Freelancer profile translated to English.
Back to original languageAbout Alexandre
Looking for a React Native mobile developer?
Do you need a mobile app developer?
You are in the right place.
I am a developer with 14 years of experience. I design mobile applications.
I have worked in real estate, sports, and health.
I have collaborated with Dimo Software, Show You, and Mentaïa.
I cover the entire software cycle, from infrastructure to launch.
I am certified for the Innovation Tax Credit (CII).
Specifically, if you are an SME, you can recover 20% of the cost of my services as a tax credit on your innovation projects.
I can help you with:
- Designing a solution tailored to your needs
- Implementing a CI/CD pipeline (continuous integration and deployment)
- Applying best practices (Clean Code, TDD, etc.)
- Developing the React Native and Expo frontend
- Developing the backend in Java or .Net
- Deploying to production (AWS, Azure, VPS)
I have created two applications from scratch, by myself. From idea to launch, and then to monetization.
They are used by hundreds of users.
I prioritize. I remain pragmatic.
I iterate quickly to maximize user impact.
What I bring:
- Versatility and results
- A product-oriented approach, without sacrificing technical excellence
- Strategy and execution
Do you have a project?
Contact me, I respond within 1 hour.
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front end React Native, front-end React Native, expo, Android, iOS, mobile, apple store, google play, back end .Net, full-stack mobile, CII certified, innovation tax credit, react native expo, react native firebase, react native typescript, react native mobile, react native fullstack, react native android, react native ios, react native developer, react native javascript, react native senior, ios mobile application, ios developer, iOS developer, ios development, ios native, ios and android, ios senior, ios react native, ios development, Android developer, android ios, android developer, android senior, android, android react native.
French
Native or bilingual
English
Fluent
Can work on-site
Lyon (up to 50km), Paris (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km), Toulouse (up to 50km)
Experience
- MentaïaReact Native Mobile DeveloperSPORTSSeptember 2023 - December 2025 (2 years and 3 months)Lyon, FranceMentaïa is a French startup labeled Deeptech founded in 2024, specializing in the development of a mental preparation mobile application for amateur and professional athletes. It democratizes access to scientific tools to boost mental performance, based on research in cognitive sciences.The objective was to quickly develop a mobile application and its administration site and deploy it on the stores to test the idea with users.As a React Native mobile developer, I contributed to the following developments:- Migration of the Angular prototype to React Native and publication of the mobile application (iOS/Android) on the stores.- Development of the goal-setting feature, allowing athletes to manage the evolution of their performance.- Development of the learning path, enabling users to visualize their progress within the application.- Development of the statistics dashboard for visualizing the evolution of cognitive skills.- Development of the "Routine" feature, allowing athletes to create their routines from exercises.- Development of new mental preparation exercises (mental visualization, videos, games to work on concentration, etc.).- Implementation of the software factory (CI/CD)- Setup of the hosting infrastructure and monitoring on VPS.- Implementation of authentication with Keycloak.- Development of the administration site for creating mental preparation exercises.Results:- Go-live on the stores in 4 months.- Implementation of the software factory (CI/CD) for iOS, Android, and the web application.- Continuous delivery of key features.- Obtained Deeptech label and > €100k in funding.- Downloads x4 in 1 year.Technical context: React Native, Angular, .NET, GitHub Actions, Codemagic, Keycloak.
- DIMO SoftwareReact Native Mobile DeveloperAUTOMOBILEAugust 2014 - November 2019 (5 years and 3 months)Lyon, FranceDIMO Software is a French group, a publisher and integrator of SaaS software solutions for business management. It had over 320 employees and approximately 4,000 clients in 90 countries, with a turnover of €34.6 million.I joined a new department whose goal was to compete with startups by creating two software applications within the same SaaS platform, for small and medium-sized enterprises (SMEs): InOne for expense management, and Yourway for fleet management.I joined a team initially composed of 2 developers, 1 project manager, and 2 product managers, which quickly grew to 5 developers.As a React Native Mobile Developer, I contributed to the following achievements:- Development of a mobile application for managing expenses (InOne) and vehicle fleets (Yourway).- Creation of a connector between the platform and the artificial intelligence engine.- Development of new features on the artificial intelligence engine management portal (for expense reports).- Contribution to the software factory for the deployment and hot-fixing of the platform.- Setup of the software factory for automated deployment of the mobile application to the stores.Technical environment: React Native, Spring Boot, D3.js, Couchbase, ActiveMQ, Elasticsearch, Docker, automated tests (JUnit) and E2E (Protractor), Node.js, Google App Engine, Jenkins, Fastlane, Redux, Redux Sagas.
- Prosol (Grand Frais)Mobile and Web DeveloperRETAIL (LARGE RETAILERS)December 2025 - Today (8 months)Lyon, FranceProsol is a major player in the wholesale and retail of fresh produce for the Grand Frais, Fresh., and Boulangerie du Marché brands. The company achieved a turnover of 1.17 billion euros in 2023 and has around one hundred employees.I joined a new team created for the occasion, as part of an internal program encouraging employees to propose innovative application ideas.I participated in the development of a billing application for small farmers.The goal is to iterate quickly to validate the idea and its business value.The team consists of two developers and a project manager (the project initiator).As a web and mobile developer, I contribute to the following developments:- Development of a mobile application for invoice management- Development of an administration website for accountants- Setup and configuration of Azure infrastructure (2 App Services and 1 Container App)- Configuration of multi-tenant OpenID Connect authentication with Microsoft Entra ID- Automation of development environment deployment using Docker Compose- UI/UX improvementsSkills: Java, Spring, Angular, Azure cloud, Docker, OpenID Connect, Microsoft Entra ID, Github Actions, Scrum.
Recommendations
+3
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Education
- BTS, Informatique et réseauxEdouard Branly2011BTS, Informatique et réseaux
Certifications
- Master 2Groupe 42014