Freelancer profile translated to English.

Description

Hello!

Expert React Native & Node.js with 5 years of experience in the corporate world, I help startups and companies design, launch, and improve their iOS and Android mobile applications.

I work on:

React Native application development
Node.js APIs and backends
Technical architecture
Performance and stability
Product maintenance and evolution

I am used to working on production products with real business stakes: user experience, speed of execution, code quality, and scalability.

What my clients usually look for:

launching an app quickly
improving an existing app
fixing performance issues
adding new features
structuring clean and maintainable technical foundations

Main Stack:

React Native, TypeScript, Node.js, Express, PostgreSQL, Firebase, REST APIs, Git, CI/CD.

I can assist with:

team augmentation
full autonomy
MVP development
long-term missions

Available for remote or hybrid missions.

Languages

French
Native or bilingual
English
Native or bilingual
Dutch
Conversational
Spanish
Conversational

Workplace preferences

Remote only

Primarily works remotely

RNTX
React Native & Backend Developer
SPORTS
March 2026 - Today (3 months)
Development of RNTX, a mobile application focused on running and sports performance.

I am responsible for the technical architecture, mobile and backend development, as well as product evolution.
Development of the React Native iOS/Android application
Node.js backend architecture
Authentication and APIs
Activity/performance tracking
Push notifications
Design system and mobile UX
Deployment and CI/CD

Stack:
React Native, Expo, TypeScript, Node.js, PostgreSQL, Mongo, Redis
Node.js React Native MongoDB Redis PostgreSQL
YuviTal
Mobile Developer
June 2021 - February 2026 (4 years and 8 months)
Developed and maintained 8 mobile applications across iOS and Android platforms, delivering user-centric features and ensuring consistent performance and functionality.
Implemented full-stack solutions, leveraging Node.js for backend development and React Native for mobile frontend, focusing on responsive, scalable, high-performance design.
Optimized database queries and managed data storage solutions using MongoDB, PostgreSQL, Redis, and Snowflake, achieving efficient data handling and retrieval.
Tested new features in collaboration with the QA team, and employed Detox and Jest for e2e testing and rigorous unit testing, elevating code reliability and minimizing production issues.
Authored comprehensive documentation to support ongoing development, ease onboarding for new team members, and provide clarity on project features and processes.
Conducted code reviews to ensure code quality, consistency, and adherence to best practices, providing constructive feedback to enhance team collaboration and continuous improvement.
Collaborated closely with other R&D and Product team members to plan, model and develop robust end-to-end features in a timely manner.
Deployed applications on cloud platforms (Render/Heroku/Vercel), ensuring high availability and scalability of applications.
Node.js React Native TypeScript Mobile Application