You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Nicolazic TardyNT

Nicolazic Tardy

Flutter & iOS — Mobile application takeover

€300/day
3 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Nicolazic

I develop and take overFlutter**and**iOS**production mobile applications**.

I step in when amobile application becomes**unstable** ,frozen,or**difficult to evolve** : critical bug, impossible build, technical debt, or store publication issues.

I can intervene quickly to:

  • fix ablocking bugon a Flutter or iOS application
*unblock an App Store / Play Store publication
  • take over a project left by another developer
  • stabilize an existing mobile application
  • perform aquick technical auditto identify architecture or performance problems

I regularly intervene onshort and urgent missionswhen an application needs to be quickly put back into production.

I can also intervene on thebackend (Node.js, PHP or REST APIs)when the problem blocks a mobile feature.

Main technologies:
Flutter / Dart, iOS (Swift / UIKit), Firebase, REST APIs, Stripe.

I co-founded two companies around mobile products that I developed myself, which allows me to align technical, product, and business decisions.
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Basic

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • AST Blitz
    AST Blitz — From scratch creation of a mobile application
    EDUCATION AND E-LEARNING
    December 2025 - Today (8 months)
    Paris, France
    Complete creation of an educational mobile application, developed from scratch as part of the co-founding of the AST Blitz project.

    Starting from interactive mockups, design and end-to-end development of the Flutter application: definition of the architecture, implementation of core features, and preparation for production release.

    Clean Architecture (core / data / domain / presentation) ensuring maintainability and scalability.
    Implementation of state management with Riverpod and navigation with go_router.

    Main features:
    – Quiz system with multiple question types
    – Social and competitive modes (duels, real-time interactions)
    – Real-time synchronization via Firebase Realtime Database
    – Authentication management
    – Usage tracking and monitoring via Firebase Analytics and Crashlytics

    Technical product management from idea to deployment: structured backlog, technical roadmap, and continuous iterations.
    Application currently in the finalization phase before publication on the stores.
    Flutter Firebase API Integration SQLite Education
  • JNStudio
    Carnage — Real-time social mobile application (in progress)
    VIDEO GAMES AND ANIMATION
    November 2025 - Today (9 months)
    Paris, France
    Design and development of a real-time social mobile application, as part of the co-founding of the Carnage project.

    Responsible for all technical development: architecture definition, real-time mechanics implementation, and structuring a scalable data model.

    Key features in the finalization stage:
    – Real-time voting and interactions
    – Duels between users
    – Room system with anonymous interactions
    – Media challenges (images / videos)

    Design of an optimized architecture for loading and broadcasting media (4-layer system), as well as a complete restructuring of the data model to support dynamic multilingualism.

    Stack: Flutter, Firebase.
    Application currently in the finalization phase before production release.
    Flutter Firebase Mobile Application Cross-platform Real-time
  • AMEVA
    Missing — Complete takeover of a production iOS app
    CIVIC AND SOCIAL ORGANIZATIONS
    November 2025 - Today (9 months)
    Paris, France
    Takeover of an already in-production iOS application, dedicated to finding missing persons, animals, and objects.

    Ongoing mission, carried out solo. The application had stability, security, and maintainability issues that severely limited its evolution.

    Intervention on the existing system: technical and security audit, correction of memory leaks, progressive restructuring of the architecture, and stabilization of critical features.

    Evolution and improvement of existing features, followed by the addition of new capabilities put into production:

    • Live video SOS
    • Real-time geolocation
    • Integrated chat
    • Rewards system and in-app purchases

    Continuous production monitoring and regular deployments on the App Store. (Missing - SOS disappearances)

    Stack: iOS (Swift / UIKit), Firebase, CakePHP backend.
    Swift Mobile Application PHP Firebase In-App Purchase

Reviews

5.0

Out of 1 rating

A

Alen

Exploitant app mobile - Caraddikt

Reviewed on 4/21/2026

Excellent Freelancer, I recommend him. Very good communication and very responsive. He provided me with the work I wanted in a very structured way and didn't hesitate to discuss with me more than he had to, showing a real desire to help me with my project.

Recommendations

Marine Binard TardyMB
Augustin DryeAD
Marine Binard Tardy and 1 other person have recommended Nicolazic

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Common Core
    42
    Le tronc commun de l’école 42 forme des développeurs capables de résoudre des problèmes complexes en autonomie, avec une maîtrise poussée du langage C, de l’algorithmie, de l’architecture logicielle, et du travail en équipe. Sans profs ni cours classiques, les élèves apprennent à apprendre, à s’adapter rapidement à n’importe quelle stack, et à livrer du code fiable, maintenable et performant, même sous pression.

Skill set

Categories