Samuel M.

I build and fix production backends in NestJS and TypeScript, with Angular or React in front and PostgreSQL behind. Code I wrote runs in the NestJS framework itself, in Mongoose, TypeORM and WordPress tools by Automattic, and in Firefox: 230+ pull requests merged into public codebases, each reviewed by the project's maintainers. What I take on: - SaaS backends: multi-tenant data models, authentication and sessions, role-based access, Redis caching, background jobs - REST and GraphQL APIs on PostgreSQL, MySQL or MongoDB, with the migrations and tests that keep them safe to change - Angular and React front ends wired to those APIs - Audits and rescues of existing Node and TypeScript codebases: slow queries, flaky tests, framework upgrades Recent work: - Two years on Ever Gauzy, an open source multi-tenant business platform with 7,000+ GitHub stars: 184 merged pull requests on auth, access control, caching and production debugging - RushHour, a logistics and dispatch SaaS: accounting, invoicing, dispatch and driver management across Angular and Next.js front ends and a shared API - NestJS core: Redis and MQTT requests that hung forever now fail fast. Merged by the framework's creator, shipped in v12.0.2 How I work: a short written plan before any code, small reviewed pull requests, a test with every fix, a progress note every working day. Timezone UTC+2, full overlap with Europe and US East mornings. English and French. Send me the repository or a description of the problem and I will reply with what I would do first.