Freelancer profile translated to English.
Back to original languageAbout Jean-Philippe
Senior mobile developer (15+ years), I help companies design, optimize, and scale iOS and Android applications with high business stakes: performance, payments, and user experience.
I work on mobile applications in production used by thousands of users, with a clear goal: improve stability, speed, and conversion.
Specifically: fewer crashes, better performance, and a smoother user experience.
I primarily work on:
• iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose) application development
• Performance optimization (loading times, rendering, memory consumption)
• Crash reduction and stability improvement
• Mobile payment integration (Apple Pay, Tap to Pay, Adyen, SoftPOS)
• Robust mobile SDK development
• Architecture refactoring (VIPER, MVVM, Clean Architecture, modularization)
Key expertise:
• iOS: Swift, SwiftUI, UIKit, Combine
• Android: Kotlin, Jetpack Compose
• Mobile payment: Apple Pay, Tap to Pay, Adyen
• Backend: Firebase, Supabase
• Architecture: VIPER, MVVM, Clean Architecture
• Performance, monitoring, stability
• App Store & Google Play publication
What sets me apart:
• +15 years of experience in iOS & Android mobile development
• Experience with high-traffic production applications
• Ability to intervene quickly on critical projects
• Product + technical vision (business impact, not just code)
• Direct collaboration with CTO, product, and business teams
Available immediately remotely or on-site.
If your mobile application is slow, unstable, or difficult to evolve, I can intervene quickly.
Portuguese
Basic
Japanese
Basic
Spanish
Conversational
English
Fluent
French
Native or bilingual
Can work on-site
Lille (up to 30km)
Experience
- SweepenLead Mobile Developer (iOS & Android)SPORTSJanuary 2025 - December 2025 (11 months)Lille, FranceStartup / product build• Built the mobile application from early stages• Implemented user authentication, content feeds, and interaction flows• Integrated third-party services and backend APIs• Focused on scalability, clean architecture, and maintainabilityInvolvement: Technical ownership, feature implementation, architecture
- PurseSenior Mobile Developer – SDK Owner (iOS & Android)DIGITAL AND ITNovember 2024 - November 2025 (1 year)Lille, FranceB2B SDK development• Designed and developed a mobile SDK for iOS and Android, intended to be integrated into third-party applications• Worked on API design, documentation, and developer experience (DX)• Implemented secure payment-related features and platform-specific integrations• Ensured SDK reliability, performance, and ease of integration for client teams• Collaborated with product and technical stakeholders to define SDK capabilities and constraintsInvolvement: SDK architecture, core development, documentation, and integration support
- EazyContactLead Mobile Developer (iOS & Android)TECHJune 2023 - December 2024 (1 year and 6 months)Paris, FranceLong-term product• Designed and developed the iOS (Swift / SwiftUI) and Android (Kotlin / Jetpack Compose)applications• Implemented QR-code scanning, object registration, and real-time notification workflows• Integrated backend services, push notifications, and analytics• Worked on performance, stability, and UX improvements across multiple releases• Participated in product evolution and feature prioritizationInvolvement: End-to-end development, architecture, maintenance, and ongoing improvements
Reviews
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
- Higher National Diploma in Management Information Systems, Application Developer option.Lycée Gaston Berger de Lille2008
- Professional Bachelor's Degree in DA2I.IUT de Lille 12009