Senior Android Developer
RebTel Networks AB · Stockholm · Tills vidare
RebTel Networks AB is hiring a **Senior Android Developer** to join its frontend team based in Stockholm. The position focuses on modernizing and evolving the Rebtel Android application for a global user base. Working in a small team alongside iOS, web, product, design, and QA specialists, the developer helps steer architecture choices and shapes the platform's future. Core responsibilities include **migrating legacy code from Java** to a modern Kotlin and Jetpack Compose stack, developing new product features, refactoring to reduce technical debt, and refining testing practices, tooling, and CI/CD pipelines. Candidates must have at least **five years of Android application development experience**, strong knowledge of Kotlin, a solid understanding of Java, and prior experience migrating legacy codebases to modern environments. Practical expertise with modern architectures—including Jetpack Compose, Coroutines, and MVVM or MVI patterns—along with the ability to deliver clean code independently is essential. Professional working proficiency in English is required. Experience with mobile CI/CD, testing, DevOps practices, or cross-platform collaboration with iOS and web teams serves as an added advantage.
What will you do?
As a Senior Android Engineer at Rebtel, you will be part of our Frontend team, helping modernize and evolve the Rebtel Android app. We are in the middle of migrating from Java to Kotlin and Jetpack Compose while continuously shipping product features to a global user base.
You’ll work in a small, empowered team where your technical decisions matter. This role is a mix of building new features, refactoring legacy code, collaborating cross-functionally, and shaping the future of our Android platform.
Areas of ownership:
- Drive the migration from Java to a modern Kotlin + Compose stack
- Refactor code that slows us down and proactively pay down tech debt
- Build and modernize Android features using Kotlin and Jetpack Compose
- Contribute to architecture decisions (MVVM/MVI, Coroutines, platform improvements)
- Collaborate closely with iOS, Web, Product, Design, and QA to ship the right solutions
- Improve tooling, testing practices, and CI/CD where needed
- Maintain and improve the overall health of the Android platform
Requirements:
- You are an excellent communicator and collaborator. We work in English, but you will hear many languages in our Stockholm office
- 5+ years of experience building Android applications
- Strong knowledge ofKotlin (and solid Java understanding)
- Experience with modern Android architecture (Jetpack Compose, Coroutines, MVVM/MVI)
- Proven ability to work independently and ship high-quality code
- You care about the code you leave behind — you ship features without cutting corners
- You prefer simple, pragmatic solutions over clever complexity
- Experience migrating legacy Android codebases to modern stacks
- Experience with mobile CI/CD, testing, or DevOps practices is a plus
- It's a plus with experience with collaborating across platforms (iOS/Web)
Why Rebtel?
Rebtel has been connecting people across borders for nearly 20 years. Today, we’re profitable, growing, and at a pivotal moment in our journey. As we enter our next phase, we’re building an organisation designed for speed, ownership, and real impact, where every role contributes directly to shaping what comes next.
This is a place with global ambition and a strong foundation, where ideas move quickly and decisions matter. You won’t get lost in layers of process or slow-moving structures. Instead, you’ll find the space to take ownership, collaborate across teams, and make meaningful contributions from day one. Based in Stockholm, we bring together a diverse, international team united by a shared purpose: to simplify the way people connect worldwide.
At Rebtel, you are the most important asset and we strive to provide a comprehensive package of benefits and perks that enhance your well-being and work experience. Here are some of the things you can expect from us:
- Pension Plan
- Health Checkups, Influenza shots and Private Medical Insurance
- Dental Insurance
- Occupational insurance
- Wellness allowance (5,000 SEK)
- Discount on gym memberships
- Bonus program
- Extra parental pay
- 30 days annual vacation
- Monday breakfasts
- Relocation Support, if you're joining us from afar, we'll assist you in making a smooth transition.
We are Rebtel. We come from all around the world to create products for anyone who has crossed a border. We believe in equal opportunity and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.