Lab49 is a global consultancy focused on delivering innovative technology solutions for the financial services industry. We work with leading investment banks, asset managers, and financial institutions to solve complex business and technology challenges.
The Role
We are looking for a hands-on Android Principal Engineer to provide technical leadership for Android engineering across key workstreams. You will be responsible for technical direction, architecture, engineering standards, and delivery, while remaining deeply involved in implementation and code reviews.
This is a senior individual contributor role requiring strong technical depth, leadership, and the ability to influence engineering decisions across teams.
Key Responsibilities
Lead the technical design, architecture, and implementation of complex Android applications.
Define Android engineering standards, development practices, and architectural patterns.
Drive technical delivery across Android workstreams and ensure high-quality production outcomes.
Conduct detailed code reviews and provide technical guidance to engineers.
Mentor and enable Android engineers across the team.
Partner with architects, product managers, designers, and backend engineers to deliver scalable solutions.
Drive application performance, security, reliability, and maintainability.
Contribute to CI/CD, release engineering, and engineering automation.
Identify and resolve complex technical and architectural challenges.
Required Skills & Experience
10+ years of professional software engineering experience, with significant experience in Android development.
Strong expertise in Kotlin, Android SDK, and Jetpack Compose.
Deep understanding of MVVM/MVI and modern Android architecture.
Strong experience with Coroutines, REST APIs, and JSON.
Experience designing scalable and maintainable mobile applications.
Strong understanding of mobile application security and performance.
Experience with CI/CD and modern software engineering practices.
Strong code review, technical leadership, and mentoring capabilities.
Ability to work effectively with senior stakeholders and cross-functional engineering teams.
What You’ll Bring
Strong hands-on engineering mindset with architectural depth.
Ability to lead through technical influence rather than hierarchy.
Strong problem-solving and communication skills.
Experience working in complex, enterprise-scale technology environments.
Skills Required
- 10+ years of professional software engineering experience
- Significant professional Android development experience
- Strong expertise in Kotlin
- Strong expertise in Android SDK
- Strong expertise in Jetpack Compose
- Deep understanding of MVVM and MVI
- Experience with modern Android architecture
- Strong experience with Coroutines
- Strong experience with REST APIs and JSON
- Experience designing scalable and maintainable mobile applications
- Strong understanding of mobile application security and performance
- Experience with CI/CD and modern software engineering practices
- Strong code review, technical leadership, and mentoring capabilities
- Ability to work with senior stakeholders and cross-functional engineering teams
- Strong hands-on engineering mindset with architectural depth
- Strong problem-solving and communication skills
- Experience in complex, enterprise-scale technology environments
What We Do
Serving Luxembourg's IT needs since 2002, ION Group has focused its activities on 3 pillars: ION Home: IT services for home users. - Computer repair and maintenance - Network Setup - Internet Setup - Email and Hosting Services ION Pro: Maintenance for small and medium businesses - Server maintenance and setup - Network configuration and security - Workstation - Server and services hosting and housing ION Development - Website design and development - Custom application development (Web, Mobile, iOS, Android) - OpenSource software modifications
