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Thomas C.TC

Thomas C.

Android Developer, Kotlin, Flutter

€580/day
13 projects
Lyon 9e Arrondissement, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Thomas

Android mobile developer for 10 years, I am available to help you improve or develop your application.

I am available for all types of missions: whether it's setting up a new application from scratch, refactoring an aging application, adding new features, or simply maintaining an existing application!

I started as an Android/Kotlin developer in 2016 at Micropole. I evolved within this company for 4 years. During this period, I was able to improve my knowledge in Android and Kotlin and discover Flutter. I participated in the development of applications from scratch: Traceo (a business application for Star Service drivers), La Fête des Lumières, Vilmorin Jardin. I also maintained or updated existing applications: TaM, TCL, Geodis. With the expertise acquired on these varied projects, I started my own business in 2020 and since then, I have been helping various companies improve or create their applications. I participated in the improvement of 360Medics, a business application for healthcare professionals, as well as in the development of the first version of Voggt, an auction streaming application for collectibles.
For 5 years, I have been supporting Atmo on their applications: Air To Go and Captothèque. I regularly intervene to add features, apply fixes, and update dependencies.

Regarding the technical stack, I generally work on a clean MVVM architecture.
My favorite libraries are Rx, Retrofit, and Hilt. I can use coroutines and I am starting to work with JetPack Compose.

I have also used Jenkins and SonarQube, and am familiar with these tools.
On the agile practice side, I have never had a client with a real agile process, but I operate on a similar process most of the time.

Feel free to contact me!
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Lyon 9e Arrondissement (up to 20km)

Experience

  • Atmo Auvergne-Rhône-Alpes
    Android/Kotlin Developer
    ENVIRONMENTAL
    September 2021 - Today (4 years and 8 months)
    Lyon, France
    I have been working on the Air To Go Android/Kotlin application for over 4 years.
    It's an application that allows you to view the air quality status in your city, or around you via a map.

    I started by completely taking over the application.
    I updated the libraries used: migrating from Dagger to Hilt, using the new Android Navigation, implementing RxJava3, updating DbFlow.
    I modified the architecture to be closer to a Clean Architecture with MVVM.
    A new database has also been implemented in the application.

    Once this cleanup was done, I added new features to the application over the years, such as adding Widgets, adding favorite cities, or the ability to create a route and get air quality information for it. I am also there to advise my client on the relevance and complexity of new features.
    The application, initially present only in Auvergne-Rhône-Alpes and Bourgogne-Franche-Comté, has welcomed new regions, with the integration of new APIs each time. I ensure the maintenance of existing features while adding these new regions and features.
    Kotlin Hilt MVVM Mobile Development Android
  • Atmo Auvergne-Rhône-Alpes
    Flutter Developer
    ENVIRONMENTAL
    April 2022 - Today (4 years and 1 month)
    Lyon, France
    For over 3 years, I have also been supporting Atmo on their Flutter application, Captothèque.
    It's an application that allows users to report the air quality around them using a Bluetooth sensor.

    I first intervened to stabilize the application, particularly in terms of data transmission from the sensor via Bluetooth. Then, we improved the application's design and architecture, trying to get closer to a clean architecture.
    Since then, I have been maintaining the application and developing new features such as the ability to resume ongoing measurements if the application is accidentally closed, or sending data to the API in batches to improve user experience.
    Flutter iOS Development Android Development Bluetooth Low Energy
  • Dispatcher
    Malt logoOn Malt
    Android Developer
    February 2025 - April 2025 (2 months)
    Lyon, France
    I worked on the Dispatcher application to modify a feature during the extended absence of their usual mobile developer.
    It mainly involved modifying a booking flow to allow multiple bookings at once.
    I applied the design requested by the mockups, implemented the new feature with an API modification, and delivered the different versions of the application as feedback was received.
    Mobile Application Room Android Navigation Component Koin

Reviews

5.0

Out of 9 ratings

F

Florent

StayTuned.io

Reviewed on 12/4/2024

Very good experience with Thomas. He intervened with one of our clients to update the Android version targeted by their application. Everything went very well, communication was smooth and seamless. Thomas was responsive and listened to our needs. I recommend him and would not hesitate to contact him again in the future.
NicolasN

Nicolas

WAYUP

Reviewed on 4/22/2024

Thomas is a very responsive and involved developer who helped us resolve an issue we had on one of our projects. His Kotlin expertise is of high quality, I recommend him!

Recommendations

FU
Jérémie JalouzetJJ
Camille ArmandCA
+2
Former user and 4 other people have recommended Thomas

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Education

  • Computer Engineering Degree
    Polytech Lyon
    2016
    Diplôme d'ingénieur en informatique général. Option Intelligence artificiel en 5ème année
  • University Diploma in Technology in Computer Science
    IUT Lyon 1 Villeurbanne
    2013

Skill set

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