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Senior Backend Engineer

King logo King
🇪🇸 Barcelona, Spain
🇸🇪 Stockholm, Sweden
Contract Full Time
Experience Level Senior (5+ years)
Published Date

Senior Backend Engineer in Shared Tech 

As a Senior Backend Engineer in Shared Tech, you’ll build and evolve backend services and platform capabilities that help power King’s live games at massive scale. You’ll solve complex technical problems, improve systems that serve millions of players, and help shape reliable, secure, high-performance services used across the Kingdom. You’ll work closely with engineers and partners across teams, using your technical judgment to drive solutions, improve ways of working, and contribute to products and platforms with clear impact. 

Shared Tech is the engine that powers all our live games. With the aim of providing the best possible experience for our developers and creators, as well as our hundreds of millions of players, our extensive team is integral to delivering King’s mission of Making the World Playful. Dedicated to keeping our talented game makers productive, we enable the Kingdom to create, build, launch and operate every King game, across a vast number of platforms and mobile devices. Working with many technologies and tools, our analytics and AI & ML platforms enable the instrumentation of large-scale data aggregation, experimentation, and optimization of our players’ experience. We are the stage where King games love to perform! 

Your Role Within the Kingdom 

  • Design, build, and evolve backend services, platform features, and internal tooling that support live games, developer workflows, and core service operations.
  • Lead complex technical problems from design through delivery, using sound engineering judgment to create secure, scalable, reliable solutions.
  • Improve backend architecture, engineering practices, and development processes so teams can move faster and build with confidence.
  • Collaborate with game teams, infrastructure partners, and other engineers across Shared Tech to support new functionality, platform improvements, and operational excellence.
  • Contribute across the full lifecycle of services and systems, including implementation, testing, deployment, monitoring, troubleshooting, and continuous improvement.
  • Share knowledge, support peers, and lead through technical expertise, helping others solve problems and raise the quality of the team’s output. 

You’ll typically work with a modern backend stack centered on Java and backend frameworks, alongside databases, caching, APIs, CI/CD workflows, test automation, and cloud technologies such as Google Cloud Platform. Depending on the team, you may also work with technologies such as Kafka, Kubernetes, Gradle, Terraform, React, observability tooling, and real-time or streaming systems. 

Skills to Create Thrills 

Experience 

  • Strong experience building and operating backend systems in Java, including services or platforms that need high reliability and performance.
  • Experience working with scalable systems, distributed architectures, or high-traffic environments where concurrency and performance matter.
  • Experience contributing across the full software lifecycle in a cloud-based or DevOps-oriented environment, ideally with Google Cloud Platform. 

Knowledge & Skills 

  • Strong knowledge of backend engineering fundamentals, including API design, databases, caching, testing, code quality, and object-oriented design.
  • Good understanding of scalability, concurrency, performance tuning, and the challenges of large-scale systems.
  • Confidence working with engineering tooling and modern delivery practices such as CI/CD, automation, containerized environments, and cloud infrastructure. 

Key Attributes 

  • Someone who works proactively, identifies issues early, and brings forward practical solutions.
  • A collaborative teammate who communicates clearly, works well across functions, and builds strong relationships beyond their immediate team.
  • Someone who leads through expertise: curious, quality-focused, and motivated to improve systems, share knowledge, and help others succeed. 


 

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. King games are played by more than 200 million monthly active users. 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.

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