Backend engineer building systems that handle real concurrency and state.

I build backend systems, developer tools and products from the ground up, currently going deep in distributed systems and developer tooling.

A stateful alternative to curl, built from scratch in Rust - stores base URLs, headers and variables so you're not retyping the full request every time.

• 48 GitHub stars · 111 release downloads · 59 installs via Crates.io · 3 external contributors
• Persistent sessions, variable interpolation and pretty-printed JSON output across 23 commands
• Cuts ~10-15s off every repeated API call by eliminating request reconstruction

→ reqsh.dev

A limit-order matching engine and exchange backend, built to understand how real trading systems work end to end.

• 3,392 orders/sec throughput · 0.82ms average match latency · 500 concurrent WebSocket connections with zero drops (local benchmark)
• Order book built for O(log n) insertion and O(1) best-bid/ask lookup, with price-time priority matching
• Orders are sequenced through Redis Streams into a single-threaded matching engine, race conditions are eliminated by design, not patched with locks
• A dedicated worker aggregates the trade stream into OHLCV candles in real time, independent of the matching engine's critical path

→ paperdrill.dev

Languages Rust TypeScript JavaScript Python

Backend Node.js Express Next.js REST APIs WebSockets

Data & Infrastructure PostgreSQL Redis MongoDB Docker Linux Git Nginx

Going Deeper Concurrency Networking Async Systems Distributed Systems

Currently Exploring LLM Fundamentals AI Systems

_{Build systems. Ship software. Learn from what breaks.}