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Armand PetitAP

Armand Petit

Mobile Developer | React Native | iOS & Android

€550/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Armand

React Native Mobile Developer | iOS | Android | TypeScript 📱

Do you need a performant and stablemobile application**, but are you worried about a long, costly, or difficult-to-maintain project? I offer you a **turnkey solutionwithReact Native**, to quickly deliver a robust and scalable **iOSandAndroidapp.

I will guide you from the idea to the launch to design afunctional mobile application**, ready to be published on the **App Store(iOS) andGoogle Play Store(Android).

I am anexpert React Native mobile developer(Android & iOS) with over 6 years of experience. I have designed and deployed over 5 cross-platform mobile applications in various fields:

  • IoT and real estate applications.
  • Mobile-first SaaS applications.
  • Sports and coaching applications.
  • Internal business applications.

A Turnkey Mobile Application

I design reliable and production-readyReact Native mobile applications**, compatible with **iOSand **Android**, with a strong focus on **performance**, **maintainability**, and user experience.


I integrate thekey featuresyour application needs: authentication, payment, geolocation, notifications, chat, etc., leveraging a modern infrastructure with **Supabase**.

I will support you throughout the entire project, from the idea to thedeployment on the App Store(iOS) andGoogle Play Store(Android), with a clear, structured, and results-oriented approach.

Ready to Launch Your Mobile Application?

Contact me for an initial discussion(response within 2 hours).

We will schedule a video call to review your mobile application project and discuss how I can assist you, from the idea to its launch on the stores (iOS and Android).
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km), Marseille (up to 50km)

Experience

  • Crisp
    Mobile Developer | React Native | iOS & Android
    SOFTWARE PUBLISHING
    July 2025 - Today (1 year and 1 month)
    Nantes, France
    → Mission Objective:
    Modernize and make reliablethe Crisp React Native SDK to optimize its integration and compatibility with the latest mobile architectures.

    → Achievements:

    *Comprehensive auditof the React Native SDK architecture, with updates to iOS/Android dependencies (Java, Kotlin, Swift, Objective-C) to improve stability and performance.
    • Preparation of theSDKfor the new React Native architecture (TurboModules, Fabric) to ensure long-term compatibility and a smooth developer experience.
    *Improvementof technical documentation and developer experience, enablingfaster integrationand increased customer adoption.

    → Technical Stack:
    React Native,Kotlin,Swift,iOS,Android, TurboModules, Fabric
    Mobile Developer React Native Developer React Native Development iOS Android
  • The Mobile-First Company
    Mobile Developer | React Native | iOS & Android
    SOFTWARE PUBLISHING
    July 2025 - September 2025 (2 months)
    Paris, France
    → Mission Objective:
    Develop new mobile features to improve theuser experienceandefficiencyof the Allô phone system for entrepreneurs and SMEs.

    → Achievements:
    • Development of an integrated feedback system within theReact Native/Expomobile application to optimize the quality of AI-generated summaries.
    • Improvement of the CRM onboarding process after the paywall, with seamless CRM integration and REST API communication to boost user activation.
    • Addition of advanced filters (missed calls, voicemails) and specific onboarding for teams, enhancing productivity and mobile app adoption.

    → Technical Stack:
    React Native,Expo,TypeScript,AI,Mobile Application, CRM Integration
    Mobile Developer React Native Developer React Native iOS Android
  • Theodo
    Mobile Developer | React Native | iOS & Android
    SOFTWARE PUBLISHING
    April 2025 - July 2025 (3 months)
    Paris, France
    → Mission Objective:
    Rethink Vivoptim's onboarding process toharmonize the web and mobile experience**, while ensuring technical **quality,maintainability, and **scalability**.

    → Achievements:
    • Development ofkey modules(profiling, eligibility, consent) in React Native/Next.js with Expo and TypeScript, following Clean Architecture and SOLID principles to maximize robustness.
    • Implementation of a unifieddesign systemwith Tamagui and Turborepo, improving visual consistency and reducing cross-platform development time.
    *Internal documentationandtrainingon Expo EAS, with Vitest unit tests to enhance quality and accelerate technical team onboarding.


    → Technical Stack:
    React Native,Next.js,Expo,TypeScript,Android,iOS,Tamagui, Clean Architecture, SOLID, Turborepo, Vitest
    Mobile Developer React Native Developer React Native iOS Android

Reviews

5.0

Out of 1 rating

KevinK

Kevin

KevinDumont

Reviewed on 3/17/2025

Armand provided good advice and was very attentive to quality and detail. It was a real pleasure to work with him and I hope to do so again in the future.

Recommendations

Mathieu DacheuxMD
Philippe AcquierPA
Leon AmirkhanianLA
+7
Mathieu Dacheux and 9 other people have recommended Armand

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Education

  • Engineering Degree specializing in Digital Transformation of Industrial Systems
    IMT Atlantique
    2023
    Maîtriser les technologies de l'industrie 4.0.

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