We build things
worth using.
Products crafted end to end — architecture, backend, mobile, and every detail in between.
Products
Rovii
Turn driving into an experience. Set a duration — Rovii builds a real loop route from your location and guides you through it. No destination. Just the road.
rovii.app →More products in the works.
The studio
Housedevinci is an independent product studio — currently one engineer, one product, one direction. The goal is simple: build things that are genuinely worth someone's time.
The foundation is backend engineering. Deep in Java and Kotlin, building systems on Spring Boot that handle load quietly and fail gracefully. PostgreSQL for the data, Docker for the infrastructure, clean REST API design as a discipline.
The mobile side came later and stayed. Flutter — because it's the only framework where you can build a genuinely beautiful experience without fighting the tool. Full control over every animation, every transition, iOS and Android from one codebase.
The product instinct runs through everything. What's the real problem? What's the MVP? What can wait? The work starts from the user, not the technology.
Based in Paris. Building independently.
Backend
Java 21 · Kotlin · Spring Boot 3 · PostgreSQL · JPA · REST API design
Mobile
Flutter · Dart · iOS · Android · Custom UI · Mapbox · Location
Infrastructure
Docker · CI/CD · Railway · GitHub Actions · Git
Product
System architecture · UX thinking · MVP scoping · End-to-end delivery