Hi, I'm

Jules ESPINOUX

I'm an engineer from ISAE-SUPAERO who enjoys building reliable software at the intersection of AI and software engineering.
I have notably worked at Mistral AI, Salomon and the French Ski Federation. Following my internship at Salomon, the team reached out to bring me back for a second engagement as a data consultant.

My major realisations

Mistral AI

Connectors Debugger

Developed during my internship to test MCP connectors and diagnose connection, authentication and tool discovery issues.

Watch demo → Documentation ↗

French Ski Federation

My work with national team coaches

Built a performance analytics platform for France’s national cross-country skiing and biathlon coaches, with continued support after my internship.

Simon Fourcade, Cyril Burdet and fellow French coaches using the analytics platform at the Oberhof World Cup in January 2025 — French national coaches, including **Simon Fourcade** and **Cyril Burdet**, using the platform at the Oberhof World Cup.

Internship story → The first season →

Selected writing

View all →

February 2026

🎢 My end-of-studies internship search

My internship search story: FAANGS rejections, relentless networking, LeetCode grind, and how I finally landed my int...

January 2026

👟 A Short-Term Mission at Salomon

A five-day data engineering mission at Salomon: from customs compliance to building the foundations of an automated d...

November 2025

⛷️ My Work for the French Ski Federation (1st season)

Building and maintaining the biathlon analytics platform for French coaches. From real-time race data to bug fixes on...