FR ←

BACKEND & API DEVELOPER

Elixir · Phoenix · Node.js · NestJS · PostgreSQL · SaaS · REST API Integration

4 years of professional experience on SaaS business management software, with a strong appetite for technical investigation, debugging and API consumption. Self-taught since the 90s (from 68k assembly to modern architectures), I take a pragmatic approach to development. I am proficient with the Elixir/Phoenix & Ash stack. Frontend experience with JavaScript, Vue.js and Angular, and backend with Node.js, Express and NestJS. I integrate generative AI (Claude Code) into my workflow. Open Source contributor.


Professional experience

SELLSY 2022 — 2026
2023 — 2026

Care API Representative

  • Advanced technical investigation: REST request analysis, resolution of complex bugs across data flows (invoicing, CRM, inventory, accounting connectors).
  • Support / Engineering interface: Rigorous bug reproduction, regression testing and detailed technical tickets for the development teams.
  • Developer documentation: Writing and structuring the API Notion space for external integrators.
  • Support for third-party integrations: Make, n8n, Chift (accounting connectors).
Highlights Authored 30+ technical articles (now the tier-2 reference).
Created a direct Support ↔ Engineering communication channel.
Designed an architecture POC (Fastify/Redis) for high-performance webhook handling, validated by the technical team.
2022 — 2023

Backend & Frontend Developer

  • Backend (Node.js): Development and maintenance of complex data import Workbooks via Flatfile.
  • Debugging & Maintenance: Resolution of critical production bugs on a legacy PHP/XSL backend.
  • Frontend (Vue.js): Maintenance and new features on the import templates.
2018 — 2022
SITEL

B2B Customer Advisor

  • Technical and commercial support (SFR Business, MAAF Assurances): handling of complex incidents and escalations.
  • Training and technical mentoring of new advisors.
2005 — 2017
CASINO DE CHÂTELAILLON

Service Manager

  • Team management (5 to 9 people), scheduling and performance tracking.
  • Budget management and technical maintenance (electrical systems, audiovisual).

Open source contributions

published packages · hex.pm

[released] cfonb — Elixir parser for CFONB bank statements
[released] facturx — Factur-X invoice generation (PDF/A-3 + XML)
[released] search_ash — PostgreSQL full-text search for Ash Framework
[released] green_cal — seasonality calendar for market garden crops

upstream contributions

[merged] elixir-lang/elixir · elixir-ecto/postgrex · ash-project/ash

Personal projects

  • Multi-tenant SaaS platform (launching) — Elixir, Phoenix LiveView, Ash Framework, PostgreSQL (Fly.io). End-to-end DDD architecture design, from operations management to invoicing. (Production release imminent).
  • iPad order-taking application — Swift / Firebase. Built from scratch, used in production for 6 years (Egalim public procurement / local producers).
  • HL7 → JSON parser — Elixir, healthcare data interoperability and integration.
  • High-performance webhooks POC — Node.js (Fastify/Redis), design assisted by generative AI.