Freelancer profile translated to English.
Back to original languageAbout Adrien
I build reliable (no AI) user-centric apps.
Let's talk about your project.
An INSA Lyon engineer with experience in multiple production projects, I transform your ideas into high-performance, modern applications. A specialized mobile developer (Flutter, Swift, Kotlin, Flutterflow), I assist you in the rapid creation of useful, elegant, and user-centric products. I make little use of generative AI (autocompletion only). My experience allows me to provide quality work that ensures long-term product mastery.
I can be involved at all levels of your project:
- Preliminary study, scoping, prototyping, Figma UI mockups
- MVP
- Development of new features
- Native Swift/Kotlin or cross-platform Flutter/Flutterflow frontend
- Backend and microservices API (AWS, GCP, TS, Go, Python...)
- Databases (Firebase, Supabase, PostgreSQL) and object storage (S3)
- Operational management (Cloud build, AB testing, versioning, analytics...)
- Publication on Apple/Google Play stores
- Apple Watch/Android Wear application
I always start by understanding your value proposition and user needs to deliver solutions that matter.
Graduating from one of France's top engineering programs, I am autonomous, responsive, and attentive, and I deliver quickly and effectively.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Lyon (up to 10km)
Experience
- MABATIS - KeldateFlutter Mobile Developer - FrontendNovember 2025 - December 2025 (1 month)Mission to develop new features for a cross-platform Flutter mobile app.The client already had an initial version of Figma mockups for their new screens, which we challenged together. Once the UI was finalized, I developed the features while respecting the existing architecture:
- Strict separation of model, view, repositories, DTOs, services
- Discussion with the backend team to clarify new endpoints
A developer approved the pull request without changes: perfect integration.Mission renewed three times by the client. - Purplescreen
On Malt
Apple Watch Developer (SwiftUI) – Mobile CompanionSPORTSOctober 2025 - November 2025 (1 month)Lyon, FranceMission to develop anApple Watch(watchOS) application as a specializedSwiftUImobile developer, in close collaboration with the client.After a product scoping phase, I analyzed thebusiness needsanduser behaviorsto design an Apple Watch companion consistent with the existing mobile application. I proposed severalUI/UX mockups(Figma) to precisely align design, ergonomics, and the specific constraints of the Apple Watch (readability, short interactions, performance).I then ensured thecomplete developmentof the Apple Watch application in SwiftUI, including:- watchOS application architecture
- SwiftUI screens optimized for Apple Watch,
- communication with the Flutter mobile application,
- state and performance management.
At the end of the mission, I assisted the client with the publication and deployment process on the App Store, taking into account Apple's constraints for Apple Watch applications. - Teech GolfFlutter and Apple Watch Companion Mobile App DeveloperSPORTSMay 2025 - August 2025 (3 months)Lyon, FranceMission to develop aFlutter/Flutterflow mobile applicationfor the startup Teech Golf, with a strong focus onApple Watch(watchOS, SwiftUI) and backend.I designed and developed an on-course data entry mode using GPS (**Flutterflow Custom Widget**), allowing users to analyze their game in real-time: identifying risk areas, visualizing the impact of elevation changes, and aiding strategic decision-making directly from the Flutter mobile application.Subsequently, I designed a **modular NodeJS backend**, deployed on Google Cloud Platform (**GCP**), dedicated to calculating and aggregating relevant game statistics for golfers. I then evolved the Flutter frontend to integrate these statistics clearly and effectively, with a strong product goal: to facilitate user improvement.Finally, I developed an Apple Watch companion, enabling a complete round to be played without taking out the phone. This involved:
- Developing the Apple Watch application in SwiftUI,
- Implementing reliable communication between the iPhone and Apple Watch,
- Designing an intuitive, readable, and performant watchOS interface.
This mission allowed me to work across the entire product chain: Flutter mobile development, Apple Watch application, cloud backend, and user experience, within a dynamic and committed startup team.
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Education
- Computer Science EngineerINSA LyonFormation de haut niveau en conception, développement et pilotage de produits et systèmes informatiques. - Meilleure école d'ingénieurs post-bac en 2025, 2024, 2023, 2022... - Note maximale donnée au Département Informatique par la Commission des Titres d'Ingénieurs (CTI) -> parmi les meilleures formations informatiques de France