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Wassim A.WA

Wassim A.

Senior Mobile Engineer | Android & iOS

€500/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Wassim

Immediately available

Senior Android & iOS mobile engineer with over 10 years of experience in mobile application development.

Autonomous and quality-oriented, I specialize in native Android development (Kotlin, Jetpack Compose) and iOS (Swift), with a solid mastery of modern architectures and API integration (REST, Retrofit). I also have experience with services such as Firebase and AWS Amplify.

I support my clients end-to-end: from design to development, through to production, providing technical advice to ensure performant, reliable, and scalable applications.

Feel free to contact me to discuss your project.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • Europcar Mobility Group
    Senior Android Developer
    TRANSPORTATION
    January 2019 - Today (7 years and 7 months)
    Paris, France
    🔹 Experience

    Senior Android Developer working on high-audience mobile applications in the mobility and services sectors.

    🚗 Europcar

    International vehicle rental application used in over 130 countries. I worked on integrating a new payment provider, migrating CI/CD from Bitrise to Jenkins, and managing releases and bug fixes. I contributed to improving the overall stability and quality of the application, developing in Kotlin within a modular architecture (MVVM) and collaborating with backend and QA teams.

    📱 OSCAR

    User-oriented mobile services application. I participated in developing features in Kotlin, integrating REST APIs, as well as fixing bugs and improving user experience and stability.

    🎯 Summary

    Experience with critical, high-audience mobile applications, with expertise in Android development, API integration, CI/CD, and continuous improvement of software quality.
    CI/CD (Jenkins, GitLab CI, Bitrise) Kotlin (Android) Jetpack Compose MVVM REST
  • Chifco
    Tech Lead Android - iOS
    INTERNET OF THINGS (IOT)
    September 2017 - December 2018 (1 year and 4 months)
    Sousse, Tunisia
    As Tech Lead Android & iOS, I managed the development of mobile applications on both platforms, ensuring technical design, team guidance, and delivery quality.

    🔧 Main Achievements

    I participated in the design and development of native mobile applications in Kotlin (Android) and Swift (iOS), implementing robust and maintainable architectures. I also handled REST API integration and managed performance and stability issues.

    🚀 Responsibilities

    I was responsible for the technical coordination of mobile teams, developer support, and validation of architectural choices. I also contributed to the delivery and production phases, ensuring the overall quality of the applications.

    🎯 Summary

    Mobile Tech Lead experience on Android and iOS, combining development, architecture, and technical leadership, with a strong focus on application quality and stability.
    Android iOS Swift Kotlin Java
  • UpperSkills
    Web Mobile Developer
    SOFTWARE PUBLISHING
    June 2015 - August 2017 (2 years and 2 months)
    Tunis, Tunisia
    Web and mobile developer with a strong Android focus, involved in the development and evolution of hybrid and mobile applications.

    🔧 Main Achievements

    I participated in the development of web and mobile features, with a strong involvement in the Android part. I worked on integrating REST APIs, fixing bugs, and improving application performance and stability.

    🚀 Responsibilities

    I was in charge of developing new features, corrective and evolutionary maintenance, as well as collaborating with product and backend teams to ensure the quality of deliverables.

    🎯 Summary

    Experience in web and mobile development with an Android focus, centered on feature delivery, software quality, and continuous application improvement.
    Android REST Kotlin Java Angular

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Education

  • Professional Master's Degree in Embedded Industrial Systems (EIS)
    National Engineering School of Sousse
    2013
  • Master's Degree in Computer Science
    Faculty of Mathematical, Physical and Natural Sciences of Tunis
    2010

Skill set

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