Tier 1 · Full loopStart the demo
AI engineer
From first-screen to behavioral. Coding in a Modal sandbox with an AI pair, then behavioral by voice.
MidSeniorStaffPrincipal
The loop · ~90 min total
01
Resume screen
2 min · Async
→
02
AI voice screen
15 min · Live
→
03 · live
Coding sandbox
45 min · Sandbox
→
04
System design
30 min · Voice
→
05
Behavioral
15 min · Voice
5-min sample · Coding sandbox
Fix a flaky RAG retrieval
A retrieval pipeline returns wrong chunks 30% of the time. Debug it.
5 min · timedFree · sign up to startSame scoring as production
Try any round individually
Resume screen
Auto-extracts signal — companies, scope, recency, claims worth probing.
2 min · Async · $0.08
AI voice screen
A 15-min phone screen by a voice agent with role-specific rubric.
15 min · Live · $4.00
Coding sandbox
Real Modal-sandboxed environment. Candidate pairs with an AI like a senior engineer would.
45 min · Sandbox · $7.50
System design
Design a system out loud with Sage pushing on trade-offs — scale, failure modes, what you would cut.
30 min · Voice · $4.00
Behavioral
STAR-style situational prompts. Scored on specificity, ownership, learning.
15 min · Voice · $4.00