You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Julien NoelJN

Julien Noel

Mobile Developer / React Native / JS / TS / Kotlin

€350/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Julien

I help companies design, improve, and stabilize React Native mobile applications by solving concrete problems encountered in production.

I can intervene in particular on:

⚡ Performance Issues
Optimization of screen rendering, reduction of slowdowns, improvement of the overall fluidity of the application.

🔋 Excessive Battery Consumption
Analysis and optimization of processing, GPS, and rendering cycles to improve mobile autonomy.

🧩 Limitations of React Native Requiring Native Code
Development and integration of native Android modules in Kotlin for advanced functionalities not available in JavaScript.

📍 Complex Geolocation Features
Implementation of real-time GPS, position tracking, permission management, and accuracy optimization.

🗺️ Advanced Mapping Experiences
Integration of Mapbox for interactive, performant, and customized maps.

🎞️ Stuttering or Unsmooth Animations
Creation of fluid animations and transitions with React Native Reanimated to improve user experience.

🔍 Code Quality and Maintainability
Participation in code reviews, improvement of code readability, stability, and scalability.
  • French

    Native or bilingual

  • English

    Fluent

  • Thai

    Basic

Remote only
Primarily works remotely

Experience

  • Obvious technologies
    React Native Developer
    PUBLIC SAFETY
    April 2023 - Today (3 years and 2 months)
    Nanterre, France
    Developing a security React Native app
    - Mapbox / maplibre integration
    - Optimized application rendering performance
    - Improved battery efficiency
    - Developed and integrated native modules in Kotlin for advanced Android functionality
    - Implemented GPS features and real-time geolocation tracking
    - Integrated Mapbox for interactive map experiences
    - Created smooth animations and transitions using React Native Reanimated
    - Code Reviews
    Typescript Redux Toolkit React Native Mapbox React Native Reanimated
  • Herlea btp
    Showcase Website Development
    CIVIL ENGINEERING
    January 2023 - January 2023 (1 month)
    Levallois-Perret, France
    Creation of a showcase website for a construction/renovation company Herlea-btp.fr to highlight their showroom and gain visibility.
    JavaScript GatsbyJS Netlify Web Development
  • Julien Noel
    React Native Note-Taking App
    DIGITAL AND IT
    November 2022 - January 2023 (3 months)
    Paris, France
    I developed a note-taking application with the ability to add audio and images. To save users and data, I used Firebase.
    React Native Expo Firebase

Recommendations

Be the first to recommend Julien

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • RNCP Level 6 Title: Project Manager in Web and Mobile Application Development
    La Capsule
    2022
    Coding Bootcamp de 10 semaines - Développeur web et mobile Fullstack JavaScript Conception et prototypage d’applications web et mobile Programmation Front-end : HTML 5 / CSS / JavaScript / React / Redux Programmation Back-end : Node.JS / Express Base de données : Mongo DB Workflow : Git / Github

Skill set

Categories