I'm a software engineer with over five years of experience building scalable backend systems, primarily in Rust, TypeScript, and Python. I enjoy working on developer tools, performance-critical services, and privacy-first infrastructure.

Outside of work, you'll find me training Brazilian Jiu-Jitsu, exploring self-hosted tools, or tinkering with side projects that bridge code and creativity. I care deeply about thoughtful design, well-tested code, and using technology to make systems more fair and accessible.

Online, I go by the alias c12i, short for Collins Muriuki.

What I work with

• Rust
• Python
• JavaScript / TypeScript
• Golang
• Docker / Swarm / Kubernetes / Terraform
• TCP / HTTP / REST / GraphQL / RPC / WebSockets / WebRTC
• Postgres / MySQL / Redis
• WebAssembly