Mathias Pellegrin
Backend engineer
I build backends and keep them running. Mostly multi-tenant SaaS, logins and APIs, in TypeScript, Node.js and SQL. I live in Brussels and work remotely.
Smarteaming
2020 – present
A scheduling and payroll app for shift-based teams. I built it alone and have run it since 2020. About ten companies use it, with a few hundred users.
Chain-Fi
CTO, May 2024 – February 2026
I wrote the company's OAuth 2.0 server from scratch, plus the backend API, the developer portal and the JavaScript SDK. The company closed in 2026.
Hackathons
2025 – 2026
Won the Conflux Global Hackfest 2026 and the Conflux Summer Hackfest 2025. Second at the Conflux AI Agent Hackathon 2025. The contracts are live on mainnet.
Availability
I'm looking for a full-time remote backend job. I also do fixed-scope contract work through my UK company, MBP Enterprises Ltd. I work in English, French and Dutch.