Freelancer profile translated to English.
Back to original languageAbout Mathis
Lead Mobile Developer with 5 years of experience, I specialize in the Apple ecosystem (Swift, SwiftUI) with strong proficiency in Android and shared technologies (Kotlin Multiplatform - KMP/KMM).
I am currently working as a Technical Director of an agency, with a very hands-on approach: I code daily, implement robust software architectures (Clean Architecture, modularization), and manage technical debt.
In 5 years, I have had the opportunity to develop and technically lead over 25 applications for startups and major clients (Alpine, Renault, Olympique de Marseille, Focal, Richardson). In parallel, I work as a reference trainer for Apple technologies.
My areas of expertise:
Native & Shared Development: Swift, SwiftUI, VisionOS, Kotlin, Jetpack Compose, KMP/KMM.
Architecture & Delivery: Clean Architecture, CI/CD, automated tests, performance optimization.
Lead & Mentoring: Technical project leadership (from scratch or redesign), code reviews, coaching, and skill development for developer teams.
Whether you need to create a high-performance application from A to Z, clean up an existing codebase, or strengthen your team with a Lead profile, do not hesitate to send me a message to discuss your project.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- Dev-idTechnical Director Paris & Lead DeveloperDIGITAL AND ITJanuary 2026 - Today (7 months)Leadership of the Paris agency (8 devs): Sprint organization, code reviews, daily mentoring of 6 people to ensure technical delivery. Active Development & Architecture: Daily code contribution (SwiftUI, Kotlin, KMP/KMM). Guarantee of architectural choices (Clean Architecture) and performance. Quality & Strategy: Supervision of application redesigns, performance optimization, CI/CD automation, and technical debt management.
- Dev-idMobile ApplicationsDIGITAL AND ITMarch 2021 - Today (5 years and 5 months)Technical Direction (25+ projects): Technical lead and development for major clients: Alpine, Renault, OM, Focal, Richardson. R&D Innovation: Implementation of scalable architectures, Kotlin Multiplatform (KMP/KMM), and VisionOS. Mentoring: Training and technical guidance of junior developers and students.DeveloperDesign and development of native iOS and Android mobile applications from A to Z (following a 6-month end-of-studies internship converted into a permanent contract).
- Apple Foundation ProgramReference TrainerMay 2025 - Today (1 year and 3 months)Paris, FranceAdvanced teaching of the Apple ecosystem (Swift, SwiftUI). Technical support for student cohorts over complete iOS application design cycles.
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Education
- Trainer Training (Pedagogical Engineering)Simplon.co|Paris2025Formation de Formateur (Ingénierie Pédagogique)
- Epitech Educational and Pedagogical Technologies2021Epitech Technologies Éducatives et Pédagogiques