Freelancer profile translated to English.
Back to original languageAbout Corentin
Developer since 2016, I've had the chance to work in teams with various companies of different sizes (large accounts, start-ups, etc.).
I pay close attention to your business needs to address various economic challenges and to be able to quickly deploy a robust and reliable solution.
Furthermore, having already worked on various large-scale projects, I have no difficulty in quickly and easily diving into the source code of an existing project.
I appreciate elegant and efficient code, which is why I am very sensitive to good development practices, software craftsmanship, and architecture. (OOP, Design pattern, SOLID, TDD, BDD...).
Within a team, I enjoy organizing programming sessions (kata) to allow everyone to learn and share their knowledge. These exercises help teams harmonize on development practices and improve their skills.
I am also a Dart mentor on Exercism.io to help students learn a new language while solving small programming problems. I have currently mentored over 400 students.
I can bring you my expertise at an operational level:
- Project start-up, MVP
- Development of features & bug fixes on an existing project
- Development of Android and Flutter applications
- Automated testing strategy, refactoring, and technical debt reduction
Main Stack: Android (Kotlin/Java) - Flutter (Dart)
Do not hesitate to contact me, I will be happy to respond as soon as possible.
Corentin
French
Native or bilingual
English
Fluent
Can work on-site
Rennes (up to 50km), Nevers (up to 50km), Nantes (up to 10km)
Experience
- Betclic groupAdvanced Software EngineerTECHMarch 2026 - Today (3 months)I participated in the refactoring of Betclic's native mobile gaming application in Flutter, during the year 2026.
- Oui CareAndroid Developer (Kotlin/Java)SOFTWARE PUBLISHINGNovember 2020 - October 2025 (4 years and 10 months)Le Mans, FranceWork done in a team (~5 people) or alone---Maintenance and evolution of a mobile application for O2 customer service representatives. It allows them to conduct visits, take into account various customer needs, and help customer service representatives propose a quote adapted to the client's needs.The application works offline during the visit, then synchronizes with a remote database (Couchbase, Android, Kotlin, Java).---Maintenance and evolution of a mobile application for O2 service representatives. It allows them to carry out interventions, list the various instructions from the roadmap for a service to be carried out, and consult the intervention schedule.The application works offline and communicates with an API to know the intervention schedule and synchronize time tracking (Android, Kotlin, Java).---Creation of a mobile application for O2 service representatives. Modernization of the Android application to a Flutter application. It includes the same functionalities as the previous application but integrates better with O2's IS (micro-services).
- WijinIT ConsultantDIGITAL AND ITFebruary 2020 - October 2020 (9 months)Région de Rennes, FranceWork done in a team (~4 people) or alone- Android trainer for Dolfi company- Development of a website for Groupama Loire Bretagne employees. It allows them to consult their individual social balance sheet (Vue, Nuxt, Java, Spring).- Maintenance and evolution of a web application for managing technicians on an interactive map for Enedis. (Java, Spring, Angular, LeaftletJS, OpenStreetMap).- Development of a website to present the accessi.pro brand (Angular)
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Education
- Master 2 - IT Systems Design Project ManagerIMIE - Digital Sector School2019
- Master 1 - Digital Project Designer DeveloperIMIE - Digital Sector School2018
Certifications
- Professional Accessibility Expert - RGAA 4accessi.pro