Tier 1 · Full loopStart the demo
AI agent engineer
From first-screen to behavioral. Coding in a Modal sandbox with an AI pair, then behavioral by voice.
MidSeniorStaffPrincipal
The loop · 180 min total
01
AI Voice Screen
30 min · Live
→
02 · live
Coding Round
60 min · Sandbox
→
03
System Design
60 min · Voice
→
04
Behavioral Interview
30 min · Voice
5-min sample · Coding Round
Build a tool-using agent
Wire a tool-calling agent to a mock filesystem. Make it not loop.
5 min · timedFree · sign up to startSame scoring as production
Try any round individually
AI Voice Screen
A 30-minute phone screen by a voice agent with role-specific rubric.
30 min · Live · $4.00
Coding Round
Candidate works in our browser IDE or their own development environment, pairing with AI like a senior engineer would.
60 min · Sandbox · $7.50
System Design
Design a system out loud with Sage pushing on trade-offs — scale, failure modes, what you would cut.
60 min · Voice · $7.50
Behavioral Interview
STAR-style situational prompts. Scored on specificity, ownership, learning.
30 min · Voice · $4.00