Freelancer profile translated to English.
Back to original languageAbout Julien
Senior iOS mobile developer with 13 years of experience, I design and evolve high-traffic, business-critical mobile applications. After an initial two years on Android, I definitively specialized in the iOS ecosystem.
I primarily work on large-scale consumer applications, such as EDF&Moi, Engie, MyDS / MyCitroën / MyPeugeot (Stellantis), and BforBank.
On the latter, I worked on a modern application leveraging the latest iOS technologies: Swift 6, SwiftUI, Swift Testing, MVVM-C Clean Architecture, with development designed for accessibility (VoiceOver, Dynamic Type, Dark Mode). All projects run with a CI/CD, set up by myself or the team, using tools like Sonar, Jenkins, Bitrise, or Fastlane.
Beyond development, I have also taken on the role of Tech Lead: defining architecture, mentoring juniors, code reviews, best practices, and technical animation.
Former Scrum Master for two years, I am SAFe Scrum Master certified, which facilitates communication with Product Owners, designers, and business teams.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- ENGIE (prestation Capgemini)iOS DeveloperENERGY AND UTILITIESMay 2022 - July 2023 (1 year and 1 month)Bagneux, FranceiOS Developer on the ENGIE Particulier consumer application which allows for the display of electricity or gas consumption, payment of bills, tracking payment schedules, subscribing to options, etc.I participated in the implementation of the new Dashboard and the transition from UIKit to SwiftUI, and from RxSwift to Combine.I participated in the setup of a CI/CD using Jenkins and Fastlane.I implemented UI Tests to automatically validate user journeys.
- Stellantis (prestation Capgemini)Tech Lead iOS / Scrum MasterSOFTWARE PUBLISHINGJuly 2018 - May 2022 (3 years and 10 months)Poissy, FranceI joined the Stellantis MyBrands teams to develop the MyDS, MyCitroen, MyPeugeot, MyOpel, MyVauxhall applications. I started as an iOS developer, then Tech Lead, then Scrum Master.These applications had the unique feature of connecting via Bluetooth to vehicles to retrieve mileage, fuel, and geolocation information to calculate the vehicle's maintenance timeline in-app. We also integrated into the applications the ability to order an electric vehicle via data commands sent to the vehicles to obtain the charging status as well as the ability to activate/deactivate this charging.
- EDF (prestation Capgemini)Tech Lead iOSSOFTWARE PUBLISHINGFebruary 2015 - February 2018 (3 years and 1 month)Suresnes, FranceiOS Developer then Technical Lead for the EDF&Moi application.Development of the news feed, consumption graphs, and Similar Household comparisons.
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Education
- EngineerECE - Paris2012Formation généraliste. Prepa intégrée contenant mathématique, physique, electronique, informatique. Spécialisation système embarqué en 3eme année.