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Julien QuiévreuxJQ

Julien Quiévreux

Android Mobile Developer | Kotlin | Java

€400/day
Aix-en-Provence, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Looking for an Android developer?
Need a mobile application?
You are in the right place.

I have over 13 years of experience as an Android developer.
I had the chance to learn from talented software architects.
To work for large groups such as Seb, Atos, Snef, Digital Virgo...

I am able to:
- Develop Android mobile applications with Kotlin or Java
- Design and implement a technical roadmap
- Collaborate with product and design teams
- Implement software architecture (MVI, MVP, MVVM, Clean Archi...)
- Mentor and help junior developers improve their skills
- Implement CI/CD (Bitrise, Jenkins, Github)
- Manage an MDM
- Ensure code quality
- Manage deployment and version management on the Play Store

I also have knowledge of: Firebase, Crowdin, Bitrise, Jenkins, Gitlab, Jira...

I am committed to ensuring your users have a stable product.
To achieve this, I use best practices for code (SOLID Principles, Unit Tests, TDD, code review) and distribution (CI/CD, load testing).

Do you have a project and want to discuss it?
Contact me!
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Can work on-site
Aix-en-Provence (up to 50km)

Experience

  • Instant System
    Android Developer
    SOFTWARE PUBLISHING
    February 2024 - November 2024 (9 months)
    Nice, France
    Present in 80 cities, Instant System publishes and markets a "Mobility as a Service" (MaaS) solution for Mobility Organizing Authorities (AOM) and transport operators.

    The company was responsible for, among other things, the creation of professional and public applications for the 2024 Olympic Games.

    During this assignment, I was integrated into the technical team as an Android developer on the white-label version of their solution, and I subsequently contributed to the maintenance of legacy applications.

    The team consisted of:
    - 3 Android developers
    - 3 iOS developers
    - 3 Backend developers
    - 2 Designers
    - 1 Product Owner
    - 1 Scrum Master

    Project Methodology: SAFE

    📱As an Android developer, I was responsible for:

    - Adding features to the product-oriented application.
    - Ensuring the product complies with accessibility recommendations.
    - Adding client-specific features to legacy applications.
    - Bug fixing
    - Adapting the application to be compatible with "end to end" testing tools.

    Their consumer applications allow for multimodal transport (bus, train, on-demand transport, Vélib, etc.), with real-time management and map displays.
    They have several million downloads and hundreds of thousands of daily users internationally.

    🎯 Here are the links to different applications I have worked on:

    https://play.google.com/store/apps/details?id=com.nomad.atoumod
    https://play.google.com/store/apps/details?id=fr.bibus.android
    https://play.google.com/store/apps/details?id=com.is.android.larochesuryon2
    https://play.google.com/store/apps/details?id=com.micropole.android.tcl_mobile
    https://play.google.com/store/apps/details?id=fr.cityway.maas.oura
    https://play.google.com/store/apps/details?id=fr.cityway.android.vialsace
    Android Development Kotlin Java Android Android Development Mobile Application Development Jetpack Compose Android Jetpack Mobile Applications Development Git GitHub Github Actions TDD Test Automation Test Driven Development JUnit Accessibility Accessibility Agile Method Agile Method SAFe Coroutines Coroutine Flow Flows MVVM MVVM Architecture Koin Hilt Mockito Mockk Clean Architecture Clean Code CI/CD Continuous Integration and Continuous Delivery (CI/CD) Ktor Kotlin Multiplatform Crowdin UX User Experience Design Software Architecture Atlassian JIRA Jira Atlassian Confluence Confluence Dagger2 Google Analytics Firebase
  • Groupe SEB
    Android Developer
    SOFTWARE PUBLISHING
    July 2021 - October 2023 (2 years and 3 months)
    Lyon, France
    A world reference for small domestic appliances and professional coffee machines, Groupe SEB is present in nearly 150 countries with a unique portfolio of 35 brands marketed through multi-channel distribution.

    Android Developer in the food team, I contributed to the maintenance and addition of features to the group's connected applications.

