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Henry HuynhHH

Henry Huynh

🚀 Flutter Developer - Dart | iOS - Android

€450/day
4 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Henry

Hello and thank you for visiting my profile đź‘‹

⚡️ About me:
I am a mobile application developer specializing in theFlutterframework since 2022. I have had the opportunity to collaborate with several startups in various fields such as events and decentralized finance.

🧑‍💼 Collaborations:
During my career, I have worked with several notable startups, including:
  • WeKlean (events and ecology)
  • Stokn (decentralized finance)
  • Dahlia (events)

✅️ Why Flutter:
Flutter is the technology supported by Google to create cross-platform applications with a single codebase.
Flutter can be a competitive advantage for you as it allows you to create your application for iOS and Android at once, which will cost you much less than having your application developed separately for iOS and Android !


✅️ My approach:
You can count on me for a high-quality deliverable. I prioritize quality over quantity, which is reflected in my development method.
Each project is developed following Clean Architecture and is accompanied by Unit Tests to ensure code robustness and minimize bugs, both during development and maintenance.

đź›  My skills:
  • Flutter / Dart
  • Firebase
  • Clean Architecture
  • Unit Tests
  • Web Scraping

đź“… Follow-up and communication:
With me, you will benefit from weekly project progress updates, whether by email, message, or phone call, until final delivery.

✒️ Tailored support:
Not sure exactly what you need for your project? No problem! I'm here to help you define your specifications and accurately estimate your project.

Feel free to contact me now to discuss your project!
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Paris (up to 10km)

Experience

  • Digifood
    Flutter Developer
    September 2024 - Today (1 year and 8 months)
    - Refactoring of the mobile project by implementing Clean Architecture principles, making the codebase modular, scalable, and testable
    - Writing unit tests and integration tests to improve code quality and facilitate future application development
    - Achievements leading to NF525 certification
    Flutter Dart Clean Architecture Bloc Pattern
  • WeKlean
    Flutter Developer | iOS - Android - Web
    ENVIRONMENTAL
    September 2022 - February 2024 (1 year and 6 months)
    Paris, France
    2022 Achievements:
    - Architecting the Firebase backend and applications (user, admin, auxiliary)
    - Implementing authentication, Push Notifications, Google Maps, Google Analytics, BigQuery + Looker Studio, Cloud Functions, Firestore + security rules
    - Integrating the gift card provider API
    - Integrating Brevo (SendInBlue) for transactional emails
    - Integrating Monday.com for an overview of WeKlean's activity + Data Analysis
    - BLoC pattern and State Management
    - Publishing applications in the Stores
    - Small API Scraper in Python
    - Forking the Geolocator plugin

    2024 Achievements:
    - Refactoring the backend codebase (Cloud Functions) to adopt Clean Architecture with nearly 100% test coverage

    Stack: Flutter - Dart - Firebase - Firebase Cloud Functions - Typescript - BigQuery - Monday - Python
    Flutter Firebase Typescript Big Query Monday Dart Python GoRouter BLoC Firestore Cloud Functions Google Data Studio
  • Stokn
    Flutter Developer | iOS - Android
    PRIVATE EQUITY
    September 2023 - February 2024 (6 months)
    - Development of the Stokn mobile application with Flutter - Dart

    - Structuring the application with Clean Architecture, BLoC pattern, and GoRouter
    - Implementation of unit tests
    - Collaboration with the backend developer

    Features implemented:
    - authentication
    - portfolio (deposit / withdraw)
    - swap / trade
    - marketplace
    - recurring swap
    - pin code guard
    Flutter Clean Architecture GoRouter Dart Unit Tests

Reviews

5.0

Out of 2 ratings

Danc.rD

Danc.r

DANCR SAS

Reviewed on 9/9/2024

Great working with Henry, we're even extending with an additional mission!
G

Grégoire

Datasymbiosis

Reviewed on 7/18/2024

Very satisfied with the work delivered: very clean and sustainable code in the long term. Henry was attentive to our expectations and delivered quality work within the given timeframe.

Recommendations

GQ
Florian LentzFL
Grégoire Quessette and 1 other person have recommended Henry

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Education

  • General Baccalaureate, Mathematics - Engineering Sciences - Computer Science
    Lycée Chaptal
    2021
    Baccalauréat général, Mathématiques - Sciences de l'ingénieur - Informatique

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