AI-generated backend challenges tailored to your stack. Rate limiters. Auth systems. Message queues. Real engineering problems — not another todo-list tutorial. Every challenge saved to your personal library, forever.
247 devs waiting · no credit card required
You open a new tab. Twenty minutes later you haven't written a single line.
No memory between sessions. Generates the same five patterns. You spend 20 minutes tweaking prompts and still end up with a generic CRUD app with zero engineering constraints.
Algorithm puzzles, not backend systems. Reversing a linked list ≠ building a rate limiter. Wrong skill, wrong muscle, wrong context.
A 2019 blog post. A todo-list tutorial. Stack Overflow from before Docker. Not what you needed. Never what you need.
Pick your stack, difficulty, and an optional theme. Done in under three seconds.
Select your tech stack, difficulty level (Junior to Principal), and optionally a theme. Leave the theme blank for a curated real-world scenario.
The challenge streams to you in real time via SSE — no loading spinner. First content in under 1.5 seconds. You read while it generates.
Every challenge is automatically saved to your personal library. Review, retry, or share with your team. Credits never expire.
Choose language, framework, difficulty. Get a challenge that mirrors what you actually build at work — not what a bootcamp teaches in week three.
Rate limiters. Auth systems. Telemetry pipelines. Message queues. Scenarios you'd encounter on a real team, with real non-functional requirements.
Every challenge is saved automatically. Your history, your bank, your context. Credits never expire — use them whenever you want.
Challenges stream token by token via SSE the moment generation starts. No loading spinners. First content in under 1.5 seconds, every time.
This is actual output generated by the system. No CRUD. No toys.
FinTrace provides automated financial reconciliation for mid-market brokerage firms. Under regulatory pressure, the team needs an immutable, append-only audit ledger — a centralized repository for every critical financial event, cryptographically verifiable and strictly sequenced. Only authorized service principals may write. The current log-based system cannot survive the upcoming compliance audit.
Implement an "Integrity Check" endpoint returning a SHA-256 hash of the last 10 records for a given origin_service_id. Allows downstream consumers to detect database-level tampering by comparing hashes over time.
No subscriptions. No monthly fees. Credits never expire.
Join the waitlist. The first 753 spots get 10 free challenges at launch. No credit card. No spam.
247 devs already waiting