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wassim_sakri

Wassim Sakri

@wassim_sakri
5.0(3)

Level 1

Senior Flutter Engineer Mobile Engineer Flutter Developer

Tunisia
French, English, Arabic, German
About me
Looking for an expert Flutter developer to bring your app vision to life? Specializing in high-performance Flutter apps using Block, GETX and MVVM patterns. Proven expertise, extensive experience, UI/UX excellence, and multilingual proficiency in German, French, English, and Arabic. Get customized apps with great UI/UX, top-notch performance, and global reach. Optional add-ons for extra features, maintenance, and fast delivery. Contact me to turn your ideas into reality!... Read more

Skills

w
wassim_sakri
Wassim Sakri
Offline • 
Average response time: 1 hour

See my services

Cross-Platform Development
I will fix bugs, add new features, and improve your flutter app
5.0(2)
Android App Development
I will build mvp app from scratch flutter
5.0(1)

Portfolio

Work experience

StartUp_Names

Software Engineer / Flutter Engineer

StartUp Names • Full-time

Dec 2023 - Present2 yrs 7 mos

• Collaborated with developers to develop and add new features to the mobile app, Start 7, which has more than 50,000 users, utilizing Flutter for cross-platform development. • Reduced app load times by 20 percent through code optimization and efficient use of Flutter’s rendering engine. • Maintained a 90 percent crash-free session rate by implementing robust error handling and debugging techniques. • Regularly incorporated user feedback to refine features, boosting app ratings to an average of 4.7 stars on the Play Store and App Store.

Runner's_Athletics

Senior Flutter Engineer - Athlete Compass

Runner's Athletics • Freelance

Sep 2023 - Sep 20230 mos

• Designed and implemented intuitive user interfaces using Flutter, ensuring a smooth user experience across Android and iOS platforms. • Integrated RESTful APIs for syncing athlete data with On Running’s digital ecosystem. • Developed efficient state management solutions using Bloc, enabling scalable and maintainable code. • Conducted unit testing and widget testing to validate individual components of the application. • Implemented integration testing to ensure seamless functionality between app modules. • Integrated Amplitude Analytics into the app to track user interactions and behavior across key features.

Asda

Senior Flutter Engineer - Nafaa App

Asda • Freelance

Sep 2022 - Aug 202311 mos

• Designed and developed the Nafha mobile application from scratch using Flutter, delivering a complete cross-platform solution (iOS -Android). • Handled the full development lifecycle including UI/UX design, backend integration, and performance optimization. • Collaborated closely with stakeholders to transform requirements into a scalable and user-friendly product, focusing on delivering a fast MVP and continuous improvements.

3 Reviews
5.0

(3)
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Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-3 out of 3 Reviews
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Most relevant
    M
    image-docs

    marwenlabidi

    Repeat Client

    TN

    Tunisia

    5

    Great experience working with Wassim. He jumped right into our codebase, refactored parts of the app, and resolved our outstanding production bugs seamlessly. His integration of APIs/Firebase is rock solid, and the app runs much faster now. A true professional who writes highly maintainable code.

    Up to $50

    Price

    1 day

    Duration

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No
    M
    image-docs

    marwenlabidi

    Repeat Client

    TN

    Tunisia

    5

    Absolutely incredible work! He took my app idea and built a flawless, production-ready MVP from scratch. The Flutter frontend is smooth, the Spring Boot backend is incredibly fast, and the code is clean and well-documented. Communication was top-notch throughout the entire process. If you need a full-stack...

    Up to $50

    Price

    1 day

    Duration

    gig

    Android App Development

    Helpful?
    Yes
    No
    M

    mouaddgr

    MA

    Morocco

    5

    thank you so much brother Wassim for your good work.

    Up to $50

    Price

    4 days

    Duration

    gig

    Cross-Platform Development

    Helpful?
    Yes
    No