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Florian GuillauminFG

Florian Guillaumin

Mobile Application Developer iOS/Android +10 years

€600/day
74 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Florian

Mobile developer with over 10 years of experience, I create modern and high-performance mobile applications for iOS and Android using React Native and Ionic (with Capacitor, Cordova, Angular, or Vue.js). I use the best tools on the market to create the most reliable, secure, and modern app possible.

My methodology:

I work in **small progressive batches**, allowing my clients to quickly test the application and adjust features as needed. You will have a **functional version early in the project**, enabling you to focus on your business while I handle the development. **I meet deadlines**, so you won't have any unpleasant surprises.

Key skills:


*React Native&Ionicfor fluid mobile applications
  • Integration of advanced features:Push Notifications, Geolocation, Camera, In-App Purchases, Integrated Advertising, Sign in with Apple, Google, and Facebook, Offline Mode, QR Code Scanner
  • Creation of robustAPIswithNode.jsandNestJS
  • Expertise with cloud services like **Firebase**, **AWS**, to manage data and infrastructure
  • Artificial Intelligence: Since 2020, I have been using all available tools to produce the most reliable and secure applications using AI tools like Copilot, Claude Code, and Codex.

My experience:

I have supportedentrepreneurs**, **SMEs**, and **large corporationsin their mobile projects. Whether forcustomapplications, **redesigns**, or **expert missions**, I ensure that every project is **successful**.

I am responsive and attentive, available byemail, phone, WhatsApp, Teams, or Meetaccording to your preferences. **I'm told I'm very friendly 😄**, so don't hesitate to contact me!
  • English

    Native or bilingual

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Groupama
    Creation of an iOS and Android application
    BANKING AND INSURANCE
    April 2022 - July 2023 (1 year and 4 months)
    A French mutual insurance company wants to modernize the design of its application.
    The mockups are already defined and the goal is to bring these mockups to life with Ionic and Angular.
    Ionic Framework Angular Material iOS Apache Cordova Mobile Application Android
  • (Client Privé)
    Creation of a social network for travelers
    TRAVEL AND TOURISM
    June 2024 - December 2024 (7 months)
    Creation of a network for travelers for a confidential client.
    Travelers can see unique activities around them and interact with the community.

    App Features:
    - Geolocation and use of Google Maps
    - Application in English and translated into multiple languages
    - Instant in-app messaging
    - Push Notifications
    - Advertising with Google AdMob
    - Integrated in-app subscription with AppStore and Google Play
    - Third-party login with Apple, Facebook, and Google
    - Photo taking and storage by the user

    Creation of the backoffice to store and manage data:
    - Data visualization
    - Photo storage on AWS S3 and delivery via CloudFront to rationalize costs
    - Management of reports
    Mobile Application Mobile Development iOS Android Angular Next.js Ionic Capacitor Admob Push Notification
  • Infopro Digital
    Creation of an iOS and Android App
    HEALTH AND WELLNESS
    March 2021 - February 2022 (1 year)
    A Health, Safety, and Environment company decides to create an application for dynamic content display, tailored to clients. The application allows for event entry via a dynamically modifiable form, thus including a form rendering engine.

    The application is built with VueJS as it's an internal skill and the development is intended to be maintained.

    App Description:
    - Creation of an iOS/Android App with Ionic 5 and VueJS 3.
    - Persistent connection with a Refresh Token
    - Translation into multiple languages
    - Offline mode for data entry
    - GPS positioning based on the phone
    - Integration of voice dictation
    Ionic Mobile Application iOS Android Cordova Typescript Vue.js

Reviews

5.0

Out of 53 ratings

C

Christophe

Fondateur - Aviiron

Reviewed on 4/28/2026

Very good collaboration with Florian once again. The delivered work meets expectations, with a real attention to detail. I am preparing the next mission with him.
C

Christophe

Fondateur - Aviiron

Reviewed on 1/21/2026

The experience was excellent from start to finish. Florian understood the functional scope well and made appropriate technical/functional suggestions. He delivered high-quality work on time. He is professional and efficient. I have already started a second mission with him.

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Education

  • Master in Management
    Grenoble School of Management
    2013
  • Computer Science DUT
    IUT Orléans
    2007

Skill set

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