Portrait of Renaud Mathieu

Renaud Mathieu

Android • iOS • Kotlin Multiplatform

10+ years shipping products for global brands and fast‑moving startups.

Blog posts

Date

Ktor

Material 3

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
Build & ShipCompose • KMP

Build & Ship (Hands‑on)

Heavily focused on the user experience, with a touch of Kotlin Multiplatform.

Tech Leadership

Tech Leadership

Interim/part‑time Mobile Lead/Staff Engineer. Team coaching, review culture, delivery rituals.
Architecture choices and continuous improvement.

Technical Due Diligence & Audits

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.

Conferences

Jouons de la musique avec Compose Multiplatform — droidcon Berlin
Sep 04, 2025droidcon Berlin

Jouons de la musique avec Compose Multiplatform

Droidcon Berlin

Jouons de la musique avec Compose Multiplatform — DevLille
Jun 12, 2025DevLille

Jouons de la musique avec Compose Multiplatform

DevLille

Les pièges courants dans les équipes techniques et comment les éviter — Android Makers by droidcon
Apr 10, 2025Android Makers by droidcon

Les pièges courants dans les équipes techniques et comment les éviter

Android Makers

Seamless mobile real-time communication with WebRTC — devfest Toulouse
Nov 07, 2024devfest Toulouse

Seamless mobile real-time communication with WebRTC

devfest Toulouse

Seamless mobile real-time communication with WebRTC — droidcon London
Nov 01, 2024droidcon London

Seamless mobile real-time communication with WebRTC

droidcon London

Seamless mobile real-time communication with WebRTC — droidcon Lisbon
Sep 05, 2024droidcon Lisbon

Seamless mobile real-time communication with WebRTC

droidcon Lisbon

Seamless mobile real-time communication with WebRTC — droidcon SF
Jun 07, 2024droidcon SF

Seamless mobile real-time communication with WebRTC

droidcon SF

Creating a joystick in Jetpack Compose using Gesture API — Android Makers by droidcon
Apr 26, 2024Android 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 — devfest Ireland
Dec 02, 2023devfest Ireland

Creating a joystick in Jetpack Compose using Gesture API

devfest Ireland

I have a date — devfest Toulouse
Nov 16, 2023devfest Toulouse

I have a date

devfest Toulouse

Live-coding Ktor — devfest Strasbourg
Nov 15, 2023devfest Strasbourg

Live-coding Ktor

devfest Strasbourg

I have a date — droidcon London
Oct 26, 2023droidcon London

I have a date

Droidcon London

Discovering Material 3 for Android, I have a date — droidcon Berlin
Jul 05, 2023droidcon Berlin

Discovering Material 3 for Android, I have a date

Droidcon Berlin

I have a date — Android Makers by droidcon
Apr 27, 2023Android Makers by droidcon

I have a date

Android Makers

Live-coding Ktor — MiXiT
May 24, 2022MiXiT

Live-coding Ktor

MiXit

Live-coding Ktor — Android Makers by droidcon
Apr 28, 2022Android Makers by droidcon

Live-coding Ktor

Android Makers

Live-coding Ktor — Fosdem
Feb 05, 2022Fosdem

Live-coding Ktor

Fosdem