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Developer sourcing for the vibe-coding era

Find developers
who think in systems,
not what they type.

The real problem isn't interviewing — it's finding signal in a pile of polished, AI-assisted submissions. Langos cuts through the noise by revealing how a developer reasons, not just what they ship.
0x
faster to surface genuine senior talent
0%
of AI-assisted submissions look the same
0
whiteboard questions needed
0min
avg. to a full architectural insight report
The Problem

Finding great
developers just
got harder.

Every candidate now submits polished, AI-assisted work. The signal is gone — and the tools built to find it haven't caught up.
Three filters that no longer filter
Résumés are indistinguishable
ChatGPT writes a compelling senior engineer profile in seconds. Every applicant now looks like the candidate you're looking for.
Take-homes are trivially AI-completable
Any task you can set, a model can solve. You're no longer screening for skill — you're screening for who remembered to run the linter.
Thinking style is still completely invisible
The most predictive signal — how a developer reasons, overrides, and refines — is never captured by any résumé, test, or portfolio submission.
The Solution

Meet Langos — a sourcing layer
that reveals how developers think.

Live Demo
AI-native
app.langos.io / session / #42 / marcus-chen / playback
01
The Environment
Candidate clicks a private GitHub Codespace link. Zero setup. Real tooling.
02
The Vibe Recording
Pre-loaded extension captures every prompt, AI response, override, and refinement.
03
The Time Machine
Reviewers replay the entire session — seeing the thinking, not just the result.
How it works
From applicant pile
to genuine signal in three steps.
01
Send a screening task
Replace your take-home with a Langos Challenge. Langos Claude Code based extension captures the thinking behind each decision on the cloned repo.
github.dev / langos / session-id
02
They work naturally with AI
The VSCode extension invisibly records the full developer-AI dialogue: prompts, suggestions, overrides, diffs.
Prompts · Responses · Overrides · Diffs
03
You see who actually thinks
A full session playback surfaces architectural reasoning, prompt quality, and override patterns — so you shortlist on signal, not submission polish.
Vibe Score · Override Map · Shortlist
What teams say
The people doing the hiring
tell it best.
Early access feedback from engineering teams who replaced their take-home process with Langos.
"
We used to spend three rounds of interviews trying to figure out if someone could actually architect a system. Now we know after the screening task. The override patterns alone tell you more than a whiteboard ever did.
EM
Greg K.
Engineering Manager
"
What surprised me was seeing candidates who wrote beautiful code but accepted every single AI suggestion without question. That's not who you want designing your infrastructure. Langos makes that invisible bias visible.
SE
Rishi T.
Staff Engineer
"
We shortlisted a candidate who scored mid-tier on the usual criteria. Her override patterns showed she consistently pushed back on AI's naive solutions. She's now our best hire in two years. We would have filtered her out.
TL
Tim N.
Tech Lead
"
The signal-to-noise ratio in our pipeline went from painful to actually manageable. We interview fewer candidates now and make better offers. The time saved on wasted final rounds alone justifies the switch.
CT
Peter W.
CTO
"
We used to spend three rounds of interviews trying to figure out if someone could actually architect a system. Now we know after the screening task. The override patterns alone tell you more than a whiteboard ever did.
EM
Greg K.
Engineering Manager
"
What surprised me was seeing candidates who wrote beautiful code but accepted every single AI suggestion without question. That's not who you want designing your infrastructure. Langos makes that invisible bias visible.
SE
Rishi T.
Staff Engineer
"
We shortlisted a candidate who scored mid-tier on the usual criteria. Her override patterns showed she consistently pushed back on AI's naive solutions. She's now our best hire in two years. We would have filtered her out.
TL
Tim N.
Tech Lead
"
The signal-to-noise ratio in our pipeline went from painful to actually manageable. We interview fewer candidates now and make better offers. The time saved on wasted final rounds alone justifies the switch.
CT
Peter W.
CTO
Pricing

Simple, transparent pricing.

Pay per screening session. No setup fees, no per-seat costs — just signal.
Monthly Yearly Save 15%
Starter
$67
3 screening sessions / monthl
Full session recording & playback
Override pattern analysis
Vibe Score per candidate
2 custom challenges
Add users
Email support
Claude Code Credits
Configurable per session — start from $10
Most Popular
Mid-tier
$190
10 screening sessions / month
Everything in Starter
5 ready-made challenges
5 custom challenges
Role-based user permissions
Prompt quality scoring
Priority email support
Claude Code Credits
Configurable per session — start from $10
Growth
$450
30 screening sessions / month
Everything in Mid-tier
20 ready-made challenges
20 custom challenges
Role-based access control
Dedicated onboarding call
Claude Code Credits
Configurable per session — start from $10
Custom
Let's talk
Unlimited volume · custom terms
Everything in Growth
Unlimited challenges
Custom session volume & SLA
SSO & private deployment options
Dedicated account manager
Claude Code Credits
Configurable per session — start from $10
Documentation
Set up integrations in minutes.
Step-by-step guides for connecting Langos to your ATS and workflow tools.
🔗
Ashby + Langos Setup Guide
Connect Ashby to Langos in a few steps — generate API keys, wire up the integration, add assessment activities to interview plans, and view completed reports.
Read guide →
Blog
Hiring signal in the vibe-coding era.
Perspectives on developer sourcing, AI-assisted engineering, and what actually separates great engineers from well-prompted output.
Hiring
Why take-home tests no longer filter for senior engineers
Every candidate now submits polished, AI-assisted work. The signal that take-homes once provided has collapsed — here's what's replacing it.
Read article →
AI & Engineering
Architectural override: the one signal AI can't fake
When a developer rejects or corrects an AI suggestion, they reveal something fundamental about how they think. We built our entire scoring model around this moment.
Read article →
Product
Vibe Score explained: how Langos ranks developer reasoning
A breakdown of the signals we capture during a screening session and how they combine into a single, comparable score across candidates.
Coming soon →

Stop guessing.
Start sourcing on signal.

See how Langos separates genuine engineering talent from well-prompted output — before a single interview is scheduled.
Book a Demo
Langos — AI interview intelligence