Freelancer profile translated to English.

Description

Looking for an Android developer?

You're in the right place!

I am a mobile developer with over 8 years of experience and a specialist in Android development in Kotlin and Java.

I have worked in various sectors such as e-commerce, consumer applications, and OCR.

I have collaborated with companies such as Rakuten, Fnac, Adecco, Mitek, Veolia.

I am able to:

- Develop high-performance Android applications in Kotlin

- Design, develop, and maintain features in line with business needs

- Participate in the writing of detailed technical specifications

- Collaborate with UX/UI teams to ensure adherence to Android guidelines

- Set up and improve CI/CD pipelines

- Write technical documentation

- Implement robust architectures (MVVM, Clean Architecture)

- Implement unit and integration tests for optimal coverage

- Participate in code reviews, refactoring, and continuous improvement

- Ensure deployment and publication on the stores

I also have solid knowledge of:

Jetpack Compose, Android XML, Coroutines, RxJava, Retrofit, Room, Hilt, MVI, Firebase (Crashlytics, Remote Config…), Git, Lint, as well as Agile methodologies.

I attach great importance to the quality of my work and to performance.

I send you a daily report detailing all the tasks performed.

Have a project?

Contact me, I reply in less than an hour!

Android, Android Kotlin, Android Developer, Android Java, Android Studio, Android SDK, Native Android, Android Compose, Kotlin, Developer, Senior, Jetpack, Jetpack Compose, Android, Mobile Development, "Android Developer", Mobile, Mobile Developer, Mobile App, Mobile Application, Mobile Android, Android Developer, Mobile Developer, Android Kotlin Developer, Android Java Developer, Android Java/Kotlin Developer, Android Mobile Developer

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent
Spanish
Conversational

Workplace preferences

Can work on-site

Paris (up to 50km), Lille (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Toulouse (up to 50km)

Mehdi Kermad
Android Developer
CONSULTING AND AUDITS
November 2025 - Today (7 months)
Paris, France
Since 2025, I have been working as a freelance Android developer.

I assist startups and companies with mobile challenges. My missions cover auditing, development, and taking over existing applications.

I work independently or as a team reinforcement. I collaborate with product, design, and backend teams.

Clients:
- Fraikin: Audit of a business application, recommendations, and architecture improvements.
- AaliaTech: Taking over an application, stabilization, and performance optimization.
- GravityCab: Developing an Android application from scratch with a scalable architecture.

My responsibilities:
- Technical project management for Android projects, from scoping to production.
- Conducting technical audits (architecture, performance, code quality).
- Developing Android applications in Kotlin (Jetpack Compose).
- Taking over and stabilizing existing applications.
- Migrating to modern architectures (MVVM, Clean Architecture).
- Implementing quality standards (tests, code review, best practices).
- Implementing CI/CD pipelines.
- Supporting technical teams.

I have contributed to the following developments:
- Reduction of technical debt on several applications.
- Improvement of stability and reduction of production crashes.
- Acceleration of delivery cycles thanks to CI/CD.
- Implementation of more robust and maintainable architectures.
- Overall improvement of code quality.
Android Android Studio Kotlin Java Android Developer
Rakuten
Android Developer
E-COMMERCE
November 2021 - November 2025 (4 years)
Paris, France
Founded in 1997 in Japan, Rakuten is a major player in global e-commerce with several billion euros in revenue and over 30,000 employees worldwide.
The group is also recognized for its complete digital ecosystem and its strong presence in Europe through its consumer marketplace.

I joined the Rakuten Android mobile development team in 2021 for a period of 4 years.

I participated in the development of the mobile application for buying and selling products.
We were organized into two squads for the Buyer and Seller scopes.
My team consisted of:
- 3 Android developers
- 3 iOS developers
- 1 Product Owner
- 2 Testers

My responsibilities:
- Development of features on the Android application in Kotlin (Jetpack Compose).
- Fixing complex bugs and optimizing performance (memory leaks, stability).
- Setting up and evolving an MVVM architecture with Repository.
- Implementing and improving unit tests (Mockito).
- Integrating REST web services (Retrofit, OkHttp, RxJava).
- Collaborating with product, design, and backend teams in an Agile (Scrum) context.
- Participating in code reviews and continuous improvement of code quality.

I contributed to the following developments:
- Improvement of the overall stability of the application with a significant reduction in crashes (Crashlytics).
- Increase in test coverage to over 75%.
- Optimization of performance and loading times on several key screens.
- Improvement of accessibility for users.
Android Kotlin MVVM Jenkins Android Developer
DEVOTEAM
Android Development Engineer
DIGITAL AND IT
December 2019 - November 2021 (1 year and 11 months)
Paris, France
A subsidiary of the Devoteam group, founded in 1995, this specialized entity supports companies in their digital transformation with over 10,000 employees worldwide. Devoteam generates over 1 billion euros in revenue and is regularly recognized for its technological expertise and strategic partnerships (Google, Microsoft, AWS).

Development was carried out for various major clients: Adecco, Fnac, Carrefour.
My team consisted of:
- 5 Android developers
- 4 iOS developers
- 3 Product Owners

My responsibilities:
- Development and maintenance of Android applications in Kotlin / Java.
- Migration of legacy code to modern architectures (MVVM / MVP).
- Development of new features and correction of critical bugs.
- Refactoring of obsolete libraries and code to the latest standards.
- Technical support for teams through code reviews and best practices.
- Participation in Agile rituals (Scrum).

I contributed to the following developments:
- Reduction of technical debt on several client projects.
- Improvement of application maintainability and scalability.
- Increase in test coverage and overall code quality.
- Implementation of accessibility and improvement of user experience.
Android Kotlin MVVM Hilt Android Developer

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Expert in Information Systems and Software Engineering
Ingésup
2016
Fondé en 2011, Ynov est un groupe d’enseignement supérieur spécialisé dans les métiers du numérique. Présent dans plusieurs grandes villes en France. L’établissement forme chaque année plusieurs milliers d’étudiants dans des domaines tels que le développement mobile, logiciel ou encore l’intelligence artificielle. Ynov s’appuie sur une pédagogie orientée projets et professionnalisation, avec un réseau de plus de 10 000 alumni. J’ai suivi une formation en systèmes d’information et génie logiciel, avec une spécialisation en développement d’applications mobiles Android.
BTS IRIS, IT & Networks for Industry and Technical Services
Lycée Le Corbusier
2013
Le BTS IRIS (Informatique et Réseaux pour l’Industrie et les Services techniques) est une formation reconnue dans le domaine du développement logiciel et des systèmes informatiques. Dispensée dans des établissements publics comme le lycée Le Corbusier, elle forme chaque année de nombreux techniciens spécialisés. Cette formation met l’accent sur la programmation, les systèmes embarqués et les réseaux, avec une approche concrète orientée projets. J’y ai acquis des bases solides en développement logiciel et en conception de systèmes informatiques qui m'ont permis d'acquérir mes bases pour le développement Android.

Check out Mehdi's education

Expert Diploma in Information Systems and Software Engineering
Ynov PARIS
2016
Unit Tests Java Firebase Retrofit Mobile Application Android Developer Android SDK Android Kotlin Mobile Developer

Mehdi Kermad

Android Developer Kotlin | Jetpack Compose

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