    The team consisted of:

    - 4 Android Developers
    - 4 iOS Developers
    - 1 Scrum Master
    - 1 Product Owner
    - 2 QAs
    - 2 Designers

    We worked in an agile manner using the SAFE methodology. In collaboration with many teams such as: backend, design, product, QA, IoT.

    The applications allow for viewing recipes, publishing them, as well as synchronizing and controlling them on connected machines.

    📱 My responsibilities as an Android developer:

    - Refactoring the dozen applications into a single application managing all products.
    - Participating in the implementation of the MVI structure.
    - Monetizing the application.
    - "Gamification" of the product.
    - Migrating the "design system" to Compose.
    - R&D on tooling (plugins, theme generator, technical watch, tool optimization).
    - Java -> Kotlin migration.
    - Code sharing and cross-team practices.
    - Estimation of costs/time/needs.
    - Training for new joiners.
    - Increasing code coverage, rationalizing and stabilizing business-related issues.

    🎯 Here are the links to different applications I have worked on:

    https://play.google.com/store/apps/details?id=com.groupeseb.moulinex.food&hl=en_US
    https://play.google.com/store/apps/details?id=com.groupeseb.seb.food&hl=en_US
    https://play.google.com/store/apps/details?id=com.groupeseb.tefal.food&hl=en_US
    Android Development Kotlin Kotlin Multiplatform Java Android Android Development Mobile Application Development Mobile Applications Development Jetpack Compose Android Jetpack Git GitHub Github Actions TDD Test Automation Automation Test Driven Development JUnit Accessibility Accessibility Agile Method Agile Method SAFe Coroutines Coroutine Flow Flows MVVM Architecture MVVM Architecture Clean Architecture Clean Code CI/CD Continuous Integration and Continuous Delivery (CI/CD) Ktor Crowdin UX User Experience Design Software Architecture Atlassian JIRA Atlassian Confluence Jira Confluence Dagger2 Google Analytics Firebase
  • Atos
    Android Developer
    SOFTWARE PUBLISHING
    February 2019 - June 2021 (2 years and 4 months)
    Aix-en-Provence, France
    Atos is a global leader in digital transformation, with 107,000 employees and an annual revenue of approximately 11 billion euros. Present in 69 countries, it is the European leader in cloud, cybersecurity, and supercomputing. Listed on Euronext Paris, the company offers secure and decarbonized digital solutions.

    📱Android Developer in the embedded equipment division of SICS, I developed and contributed to the group's connected applications.


    The team consisted of:
    - 4 Android Developers
    - 1 Scrum Master
    - 1 Product Owner
    - 1 QA
    - 2 Designers

    The applications allow for the consultation and control of military equipment.

    🎯 My responsibilities as an Android developer:

    - Development of an external automatic test generation tool for modules based on reflexivity and boundary values.
    - Creation of bash scripts to facilitate hardware configuration and testing.
    - Development of communication modules between Kotlin applications and the project's Java core, validating exchanges and events.
    - Development of an application for testing and controlling the project's core application.
    - Development of a GPS application with user position feedback from military satellites and mobile sensor data.
    - Consolidation of dependency tracking and version management in the CI system based on Jenkins.

    Skills: Android · Kotlin · Java · Test Driven Development · Clean architecture · RxAndroid · Application Architecture · Agile Methods · JUnit · Android Jetpack · Android application development · Mobile application development ·
    Android Kotlin Kotlin Multiplatform Java Test Driven Development TDD Clean Architecture RxAndroid RxKotlin Software Architecture Agile Method Agile Methods JUnit Android Jetpack Jetpack Compose Mobile Applications Development Mobile Application Development Application Development Git GitHub Github Actions Android Studio Android SDK Android Development Android NDK Koin Hilt MVP MVVM MVVM Architecture User Experience Design UI/UX Design UX Mockito Mockk Test Automation Unit Tests Unit Testing Unit Test Retrofit CI/CD Coroutines Coroutine Agile Method Scrum Linux

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Education

  • BTS in Management Informatics, Application Development Option
    Lycée Dampierre Valenciennes
    2011
  • DUT in Computer Science
    Iut Informatique de Maubeuge
    2009

Skill set

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