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About the Role

LEGO Digital Play (LDP) is building the future of digital entertainment for the LEGO brand. This newly created Senior Backend Engineer position will play a key role in developing scalable backend systems for a global player base, focusing on safety, innovation, and playful experiences.

Responsibilities

• Design and implement scalable backend systems using cloud platforms such as AWS.
• Build and operate distributed services supporting core platform capabilities.
• Architect cloud-native systems that scale horizontally and vertically.
• Design server-authoritative multiplayer infrastructure capable of running large numbers of concurrent game simulations.
• Architect simulation environments with strong sandboxing and isolation guarantees.
• Develop infrastructure capable of safely packing and scheduling multiple simulation workloads per server instance.
• Implement resilient and recoverable infrastructure with strong observability, monitoring, and operational tooling.
• Develop systems that protect the platform from abuse and cheating.
• Build load testing and capacity validation systems.
• Implement infrastructure as code and automated deployment pipelines.
• Establish strong engineering practices including automated testing, integration testing, and performance testing.
• Work within a cross-functional team spanning product, design, art, production, and engineering.
• Collaborate with engine, platform, and gameplay teams to ensure backend systems integrate seamlessly.
• Use AI-assisted development tools and workflows to accelerate development.

Requirements

• Experience in software engineering building distributed or large-scale backend systems.
• Strong experience designing and operating cloud infrastructure using platforms such as AWS.
• Proven experience building systems that support high-scale services with millions of users or high concurrency workloads.
• Experience designing scalable distributed architectures and working with services-based systems.
• Experience working with distributed storage technologies such as NoSQL databases and large-scale data systems.
• Experience designing reliable real-time multiplayer systems, matchmaking services, or server-authoritative game infrastructures.
• Understanding of simulation lifecycle management, resource scheduling, or sandboxing approaches.
• Experience implementing observability, monitoring, and operational reliability practices for large-scale services.
• Experience designing and running load testing, stress testing, and capacity validation systems.
• Experience implementing infrastructure as code, CI/CD pipelines, and automated testing frameworks.
• Knowledge of security, anti-cheat systems, or protecting online game platforms from abuse is a strong plus.
• Comfortable collaborating across engine, platform, and gameplay teams.
• Experience incorporating AI-assisted development tools into daily engineering workflows.

Skills

• AWS
• NoSQL databases
• Infrastructure as code
• CI/CD pipelines
• Automated testing
• AI-assisted development tools

Location

• London

Work Type

• Onsite

Experience Level

• Senior

About the Company

• LEGO Digital Play (LDP) will bring the LEGO brand into digital entertainment in new, innovative, and wholly-owned ways.
• Our mission is to ensure the LEGO Brand remains as powerfully a part of children’s lives in the next 20 years as it has been for the past 60.
• We aim to reach every kid on the planet, their parents, and adult fans of LEGO—and provide them with meaningful, magical, and playful new experiences.
• We are in the earliest phases of this new company, offering a unique opportunity to build a new entity for the world's most beloved and trusted brand.
• Our culture is open, collaborative, intellectually rigorous, and creatively vibrant.
• LDP is shaping the future of digital play by taking inspiration from the LEGO Brand’s “system in play” and reimagining it for the digital world.
• Our portfolio is built on a foundation of safety that will ultimately inspire the builders of tomorrow.
• LEGO Digital Play is committed to inspiring and developing the builders of tomorrow - both in the physical and digital worlds.
• If you are passionate about shaping the future of interactive play through innovation, technology and programmable systems we invite you to come build the future with us!