Freelancer profile translated to English.
Back to original languageAbout Adrien
React Native Developer, I design reliable, fluid, and launch-ready mobile applications for iOS and Android.
I support startups, entrepreneurs, and project owners in creating mobile applications, from initial scoping to app store launch.
Thanks to international experience, I can adapt to various contexts and collaborate clearly, structurally, and effectively. My goal: to help you transform your idea into a concrete, intuitive, and useful application for your users.
What I can offer you:
- Mobile application development with React Native
- Technical scoping and priority definition
- Clear project tracking with Notion
- Publication on the App Store and Google Play
- Support in product evolution
My way of working:
1. Analysis of your needs and definition of an action plan
2. Validation of scope, timeline, and priorities
3. Development with regular progress updates
4. Testing, delivery, and production launch on iOS and Android
I place great importance on communication, deliverable reliability, and user experience quality. I work on MVPs as well as evolving applications.
Some projects I've worked on:
- **Blucerchiati**: Mobile application for Sampdoria fans
- **ÜTI**: Financial marketplace for investors and fund managers
- **Sport Mates**: Connection application for sports practice
- **Unlock Performance**: Mobile application for sports psychology
Do you have a mobile application project?
Send me a message with your needs, and I will quickly respond with initial concrete feedback.
French
Native or bilingual
English
Native or bilingual
Spanish
Native or bilingual
Can work on-site
Paris (up to 50km), Bordeaux (up to 50km)
Experience
- BlucerchiatiReact Native & Next.js Developer for Mobile and Web AppENTERTAINMENT AND LEISUREJuly 2023 - November 2023 (5 months)ItalyBlucerchiati — Community mobile application for Sampdoria fansI collaborated with the startup Blucerchiati on the development of a mobile application designed to unite and engage a community of Sampdoria supporters.The project aimed to offer an engaging, fluid, and scalable experience, with a strong focus on product communication, rapid iteration, and user engagement.My main contributions:
- Development of a complete authentication system with multiple login options: Apple, Google, Facebook, and email/password
- Implementation of an interactive onboarding to improve the welcome and activation of new users
- Design of engagement features such as quizzes, polls, and reward mechanics
- Development of a real-time news section with content retrieval via RSS and Firebase backend
- Creation of an account section for managing profiles, settings, badges, and user tasks
- Integration of a real-time Firebase database to ensure data synchronization within the application
- Implementation of activity tracking and analytics to measure user engagement and product performance
- Development of an administration panel to manage content, users, and reporting
- Implementation of push and in-app notifications to enhance retention and interaction
- Participation in the deployment of the application on iOS and Android
Technologies / environment:React Native, Firebase, RSS, push notifications, App Store / Google Play deployment - Unlock performanceCTOHEALTH AND WELLNESSJanuary 2023 - Today (3 years and 5 months)Londres, United KingdomUnlock Performance — CTO / Technical Lead for a mental coaching app for athletesI am involved with Unlock Performance as CTO, tasked with leading the technical development of a mobile application dedicated to digitizing mental coaching for athletes.The project's objective is to make personalized support accessible to improve performance, concentration, and sports resilience through an engaging and structured mobile experience.My main contributions:
- Definition of the platform's technical architecture: React Native / Expo for mobile, Supabase / PostgreSQL for the backend, and React + Vite for the back-office
- Design of interactive mental coaching journeys integrating videos, practical exercises, and personalized habits
- Development of a modular program system to structure sessions, chapters, exercises, and progression routines
- Implementation of advanced analytics tracking with Amplitude and Supabase Edge Functions to measure athlete engagement and progress
- Integration of intelligent notifications with OneSignal to encourage regularity and limit inactivity
- Supervision of technical stability with Sentry and Supabase monitoring tools
- Close collaboration with sports psychology experts to transform their methodology into a clear, useful, and motivating digital experience
- Consideration of security and GDPR compliance issues related to user data
- Mentoring the technical team and coordinating with product, design, and coaching teams
Technologies / environment:React Native, Expo, Supabase, PostgreSQL, React, Vite, Amplitude, OneSignal, Sentry - ÜTIFull-stack DeveloperCONSULTING AND AUDITSDecember 2022 - September 2023 (9 months)Geneva, SwitzerlandÜTI — Development of a mobile and web application with marketplace featuresI collaborated with the startup ÜTI on the development of an application available on mobile and web, with a strong marketplace component and several user-experience-focused features.The project required designing a fluid, reliable, and scalable platform, integrating authentication, real-time messaging, geolocation, profile management, and administration tools.My main contributions:
- Development of authentication, onboarding, and profile management features on both mobile and web versions
- Implementation of real-time messaging via CometChat
- Development of an integrated marketplace with navigation, search, and product interaction
- Creation of a favorites system allowing users to save and organize products
- Integration of Google Maps for geolocation features, considering privacy constraints and platform-specific standards
- Collaboration with the backend team to ensure reliable integration with Firebase Firestore, Firebase Auth, and other technical services
- Implementation of error tracking and stability monitoring via Google Crashlytics
- Participation in the development of the administration panel for managing users, products, and content
- Optimization of application performance in terms of speed, reliability, and scalability
- Consideration of legal compliance issues, particularly GDPR
- Integration of multilingual functionality for French and English-speaking users
Technologies / environment:React Native, Expo, Next.js, TypeScript, Firebase, Firestore, Firebase Auth, CometChat, Google Maps, Crashlytics
Reviews
C
Cécile
Adriver
Reviewed on 1/29/2024
Adrien quickly took charge of our mobile application and perfectly fulfilled the mission we entrusted to him. His technical skills allowed him to meet our needs within the agreed timeframe. He was committed to understanding and resolving some more complex issues that arose. Adrien was also very available for necessary progress updates. I would hire him again for future missions.
Pierre
SASU Edition Marie Louise
Reviewed on 12/19/2023
We had a phone consulting session with Adrien. The discussions were very interesting.
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Education
- Computer Software Engineering42 The Network2022Computer Software Engineering
- Computer Software Engineering192021Computer Software Engineering