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Remi G.RG

Remi G.

Fullstack JS Developer | React Native & Node.js

€420/day
Marseille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Remi

Looking to launch a robust, scalable, and production-ready web or mobile application without wasting time?

As a JS Fullstack specialist (React Native & Node.js), I help startups and companies build high-performing digital products. Notably, I developed and maintained an application with over 16,000 active users, ensuring top-tier stability and user experience.

🚀 What I bring to your project:
  • End-to-End Mobile Development: Creating fluid iOS & Android apps with React Native & Expo.
  • Backend & API: Designing robust servers (Node.js, NestJS) and managing databases (PostgreSQL, MongoDB).
  • Payments & Subscriptions: Full integration of Stripe (in-app purchases, subscriptions).
  • Production Deployment: Complete management of App Store and Google Play deployment (including review).
  • Maintenance & Evolution: Performance optimization and bug fixing for existing apps.

💡 Why work with me?

  • 360° Vision: I master the entire chain, from the pixel on the screen to the data in the database.
  • Clean & Scalable Code: Using TypeScript and best practices for an easily maintainable project.
  • Autonomy & Results: I don't just code; I ensure your product meets your business objectives.

🛠️ My Tech Stack:

Frontend: React Native, Expo, Next.js, TypeScript.

Backend: Node.js, NestJS, Express, Prisma.

Infrastructure: Firebase, Supabase, Docker, CI/CD.

Let's discuss your project! I usually respond within an hour to discuss your needs and define the best strategy for your MVP or full application together.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

Can work on-site
Marseille (up to 50km), Lyon (up to 50km), Aix-en-Provence (up to 10km), Toulon (up to 10km)

Experience

  • Formly
    Full-Stack Developer
    EDUCATION AND E-LEARNING
    January 2026 - March 2026 (2 months)
    Paris, France
    Worked as a Full-Stack Developer on Formly, an online training platform, with responsibilities covering mobile, web, and backend.

    Mobile (React Native):
    Developed gamification features to enhance learner engagement. Integrated Stripe payment system and Apple In-App Purchases (IAP). Implemented push notifications via Firebase and social authentication (Apple, Google, Facebook).

    Backend (Express / Fastify):
    Designed and developed payment and login routes with Stripe. Set up an automatic trainer certification system with PDF generation. Implemented authentication and managed various login providers.

    Web:
    Developed the same features as on mobile (gamification, payment, authentication). Maintained and optimized the training suggestion algorithm. Designed the user onboarding flow.

    Stack: React Native, Expo, NextJS, Express.js, Fastify, Stripe, Firebase, Apple IAP, TypeScript
    React Native Expo Firebase Next.js Express
  • Elya Maje
    JS Full-Stack Developer
    FASHION AND COSMETICS
    January 2024 - March 2026 (2 years and 2 months)
    Marseille, France
    At MPEL DIGITAL (ELYAMAJE), I designed and developed high-performance software solutions from end to end, ranging from mobile to web. Notably, I developed a cross-platform mobile application in production with over 16,000 users, as well as a tablet application for event management POS.

    Architecturally, I implemented a robust shared backend using Node.js and Express.js. I also developed and deployed a WebApp in Next.js 14 with the App Router, accompanied by a comprehensive React admin dashboard. Concurrently, I designed a student management application integrating Next.js, NestJS, Prisma, and Better Auth. Finally, I handled environment containerization using Docker and set up CI/CD pipelines with GitHub Actions to ensure smooth and secure deployments.
    React Native Next.js Express NestJs TypeScript
  • NOJYK
    Front-End Developer
    RESTAURANTS AND FOOD SERVICE
    October 2023 - December 2023 (2 months)
    Marseille, France
    During my experience at NOJYK, I was involved in developing new front-end features using React and TypeScript. My role consisted of designing interactive and high-performance user interfaces while ensuring an optimal user experience.

    I undertook significant work in refactoring and modernizing the existing codebase, which improved the overall maintainability and performance of the application. This assignment also involved close collaboration with the backend team to define and integrate API specifications, ensuring smooth communication between the client and server.
    React.js TypeScript Next.js

Recommendations

Emilie FornerisEF
Aboubacar D.AD
Emilie Forneris and 1 other person have recommended Remi

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Education

  • Nest.js Complete Developer Program
    Nest js Complete Developer Program
  • Full-Stack JavaScript Developer, Tech
    La Capsule
    2023
    Developpeur Javascript Full-Stack, Tech

Skill set

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