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Sergio V.SV

Sergio V.

Flutter Developer | iOS & Android Applications

€320/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sergio

Freelance Flutter developer with over 6 years of experience on iOS and Android mobile applications.

I primarily work on Flutter projects: developing new features, fixing bugs, improving existing code, and publishing on the App Store and Google Play.

Accustomed to working on connected applications (REST API, AWS), I handle end-to-end tasks: API integration, state management, application architecture, performance optimization, and application stability.

I work on both existing projects (maintenance, refactoring, debugging) and the creation of MVPs and complete mobile applications.

My goal: to deliver reliable, performant, and maintainable solutions, with clear communication and respected deadlines.
  • French

    Native or bilingual

  • English

    Fluent

  • Portuguese

    Native or bilingual

Can work on-site
Paris (up to 20km), Paris (up to 30km), Lille (up to 20km), Dunkerque (up to 20km)

Experience

  • EpicStarz
    Flutter Developer - Eira (Relaxation / Meditation)
    HEALTH AND WELLNESS
    January 2026 - Today (7 months)
    Paris, France
    Development and maintenance of Eira, a Flutter mobile application dedicated to well-being, relaxation, and productivity.
    • Development of iOS and Android features with Flutter and Dart.
    • Implementation of state management solutions with Riverpod and Provider.
    • Design of a maintainable architecture inspired by Clean Architecture principles.
    • Collaboration with the product designer for the implementation of the user interface and user experience.
    • Publishing on the App Store and Google Play, bug fixing, and continuous improvement of the application.
    • Optimization of performance, stability, and functional evolutions.
    Flutter Dart Riverpod Mobile Application Development iOS Development
  • Ikigai Development
    Flutter Developer - Kojo (Health / Nutrition)
    HEALTH AND WELLNESS
    January 2025 - December 2025 (11 months)
    Paris, France
    Development and maintenance of Kojo, a Flutter application in production dedicated to nutritional tracking and adopting better lifestyle habits.
    • Development and deployment of iOS and Android features with Flutter and Dart.
    • Implementation of onboarding flows, meal logging, macronutrient tracking, and user engagement features.
    • Design of a modular and maintainable architecture to support the product's long-term evolution.
    • Integration of AWS services such as Cognito, S3, API Gateway, Lambda, and Pinpoint.
    • Use of GetX and Provider for state management, navigation, and dependency injection.
    • Close collaboration with the product team for design, testing, and feature delivery.
    • Contribution to performance optimization, code quality, and production deployments.
    Flutter Dart Amazon Web Services REST API Mobile Development
  • Profiler LLC
    Flutter Developer - Profiler (Social / Dating)
    SOCIAL NETWORKS
    January 2024 - December 2024 (11 months)
    Paris, France
    Development of Profiler, a Flutter mobile application for improving dating profiles through community feedback and behavioral analysis.
    • Development of iOS and Android features with Flutter and Dart.
    • Implementation of authentication, onboarding flows, profile creation, and image management.
    • Development of a highly interactive swipe system with smooth animations and complex state management.
    • Creation of statistics, data visualizations, and real-time feedback features.
    • Application of good software architecture practices to improve maintainability and scalability.
    • Integration of AWS services such as Cognito, S3, API Gateway, Lambda, and Pinpoint.
    • Use of GetX and Provider for state management, navigation, and dependency injection.
    • Contribution to testing, performance optimization, and overall product development.
    Flutter Dart GetX Amazon Web Services Mobile Development

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Education

  • 42 Senior Certificate
    42
    2019
    Développement Informatique

Skill set

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