You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Xavier MaximinXM

Xavier Maximin

Senior Android Developer (Kotlin & Java)

€500/day
3 projects
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Xavier

Senior IT engineer, with 13 years of experience, including 5 years dedicated to Android development in London. With a strong focus on quality and process optimization, I am looking for an opportunity within an agile organization. My mobility is international.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Lyon (up to 50km), Paris (up to 10km)

Experience

  • Bedrockstreaming (via Davidson )
    Android developer for a streaming platform in Lyon
    ENTERTAINMENT AND LEISURE
    July 2025 - April 2026 (9 months)
    Lyon, France
    Bug fixing on the Android player.

    Development and integration of the AdsLoader (video advertisements).

    Implementation of podcast features (audio playback, stream management, user experience).

    Development of video features and continuous improvement of the player.

    Integration and optimization of video advertising (pre-roll, mid-roll, post-roll as needed).

    Design of interfaces in Jetpack Compose.

    Modern Android development in Kotlin.

    Maintenance and evolution of components based on ExoPlayer.

    Writing and maintaining unit tests around the player and the media pipeline.
    Kotlin Exoplayer toothpick Jetpack Compose Android
  • Free SAS
    Senior Android developer
    TELECOMMUNICATIONS
    January 2025 - March 2025 (2 months)
    Paris, France
    • Skill development in the telecom sector.
    • Familiarization with Aboracco: application for managing the schedules and interventions of Free and External technicians
    • SMS notification allowing customers to know when a technician will arrive, saving workload
    • for technical support. AI control of photos taken, ensuring photos comply with ARCEP.
    • Code review of several MRs and deployment to production
    Android Kotlin Jetpack Compose Unit Testing
  • Eurosport
    Senior Android Engineer
    SPORTS
    November 2022 - April 2023 (6 months)
    Paris, France
    Client: Eurosport (Warner Bros - Discovery)

    Context: As part of adding new premium sports video rights to the Discovery+ streaming service, Eurosport's front-end teams will develop a "Sport Skin" on the video player. This is a graphical overlay that interacts with the player and allows for the live display of a timeline indicating all the most important actions of a football or rugby match (goals, cards, penalties).

    Thus, users will be able to quickly access the best moments of a match by clicking on these markers!

    Target platforms:
    - Android smartphone (landscape fullscreen)
    - Android tablet (landscape)
    - Android TV
    - Fire TV

    Organization:
    Scrum, Daily Meeting, Refinement, Retrospective

    Skills used:
    - Jetpack Compose
    - Complex and dynamic UI
    - Clean architecture
    - MVVM pattern
    - Kotlin
    - Kotlin Flow
    - Unit Testing
    - Turbine, Mockk
    - Multi modules
    - Coroutines
    - Sonarcloud, test coverage 80%
    - Fluent English (all meetings in English with the product team located in London and two other developers located in Poland)
    - Best practices (android best practices)
    Jetpack Compose Clean Architecture Test Driven Development Kotlin Android

Reviews

5.0

Out of 3 ratings

R

Renaud

Eurosport

Reviewed on 4/28/2023

R

Renaud

Eurosport

Reviewed on 1/9/2023

Recommendations

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Expert in IT and Information Systems RNCP4510
    SUPINFO - The International Institute of Information Technology
    2010
    Prépa.( Algo + Data Structure ) TOEIC 750 Mémoire sur l'industrialisation des processus de developpement. .NET Jeux video. Java J2EE
  • Baccalaureate S, Mathematics option
    Lycée Baimbridge
    2003

Skill set

Categories