Prove you can debug anything.
Solve real engineering tickets from fake company codebases. Get scored by Claude AI on your thinking — not just whether the tests pass.
From ticket to score in 3 steps
Get a real ticket
Ambiguous engineering tickets from realistic fake codebases. No toy problems — actual production complexity.
Solve it your way
Use any tool — Claude, Copilot, ChatGPT. We score your thinking, not whether you used AI.
Claude scores your PR
Open a PR with your reasoning. Claude evaluates root cause, design, communication, and execution.
Not another coding quiz
Real engineering is messy, ambiguous, and full of hidden context. We simulate that.
Real codebases, real bugs
Not algorithm puzzles. Actual .NET, Node and Python services with race conditions, fire-and-forget anti-patterns, and conflicting business rules.
Diagnosis is 40% of your score
Finding WHY a bug exists is 10× harder than fixing it. We reward engineers who go deep on root cause analysis.
Track 4 dimensions over time
Diagnosis, Design, Communication, Execution. See your chart evolve as you complete tickets and spot your weakest area.
Built for teams and hiring
Employers run assessments, rank candidates by score, and track training across the org — all from one dashboard.
Execution is only 10%
Shipping code that works is table stakes. Understanding why the bug exists separates senior engineers.
Simple, honest pricing
Free plan to try it. Pro when you're serious about levelling up.
- ✓ 2 tickets per month
- ✓ Full AI-scored feedback
- ✓ Public profile page
- ✓ Score history
- ✓ All NovaTech CRM tickets — unlimited
- ✓ Claude AI scoring on every PR
- ✓ Full written feedback — Diagnosis, Design, Communication, Execution
- ✓ Score history on your dashboard
- ✓ Public shareable profile
- ✓ More codebases as they launch
Payments processed securely by Stripe. Cancel anytime.
Ready to find out how good you really are?
Your first ticket is free. No credit card. Just your GitHub account and your best thinking.
Get started — it's free