Now in Early Access

See how your candidates
actually think.

CollabSignal gives engineers real tools and real AI, then shows you exactly how they use them. No more guessing.

Request Access See it in action

Traditional platforms

Ban AI. Test memorization. Return a pass/fail score.

CollabSignal

Embrace AI. Observe behavior. Deliver a complete profile.

76% of developers use AI coding tools*
70% never set up AI collaboration properly**
0% of traditional interviews measure this

* Stack Overflow Developer Survey 2024  ·  ** Anthropic AI Fluency Index 2026

What we measure that no one else can.

Prompt Engineering

How specific and contextual are their AI requests? We analyze every payload.

65% Human 35% AI

Code Ownership

What percentage of the final code was written vs AI-generated vs modified?

WriteTestFixTest

Verification Discipline

Do they test continuously or only at the end? The cadence reveals everything.

Architectural Thinking

Do they read the codebase first? Do they understand the system before changing it?

Bug Injection & Detection

AI introduces subtle, realistic bugs — the kind research shows slip into production unnoticed. Can your candidate catch what the AI gets wrong?

TS Python Java C# .ipynb

Every Tech Stack

TypeScript, Python, Java, C# — and Jupyter notebooks for ML engineers. Full IDE with AI coding agent, every time.

Three steps. Zero overhead.

01

Create a session in 30 seconds

Bring your own repo with a challenge, or choose from our curated library. Set the parameters, share a link. That's it.

New Interview Session
https://github.com/acme/billing-service
TypeScript
60 min
Easy Medium Hard
Share link https://collabsignal.ai/session/a8f2c9...
02

Candidate works naturally

Real Agentic IDE. Real AI coding agent. TypeScript, Python, Java, C#, or Jupyter notebooks — every stack, no artificial constraints.

Agentic VS Code interface
03

You see everything

A complete behavioral profile. Not a score — a signal.

Candidate Report — Sarah Chen
Sarah Chen TypeScript · 47 min · Medium Difficulty
Strong Hire
Prompt Specificity87
Code Ownership72
Verification94
Architecture78
Iteration Speed81
AI Calibration69

Built for engineering leaders who
know the world changed.

Simple, credit-based pricing.

1 credit = 1 interview session. No surprises.

Free

$0/mo
  • 5 sessions per month
  • Basic AI signal analysis
  • Single interviewer
  • Email support
Get Started Free
Most Popular

Team

Starting at $99/mo
  • Credit-based sessions
  • Full AI signal suite
  • Live & take-home interviews
  • Team access & collaboration
  • Bug injection & detection
  • Candidate comparison insights
  • Priority support
Request Access

Enterprise

Custom
  • Everything in Team
  • SSO & SAML
  • API access
  • Custom integrations
  • Dedicated support
Contact Us

Ready to see what you've been missing?

Join 200+ engineering teams in early access.