Cohort 1 applications are open. 20 seats. Program starts 13 July 2026. Apply now

How it works

A 12-week engineering simulation built around real product delivery.

Eynvision Labs places participants inside a structured engineering environment where they work in teams, receive product requests, write specs, open pull requests, handle reviews, improve systems under pressure, and contribute to a real public launch.

Apply nowExplore the journey

12 weeks

From onboarding to public release

Squads of 2-3

Same discipline: backend, frontend, or similar

1 public launch

Real users, traffic, feedback, and decisions

The journey

Seven stages. One shared product. Repeated delivery.

Seven macro stages carry the cohort from onboarding to launch. Inside most weeks, the same delivery loop runs again and again.

Each week repeats: RequestSpecBuildReviewMerge

01 / 07Enter a structured engineering environment
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Stage 01

Enter a structured engineering environment

Participants join a cohort designed to operate like a real engineering organization, with shared repositories, squad ownership, and review cycles in place from day one.

  • Repository fluency
  • Team workflows
  • Shared ownership
repository / main

5 commits · 3 branches · 2 active PRs

feat: init squad structure

maina3f2c1
09:12

feat: squad-a auth service

squad-ab7e4d8
10:34

docs: update contribution guide

mainc2a9f5
11:05

feat: squad-b dashboard v1

squad-bd5b3e7
11:48

merge: integrate squad branches

maine8c1a4
13:22

Stage 02

Work inside focused squads

Participants join squads of two or three people with the same engineering background, such as backend-only or frontend-only teams, so reviews come from peers who share the same stack and constraints.

  • Same-discipline squads
  • 2-3 per squad
  • Peer accountability
backend squad / cohort 01

3 backend engineers · shared codebase

JK

Backend engineer

Implementing session API

LP

Backend engineer

Writing integration tests

MR

Backend engineer

Reviewing PR #42

Frontend and other squads run in parallel

Stage 03

Turn vague requests into clear specs

Participants receive deliberately ambiguous feature requests and convert them into clear technical plans, defining scope, identifying edge cases, and deciding what to build before writing a line of code.

  • Scope decisions
  • Edge-case discovery
  • Acceptance criteria
spec / PRD-07 · draft

Original request

“Add a way for users to save their progress between sessions”

Spec v1.0

ScopeAuth users only; session-based persistence
Edge casesExpired sessions, multi-device sync
Out of scopeOffline mode, guest users
AcceptanceSave ≤ 200ms; retain 30 days
Pending squad lead review

Stage 04

Build, submit, and improve through pull requests

Each squad implements their solution on a branch, opens a pull request, and receives structured feedback on code quality, technical design, and product judgment, repeating until the work is merge-ready.

  • Review-ready execution
  • Defensible tradeoffs
  • Merge discipline
pull requests
GitHub pull request review interface showing file changes and review controls

Stage 05

Handle production pressure

The simulation introduces traffic spikes, performance bottlenecks, abuse cases, and security events. Participants learn how engineering decisions change when reliability actually matters.

  • Monitoring
  • Incident response
  • System hardening
monitor / production · live
2 active alerts

Requests / sec

1,247

+18% spike

P95 Latency

284ms

⚠ above threshold

Error rate

0.4%

within nominal

Request volume (last 10 min)

Stage 06

Learn from industry operators

The program includes sessions with operators from YC startups, AWS, Cursor, and similar environments. These are people who have built, scaled, and shipped real systems and connect the simulation to how industry actually works.

  • Operator judgment
  • Industry context
  • AI-native workflows
Industry operators

Guest sessions from founders, engineers, and operators who have built and shipped at high-growth teams across engineering and AI.

Y Combinator

Y Combinator

Markaz Tech

Markaz Tech

JazzCash

JazzCash

Antematter

Antematter

AWS

AWS

Cursor

Cursor

Vector

Vector

Y Combinator

Y Combinator

Markaz Tech

Markaz Tech

JazzCash

JazzCash

Antematter

Antematter

AWS

AWS

Cursor

Cursor

Vector

Vector

Stage 07

Launch a real B2C product through ads

The simulation ends with the public launch of a real B2C product. Real users, real traffic, real feedback, and the decisions that only emerge when software meets the market.

  • Real users
  • Launch operations
  • Product feedback
week 12 · launch day
Product is live
Users today

247

+34 last hr

Conversion rate

3.2%

above target

Avg session

4m 12s

healthy

Pages / session

5.8

strong engagement

Bounce rate

38%

below avg

What changes by week 12

You leave with evidence of how you work.

The outcome is not another isolated project. It is repeated experience making decisions, shipping with other people, and responding when software meets reality.

  1. 01Worked inside a real team structure
  2. 02Shipped reviewed code
  3. 03Handled ambiguity before implementation
  4. 04Improved systems under production pressure
  5. 05Learned directly from industry operators
  6. 06Contributed to a public product launch

Admissions

Ready to work inside the simulation?

Cohort 1 applications are open for 20 online seats. The program starts 13 July 2026.

Start application