Freelancer profile translated to English.
Back to original languageAbout Raphaël
🚀 Lead Fullstack Developer | +10 years of experience | +30 applications in production
I design and develop custom, high-performance, and scalable mobile applications, with a strong focus on UX, technical quality, and production reliability.
My goal: to transform your ideas into solid, elegant, and scalable mobile products.
Startups, scale-ups, or companies: I support you from conception to production, with a product, full-stack, and impact-oriented approach.
💪 Skills
- Mobile Development: Flutter (iOS / Android / Web) – 100% custom apps
- Architecture & Quality: Clean Architecture, Bloc / Riverpod, performance, scalability
- Backend & APIs: Spring Boot, Firebase, Google Cloud, PostgreSQL, REST APIs
- Real-time & Data: WebSockets, Firestore, Push notifications, offline, synchronization
- Product & UX: user journeys, onboarding, animations, advanced mobile UX
- Back-office: administration interfaces, dashboards, business tools
- Tools: Git, CI/CD, Figma 🤍
🚀 Representative Projects
- Melba – iOS/Android App with several hundred thousand users and +€100k MRR
- Gamby – Sports betting app among friends (real-time, money management, scalability)
- Les Bienfaiteurs – Flutter Web / iOS / Android E-commerce App (single codebase)
- Odontis – Dentist ↔ Student matching app (real-time chat, business algorithm)
🧭 Areas of Expertise
- Mobile apps · SaaS · Fintech · Social · E-commerce · Media · Marketplace
🛠 Technologies
- Flutter · Firebase · Google Cloud · PostgreSQL · APIs · iOS · Android
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- FlappyCTO - Co-founderDIGITAL AND ITMay 2021 - Today (5 years and 3 months)Paris, FranceAs the backend lead at Flappy, I design and maintain robust server architectures to support our Flutter-developed mobile applications.I am involved in API design, database management, authentication, performance, and overall system reliability. I collaborate closely with the mobile and design teams to ensure seamless integration between the product, user experience, and technical layer.My role is to build scalable, secure, and maintainable backends capable of supporting application growth and client business needs.
- ESGILecturer / TrainerEDUCATION AND E-LEARNINGSeptember 2020 - Today (5 years and 11 months)Paris, FranceI lecture at ESGI on key development and infrastructure topics: Cloud, Linux, and mobile development with Flutter.My teaching is practice-oriented with simulations aimed at providing students with solid technical foundations, professional methodology, and a concrete understanding of production challenges.I guide students in skill development, project completion, and best practice adoption, bridging the gap between theory, real-world constraints, and industry expectations.
- Smart&SoftAndroid Developer → Head of Mobile DepartmentDIGITAL AND ITSeptember 2015 - June 2020 (4 years and 10 months)Paris, FranceDevelopment of Android applications for major clients and media with high audience reach (BFMTV, Canal+, TF1, ePresse…), involving significant challenges in performance, stability, and product quality.Transitioned to the role of Head of the Android Department, then Head of the Mobile Department, including:
- Coaching, mentoring, and skill development for a team of approximately 10 developers
- Technical project leadership for mobile projects (architecture choices, best practices, code quality)
- Coordination with product, design, and backend teams
Simultaneously contributed to the maintenance and development of internal platforms and tools:- PHP Backend
- Vue.js Frontend
- Internal services and tools in Kotlin
Management and administration of technical environments:- Deployment and maintenance of Cloud / AWS instances
- Monitoring of internal and client platforms
- Technical support and continuous improvement of infrastructures
Reviews
AD
Account deleted
Reviewed on 3/26/2018
Raphael is organized, efficient, and attentive. It was a pleasure working with him. He resolved all display issues - with perfect mastery of mobile and iPad responsive mode management.
Thierry
Thierry Templier
Reviewed on 8/16/2018
Recommendations
+2
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Education
- Computer Engineering - MTI (Multimedia and Information Technology)EPITA2015Formation d’ingénieur en informatique sur cinq ans, incluant deux années de cycle préparatoire intégré, axée sur les fondamentaux de l’ingénierie logicielle et le développement informatique. Un cursus généraliste les premières années, puis une spécialisation progressive en 4ᵉ et 5ᵉ année. Spécialisation MTI (Multimédia et Technologies de l’Information), orientée développement web, mobile et jeux vidéo, avec une forte composante pratique et projet. Encadrement et accompagnement d’étudiants durant les trois dernières années (aide aux cours, projets et travaux pratiques). Réalisation de deux stages, dont un stage de fin d’études, permettant une immersion complète en environnement professionnel et une montée rapide en compétences avant l’entrée sur le marché du travail.