At FDJ UNITED, we don't just follow the game, we reinvent it.

FDJ UNITED is one of Europe’s leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition. We set new standards, proving that entertainment and safety can go hand in hand. Here, you’ll work alongside a team of passionate individuals dedicated to delivering the best and safest entertaining experiences for our customers every day.

We’re looking for bold people who are eager to succeed and ready to level-up the game. If you thrive on innovation, embrace challenges, and want to make a real impact at all levels, FDJ UNITED is your playing field.

Join us in shaping the future of gaming. Are you ready to LEVEL-UP THE GAME?

We are looking for an iOS developer with strong Swift and SwiftUI experience to work on KSP,



our native Sportsbook library embedded in the Unibet Sports iOS App.

What you’ll work on
- Build and evolve SwiftUI feature modules across the KSP stack
- Integrate KSP into the Sports host app via shared contracts
- Design and maintain modular SPM APIs, keeping module boundaries clean and public surfaces intentional
- Implement real-time sportsbook experiences: odds/live data flows, navigation, analytics, localization, and media
- Own quality end-to-end: unit tests, SwiftUI view tests, lint/format, CI feedback, and PR hygiene
- Collaborate with product, design, QA, and other platform teams on high-impact sportsbook journeys

Our tech stack (what you’ll use day to day)
- Language & platform: Swift 5.10+, SwiftUI, iOS 17+, Xcode
- Architecture: Modular Swift Packages, feature-oriented modules composed through an integration layer
- Dependency injection: Factory (Container-based DI, test/preview-friendly registrations)
- Concurrency & reactivity

📌 iOS Senior Engineer (Madrid)
🏢 FDJ UNITED
📍 Madrid