My strongest expertise is mobile delivery with Flutter and Kotlin Multiplatform. I use FlutterFlow when speed is the priority, then structure the backend with Firebase or Supabase and the web layer with React or Next.js when needed.
A service offer built like a product
We turn your goals into concrete delivery: MVPs, productization, redesigns, or continuous improvement, with a clear roadmap and simple follow-through.
Fast framing
Clear decisions before we code.
Useful deliverables
Product, documentation, and roadmap ready to use.
Low-friction delivery
One point of contact, rapid iterations.
Services
Offer
I build iOS and Android products with a mobile-first mindset: performance, maintainability, execution quality and a clear long-term technical path.
Offer
When speed-to-market matters most, I use FlutterFlow as a front-end accelerator without losing product thinking or delivery quality.
Offer
I plug the right backend into the right product: Firebase for velocity in the mobile ecosystem, Supabase when relational modeling and SQL control become central.
Offer
I can also ship the web layer around the mobile product: marketing sites, dashboards or internal tools in FlutterFlow Web, React or Next.js with AI-assisted execution.
Offer
I also step in to clarify a stack, correct a technical trajectory or help a team get more out of Flutter, FlutterFlow, Firebase or Supabase.
Offer
I help companies integrate AI solutions (LLMs, RAG, autonomous agents) to automate business processes and create new intelligent services.
Positioning
I specialize in mobile product delivery with Flutter and Kotlin Multiplatform. Other technologies are selected with intent: FlutterFlow for frontend acceleration, Firebase or Supabase for backend architecture, and React or Next.js for the web layer.
Stack explained
Every stack choice answers a specific product constraint: speed, control, business complexity, SEO or cost of execution.
Mobile specialty
Build premium mobile apps when execution quality, animation control, product logic and maintainability matter most.
Advantages
Trade-offs
Mobile specialty
Share business logic between Android and iOS when a native mindset is important but duplication must be reduced.
Advantages
Trade-offs
Mobile accelerator
Accelerate an MVP, a V1 or business-facing interfaces when validation speed and product autonomy matter.
Advantages
Trade-offs
Infrastructure & data
Handle auth, realtime data, storage, notifications and analytics quickly in a mobile-friendly ecosystem.
Advantages
Trade-offs
Infrastructure & data
Rely on Postgres when relational structure, SQL control and openness of the stack are important.
Advantages
Trade-offs
Complementary web layer
Build acquisition sites, dashboards or complementary web interfaces around the mobile product with strong SEO and fast execution.
Advantages
Trade-offs
Pricing
Day rate for short missions, consulting or technical support.
Delivery of a complete mobile MVP, ready to test on the market.
Development of a V1 or scalable app, with roadmap support.
Tailored offer for specific needs, complex products or long-term support.
Projects
SaaS d'optimisation App Store et Play Store pour améliorer la visibilité, le trafic organique et les conversions des apps mobiles.
Use cases
Running coaching product with custom plans, training sessions, metrics and Strava integration.
Use cases
Personal development platform with structured learning paths, video progress tracking and interactive guidance tools.
Use cases
Member platform for Cluster Maritime Martinique with news, job board, directory and notifications.
Use cases
Squoad is a professional field service management platform for planning and tracking on-site operations.
Use cases
Personalized stories for children with interactive family experiences and shared reading flows.
Use cases
Testimonials
“Je suis particulièrement satisfait du travail réalisé par Julien pour le développement de l'application MTP - Running. Nous avons créé ensemble une belle application. Il a su allier compétences techniques et écoute, toujours disponible pour répondre à mes demandes et apporter des solutions efficaces. C'est une personne humaine, fiable et très professionnelle. Nous travaillons toujours ensemble aujourd'hui.”
Lilian
CEO MTP
Blog
Free tools
A mini-tool to quickly frame your app budget, plus direct access to our frontend and backend stack quizzes.
Conversion mini-tool
Indicative estimate
≈ 6,300 €
Indicative estimate for a custom mobile project, adjustable depending on your timeline, UX and integrations.
Choose your stack
Our quizzes help you choose between Flutter, FlutterFlow, KMP, Firebase or Supabase based on your real context.
Read next
Discuss a project
A focused 20-minute call to understand the challenge, frame the scope and outline a concrete action plan.