Senior software architect & full-stack developer — building secure, AI-native software from France 🇫🇷
I've spent 10+ years shipping SaaS products, AI features, and secure web apps — across 120+ projects for 50+ clients. I care about code that holds up under load, code that holds up to audit, and tools small enough to actually understand.
Building polaris — a lightweight RAG over MCP for coding agents — alongside other Rust-based AI tooling and developer infrastructure. Small, sharp tools that do one thing well.
Languages
Frontend
Backend & Data
Infra & Practices
polaris — Lightweight RAG system for coding agents. Index your project docs, search them semantically, serve results over MCP. Single-binary deployment. (Rust)
md2pdf — A markdown-to-PDF library that's actually correct. (Rust)
I take on a limited number of client engagements:
- Full-stack development — SaaS products, AI-powered features, secure web apps
- Frontend architecture — design systems, performance, framework migrations
- Technical consulting & code audits — second opinion, security review, scaling advice
- Mentoring — for individual engineers and small teams
Typical reply within 24h. → guillaumegirard.xyz
When I'm not shipping code, I train Filipino Boxing and FMA (Filipino Martial Arts). Distance, timing, and flow — turns out it's not that different from systems design.