$ pypes --validate-before-hire

Stop Hiring Junior DevsWho Break Production

A realistic Developer simulation that proves job-readiness before day one.

Replace whiteboard interviews with a hands-on test that shows how candidates actually work in a real codebase.

$15k-$50k
Cost of a bad hire
0 Retries
Just like real work
100% Real
Actual codebase

Trusted by engineering teams, bootcamps, and hiring managers who care about real-world performance — not trivia.

Hiring juniors is risky.

Whiteboard interviews don't reflect real work
Git mistakes break builds and slow teams
"Can code" ≠ "can ship safely"
Bad hires cost $15k–$50k in lost time

Most teams find this out after the hire.

We show it before.

terminal
$ git push origin main
! [rejected] main -> main (non-fast-forward)
error: failed to push some refs
$ npm run build
ERROR: Type 'string' is not assignable to type 'number'
Build failed. 24 errors.
// Production is down for 3 hours
// Senior dev has to fix it
// $50k in lost productivity
_

A Job-Readiness Simulation
Not a Quiz

Candidates complete a timed, realistic Git workflow in a real codebase.

They must:

1
Clone a repo and create a feature branch
2
Make changes and run tests
3
Resolve merge conflicts
4
Open a PR and respond to review feedback
5
Fix a failing CI pipeline
×No hints
×No tutorials
×No retries

Simulation in progress...

Time remaining: 45:23

Exactly what they'll do on your team.

A Clear Hiring Signal
You Can Trust

After completion, you receive:

Readiness Score
0–100
Hire / Caution / No-Hire
recommendation
Skill breakdown
Git, PRs, debugging, CI
Risk flags
slow merges, unsafe habits
Replay
every action the candidate took

This replaces subjective interviews with evidence.

View Sample Scorecard →

Why It Works

We test what actually matters.

We don't ask trivia.

We don't teach concepts.

We observe behavior under real conditions.

Hiring managers use this to:

Eliminate weak candidates early

Defend hiring decisions with data

Reduce onboarding drag on senior engineers

Who It's For

Engineering Teams

Validate junior devs before they touch production

Bootcamps

Prove graduate readiness to employers • Improve placement outcomes

Staffing & Recruiting Firms

Increase placement success • Reduce client churn

Pricing

Transparent. Simple.

Per-Candidate

$150
per candidate
Minimum 10 seats

Team / Bootcamp Licenses

Annual plans available
Volume discounts included

No long-term contracts required.

Replace Guesswork
With Proof

See exactly how candidates work — before you hire them.