Freelancer profile translated to English.
Back to original languageAbout Jérémie
Looking for an Android developer to boost your mobile project?
Want to create an innovative and efficient Android application?
You've come to the right place.
As a freelance Android developer since 2016, I design and develop innovative and high-performing mobile applications. I have collaborated with prestigious organizations such as:
- World Health Organization (Covid and Academy MOOC Application)
- SNCF Group (Railway Security)
- La Presse (Leading French-speaking Canadian news outlet)
- FinalCAD (Startup from the Next 40)
My added value?
I transform ambitious ideas into robust and intuitive Android applications, while ensuring optimal performance and a seamless user experience.
I also maintain transparent and regular communication with my clients.
I send a daily report to my clients at the end of the day on all the tasks I have completed.
I will guide you from A to Z:
- In-depth needs analysis
- Development in Kotlin and Java
- Creation of Android mobile applications
- Implementation of Continuous Integration and Continuous Deployment (CI/CD)
- Publication and management of updates on the Google Play Store
Let's discuss your project!
French
Native or bilingual
English
Fluent
Can work on-site
Lyon (up to 10km), Paris (up to 10km), Montpellier (up to 10km), Toulouse (up to 10km), Lille (up to 10km)
Experience
- SNCFLead Android DeveloperFebruary 2024 - February 2025 (1 year)Lyon, FranceDevelopment of the SUGE PV application, a tool for SUGE agents to record incidents. Includes:- 100% Offline Management- Passport and new National ID Card OCR & NFC Scanner- Repository download and management- Transformation of a Java application into Kotlin- Signature and Canvas drawing management- Offline physical address searchApplication developed with:- Jetpack Compose- Clean Architecture MVI- Android WorkManager- Technologies: Kotlin, Koin, Ktor, Moshi, Jetpack Compose Animation, Coil, Flow, Firebase, Espresso, Mockk, Kluent, LeakCanary, Gradle, etc.- Tools: Jira, Confluence, Github Action, Figma, Swagger---The Railway Security (Sûreté ferroviaire) is the railway police force of SNCF, tasked with protecting, assisting, and securing passengers, staff, and property across the entire SNCF network. It can also intervene with all other railway operators using the French rail network upon request.
- World Health Organization - Organisation Mondiale de la SantéLead Android DeveloperJanuary 2021 - Today (5 years and 5 months)Lyon, FranceAndroid Developer for the WHO's Academy application.- User registration with AppAuth OpenId- Course management with Scrom module- Multilingual support- Retrieval and display of information remotelyApplication developed with:- Jetpack Compose for visual rendering- Clean Architecture MVVM- AppAuth OpenId for user authentication- Other: Hilt, Retrofit, Moshi, Jetpack Compose Animation, Jetpack Compose Navigation, Accompanist, Firebase, Espresso, Mockk, Kluent, LeakCanary, etc.
- OpenClassroomsAndroid Developer - TrainerSeptember 2023 - March 2024 (6 months)Paris, FranceDesign and delivery of an advanced course on using the network system, titled "Retrieve and display remote data". Evaluation through quizzes and practical projects.Direct application of acquired knowledge through a weather project. Practice in manipulating remote API data with Retrofit, OkHTTP, Hilt, Moshi, etc. Use of ViewModel and StateFlow for the user interface and interaction.-----------OpenClassrooms is an online learning website, founded in 1999 as Site du Zéro. It offers its members certified courses and pathways leading to growing careers. Initially focused on computer programming, the digital platform has, since 2013, covered other topics such as entrepreneurship and digital marketing. Its courses are delivered in the MOOC format.
Reviews
Thomas
Co-fondateur - TRYNET
Reviewed on 3/4/2026
Jérémie is highly recommended! We loved working with him on the development of our new mobile application. The exchanges were fluid, simple, and very effective from day one. He perfectly grasped the challenges of our business and adapted to our requests with great responsiveness. It's rare to find someone as invested technically as they are in understanding the product. We already know who to turn to for our future developments. Thanks again!
Fabrice
Aix-Marseille Université - Plateforme technologique H2C2
Reviewed on 6/13/2025
Extremely professional service from Jérémie for our project (mobile application project in the design phase). We particularly appreciated his responsiveness and the clarity and relevance of the answers provided to our advice requests.
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Education
- Bachelor's Degree in Mobile DevelopmentUniversité de Lyon - Lyon I2017Licence spécialisée en Développement Mobile, réalisé en alternance.
- Bachelor's Degree in PsychologyUniversité Lumière - Lyon II2015Licence obtenue avec Mention Bien. Dernière année universitaire effectuée durant un échange d'un an avec l'Université du Québec.
Certifications
- Bachelor's Degree in Mobile DevelopmentUniversité Lumière Lyon 12017