity of the assessments.How does Codility compare to other technical assessment platforms like iMocha?
Codility and iMocha both offer comprehensive technical assessment tools, but they have some differences. Codility focuses on a wide range of skills with its task library and offers live coding interviews and coding challenges. iMocha, on the other hand, includes real-time simulators, AI-enabled proctoring, and a broader range of coding challenges across more programming languages. Codility automatically evaluates assessments and provides detailed reports, while iMocha offers advanced analytics and benchmarking features.Can Codility be used for internal team skill-mapping and development?
Yes, Codility can be used for internal team skill-mapping and development. The platform allows managers to conduct asynchronous role-specific skills assessments to snapshot the technical skills of their internal teams. This helps in identifying skill gaps and surpluses, enabling more effective team development and resource allocation.How does Codility support high-volume recruitment events?
Codility supports high-volume recruitment events through its CodeEvent feature. This allows companies to host engaging, branded campus recruitment events to quickly identify top early-career candidates. These events can also be used for team bonding and friendly competitions among internal teams.What kind of support and services does Codility offer to its customers?
Codility provides technical support and services to its customers. This includes enterprise-level administration, full anti-plagiarism toolkits, and customized demos to help companies get the most out of the platform. Customers can also contact their Codility representatives for more information on specific features and assessments.How can I get pricing information for Codility?
Pricing for Codility varies depending on the scale of your technical recruitment needs. To get a customized pricing plan, you need to fill out a form on their website, and a representative will reach out to discuss a plan that suits your needs.
Codility - Conclusion and Recommendation
Final Assessment of Codility
Codility is a comprehensive and highly specialized job search tool, particularly geared towards technical hiring and the evaluation of coding skills. Here’s a detailed look at its features, benefits, and who would most benefit from using it.Key Features
Extensive Task Library
Codility offers a vast library of over 740 tasks that cover a wide range of skills, including basic programming, real-world engineering, and technical knowledge. These tasks are designed by in-house assessment engineers and reviewed by expert I/O psychologists to ensure quality and fairness.
Live Coding Interviews
The platform provides tools like CodeLive and Code Check, enabling live coding interviews and collaborative coding exercises. This allows multiple members of the hiring team to interview, analyze, and score candidates simultaneously.
Anti-Cheating Measures
Codility includes advanced anti-cheating features such as IP checks, Similarity Check to detect leaked answers, and flags for suspected AI use. These measures ensure the integrity of the assessments.
Automated Scoring and Reporting
The platform automatically evaluates completed assessments and provides detailed reports, helping recruiters make informed decisions quickly. It also includes features like Code Replay, which allows interviewers to review the candidate’s code line by line.
Integration and Compliance
Codility integrates seamlessly with Applicant Tracking Systems (ATS) and is GDPR compliant, making it suitable for international hiring needs.
Who Would Benefit Most
Codility is most beneficial for companies and recruiters looking to hire technical talent, particularly software developers, engineers, and other IT professionals. Here are some specific groups that would find Codility valuable:Large Enterprises
Companies with high-volume hiring needs, such as those in the Information Technology and Services, Computer Software, and Financial Services sectors, can leverage Codility’s extensive task library and advanced features to streamline their hiring processes.
Tech Startups
Startups needing to quickly and accurately assess technical skills can use Codility’s scalable plans, including the Starter and Scale plans, to meet their hiring needs.
Recruiters and Hiring Managers
Those responsible for technical hiring will appreciate the platform’s ability to provide objective, evidence-based hiring decisions through its scientifically validated assessments.
Overall Recommendation
Codility is an excellent choice for any organization seeking to improve the efficiency and accuracy of their technical hiring process. Its comprehensive suite of assessment tools, advanced anti-cheating measures, and seamless integrations make it a valuable asset for recruiters and hiring managers.If you are looking to reduce the time spent on candidate screening, ensure the integrity of assessments, and make more objective hiring decisions, Codility is a strong option to consider. Its focus on technical skills evaluation, coupled with its commitment to fairness and compliance, makes it a reliable tool in the job search and recruitment landscape.