About Thomas
Senior / Principal Android Engineer with 14 years of experience building and scaling production Android applications in complex, regulated environments.
I work mainly with Kotlin and modern Android stacks (Compose, MVI), and I enjoy being involved end-to-end: from architecture and tooling to feature delivery, code quality, and release management.
Over the last 4.5 years, I’ve helped design and structure Android platforms used at scale, setting up multi-module architectures, CI/CD pipelines, and best practices to keep teams productive and codebases healthy. I’m comfortable taking ownership, mentoring engineers, and collaborating closely with product, design, QA, and backend teams in remote, international setups.
French
Native or bilingual
English
Fluent
Can work on-site
Aix-en-Provence (up to 50km)
Experience
- Bally's InteractivePrincipal Android Engineer (Contractor)VIDEO GAMES AND ANIMATIONDecember 2021 - Today (4 years and 6 months)Londres, United Kingdom• • Technical reference for Android across multiple teams in high-availability environment• • Drove features and platform improvements end-to-end, from problem framing to production delivery, often starting from incomplete or high-level requirements• • Designed and structured the Android platform architecture (multi-module) to improve scalability, ownership, and long-term maintainability• • Defined and enforced Android best practices (architecture guidelines, code quality)• • Owned and evolved the CI/CD pipeline (Gradle optimization, Fastlane, automated builds)• • Acted as Android Release Manager: coordinating releases, store submissions, deliveries• • Built and maintained shared Android libraries / SDKs consumed by multiple teams• • Mentored developers through architectural feedback, PR reviews, and technical guidance• • I leverage AI-assisted development and code review workflows to improve delivery speed, code quality, and architectural consistency in large-scale Android platforms.
- IT-CE (Caisse d'Épargne)Senior Android Developer (Contractor)BANKING AND INSURANCEJanuary 2017 - January 2021 (4 years)Aix-en-Provence, France• • Senior Android contributor on a new-generation banking application• • Participated in architecture design (Kotlin, RxJava, MVP/MVVM)• • Worked on security-sensitive features: authentication, biometrics, permissions• • Strong involvement in code reviews, testing practices, and team support• • Internal training sessions on Android architecture and best practices
- Cityway (Mobility as a Service)Lead Android DeveloperTRANSPORTATIONJanuary 2014 - January 2017 (3 years)Aix-en-Provence, France
- Led the Android technical direction and development workflow
- Introduced modern practices: modular architecture, CI, code quality tooling
- Coordinated technical delivery on new features (QR code, NFC)
- Close collaboration with product and cross-functional teams
Recommendations
Be the first to recommend Thomas
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Master's DegreeUniversity of AvignonMaster's Degree
- Bachelor of ScienceUniversity of MarseilleBachelor of Science