Freelancer profile translated to English.

Description

💡 Experienced and certified Android developer (Oracle Certified Professional Java SE, Android Application Developer), I support my clients in the creation, evolution, and security of high-value Android mobile applications.

👉What I do for you:

Design, development, and modernization of Android applications leveraging the latest technologies and best practices (Kotlin, Jetpack Compose, Coroutines, Hilt, Clean Architecture, MVVM...).
Implementation of robust and secure solutions.
Improvement of user experience: accessibility, modern design, optimized performance, fluid animations (Lottie), analytical tracking (AtInternet, Piano, ContentSquare, Firebase...).
Technical leadership and coordination of Agile/Scrum teams: planning, rituals, CI/CD, code review, mentoring.
Quality and reliability: implementation of unit and instrumented tests (JUnit, Mockito, Espresso), continuous integration (GitLab CI/CD, SonarQube).

🎯My added value:

Proven expertise on consumer applications with a large audience, such as L’Identité Numérique La Poste, used by over 8 million users in France.
Ability to combine product vision and technical expertise, ensuring high-performing, scalable applications that meet the highest security standards.
Collaborative approach with product, design, and QA teams to quickly deliver reliable and scalable solutions.

📌Types of projects I work on:

Development of Android applications from scratch.
Complete redesign of existing apps.
Integration of third-party SDKs (payment, security, tracking...).
Performance optimization and security improvement.
Implementation of CI/CD pipelines and mobile development best practices.

Industry field of expertise

Languages

French
Fluent
English
Conversational

Workplace preferences

Can work on-site

Paris (up to 50km)

Le Groupe La Poste
Digital Identity
PUBLIC SECTOR
March 2022 - Today (4 years and 5 months)
Ivry-sur-Seine, France
Context:

La Poste's Digital Identity allows users to securely prove their identity via their smartphone, access online services through FranceConnect, and simplify their procedures (single login, package pickup, strong authentication, etc.).

Involvement:
Contribution to Scrum ceremonies to ensure smooth organization and constant team alignment.
Integration of the Thales SDK for authentication and sensitive data protection.
Addition of analytical tagging (AtInternet, Piano) and integration of the Tag Commander SDK for user interaction tracking.
Accessibility improvements (compliant workflows).
Generation of signed builds for production deployment.
Development and optimization of key features (100% online PVID process, BP and Postman user flows).
Management of PIN, phone number changes, digital identity deletion.
Security:
Regular security audits and compliance with ANSSI standards.
Continuous analysis of code quality and vulnerability correction via SonarQube.
Code protection against reverse engineering through ProGuard/R8 obfuscation.
Implementation of secure storage mechanisms (EncryptedSharedPreferences, Android Keystore).
Authentication and authorization security via JWT.
Implementation of advanced controls: permission management, verification of installation source, detection of rooted devices.
Strengthening user privacy by disabling screenshots in sensitive screens.
Technical Projects:
Java → Kotlin migration.
Adoption of Clean Architecture (testability, maintainability).
Migration from Dagger 2 → Hilt for dependency injection.
Transition from ButterKnife → ViewBinding.
Progressive transition to Jetpack Compose.
Jetpack Compose Hilt Clean Architecture Kotlin Kotlin Coroutines
Le Groupe La Poste
Postal Services
PUBLIC SECTOR
August 2019 - March 2022 (2 years and 7 months)
Issy-les-Moulineaux, France
Context:

Public mobile application centralizing all postal services for individuals: tracking and modifying deliveries, forwarding, online postage, product ordering, mail and package management.

Involvement:

- Active participation in Agile/Scrum rituals (planning, daily, review, retrospective)

- Major contribution to the OG+ project (complete application redesign):
Development of the new Home screen (new design, new entry points, header and footer).
Implementation of the news section and advanced filtering in the shop.
Development of the Colissimo hub to centralize delivery workflows.
Redesign of the Forwarding module to improve user experience.
Integration of AtInternet tagging for analytical tracking.
- Participation in the Colissimo Delivery project:
Development of a new delivery address form.
Addition of new delivery methods.
Integration of pickup point display on map.
- Implementation of unit tests for workflow validation.
Retrofit 2 Navigation Component Modular Architecture Kotlin MVI
Le Groupe La Poste
Youpix
PUBLIC SECTOR
August 2019 - March 2022 (2 years and 7 months)
Issy-les-Moulineaux, France
Context:
Youpix allows users to create and personalize their mail (postcards, stamps, etc.) directly from their smartphone.

Missions:
Participation in agile ceremonies (daily, planning, review, retro) and presentation of progress in demos.
Regular content updates based on seasons and events.
Addition of restrictions on messages on the back of cards.
Integration of the pack 40 throughout the application.
Management of multi-recipients: adaptation of the Room database, multi-contact selection, multi-backs on the writing screen and during finalization.
Management of drafts and errors when adding to the cart.
"Postcard rotation" animation.
App stabilization and bug fixing.

Analytics & User Tracking:
Integration of the ContentSquare SDK (tagging, screen tracking, Snapchat mode).
Creation of a ContentSquare tagging bridge → AtInternet.
Implementation of analytical tags to improve product tracking.
Other Projects:
Integration of the e-commerce component.
TDC project (Remote Content Download):
Preparation of the Room database for data storage.
Management of display with Glide and placeholders with Lottie.
Addition of best-sellers and static content.
Implementation of unit tests to ensure code reliability.
Room unit test MVVM Architecture Kotlin Coroutines Gitlab CI/CD