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Emilien ChampionEC

Emilien Champion

Senior Mobile Engineer iOS/Android

€450/day
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Emilien

Emilien, a mobile developer, I design native applications for both Android and iOS using native SDKs.

I had the privilege of training in one of the last promotions of the Professional License IEM specializing in mobile application development. I was able to interact with qualified and experienced professionals in this field.

With 6 years of experience, I have developed applications from scratch that today generate over €40 million in revenue.

On the Android side, I have had the opportunity to develop in Java and Kotlin.
My development stack is modern:
- Retrofit
- Coroutines
- Flow,
- Hilt
- Jetpack Compose
- Test (Turbine, Kotest)

On the iOS side, my training provided me with knowledge of UIKit, but I have almost exclusively developed applications with SwiftUI (since iOS 13)
- SwiftUI
- Combine

In terms of soft skills, I would describe myself as very open, approachable, and adaptable to any type of situation or team.
  • French

    Native or bilingual

  • English

    Fluent

  • German

    Basic

Remote only
Primarily works remotely

Experience

  • LR TECHNOLOGIES
    Mobile Developer
    SOFTWARE PUBLISHING
    April 2026 - Today (2 months)
    Lyon, France
    Mobile development consultant, I support clients in the realization of their mobile projects

    - SDK Update
    - Accessibility Update
    - Consulting

    - Development of applications from A to Z, from scratch.
    - Feature development from A to Z.

    I assist clients with design, challenges, implementation, testing, deployment, and production monitoring.
    Operational maintenance
    Android Studio Android Kotlin Jetpack Compose SwiftUI
  • WIMOVA FRANCE
    Android/iOS Mobile Developer
    TRANSPORTATION
    May 2020 - April 2026 (5 years and 11 months)
    Villeurbanne, France
    I had the pleasure of participating in the development of the MEWI Driver application, working on key features even as an intern.
    I was able to learn very quickly and was entrusted with responsibilities.

    On a rather outdated tech stack, I tried to mature it to modernize it.
    Geolocation Notifications Kotlin Redesign Java

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Education

  • Professional License - Computer Science and Mobility, Computer Science
    IUT Lyon 1
    2021
    Licence Professionnelle - Informatique et Mobilité, Informatique
  • DUT, Computer Science
    IUT Lyon 1
    2020
    DUT, Informatique

Skill set

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