I am...
people-focused

Engineer by trade. Human by choice.
I build tools for people who give a damn about the world.

Freelance work
One person, multiple facets

What I actually do

NOÉ app screenshot

NOÉ — Open-source event platform

Main project · 5+ years · 4000+ hours

Lead developer of NOÉ, a platform for associations, festivals and collectives to manage event schedules, volunteers, and registrations. React, Node.js, MongoDB. I owned every technical role — architecture, dev, dev-ops — over five years. 60+ events across France and beyond.

Freelance work

Freelance development

Websites, apps, and custom tools. From landing pages to full-stack products, I clarify the need, propose and ship. My experience with NOÉ taught me versatility, and I won't disappear after delivery.

DJ Baby Djules

DJ — 𝔹𝕒𝕓𝕪 𝔻𝕁𝕦𝕝𝕖𝕤

From house to hard groove, to techno to trance, with a delicious pinch of latin grooves, I love mixing genres: if it moves people, I'll play it. Why "Baby"? To remind me to never stop being curious and always keep improving.

The Honest DJ Library Manager

The Honest DJ Library Manager

A tool I built for myself because messy DJ libraries are a nightmare. Then released it for the people. Free, open-source. Still a draft project.

Try it
🌍

Activist

Volunteering at Alternatiba (climate justice), the Virtual Assembly (digital tools for commons), and other collectives trying to do good in the world.

The human behind the keyboard

Who is Jules?

I'm a fullstack engineer with a CS degree from INSA Rennes and an MSc in Innovation & Entrepreneurship. I've worked for a large renewables player, built logistics tools for an innovative cooperative, and spent the rest of my time on open-source and climate projects.

For five years I've been the main developer behind NOÉ. That means shipping features with near-zero budget, making architectural decisions, and keeping real users happy. I've learned the best technical decisions aren't always the most elegant; they're the ones our small team can maintain, users can understand, and the project can survive. That's how I built the reflex of figuring things out, asking the right person for help, and never waiting for anyone to unblock me.

I've always believed the best engineers are also curious humans, who do things outside the IDE. This shows up in the software I build: readable, empathetic, designed for real use.

I code with AI, but I learned to code without it. I use it to go faster and learn more, not to think less. Every line goes through my brain before it ships.

I care about where technology goes and who it serves. If you're building something for the climate, for communities, or for the open web, let's talk.

🗣 French native  ·  English C1  ·  German B2  ·  Spanish B2

Formation
🎓

INSA Rennes — MSc Innovation & Entrepreneurship

Computer Science + double degree. 14 months building a startup from idea to investor pitch.

🇸🇪

Blekinge Institute of Technology, Sweden

Semester abroad — top 5 worldwide for Computer Science, pioneer in sustainable development.

Experiences
🌎

Sabbatical — Latin America

15 monthsTravelled solo across the continent. Kept contributing to NOÉ remotely.

🌿

NOÉ — Lead Developer

2020–todayMain developer. React, Node.js, MongoDB.

UNIVERS Qantum — Frontend Developer

2023–2024 ReactJS / Ruby on Rails interfaces for Qantum, a renewables software platform. Tackled technical debt, built new micro-frontends and improved existing interfaces.

🚲

Urbike — Full-stack Developer

2020–2022Innovative logistics cooperative in Brussels. Worked on Pédalo, a logistics management app for cargo-bikes. Ruby on Rails.

🏆

Orange-Nokia Challenge finalist

+ winner of the 48 Hours of Innovation in Rennes. LUMOS: low-tech, connected and modular public lighting.

🇻🇳

DAGOBA — Hồ Chí Minh City, Vietnam

International internship. Ruby on Rails, web scraping, database improvements.

🎭

Un Des Sens Festival — Artistic Director

30 volunteers, 25k€ budget. Drama, music, dance, magic, free activities.

Technology

My stack

Frontend — where I live
React TypeScript JavaScript HTML / CSS
Backend & data
Node.js MongoDB / Mongoose Ruby on Rails MySQL Python
Tools & workflow
GitLab / Git Docker / Compose N8N Linux
Also in my toolbox
InDesign Premiere Pro Photoshop LaTeX Java
Things that shaped me

A short shelf

Let's talk

Say hi.

Whether it's a project, a collaboration, a question about NOÉ, or just "your DJ name is a war crime" — I'm around.