Backend Developer | Catalog Games

King; Barcelona; Presencial; EUR 60.000 - 85.000; Jornada completa

Descripción de la vacante

King is seeking a mid-level Java backend developer to join the Catalog Games team in Barcelona to build and improve the technology behind our games. You will develop game features, services, tools, and systems while collaborating across disciplines, contributing through design, implementation, testing, deployment, and monitoring.

You will own complete features or components, work autonomously, break work into manageable tasks, and balance delivery speed with quality, maintainability, and

Formación

• Strong Java development skills and CS fundamentals.
• Experience with databases, web development, UNIX environments, and production backend systems.
• Design and implement medium-sized systems within larger architectures.
• Work with established codebases and improve systems pragmatically.
• Experience with automated testing, code reviews, monitoring, debugging, incident investigation, and production support.
• Take ownership, estimate and plan work, communicate clearly, and collaborate with teammates.
• Balance quality, maintainability, reliability, and delivery speed.
• Share knowledge and improve documentation.
• Understand team goals and how engineering adds product value.
• Fluency in English.

Responsabilidades

• Develop game backend features, services, tools, and systems.
• Collaborate across disciplines from design to deployment and monitoring.
• Own complete features or components and manage tasks end-to-end.
• Contribute to shared platforms, tools, and Java server frameworks.
• Communicate progress, plans, risks, and problems clearly; support production services.
• Help improve documentation, processes, and ways of working.

Conocimientos

Java backend

CS fundamentals

Concurrency

Scalability

Databases

UNIX

Testing

Production support

Ownership

English

Herramientas

CI/CD

Jenkins pipelines

Google Cloud

Descripción del empleo

Job Description

We're looking for a

Craft

Technology & Development

Job Description

We're looking for a Java backend developer to join our Catalog Games team and help build and improve the technology behind our games.

You'll develop game features, services, tools, and systems while collaborating with people across different disciplines. You'll contribute throughout the lifecycle of our backend systems, from design and implementation to testing, deployment, monitoring, and ongoing improvement.

We're looking for a mid-level developer who enjoys solving challenging technical problems and is comfortable working with large-scale, real-time systems and established codebases. You'll take ownership of complete features or components, work autonomously, break work into manageable tasks, and balance delivery speed with quality, maintainability, and reliability.

Your Role Within Our Kingdom

You'll work as part of a highly capable, collaborative team developing systems that improve game development and support features across Catalog Games' titles. You'll help deliver reliable, maintainable technology that supports great player experiences.

Our tech team serves as a central hub for game development. You'll contribute to shared platforms, tools, and Java server frameworks, while working with teams across the organization. You'll communicate progress, plans, risks, and problems clearly; contribute to technical decisions; support production services; and help improve our documentation, processes, and ways of working.

At Catalog Games we value ownership, curiosity, teamwork, continuous improvement, and a healthy balance between work and life.

Skills to Create Thrills

• Strong Java development skills and solid Computer Science fundamentals, including object-oriented programming, design patterns, concurrency, and scalability.
• Experience with databases, web development, UNIX environments, and production backend systems.
• The ability to design and implement medium-sized systems or components while contributing to larger systems.
• Experience working with established and evolving codebases, understanding existing patterns and constraints, and improving systems pragmatically.
• Experience with automated testing, code reviews, monitoring, debugging, incident investigation, and production support.
• The ability to take ownership, estimate and plan work, communicate clearly, and collaborate effectively with teammates and stakeholders.
• A pragmatic approach to balancing quality, maintainability, reliability, and delivery speed.
• A willingness to share knowledge, improve documentation, and support less‑experienced developers.
• An understanding of team goals and roadmaps, and how engineering work contributes to the value of the product and business.
• Fluency in English.

Bonus Points

• Experience with NoSQL, Big Data, Bash, HTML, CSS, JavaScript, TypeScript, or other programming languages.
• Experience with CI/CD concepts, Jenkins pipelines, Google Cloud, or other cloud platforms.

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.