Pick your workout

Real engineering decisions. No ready-made answers: observe, reason, decide.

Mini-games

{ }Available
Refactoring
Legacy Nightmare
Fix the bug buried in spaghetti code without breaking anything.
1 level
A|BAvailable
Trade-offs
Tech Dilemmas
Survive a sprint of impossible trade-offs.
1 level
PRAvailable
Code review
Poisoned Code Review
A flawless-looking PR hides a time bomb. Find the line.
3 levels
gitComing soon
Git
History Untangling
Turn a chaotic commit graph into a clean history.
No levels
RPSComing soon
DevOps
Prod Pressure
Keep production alive through Black Friday, on budget.
No levels
0dayComing soon
Security
The Heist
Read the API, find the logic flaw, exploit it.
No levels
CAPComing soon
Distributed systems
CAP Workshop
Pick the right trade-offs before the network splits.
No levels
<T>Coming soon
Design patterns
Attack of the Feature Creeps
Absorb endless business rules without rewriting your core.
No levels