You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Malt Strategy
New report
Malt Tech Trends 2026
Louis GautierLG

Louis Gautier

Supermalter

Kotlin Android Developer Expert

€600/day
7 projects
Paris, FR
8-15 years
Android
Kotlin
KMM
Jetpack Compose
Android Development

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Louis

SeniorAndroid Engineer specialized in Kotlin & Jetpack Compose**, I help companies in the **design**, **development**, and **validationofperformantandscalable**mobile applications**.

I work on bothfrom scratch projects (MVP)and **production applications with high traffic**, with a strong focus on:

*Code quality

*Stability

*Long-termmaintainability
  • Applicationperformance

What I concretely bring to my clients


*Robust**, **testedapplications ready for scaling
  • **Crash reduction**, technical debt, and maintenance time
  • Implementation ofClean / MVVM / MVIarchitectures
  • Refactoring of legacy code and continuous improvement
  • Integration of AI tools to boost productivity
  • Smooth delivery viaCI/CD
  • Work in anAgile / Scrumenvironment

Stack & expertise


*Kotlin, Jetpack Compose, Android SDK

*Kotlin Multiplatform(KMP / KMM)

*Coroutines**, **Flow**, **Room**, **Retrofit

*Unit & UI Tests(JUnit, MockK, Espresso)
  • **Git**, **CI/CD**, AI Tools, Firebase, Play Store

Work Method

Autonomous, results-oriented, and clear communication
I easily integrate into an existing team (product, design, backend) and can also act as atechnical lead or Android referent

📍 Based in Paris. Available full remote
🗣️ French / English
⏱️ Highly responsive, quick adaptation to project needs

👉 Feel free to contact me to discuss your project, a technical audit, or your Android support needs
Banking and Financial Services
Press and Media
Software Publishing

  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Toulouse (up to 50km)

Experience

  • ERNST & YOUNG ADVISORY - France Travail
    Malt logoOn Malt
    Android Kotlin Developer – Mobile Application
    CONSULTING AND AUDITS
    October 2025 - November 2025
    Paris, France
    Development of two Android mobile applications for France Travail as part of training for the hotel industry professions.

    100% development with Jetpack Compose

    Very short development times (5 weeks for two applications)

    Writing business tests for candidate score calculation

    Generation of PDF files from composables (mastery of Compose lifecycle)

    Implementation of an image click detection system to dynamically identify error zones by comparing with a reference bitmap
    Android Kotlin Jetpack Compose Git Figma
  • Les Échos
    Android Kotlin Developer – Mobile Application
    PRESS AND MEDIA
    September 2023 - April 2024 (7 months)
    Paris, France
    • Internalization of the Les Echos Android application
    • Development of core modules for a Kotlin Multiplatform Mobile (KMP) library.
    • Improvement of application stability (crash rate -10%) and startup time (-1s) through refactoring and technical debt reduction.
    • Implementation of new subscription flows and in-app purchase systems.
    • Work in agile squads with weekly sprints and code reviews.
    • Qualification of new profiles for the creation of a mobile team
    Kotlin Mobile Development Android KMP Agile Methodology
  • Bankin'
    Android Kotlin Developer – Mobile Application
    BANKING AND INSURANCE
    January 2023 - August 2023 (7 months)
    Paris, France
    • Delivery of the 'Cashback' feature.
    • Migration to MVVM architecture.
    • Significant reduction in crashes by replacing an obsolete dependency injection.
    • Collaboration with product managers and QA in agile cycles.
    • Qualification of new profiles for the creation of a mobile team
    Agile Methodology Android Kotlin Jetpack Compose Git
Check out Louis's experience

Reviews

5.0

Out of 2 ratings

J

Jeremie

développeur Android / kotlin - ERNST & YOUNG ADVISORY - Business Consulting

Reviewed on 12/1/2025

Louis worked on an Android app development with a tight deadline. He quickly grasped the functional requirements and delivered regularly. Super smooth communication, very responsive during reviews! The final deadline was met, largely thanks to his work and commitment.
N

Nicolas

Nicolas Mondollot (Indépendant)

Reviewed on 12/8/2022

The mission went very well! Louis was very professional and delivered a quality app on time. Communication via email and video call went smoothly. I am very satisfied with this mission.

Recommendations

FU
Valentin DenisVD
Former user and 1 other person have recommended Louis

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

Signup to reveal

Education

  • Master in Digital Project Design & Development
    IMIE NANTES
    2019
  • Kotlin
    Kotlin
    2020
    Kotlin

Certifications

  • Kotlin Android Developer
    Kotlin Android Developer
    2020
    Kotlin Android Developer Kotlin

Skill set

Mobile Development
Mobile Application
Git
KMP
Android SDK
Android Studio
Koin
Firebase
Retrofit
CI/CD
Google Play Store
MVVM
Clean Architecture
API
Coroutines
Agile Methodology
Scrum
In-App Purchase
SQLite
Figma
Project Management
Needs Analysis
Project Study
Requirements Analysis
External API integration
Mobile App Deployment
Software Architecture
Testing and Quality Assurance
Performance Optimization
CI/CD Management
Agile Project Management
IT Project Management
Kotlin Multiplatform
Compose Multiplatform
Unit Testing
REST APIs
JUnit
XML
Geolocation
Continuous Improvement
Maintenance
TDD
Clean Code
Material UI
User Experience Design

Categories