Codility

🎯 Should you use Codility?

Buy if: You hire 50+ engineers per year and need standardized tech screens that cut first-round time by half.

Skip if: You hire fewer than 20 engineers annually or your team values unstructured problem-solving over leetcode performance.

⚡ In practice

• ●Setup: 2-3 weeks to configure test library and ATS sync
• ●Screening 100 applicants: Takes 4 hours instead of 40
• ●Live interviews: Solid shared IDE, weak for system design
• ●Custom tests: Works if you like their question format

⚠️ Where it breaks

• ●Proctoring flags false positives on candidates who Google docs or switch tabs to check notes.
• ●Senior engineers with 10+ years often score lower than bootcamp grads who drill leetcode.
• ●No published pricing means every deal is negotiated, typically $15k-$50k based on volume.
• ●CodeChecker catches obvious plagiarism but misses paraphrased solutions from Discord.

💸 Is it worth the money?

Contracts start around $15k for 100 assessments, hitting $30k-$50k at enterprise scale. Worth it if you screen 200+ engineers yearly and your bottleneck is coordinator time, not if your issue is interview quality or downstream attrition.

🆚 If not this

• ●HackerRank -> Cheaper per seat, weaker live interview tools
• ●Karat -> Outsourced interviewers, triple the cost, no self-service
• ●CoderPad -> Pay-per-use live interviews, skip the test library

🎯 Final verdict

Buy if your pipeline drowns coordinators in first-round scheduling and you trust standardized tests to predict job performance.