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?

As a senior software engineer, you are a core team member on whom the team relies to consistently deliver high quality solutions. You take

ownership to help the team reach their goals, including actively sharing knowledge and providing feedback. You can identify and initiate activities to address improvement areas within the team. With a mature view on technical governance you have a long term perspective of the team's components

and applications.

Technical Excellence & Architecture

• Lead the design and implementation of complex Android features and shared modules across multiple brands.
• Drive architectural decisions, ensuring modularity, scalability, and maintainability of the Android codebase.
• Evolve and refine our use of Kotlin, Jetpack Compose, Coroutines / Flow, and modern Android development patterns.
• Partner with architects and senior engineers across domains to shape long-term technical direction.

Ownership Across the Lifecycle

• Fully own features end-to-end: design, development, testing, deployment, monitoring, and iteration.
• Proactively identify performance, stability, and architectural improvements, and drive initiatives to address them.
• Lead incident resolution for Android-related issues, guiding root-cause analysis and long-term fixes.

Quality & Testing Leadership

• Advocate and implement advanced testing strategies: Unit, UI, integration, and performance tests.
• Collaborate with QA automation engineers to evolve shared frameworks and CI/CD quality gates.
• Ensure testing, observability, and monitoring are first-class citizens in the development process.

Collaboration, Mentoring & Influence

• Coach mid-level and junior engineers through code reviews, pairing sessions, and technical design discussions.
• Work closely with Product Owners and designers to influence requirements, scope, and user experience early on.
• Act as a strong voice in improving team workflows, processes, and engineering best practices.

Core Technical Skills

• Extensive experience building production-grade Android applications using Kotlin.
• Strong command of Jetpack Compose, Android Jetpack, and modern UI/state management patterns.
• Deep understanding of architectural patterns (MVVM, Clean Architecture, modularisation, multi-module setups).
• Advanced experience writing Unit Tests, UI Tests (Espresso, Compose UI tests), and scaling automated testing suites.
• Strong knowledge of Android performance, memory management, profiling, and debugging tools.
• Proven experience integrating with backend APIs and managing complex data flows.
• Experience with CI/CD pipelines and Android tooling such as Gradle, GitHub Actions, Jenkins, Fastlane, or similar.

Leadership & Professional Skills

• Ability to influence architecture and long-term technical strategy.
• Strong mentorship skills; you help others grow and lead by example.
• Skilled in balancing product delivery with long-term maintainability and quality.
• Excellent communication skills, with the ability to explain complex technical concepts to different audiences.
• Comfortable working in a fast-paced environment with high ownership and autonomy.