Freelancer profile translated to English.
Back to original languageAbout Quentin
[Bilingual 🇫🇷, 🇺🇸]
I create polished and high-performing mobile & web experiences in React Native | Expo and Next.js.
👉 Here's my profile without the fluff
- My core expertise -> mobile, from conception to deployment.
- But I also master -> web, with the best tools.
- What I bring extra -> product & design, count on me if needed. I master Figma and more!
🌎 About
I've often preferred working in startups, where a developer isn't confined to their role.
That's why I master product design, development, the analytics suite, up to deployment. From A to Z.
What I offeris to propel your product as it deserves, with the best tools on the market.
French
Native or bilingual
English
Native or bilingual
Korean
Conversational
Can work on-site
Paris (up to 50km)
Experience
- BistromoCo-founder - Frontend Lead & Design ArchitectRESTAURANTS AND FOOD SERVICEJanuary 2025 - Today (1 year and 5 months)Paris, FranceContextCreation from scratch of a mobile & web POS application (Point of Sale for restaurants). Checkout, kitchen display, and mobile ordering, all in one tool. The client's objective is to replace an obsolete system that no longer meets their needs in the kitchen and dining room.Team2 co-founders + 1 designer who joined the project along the way.My RoleDefine the frontend architecture (Expo, Next.js) and coding standards.Design the entire product UI/UX on Figma (design system, mockups, prototypes).Develop and deliver the mobile & web MVP, then iterate based on user feedback.Drive technical product decisions in direct collaboration with the co-founder.ToolsExpo, React Native, Next.js, Figma.+ Amplitude (analytics), RevenueCat, Stripe (payments)ResultsMVP delivered and deployed in production early 2026.Product validated by early users, continuous iterations.
- CochlMobile Tech LeadINTERNET OF THINGS (IOT)May 2022 - December 2025 (3 years and 7 months)South Korea Seoul Yongsan SeoulContextTechnical leadership of the mobile applications for a startup specializing in AI sound analysis, covering B2B and B2C products.TeamMobile team + backend collaboration + PM.My RoleLead the design, development, and maintenance of several mobile apps (Expo/React Native).Coordinate with backend, design, and PM teams to align roadmaps.Manage backend supervision on topics related to mobile features + direct supervision of backend freelancers on specific projects.Ensure releases and quality in production.ToolsExpo, React Native, AI / data analysis, Mobile CI/CD.Results4 applications delivered and maintained in production.Mobile apps used as field demo tools at international trade shows → extended product reach.Dashboard and internal tools ported to mobile → accessibility beyond web-only, new use cases in mobility.
- InsiteoMobile EngineerINTERNET OF THINGS (IOT)September 2020 - March 2022 (1 year and 6 months)Toulouse, FranceContextDevelopment and maintenance of indoor geolocation SDKs (Bluetooth Low Energy) for iOS, Android, and Unity platforms.TeamMobile / SDK team · collaboration with hardware and client integration teams.My RoleResearch and integration of native iOS (Swift/Obj-C) and Android (Java/Kotlin) SDKs into the Unity app.Integrate the shared C++ layer between platforms.Manage release cycles, multi-device BLE compatibility, and official documentation.ToolsiOS (Swift/Obj-C), Android (Java/Kotlin), C++, Unity, Bluetooth Low Energy.ResultsMulti-platform SDKs delivered and integrated.BLE compatibility reliability improved across a wide range of devices.
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- 1-year University Exchange - Chung-Ang University, SeoulChung-Ang University2020Échange universitaire d'un an sur le campus de Chung-Ang à Séoul, Corée du Sud
- Expert in Information TechnologyEPITECH2021Expert en Technologies de l'Information