Steven Martreux
Freelance Mobile Developer at Decathlon
Lille, Hauts-de-France
Summary
🤩
Rockstar🎓
Top SchoolSteven Martreux is a freelance mobile developer with 11 years of experience specializing in iOS engineering, Swift (including Swift Concurrency), SwiftUI, Combine and legacy Objective-C. He has led teams and shipped production-grade, high-traffic apps across media, fintech and connected fitness—contributing Bluetooth integrations, Kotlin/Ktor mobile-facing APIs and CI/CD improvements at companies like Brut., Deezer and Decathlon. Steven combines a product-first mindset with hands-on technical leadership, prioritizing UX, reliability and cross-team collaboration between product, design and embedded teams. Comfortable moving between app-level features and SDK/back-end concerns, he often bridges mobile and backend work to deliver cohesive user experiences. Based in Lille, France, he keeps an active portfolio on GitHub and is open to new challenges and collaborations.
11 years of coding experience
8 years of employment as a software developer
EpitechComputer Science, Computer Science at California State University San Marcos
English, French
Stackoverflow
277reputation
16kreached
1answer
2questions
Github Skills (43)
layout9
height9
chainable9
partial8
swiftui8
autolayout8
harness8
ios7
ruby7
android7
nslayoutconstraints7
expressive7
swift7
android-apps6
xcode6
Programming languages (3)
Github contributions (5)
martres/DeezerTestTechnique
Sep 2017 - Oct 2018
Contributions:20 pushes, 1 branch in 1 year 1 month
deezer/iOS-sdk-samples
Dec 2017 - Dec 2017
Contributions:4 commits, 8 pushes, 1 branch in 1 day
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