Freelancer profile translated to English.
Back to original languageAbout Guillaume
Looking for an iOS developer to join your team?
Looking to develop an iPhone & iPad application?
You're in the right place.
I am a software engineer specializing in iOS mobile app development with over 3 years of experience in the IT services and consulting sector. I have worked with companies like Tecma Aries, Corim Solutions, Naval Group, and MBDA.
I can assist you in the following areas:
• Designing solutions that meet your functional needs
• Implementing a Continuous Integration and Continuous Deployment (CI/CD) pipeline
• Applying best development practices (Clean Code...)
• Developing iOS mobile applications in Swift
• Creating mobile applications for iPhone / iPad / Apple Watch
• Deployment to the Apple App Store.
I am passionate about developing innovative applications with a great user experience and producing quality code so that your users don't end up with a buggy application.
Shall we discuss your project? Contact me by email:
French
Native or bilingual
English
Fluent
Can work on-site
Grenoble (up to 50km), Nice (up to 50km), Lyon (up to 50km), Paris (up to 50km), Marseille (up to 50km)
Experience
- DIAGNOLY
On Malt
iPad Application DevelopmentMEDICALJanuary 2026 - January 2026Lyon, FranceDiagnoly is a French DeepTech company specializing in the development of AI-powered medical software solutions aimed at improving the quality of prenatal screening through ultrasound. The company has designed Fetoly, a cutting-edge application that analyzes fetal ultrasound image streams in real-time to assist healthcare professionals in performing more complete, standardized, and reliable examinations.Operating directly on iPad, the application integrates seamlessly with existing ultrasound systems, capturing images via the probe and device, without requiring an internet connection or impacting the usual clinical workflow.I joined the team of 5 developers to strengthen iOS development and contribute to the application's production, with the following responsibilities:- Development and improvement of iOS features in Swift/SwiftUI, in accordance with product requirements and medical domain regulatory constraints.
- Analysis and correction of blocking issues currently affecting the stability, reliability, and user experience of the iOS application.
- Implementation of optimizations and best practices to improve the maintainability, performance, and scalability of a hybrid architecture combining Kotlin Multiplatform, C++ backend, and native iOS layer.
- Enhancement of the user interface and orchestration of application flows to provide a fluid experience aligned with healthcare professionals' expectations.
- Structuring and technical documentation to facilitate tracking, maintenance, and collaboration between teams.
Skills:Swift – SwiftUI – UIKit – Kotlin Multiplatform (KMP) – C++ – Firebase – fastlane, skills=[SkillTranslatableContent(id=Swift, type=GLOBAL, name=Swift), SkillTranslatableContent(id=Kotlin Multiplatform, type=GLOBAL, name=Kotlin Multiplatform), SkillTranslatableContent(id=C++, type=GLOBAL, name=C++), SkillTranslatableContent(id=Firebase, type=GLOBAL, name=Firebase), SkillTranslatableContent(id=Dispositifs médicaux, type=GLOBAL, name=Medical Devices)]) - iRideriOS DeveloperTRANSPORTATIONSeptember 2025 - September 2025iRider is an innovative French company specializing in the safety of Light Electric Vehicles (LEVs). It develops IRAS™ (Intelligent Rider Assistance Systems), a software platform powered by artificial intelligence, computer vision, and connectivity, aimed at improving the safety of electric two-wheeler riders.As a developer, my mission was to develop a prototype to validate technical choices for their mobile application development.I perform the following tasks:
- Development of the application in Swift/SwiftUI
- Creation of peer-to-peer communication: getstream
- Display of WebRTC video stream & data stream
- Creation of a local server in Python
- Bluetooth scan development: CoreBluetooth
- Creation of WIFI access point NEHotspotConfiguration
Skills: iOS · Swift (Programming Language) · SwiftUI · Git · WebRTC · CoreBluetooth · WIFI · Peer to Peer · Python, skills=[SkillTranslatableContent(id=SwiftUI, type=GLOBAL, name=SwiftUI), SkillTranslatableContent(id=Python, type=GLOBAL, name=Python), SkillTranslatableContent(id=Core Bluetooth, type=GLOBAL, name=Core Bluetooth), SkillTranslatableContent(id=WebRTC, type=GLOBAL, name=WebRTC), SkillTranslatableContent(id=Vidéo, type=GLOBAL, name=Video)]) - PonyPony App Feature DevelopmentTRANSPORTATIONSeptember 2025 - October 2025Grenoble, FrancePony is an urban mobility application offering shared electric bikes, scooters, and kick scooters in several partner cities. It allows users to view available vehicles and parking spots on a map in real-time, subscribe to a plan that suits their needs, and reserve a vehicle for their trips. Committed to sustainability, Pony features robust and repairable vehicles while collaborating with local authorities to promote gentle mobility. The app has a 4.7 rating on the App Store from 3400 reviews. I joined the team to develop features:
- Addition of new features, including map filters to display only the desired vehicle types (bikes, scooters, or electric kick scooters) based on user selection.
- Integration and display of dedicated parking spots corresponding to selected vehicles for easier location and use.
- Implementation of contextual filtering during a trip, dynamically adjusting visible elements on the map (vehicles, parking) based on the chosen mode of transport.
- Improvement of debugging tools to optimize tracking, maintenance, and anomaly correction during development.
- Documentation setup to structure, centralize, and facilitate consultation of technical and functional project information.
Skills: Swift – SwiftUI - UIkit - MVVM - Coordinators - RxSwift - Firebase – BLE - fastlane, skills=[SkillTranslatableContent(id=SwiftUI, type=GLOBAL, name=SwiftUI), SkillTranslatableContent(id=RxSwift, type=GLOBAL, name=RxSwift), SkillTranslatableContent(id=Firebase, type=GLOBAL, name=Firebase), SkillTranslatableContent(id=Fastlane, type=GLOBAL, name=Fastlane), SkillTranslatableContent(id=UIKit, type=GLOBAL, name=UIKit)])
Reviews
É
Éloïse
Executive Office manager - DIAGNOLY
Reviewed on 2/4/2026
Guillaume integrated very well into our team and met our urgent needs! Great collaboration.
Frederic
iRider
Reviewed on 9/25/2025
Guillaume is very professional. Thanks to the quality of his communication and his technical skills, the project was completed as requested and within the given deadlines.
Recommendations
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Education
- Software EngineerEnsicaen2020
- Master Management & FinanceEM Normandie2020