Android Makers by droidcon Offline-first should be the norm
Replay Apr 09, 2026
Renaud Mathieu Paris, France · remote-friendly
I help teams ship polished mobile apps, faster.
Freelance mobile lead. Android, iOS, Kotlin Multiplatform.
Blog posts
Writing about Android, Kotlin Multiplatform, and how teams ship.
Services
Hands-on builder, trusted tech leader, and pragmatic auditor. Android & Kotlin as the foundation.
Start faster
Ship polished mobile apps, faster
Hands-on engineering, pragmatic leadership, and audits that unlock momentum.
Tell me about your project Store-ready
Native & KMP
CI/CD
Observability
Compose • KMP
Build & Ship (Hands-on)
Heavily focused on the user experience, with a touch of Kotlin Multiplatform.
Tech Leadership
Interim/part-time Mobile Lead/Staff Engineer. Team coaching, review culture, delivery rituals.
Architecture choices and continuous improvement.
Technical Due Diligence & Audits
Codebase health, risks & roadmap. Store readiness, privacy, push/notifications. Migration plans that de-risk and accelerate.
Android • iOS
Offline-first, performance, polish.
Automation
CI/CD hygiene, testing strategy.
Ventures
Beyond solo work: the agency I co-founded and what we're building.
Agency
Doppio Lab
Co-founder of Doppio Lab, a Paris-based agency crafting premium mobile experiences for iOS, Android, and the backends that power them.
Work with us Private beta
Local Legends
Your trip. Your vibe.
We're building a privacy-first travel planner that crafts day-by-day itineraries matched to your style and pace.
locallegends.fr ↗ Open alpha
Mouture
On-device AI. Zero cloud.
A minimal Android launcher with an AI assistant that runs entirely on your phone — no account, no telemetry, nothing ever leaves the device.
mouture.app ↗Conferences
30+ talks across Europe and the US since 2017.
Oct 30, 2025 droidcon London
Common pitfalls in engineering teams and how to avoid them
Apr 10, 2025 Android Makers by droidcon
Les pièges courants dans les équipes techniques et comment les éviter
devfest Toulouse Seamless mobile real-time communication with WebRTC
Replay Nov 07, 2024
Nov 01, 2024 droidcon London
Seamless mobile real-time communication with WebRTC
droidcon London Seamless mobile real-time communication with WebRTC
Nov 01, 2024
Sep 05, 2024 droidcon Lisbon
Seamless mobile real-time communication with WebRTC
droidcon Lisbon Seamless mobile real-time communication with WebRTC
Sep 05, 2024
Jun 07, 2024 droidcon SF
Seamless mobile real-time communication with WebRTC
droidcon SF Seamless mobile real-time communication with WebRTC
Jun 07, 2024
Apr 26, 2024 Android Makers by droidcon
Creating a joystick in Jetpack Compose using Gesture API
Android Makers by droidcon Creating a joystick in Jetpack Compose using Gesture API
Slides Apr 26, 2024
Dec 02, 2023 devfest Ireland
Creating a joystick in Jetpack Compose using Gesture API
devfest Ireland Creating a joystick in Jetpack Compose using Gesture API
Dec 02, 2023
Nov 16, 2023 devfest Toulouse
I have a date
devfest Toulouse I have a date
Nov 16, 2023
Nov 15, 2023 devfest Strasbourg
Live-coding Ktor
devfest Strasbourg Live-coding Ktor
Nov 15, 2023
droidcon London I have a date
Replay Oct 26, 2023
Android Makers by droidcon I have a date
Replay Apr 27, 2023
MiXiT Live-coding Ktor
Replay May 24, 2022
Android Makers by droidcon Live-coding Ktor
Replay Apr 28, 2022
Fosdem Live-coding Ktor
Replay Feb 05, 2022
2020 Virtual Android Makers
Virtual Android Makers
Virtual Android Makers Virtual Android Makers
2020
2019 DevFest Brest
Designing effective navigation in Android
DevFest Brest Designing effective navigation in Android
2019
2019 Workshop Google
Quickly build your app alone with Firebase
Workshop Google Quickly build your app alone with Firebase
2019
2018 Android Makers
Quickly build your app alone with Firebase
Android Makers Quickly build your app alone with Firebase
2018
2018 Lille Android User Group
How to effectively scan barcodes on Android
Lille Android User Group How to effectively scan barcodes on Android
2018
2017 Android Makers
Android Makers
Android Makers Android Makers
2017
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