Introduction
About Guillaume Ojardias, web & mobile developer in Lyon
Hi, I’m Guillaume Ojardias, a freelance web and mobile developer based in Lyon. In the Lyon area, I’m happy to come to your offices to talk things through in person; anywhere else in France, I work remotely. I help SMEs and non-profits bring their web & mobile projects to life: showcase websites, online booking, business applications, or consumer mobile apps.
From Sketchfab and Epic Games to your project
Before going freelance, I was a backend developer at Sketchfab, a French platform acquired by Epic Games (the creators of Fortnite and Unreal Engine). Among other things, I contributed to FAB, their 3D content marketplace used by creators worldwide.
What this means for you: your project, however modest, is built to the same standards of quality, performance and rigor as a platform running at massive scale. You get the benefit of that exacting standard without the overhead that usually comes with it.
Fusily: an app I run end to end
Since late 2024, I’ve been designing and building Fusily, a recipe and meal-planning app, single-handedly and on every front: backend, frontend, mobile app, deployment and content.
This isn’t just a side project: it’s living proof that I can steer a complete web and mobile project, from idea to app store. When you tell me about your project, I know exactly what it involves — because I’m going through those very same steps myself.
How I work
Everything starts before the first line of code: with understanding your business, your needs and your users. A good project doesn’t begin with technology, but with the right questions.
Then I explain things as clearly as possible, without drowning you in technical jargon. You don’t need to know what an API is to understand where your budget goes and why. My job is to translate your goals into concrete solutions and to keep you informed at every step.
The idea: that you move forward with peace of mind, always knowing where you stand. You’ll find the details of what I offer on my services page.
Support that doesn’t stop at launch
A website or an app is a living thing. Once your project is online, I stay available for maintenance, handling the unexpected, and future improvements. You’re not left to fend for yourself on launch day: we build a lasting relationship, so your tool grows alongside your business.
The technologies I use
I build with a set of tools proven on demanding projects:
- Backend: Python, Django, Django REST Framework, PostgreSQL
- Frontend: React, Next.js, TypeScript
- Mobile: React Native, Expo (iOS and Android apps from a single codebase)
These choices deliver projects that are reliable, maintainable over time, and able to evolve with your needs. You can see these technologies in action in my work.
Let’s talk about your project
Whether you have a clear idea or just a hunch to explore, the first step is always the same: a free, no-obligation conversation to understand what you need. I’ll get back to you within 24 hours.
Get in touchExperience
My background
Founder & Full-Stack Developper— Fusily · Sep 2024 → present
Fusily is a mobile app (iOS and Android) that simplifies creating and sharing recipes as well as meal planning, while reducing food waste. I designed, built and shipped the product end-to-end, on my own:
- React Native / Expo mobile app, published on the App Store and Google Play
- Django / DRF backend with a PostgreSQL database: user accounts, recipes, meal planning, shopping lists
- Delivery pipeline: EAS builds, OTA updates, versioning strategy aligned with native runtimes
- Brand identity and UI design, multilingual store screenshots
- Content and marketing: website, social media (Reels), content-production automation
Fusily is also my real-world lab: every product, technical and design decision is mine — the same level of care I bring to my clients’ projects.
Python Backend Developer— Medsmart · Jul 2024 → Sep 2024
Backend development (Python / Django) for the claims-transmission system between health insurers and alternative-medicine practitioners (osteopaths, hypnotherapists, etc.):
- Integration of a system to handle insurers sharing the same AMC number
- Updates and bug fixes on the practice-management tool
Python Backend Developer— Epic Games (FAB) · Jul 2021 → Feb 2024
After Epic Games acquired Sketchfab, contributed to building FAB, Epic Games’ unified asset marketplace for creators (merging the Sketchfab, Unreal Marketplace and Quixel catalogs), ahead of its launch.
- Python / Django / DRF backend development
- Work on very large-scale migration and integration challenges (catalogs of millions of assets)
- Collaboration with internationally distributed teams, in English
Python Backend Developer— Sketchfab · May 2021 → Feb 2024
Development of Sketchfab’s Django / DRF backend, the collaborative platform to publish and view 3D models, used by millions of creators.
- Design and evolution of REST APIs (DRF) at the core of the product
- Work on a high-traffic Python application: performance, reliability, quality (tests, code reviews)
- Collaboration within an international team, in English
Sketchfab was acquired by Epic Games in July 2021.
Python Backend Developer— Mergify · Aug 2020 → Feb 2021
At this startup specialized in GitHub workflow automation, I joined a small team made up of the two founders. This internship gave me direct mentorship and a full immersion in developing a SaaS product used by thousands of developers.
- Design and deployment of a referral program
- Product maintenance and optimization
- Improvement of the technical documentation
A formative experience, combining intensive practice and knowledge transfer from experienced founders. Ideal for consolidating my development skills and understanding the stakes of a B2B technical product.