I build custom web & mobile apps that drive real results for your business.
Since 2004, I've helped startups and growing businesses ship SaaS platforms, CRMs and mobile apps that automate workflows and accelerate growth.
What clients say
Client reviews – 5/5 on Malt
"We hired Xavier to build a mobile app for our real estate inspection business. The final product is polished, modern, and fits our workflow perfectly – delivered right on schedule. Highly recommend working with him!"
M.A & EXPERTISE via Malt — 5/5
"Xavier built our SaaS from the ground up and the result blew us away. It's smooth, intuitive, and has everything we needed. What really stood out was his vision for the product – he didn't just build what we asked for, he made it better. We couldn't have done this without him."
MaiDay SaaS via Malt — 5/5
About me
Senior Fullstack Developer
I turn ideas into production-ready digital products, from first prototype to launch day.
What I bring: A reliable, scalable product built around your users – with clear communication and fast turnaround every step of the way.
Xavier
Senior Freelance · France / 100% Remote
- 19 years in web development – agency & freelance
- JavaScript expert: React, Next.js, Node, NestJS, TypeScript
- Full-stack: frontend, backend, APIs, databases
- Business apps: CRMs, SaaS platforms, internal tools
- Mobile: React Native & Expo for iOS and Android
- Focus on performance, clean code and polished UI
Selected work
Recent projects
+42% field team efficiency
Schmidt
Internal platform for managing inventory, orders and customers across multiple retail stores.
React · Vite · TypeScript · Tailwind · NoSQL
-30% processing time
M.A Expertise
Mobile app for a property inspection company – manage cases, clients and schedules on the go.
React Native · Next.js · Node · PostgreSQL · NoSQL
+20% team productivity
LB Invest
Custom CRM for a 50-person company to track orders, inventory and customer relationships.
Next.js · Node · PostgreSQL · NoSQL
+150% monthly growth
MaiDay SaaS
Property management platform for vacation rental concierge services.
React · Next.js · Node · PostgreSQL · NoSQL
+150% monthly growth
MaiDay Mobile
Marketplace app connecting vacation rental owners with local cleaning providers.
React Native · Next.js · Node · PostgreSQL · NoSQL
+500 signups/month
Buchéo
Consumer app for tracking firewood inventory and optimizing heating costs.
React Native · Next.js · Node · PostgreSQL · NoSQL
Tech stack
Fast, scalable apps built for real users.
01
Web Apps & SaaS
Next.js, React 19, Firebase, Prisma, state machines.
02
Mobile
React Native, Expo, shared UI components, Lottie animations.
03
Back-end
Node.js, REST & GraphQL APIs, tRPC, Firebase Auth.
04
DevOps & Infra
Vercel, CI/CD pipelines, monitoring, edge caching.
05
UI/UX & Motion
Clean design, micro-interactions, smooth scroll animations.
Let's talk
Ready to build something great?
Have a SaaS, CRM or mobile app in mind? Let's discuss your goals, timeline and scope. I keep things simple – clear process, no surprises.