Freelancer profile translated to English.
Back to original languageAbout Mathis
Mobile Developer | Flutter | Android and iOS
🤝🏼 +10 clients supported (startups, SMEs, e-commerce, health…)
✨ +4 years of experience
⭐️ Average rating 4.9/5
🎯 60% of global internet traffic comes from mobile devices compared to 40% from computers in 2024.
And 90% of this time is captured by mobile apps.
And yet, how many brands are content with a website, sometimes without even making it responsive.
❌ Low engagement.
❌ Limited conversions.
❌ Difficulties in differentiating in a saturated market.
But a well-designed mobile application changes everything.
Imagine…
A fluid, fast, and intuitive app, perfectly aligned with your product, that captivates your users, strengthens your brand, and becomes a central growth lever for your business.
Expected results?
🚀 Increased engagement: apps opened +11x/day on average, long and targeted sessions.
💳 Optimized conversions: up to 3x better than a mobile site, effectively boosting revenue.
📈 Improved loyalty: retention increased by 23%, customers spend +67% on apps.
🕐 Increased exposure: 3-4 hours/day spent on mobile compared to ~2 hours on computer.
👋🏼 I'm Mathis, a Flutter developer for over 4 years. I've helped over 10 clients design strategic, high-performing, and profitable mobile apps.
✅ WHAT I OFFER
➞ Custom Development
High-performing, modern mobile app, ready for the App Store and Play Store.
➞ Redesign of Existing Apps
Better UX, better design, optimized and maintainable code.
➞ Backend & API
Creation or connection to your databases and services (Firebase, Supabase, REST…).
➞ Support & Evolutions
Continuous updates and new features.
🧰 Tools: **Flutter**, **Dart**, **Firebase**, **Supabase**, Git, CI/CD, automated tests.
🚀 Your business deserves anoptimized and profitablemobile presence.
📩Contact meto bring your project to life!
French
Native or bilingual
English
Fluent
Can work on-site
Montpellier (up to 50km), Paris (up to 50km), Nice (up to 50km), Lyon (up to 50km), Nantes (up to 50km)
Experience
- Premonia Sarl
On Malt
Mobile Developer | Flutter | Android | iOS | Web Developer | React.JSSOFTWARE PUBLISHINGJuly 2025 - April 2026 (8 months)Montpellier, France🤝 For Premonia Sarl, the objective was to launch Recolinks, an innovativetrust-based recommendationplatform, by creating a complete ecosystem: anintuitive mobile application for individualsand a **high-performance web application for professionals**.🛠 As a Mobile and Web Developer, my contribution covered the development of the entire ecosystem:- Development of the cross-platform mobile application from scratch withFlutter**, natively targeting **AndroidandiOS**, with a focus on a **fluid user experienceto maximize engagement.
- Implementation of asecure sharing and invitation systemto encourage viral spread of recommendations and ensure **user data protection**.
📊 Results & Impact:✅ Reduced development budget by 40% thanks to the choice ofFlutter**, allowing code to be shared for **AndroidandiOSapplications.✅ Successful launch of the complete ecosystem in just 3 months,accelerating time-to-marketand enabling **rapid acquisition of early users**.✅ Concept validation with **over 1,000 recommendations generated within 2 months of launch**, demonstrating strong adoption of the mobile application.Technologies: Flutter, Mobile Development, Android, iOS, React.js, Mobile Application - MobifyMobile Developer | Flutter | Android | iOSSOFTWARE PUBLISHINGJanuary 2023 - Today (3 years and 7 months)Montpellier, France🎯 Mobify, an agency specializing in **mobile application development**, aims to design and deliver high-performance cross-platform applications for its clients, covering both Android and iOS ecosystems.🛠 As a **Flutter Mobile Developer**, I managed the complete development cycle for several client projects:*End-to-end design and development of mobile applicationsusingFluttertechnology, creating a native and consistent user experience oniOSandAndroidfrom a single codebase.*Integration of complex third-party services(REST APIs, Firebase/Supabase databases, payment solutions) and management ofdeployment on the App Store and Google Play Store**, including testing, **publication**, and **maintenancephases.📊 Results & Impact:✅Reduction of development and maintenance costs by 30-40%for end clients by using a single codebase with Flutter.✅Accelerated time-to-marketby several weeks per project by streamlining the development, testing, and deployment process for both mobile platforms.✅ **Contribution to the delivery of over 5 mobile applications on the stores**, achieving average ratings above 4.5/5 and precisely meeting clients' business needs.Technologies: Flutter, Mobile Developer, Mobile Application, Android, iOS, Firebase, Dart, Supabase
- GawaMobile Developer | Flutter | Android | iOSENTERTAINMENT AND LEISUREJanuary 2023 - May 2023 (4 months)Strasbourg, France🍻 For Gawa, a startup in the Leisure and Entertainment sector, the goal was to create an innovativeloyalty mobile applicationfor bars and restaurants. The challenge was to design afluid user experiencewhile integrating **complex features for professionals**.🛠 As a mobile developer, my contribution focused on:
- Design and development of the complete mobile application from scratch inFlutter**, for native deployment on **Androidand **iOS**.
- Implementation of anauthenticationsystem via Firebase and integration ofgeolocation with Google Mapsfor an enriched user experience.
- Setting up amulti-role managementsystem (customer, server, admin) and aQR code validationflow to secure transactions.
📊Results & Impact:✅Reduced development timeby 30% thanks to the use of Flutter, allowing for **simultaneous launch on iOS and Android**.✅Improved conversion rate at registration by ~20%thanks to a simplified and fast authentication process via Firebase.✅ Increasedoperational efficiencyfor partner establishments, withvalidation time for consumption halvedthanks to the QR code system.Technologies: Flutter, Mobile Developer, Mobile Application, Android, iOS, Firebase, Dart, Supabase, Google Maps
Reviews
Recommendations
+7
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Education
- Expert in Information Technology RNCP Level 1, ProgrammingEPITECH - European Institute of Technology2025Expert en Technologie de l'Information RNCP Niveau 1 , Programmation
- Scientific BaccalaureateBeauséjour2020Baccalauréat scientifique