Mobile Application Engineer – iOS & Android (Kotlin Multiplatform)

About the role

We are looking for a Mobile Application Engineer to lead the adoption of a Kotlin Multiplatform strategy that unifies iOS and Android development. You will help build a scalable, high‑performance solution while maintaining consistency across both platforms in a modern, collaborative environment.

Key responsibilities

• Design and implement Kotlin Multiplatform modules to share business logic between iOS and Android.
• Develop native UI components using SwiftUI and Jetpack Compose.
• Maintain CI/CD pipelines and ensure code quality, security, and performance.
• Collaborate with design and product teams to deliver a seamless user experience.
• Drive best practices, continuous improvement, and knowledge sharing within the team.

Required profile

• Minimum 3 years of professional experience in mobile application development (native or Kotlin Multiplatform).
• Strong expertise in Kotlin, Swift, SwiftUI, Jetpack Compose, Koin, REST APIs, and CI/CD pipelines.
• Solid understanding of secure coding practices and OWASP principles.
• Experience building cross‑platform mobile apps with shared business logic.
• Fluency in English; additional languages (French, German, Luxembourgish) are a plus.

Required skills

• Kotlin
• Swift
• SwiftUI
• Jetpack Compose
• Koin
• REST APIs
• CI/CD pipelines
• OWASP security principles
• OpenAPI (optional)
• RenovateBot (optional)
• Trivy (optional)
• Docker (optional)
• Figma (optional)
• Automated, screenshot and performance testing
• Basic Objective‑C knowledge

What we offer

• Permanent contract providing stability and security.
• Individual profit‑sharing model linked to the value you create.
• Personalized coaching and a dedicated training plan to develop entrepreneurial skills.
• Access to a high‑quality expert network through technical competence cells.
• Creative space in the Entrepreneurial Lab to explore new ideas and potential start‑up projects.