Prove real engineering ability.
Whiteboard trivia and take-homes both fail — one is unrealistic, the other is gameable. Prelim measures how candidates actually build, in a live environment your team believes.
Real repos. Real tasks. Real signal.
Candidates work in a full IDE against realistic problems — reading existing code, designing systems, and shipping working solutions. Specialized assessors grade reasoning and correctness, and anti-cheat flags anomalies without punishing legitimate tooling.
- Live, browser-based coding IDE with real repositories
- System-design and DevOps exercises, not just algorithms
- AI-assisted grading of correctness and approach
- Integrity signals that survive the age of AI copilots
Teams skip the take-home backlog and interview only candidates who already cleared a real technical bar.
Six dimensions, one defensible score.
Coding ability
Correctness, structure, and readability on realistic tasks.
Live coding IDE
A full editor with test runners and real repos in the browser.
System design
Architecture and trade-off reasoning, scored consistently.
DevOps & tooling
Practical skills with CI, containers, and infrastructure.
Anti-cheating
Proctoring and integrity signals tuned for the AI era.
Skills matrix
A ranked, explainable breakdown per competency.
Supported languages & frameworks.
The live coding environment covers the stacks your engineers actually use.
Roles commonly assessed.
Questions teams ask us.
Interview only engineers who can already build.
Bring one open technical role. We'll assemble the assessment live and show you a sample skills matrix.