Lead Mobile Engineer

About the role

We are seeking a Lead Mobile Engineer to drive the evolution of our mobile applications in Brussels. The role combines technical leadership with hands‑on development, focusing on Flutter while also leveraging native and cross‑platform expertise.

Key responsibilities

• Define and evolve the mobile architecture, making decisions on structure, performance and scalability.
• Develop and improve Flutter applications and ensure high code quality through testing and best practices.
• Review code, mentor engineers and provide technical guidance across the team.
• Contribute to CI/CD pipelines and the overall delivery process.
• Collaborate with backend and product teams on design and implementation.
• Identify technical debt and propose pragmatic solutions.

Required profile

• Strong professional experience building and shipping mobile applications with significant technical ownership.
• Solid mobile engineering fundamentals and ability to make architectural decisions.
• Hands‑on mindset, comfortable remaining an active developer.
• Experience with CI/CD, performance, scalability, observability and security considerations.
• Familiarity with native, cross‑platform or multiplatform ecosystems such as Kotlin, Swift, React Native or Kotlin Multiplatform.

Required skills

• Flutter and Dart.
• Kotlin and Swift.
• React Native or Kotlin Multiplatform.
• TypeScript and FastAPI (backend integration).
• Google Cloud Platform.
• CI/CD tooling.