Freelancer profile translated to English.
Back to original languageAbout Timothé
🚀 Expert in Mobile Development & Code Optimization
I am a freelance mobile developer with over 9 years of experience, specializing in iOS and Android applications with .NET MAUI, Flutter, SwiftUI, and Kotlin/Jetpack Compose. I design and optimize high-performance applications, conduct code audits, and provide training and consulting to help teams adopt best practices.
🔹 My Services:
✅ Mobile Development – Modernizing applications with scalable and maintainable architectures
✅ Code Audits & Optimization – Improving performance, security, and robustness
✅ Training & Consulting – Guiding teams to adopt best practices in mobile development and functional programming
As a co-creator and lead maintainer of Fabulous, an open-source mobile UI framework for .NET & F#, I have been recognized as a Microsoft MVP and F# Community Hero. I work remotely worldwide to design high-quality, efficient, and scalable mobile applications.
🌍 Based in Paris | Remote work worldwide
French
Native or bilingual
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- NatureMaprFreelance Mobile DeveloperENVIRONMENTALNovember 2023 - Today (2 years and 7 months)Canberra, AustraliaEnhanced NatureMapr Data Collection App, used by 2,000+ users on iOS andAndroid. I worked closely with the client to ensure the app stayed focused on itscore purpose while avoiding overloading it with features that are better suited forthe website. The redesigned version with new features was released flawlessly.
- Conducted a full code audit and updated dependencies for better compatibility.
- Migrated from Xamarin.Forms to Fabulous for .NET MAUI with a new UI/UX.
- Integrated native code (iOS & Android SDKs) for camera, microphone, and photo gallery features.
- Optimized app architecture and profiled performances.
- Overhauled CI/CD pipeline, improving builds, performance, and real-time issue resolution.
Tech Stack: F#, .NET 9, Fabulous (iOS 12+, Android 21+), Azure DevOps (CI/CD), Firebase (Analytics, Crashalytics, App Distribution), Figma - FabulousLead Maintainer & Core DeveloperJune 2018 - Today (8 years)Led Fabulous, an open-source declarative UI framework for .NET inspired by SwiftUI, for over 6 years. I guided it from proof of concept to Fabulous 3.0, evolving it into a fully modular framework with a strong focus on developer experience, seamless integration, and official support for .NET MAUI and Avalonia UI.
- Led the development of Fabulous, shaping its long-term vision and growth.
- Designed core components, ensuring native support for state-based UI.
- Redesigned Fabulous DSL in v2.0 for improved, intuitive developer experience.
- Refactored Fabulous for easy integration with different UI frameworks.
- Actively mentored the community, providing support to developers and speaking at meetups.
- Recognized as a Microsoft MVP and F# Community Hero for contributions to Fabulous and the F# ecosystem.
Tech Stack: F#, .NET, Xamarin.Forms, .NET MAUI, AvaloniaUI (iOS, Android), GitHub (CI/CD), NuGet dependency manager - D-Edge Hospitality SolutionsFreelance Software EngineerApril 2024 - January 2025 (9 months)Paris, FranceModernized two distinct mission-critical backend services, supporting thousands of hotels worldwide and 400+ distributors, ensuring seamless data flow between PMS and travel distributors like Booking.com and Expedia.
- Filtering Service: Overhauled a critical high-availability service at the start of the pipeline, filtering out 98% of data to prevent system overload and ensure smooth data flow for thousands of hotels.
- Logging System: Led the migration of a complex and sensitive logging system to AWS (SQS & S3), delivering a proof-of-concept and extensive documentation (ADR), ensuring low latency, cost efficiency, and high resiliency while handling 2 billion logs/month.
- Collaborated with infrastructure, business, and tech leads to plan the AWS migration, ensuring a smooth transition while maintaining performance and controlling costs.
- Delivered a fault-tolerant architecture in .NET 9.0 to handle vast data volumes with minimal overhead.
- Ensured knowledge transfer for both services through comprehensive documentation and team sessions for long-term maintainability.
Tech Stack: C#, F#, .NET 9, Dependency Injection, MSMQ, AWS (SQS, S3), GitLab (CI/CD), Grafana, Kibana
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Education
- Master's Degree in Computer ScienceSUPINFO International University2009