iOS Developer

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 iOS 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

• Work with a team of iOS and Android engineers, designers, QAs, and product owners to deliver high-quality features.
• Develop features, refactor and modernize our app, and maintain a high-quality codebase.
• Build and maintain testable, maintainable, and scalable code aligned with iOS best practices.
• Take ownership of your work while contributing to a collaborative, trust-based team culture.
• Enhance and expand our comprehensive automated test suite.
• Maintain and improve our app infrastructure and CI/CD pipelines.
• Participate in code reviews, knowledge sharing, and collaborative problem-solving with your teammates.
• Take part in coordinating app releases, shared in rotation across the mobile team.
  
  
  

Who You Are

• Several years of professional iOS app development experience, preferably on apps with a large user base.
• Skilled in leveraging Apple frameworks to build reliable and efficient applications.
• Strong understanding of architectural patterns and the ability to apply them in complex projects to ensure scalability and maintainability.
• Proficient in Swift, with strong experience in both UIKit and SwiftUI.
• Care about writing clean, maintainable, and well-documented code.
• Experience writing automated tests, including unit and snapshot tests.
• Prior experience with CI/CD tools, with a focus on improving and streamlining the build, test, and deployment process.
• Genuine interest in staying up to date with the latest developments in the iOS ecosystem and continuously improving your craft.
• Strong attention to detail.
• Excellent communication skills in English, with the ability to collaborate effectively with various teams.
• Prior experience with Google Firebase, MapKit, and/or StoreKit.
  
  
  

About Flightradar24

With over 4 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
  
  
  

Flightradar24 started as a hobby project in 2006 when two Swedish aviation geeks decided to build a network of ADS-B receivers in Northern and Central Europe. In 2009 we opened up the network, and made it possible for anyone with an ADS-B receiver to upload data to the network. Many parts of the world were quickly covered, but the quest to provide global ADS-B coverage is still ongoing.

Flightradar24 at a glance

• Largest ADS-B network in the world with over 55,000 connected receivers
• 5+ million users per day
• 100+ million app downloads