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I am a mobile and AI engineer with over 15 years of experience building apps for iOS and Android. I currently lead a mobile team at a prominent fintech firm, delivering high-stakes products and architecting scalable platforms for discerning clients. I am proficient in Swift 6.2, SwiftUI, Jetpack Compose, and modern AI techniques, including prompt engineering and context engineering. I enjoy mentoring teams, launching polished apps, and integrating generative AI to create intelligent user experiences.…I am a mobile and AI engineer with over 15 years of experience building apps for iOS and Android. I currently lead a mobile team at a prominent fintech firm, delivering high-stakes products and architecting scalable platforms for discerning clients. I am proficient in Swift 6.2, SwiftUI, Jetpack Compose, and modern AI techniques, including prompt engineering and context engineering. I enjoy mentoring teams, launching polished apps, and integrating generative AI to create intelligent user experiences.

Clement Duest

App Developer, Front-End Developer, Back-End Developer, +4

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I am a mobile and AI engineer with over 15 years of experience building apps for iOS and Android. I currently lead a mobile team at a prominent fintech firm, delivering high-stakes products and architecting scalable platforms for discerning clients. I am proficient in Swift 6.2, SwiftUI, Jetpack Compose, and modern AI techniques, including prompt engineering and context engineering. I enjoy mentoring teams, launching polished apps, and integrating generative AI to create intelligent user experiences.…I am a mobile and AI engineer with over 15 years of experience building apps for iOS and Android. I currently lead a mobile team at a prominent fintech firm, delivering high-stakes products and architecting scalable platforms for discerning clients. I am proficient in Swift 6.2, SwiftUI, Jetpack Compose, and modern AI techniques, including prompt engineering and context engineering. I enjoy mentoring teams, launching polished apps, and integrating generative AI to create intelligent user experiences.

Available to hire

I am a mobile and AI engineer with over 15 years of experience building apps for iOS and Android. I currently lead a mobile team at a prominent fintech firm, delivering high-stakes products and architecting scalable platforms for discerning clients.

I am proficient in Swift 6.2, SwiftUI, Jetpack Compose, and modern AI techniques, including prompt engineering and context engineering. I enjoy mentoring teams, launching polished apps, and integrating generative AI to create intelligent user experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

French

Fluent

English

Fluent

German

Intermediate

Spanish; Castilian

Intermediate

Work Experience

Lead Mobile & AI Engineer at Pictet Technologies

May 1, 2023 - Present

Created the mobile department from the ground up and now leads a team of eight developers across iOS and Android; Architected and delivered a new-generation fintech platform using Swift 6.2 and Kotlin/Jetpack Compose; Launched multiple apps on App Store and Google Play; Managed lifecycle from concept to post-release monitoring; Integrated AI-generated code into production and coached colleagues on prompt engineering and context engineering.

Lead Mobile Developer at SMAG (Freelance)

May 31, 2023 - October 14, 2025

Built field management applications using SwiftUI and Jetpack Compose; Migrated early versions from SwiftUI to Jetpack Compose for subsequent releases; Delivered high-quality UX and launched apps to App Store and Google Play.

Senior Mobile Developer at ARHS Spikeseed / Fleetbot S.A.

September 30, 2020 - October 14, 2025

Updated Fleetback app design and enabled card dealer ships to send personalized messages with client and vehicle data; Designed Odito app's customizable audit forms with complex conditional logic; Built React Native components such as circular gauges with dynamic angular gradients; Improved build performances by moving from CocoaPods to Carthage.

Middle Mobile Developer at Airbox S.A. (Foobot)

April 30, 2017 - October 14, 2025

Built field management apps with SwiftUI and Jetpack Compose; Migrated early versions from SwiftUI to Jetpack Compose; Delivered high-quality UX and launched apps to App Store and Google Play.

Junior Mobile Developer at Home Group S.A.

August 1, 2014 - October 14, 2025

Developed a real-estate catalog with offline favorites; built an appointments scheduler for agents with offline synchronization.

Senior Mobile Developer at ARHS Spike S.A. / Fleetback S.A.

September 1, 2020 - October 14, 2025

Updated Fleetback app design and enabled card dealer ships to send personalized messages with client and vehicle data; designed Otidoo app’s customizable audit forms with complex conditional logic; built merging, duplication and customization features while improving stability and performance; developed React Native components.

Senior Mobile Developer at CAT-AMANIA Luxembourg

April 1, 2022 - October 14, 2025

Developed and maintained new features for web banking and professional investor applications; produced functional and technical analyses.

Lead Mobile Developer at SMAG (Freelance)

May 1, 2023 - October 14, 2025

Created the mobile department from the ground up and now lead a team of eight developers across iOS and Android. Architected and delivered a new-generation fintech platform serving high-net-worth clients using Swift 6.2 and Kotlin/Jetpack Compose; launched multiple apps to the App Store and Google Play; managing the entire lifecycle from concept to post-release monitoring; integrated AI-generated code into production and coached colleagues on prompt engineering and context engineering.

Senior Mobile Developer at Europe News (Freelance)

May 1, 2023 - October 14, 2025

Developed mobile applications for news streaming and content delivery; implemented features for real-time news updates and video playback.

Lead Mobile & AI Engineer at Pictet Technologies AG (Luxembourg) / S.A.G.

May 1, 2023 - Present

Created the mobile department from the ground up and now lead a team of eight developers across iOS and Android; Architected and delivered a new-generation fintech platform serving high-net-worth clients using Swift 6.2 and Kotlin/Jetpack Compose; Launched multiple apps to the App Store and Google Play, managing the entire lifecycle from concept to post-release monitoring; Integrated AI-generated code into production and coached colleagues on prompt engineering and context engineering; Won the 2024 Pictet Technologies AI Coding Challenge with a mobile app combining advanced prompt engineering with object detection.

Senior Mobile Developer at Euro News (Freelance)

May 31, 2023 - October 14, 2025

Built mobile applications for news streaming; implemented features for real-time updates and video playback; migrated early versions from SwiftUI to Jetpack Compose/Kotlin for subsequent releases; delivered high-quality UX to App Store and Google Play.

Senior Mobile Developer at CAT-AMANIA

April 30, 2022 - October 14, 2025

Developed and maintained new features for web banking and professional investor applications; produced functional and technical analyses; ensured security and compliance.

Senior Mobile Developer at ARHS Spike S.A. / Fleetback S.A.

September 30, 2020 - October 14, 2025

Updated Fleetback app design and enabled dealership card features to send personalized messages with client and vehicle data; designed Odito app's customizable audit forms with complex conditional logic; built merging, duplication and customization features while improving stability and performance; developed React Native components such as circular gauges with dynamic angular gradients; improved build performance by moving from CocoaPods to Carthage.

Middle Mobile Developer at Airbox Labs S.A. (Foobot)

April 30, 2017 - October 14, 2025

Implemented onboarding and device pairing via TCP/IP, Wi‑Fi and Bluetooth protocols; engineered real-time data retrieval through RabbitMQ queues connected to AWS SQS; built push notifications service to alert users of elevated indoor pollution with mitigation advice.