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Craft:

Technology & Development

Job Description:

Build the foundations that help our teams create.

We’re looking for a Senior Backend Java Developer to help build and evolve shared backend platforms at King. Our technology provides services and capabilities that internal teams rely on to develop games, tools and services.

Building platforms used across multiple teams brings interesting engineering challenges: handling high traffic, designing flexible APIs and evolving systems while keeping them reliable. You’ll work on Java backend services that solve common problems, making it easier for teams to build, integrate and deliver new capabilities.

Your role within our Kingdom

As a senior backend developer, you’ll help design, build and operate shared backend platforms and services. You’ll work across established systems and new capabilities, balancing the needs of individual teams with solutions that are reusable and maintainable over time.

You’ll take ownership from the first technical discussion through implementation, rollout and production support. Along the way, you’ll work closely with fellow engineers, product partners and the teams integrating our services. Your experience will help shape technical decisions,



simplify complex problems and improve how we build and operate our platforms.

You will, among other things…

- Develop and maintain Java backend services and shared platform capabilities used by teams across King.
- Design reliable APIs and reusable components that make integration straightforward for other developers.
- Improve the performance, scalability and resilience of systems operating under significant load.
- Work with internal teams to understand their needs and turn common requirements into practical platform solutions.
- Investigate production issues and improve monitoring, troubleshooting and operational reliability.
- Evolve existing architecture, manage compatibility and reduce technical debt through incremental improvements.
- Build security and quality into everyday engineering decisions.
- Collaborate through code reviews, technical discussions and knowledge sharing.

Skills to create thrills

- Strong hands-on experience in backend software development, with a focus on core Java.
- Practical experience designing, implementing and debugging multithreaded and concurrent Java systems.
- Experience building and operating distributed systems under significant load.
- A good understanding of performance tuning and scalability.
- Experience designing APIs and evolving services used by other teams.
- A commitment to readable code, meaningful testing and maintainable software.
- A DevOps mindset,



with ownership of services throughout their lifecycle.
- Clear communication and a collaborative approach to discussing solutions, sharing feedback and making technical decisions.

You’re curious about how systems work and comfortable investigating problems without an obvious answer. You can weigh trade-offs, explain your reasoning and help a team move forward. You care about making services reliable, easy to integrate with and straightforward for other developers to use.

Bonus points

- Experience developing shared platforms, frameworks or libraries used by multiple teams.
- Experience with Google Cloud Platform or other cloud providers.
- Experience with data storage, caching or messaging systems at scale.
- Experience improving developer tooling, documentation or integration workflows.

You don’t need a background in gaming to join us. We welcome experience from other industries and the different perspectives it brings.

Join us to build the platforms that help teams across King develop reliable games, tools and services.

About King

With a mission of Making the World Playful, King is a leading interactive entertainment company for the mobile world with more than 20 years of history of delivering some of the world’s most iconic games in the mobile gaming industry, including the world-famous Candy Crush franchise, as well as other mobile titles such as Farm Heroes Saga. Around 200 million people play a King game every month. King, part of Microsoft (NASDAQ: MSFT), has Kingsters in Stockholm, Malmö, London, Barcelona, Berlin, Dublin, San Francisco, New York, Los Angeles and Malta. More information can be found at King.com or by following us on LinkedIn and @lifeatking on Instagram.

📌 Senior Backend Java Developer - Foundations (Barcelona)
🏢 King. Com
📍 Barcelona