Android Developer

Flightradar24; Stockholms kommun; On-site; SEK 900,000 - 1,150,000; Full time

Benefits offered by this job

Free beverages, fruit & snacks

Modern office in central Stockholm

International team with +30 nationalit

Job summary

Flightradar24 is seeking a senior Android Engineer to join our Stockholm mobile team. You'll shape mobile architecture, mentor others, and build features for millions of aviation enthusiasts.

You should be skilled in Kotlin, Jetpack Compose, and modern Android architectures (MVVM, Clean, modularization). Strong testing and CI/CD experience is expected, with collaboration across multiple engineering disciplines.

Qualifications

• Strong experience shipping user-facing Android apps.
• Proficient in Kotlin with modern Android frameworks.
• Experience with MVVM, Clean Architecture, and modularization.

Responsibilities

• Build and deliver features for the Android app used by millions of users.
• Write clean, maintainable Kotlin code with modern Android tooling.
• Collaborate with iOS, design, QA, backend, and product teams to ensure great UX.
• Contribute to architecture decisions and modular design improvements.
• Mentor junior engineers and participate in code reviews.

Skills

Kotlin

Android

Jetpack Compose

Coroutines

MVVM

Modular architecture

Testing

CI/CD

Code reviews

Tools

Gradle

GitHub Actions

Codemagic

Firebase App Distribution

Firebase

Job description

Flightradar24 is one of Stockholm’s most successful growth-stage tech companies, with over 5 million daily users across our mobile and web platforms. Our app is the world’s most popular flight tracking service, consistently ranking at the top of the App Store and Google Play charts.

Alongside our consumer-facing products, we provide a wide range of commercial services trusted by leading airlines, airports, and aviation organizations worldwide.

We are looking for a highly skilled senior Android Engineer to join our mobile team in Stockholm. You’ll work hands-on at architectural scale - shaping our mobile architecture, guiding technical decisions, mentoring others, and building new features for millions of aviation enthusiasts. At Flightradar24, you’ll join a diverse, international team with over 30 nationalities represented, working together to push the boundaries of aviation data.

Note that this position requires that you are able to work in Stockholm, Sweden. Relocation is not offered for this role.

What you’ll do

• Build and deliver new features for our Android app used by millions of users worldwide.
• Write clean, maintainable, and testable Kotlin code using modern Android frameworks and tools.
• Collaborate with iOS and Android engineers, designers, QAs, backend engineers and product owners to create seamless user experiences.
• Contribute to architecture discussions and help evolve our app toward a modular, scalable design.
• Continuously refactor and modernize the codebase using the latest Android technologies and libraries.
• Strengthen our automated testing and CI/CD pipelines to ensure stable, reliable, and fast releases.
• Participate in code reviews, share knowledge, and mentor less-experienced engineers.
• Take part in release coordination and ensure smooth deployment processes.

Who you are

• Experienced Android engineer with a proven record of shipping high-quality, user-facing apps.
• Expert in Kotlin, with strong understanding of Jetpack Compose, Coroutines, and modern Android architecture (MVVM, Clean Architecture, modularization).
• Comfortable working with Jetpack libraries, Material Design, and the latest Android SDKs.
• Passionate about code quality, testing, and maintainability.
• Experienced with unit, UI, and integration testing (JUnit, Espresso, MockK).
• Familiar with CI/CD systems (Gradle, GitHub Actions, Codemagic, Firebase App Distribution).
• Proactive, curious, and eager to adopt new tools and best practices.
• Collaborative communicator who values teamwork, feedback, and shared success.
• Bonus: experience with Firebase, Maps/Location APIs, or Store integration (Play Store, billing).

About Flightradar24

With over 5 million daily users, Flightradar24 is the world’s most popular flight tracking service. Our app regularly tops the App Store and Google Play Travel charts. We also offer a wide range of commercial services and our customers include many of the biggest names in aviation.

We're constantly adding new services and improving existing products. To help us meet those challenges, we're looking for creative, collaborative and tech-savvy applicants to join us.

Benefits of working at Flightradar24 include:

• Opportunity to impact a service with millions of end users from all around the world
• Flexible and social work environment with free beverages, fruit, and snacks
• Modern office in the heart of beautiful downtown Stockholm, Sweden
• Being part of a diverse team with +30 nationalities and 6 continents represented with English being our main language