Louis Gautier

Expert Développeur Kotlin Android

Salaire / Taux journalier

Paris, France

Freelance

À distance uniquement

Expertises

KotlinAndroidClean ArchitectureGitPostmanBitbucketFirebaseJiraSQLiteRESTful APIsGitHubA/B testingGitLabGradleConfluenceScrum

Langues

Français (Maternelle)Anglais

À propos

Introduction

Ingénieur Android Senior spécialisé en Kotlin et Jetpack Compose, j’accompagne les entreprises sur des apps mobiles performantes et scalables, du MVP aux apps à fort trafic. Expert en qualité, stabilité et maintenabilité, j’interviens sur l’architecture, le refactoring, les tests, la CI/CD et l’intégration d’outils IA. Autonome, agile, possible en lead technique. Basé à Paris, full remote, FR/EN.

Liens

Expérience de travail

Senior Android Developer

mars 2022 - Présent

4 ans 8 mois

I support my clients with a variety of needs, from recruiting Android talent and auditing existing codebases to setting up efficient GitFlow and deployment processes. I also contribute directly to the development of key features and work to promote Android best practices within teams, helping to elevate their overall expertise and cohesion.

Senior Android Engineer

Ernst & Young Global Consulting ServicesFreelance

oct. 2025 - déc. 2025

3 mois

Paris, France

Development of two mobile applications for France Travail as part of a training program for hospitality industry roles. Very tight delivery timeline (5 weeks for two applications) 100% built with Jetpack Compose Implementation of business logic tests for candidate scoring PDF generation directly from a composable (advanced control of the Compose lifecycle) Implementation of an image click-detection system to dynamically identify error zones through bitmap comparison

Senior Android Developer

Les EchosFreelance

oct. 2023 - mai 2024

8 mois

Paris et périphérie

I’ve been actively involved in the development of premium features including in-app purchases, while also setting up robust CI/CD infrastructure and integrating Jetpack Compose and Kotlin Multiplatform into production environments. My role has extended to supporting Android recruitment efforts and shaping team growth. I worked primarily with Kotlin with some Java code (legacy only).

Senior Android Developer

Bankin'​Freelance

janv. 2023 - oct. 2023

10 mois

Paris et périphérie

I implemented a new Cashback feature, contributed significantly to reducing technical debt, and played an active role in recruiting Android developers. I was also responsible for deploying new app versions to the Play Store. A key part of my work involved migrating the database (Realm to Room), move from Dagger to Koin, and restructuring the overall architecture (MVI/MVP/Other to MVVM) to improve maintainability and scalability.

Android Developer

BoolderFreelance

nov. 2022 - déc. 2022

2 mois

Paris et périphérie

As my first freelance project, I independently designed and developed a brand-new Android application from scratch to assist climbers in Fontainebleau (area near Paris). Working entirely solo, I established a solid technical foundation (Clean Architecture, MVVM, Unit test), created custom vector illustrations with Path, integrated the Mapbox SDK with multiple personalized layers, and implemented Algolia Instant Search for a fast and intuitive user experience.

Android Developer

LydiaFreelance

mars 2022 - août 2022

6 mois

Paris et périphérie

I contributed to the implementation of a design pattern to enhance code consistency and maintainability, and developed a new Investment feature focused on cryptocurrencies. I also delivered several quick wins by improving existing features to boost performance and user experience. The project was built using Kotlin and Java, within an Agile framework organized around squad-based sprints.

Junior Android Developer

Daxium

avr. 2019 - mars 2022

3 ans

Nantes, France

I joined the team to help them to develop a brand-new Android application from scratch, establishing a sustainable technical foundation based on Clean Architecture and MVVM and relies on a huge test coverage (Unit test, integration test, UI test). My responsibilities included designing and implementing the database layer with Room, managing multilingual support, and defining comprehensive test plans covering unit and end-to-end scenarios. I also designed and integrated the first KMM components to support cross-platform development. The project leveraged a modern stack including Kotlin, Koin, Coroutines, DataBinding, Retrofit, and was delivered within an Agile, team-based sprint framework.

Junior Android Developer

Gfi Informatique

févr. 2019 - mars 2019

2 mois

Région de Nantes, France

Junior Android Developer

Transway

mai 2017 - janv. 2019

1 an 9 mois

Région de Nantes, France

I contributed to the integration of a gamification platform and implemented a user profile system including login and statistics tracking. I also worked on reducing technical debt and led the redesign of several key screens to improve usability and maintainability.


Formation

IMIE

Master's degree

2016 - 2018

2 ans 1 mois

Conservatoire National des Arts et Métiers

Software Engineer

2015 - 2016

1 an 1 mois

Saint Jean Baptiste de la Salle

Baccalauréat Professionnel

2011 - 2014

3 ans 1 mois

Portfolio

Développeur Android Kotlin – Application Mobile

Les Echos

Bankin'

Boolder

Lydia

Daxium

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