Florent Sebag
Senior Android Developer | Kotlin, Jetpack Compose
Salary / Daily rate
Paris, France
Freelance, open to permanent contract
Can come onsite
Skills
Languages
About me
Intro
Senior Android Developer with 6+ years of expertise in Kotlin, specializing in clean architecture and optimized mobile applications. Proven tech leadership experience at Openbank, guiding a team of 4 developers and contributing to banking apps with 1M+ potential users. Delivering robust, well-structured code with emphasis on maintainability, performance optimization, and meeting critical deadlines.
Work experience
OpenbankFreelance
Feb 2022 - Mar 2025
3 years 2 months
Remote, OR 97458, USA
Technical Lead
Mar 2024 - Mar 2025
1 year 1 month
Remote, OR 97458, USA
Tech lead of 4 Android developers.
Android | Kotlin developer - Freelance
Feb 2022 - Mar 2025
3 years 2 months
Remote, OR 97458, USA
Tech lead of a team of 4 developers at Openbank Madrid, working on an online banking application for individuals, currently available in several countries. I significantly contributed to the production release of the Mexican app, which is set to be used by over a million users starting this year. The application was structured into more than 15 projects, each corresponding to a component or functionality. Three layers of projects were also implemented to meet architectural needs. Additionally, during the past year, I participated in the redesign of the architecture and the migration of all pages to Jetpack Compose. - Clean Architecture, MVVM - Use of Jetpack Compose, Coroutines, Koin, Data Binding, JUnit, etc.
Lead Teacher
EPITECH - European Institute of Technology
May 2020 - Jan 2022
1 year 9 months
Barcelona, Spain
Organization of C, C ++, Java and Php courses for promotions from 1st to 3rd year, and for the web-based Bootcamp CodingAcademy. Support and monitoring of students. Team leader of the teachers - Creation of master teaching plan, team deployment and management. The courses were in Spanish and English.
Android developer - Kotlin
Worldline
Oct 2019 - Mar 2020
6 months
Lyon, France
Kotlin developer on several applications for major French banks. Responsible for creating the White Label app, designed to be presented to new clients/banks. - Clean Architecture, MVVM - Use of RxJava, Dagger, Retrofit, Material Design, etc. - Implementation of a "mock" version of the app.
Co-founder, Android developer - Java
VisiteyFreelance
Oct 2017 - Mar 2020
2 years 6 months
Augmented reality tourism: Developed an application in Java within a team of 8 developers, applying the Scrum methodology. Responsible for implementing the GPS functionality, including an interactive map allowing users to follow routes. I also contributed to the integration of the ARCore library to enable augmented reality features. - MVC - Use of ARCore, MapBox, OkHttp, Retrofit, Material Design
Project Manager & Developer - Python/SQL
Healthy Group
May 2018 - Oct 2018
6 months
Paris, France
Python Developer, responsible for database management, IT support in pharmacies, managing developer service providers, and facilitating communication between merchandising teams and developers.
Co-founder, Full-stack developer & Project manager
Stud&coFreelance
Feb 2016 - Aug 2018
2 years 7 months
Montpellier, France
A collaborative platform based on student support where everyone can both give and receive tutoring in a simple, fast, and financially accessible way. Stud&Co aims to become the essential tool to help students. Self-taught learning in web development, website launch, and management as Lead Developer. Backend in Python/Django, Frontend in Bootstrap.
Node.js developer
The Programmatic Company
Apr 2016 - Aug 2016
5 months
Région de Montpellier, France
Creation of a platform for automating and optimizing advertising campaigns on Facebook, Instagram, and AppNexus.
Education
EPITECH - European Institute of Technology
Master en informatique
2016 - 2020
4 years 2 months
Universidad Nacional de Colombia
Echange universitaire
2018 - 2019
1 year 2 months
Lycée Alphonse Daudet, Nîmes
Baccalauréat
2013 - 2015
2 years 2 months