Software Engineer - Developer Platform

Software Engineer - Developer Platform - LEGO Digital Play

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"@type": "JobPosting",

"title": "Software Engineer - Developer Platform",

"description": " LEGO Digital Play 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 coming decades as it has ever been. 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.

Central Technology is the engineering heart of LEGO Digital Play, a venture within the LEGO ecosystem dedicated to pioneering creative and joyful digital experiences. Our teams build the foundational platforms, tools, and capabilities that power LEGO s digital future. We work at the intersection of play, applied AI, and developer tooling to bring the LEGO brand to a new generation of digital builders. It s a rare opportunity to shape something from the ground up within one of the world s most loved brands.

We are at 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.

Role Summary The Central Technology team is the engineering heart of LEGO Digital Play, a venture within the LEGO ecosystem dedicated to pioneering creative and joyful digital experiences. Our teams build the foundational platforms, tools, and capabilities that power LEGO s digital future. We work at the intersection of play, applied AI, and developer tooling to bring the LEGO brand to a new generation of digital builders. It s a rare opportunity to shape something from the ground up within one of the world s most loved brands.

We are looking for a Software Engineer to build game engine SDKs and create content for our developers. This is a newly created role reporting to our Head of Developer Platform based in our London HQ.

Key Responsibilities Design, build and maintain the Unity, Unreal and other SDKs for our platforms: plug-ins and packages that expose platform services to developers through clean, stable and well-versioned APIs Package and validate code packages for target mobile devices including iPhone and Android; own build configuration, platform-specific behaviour and compatibility across supported OS versions and hardware Build developer-facing tools inside the editors that make the platform easier to adopt, integrate and debug; treat developer experience as a first-class deliverable Write and maintain clear SDK documentation, integration guides and code samples; keep them accurate and in step with each release Design and maintain CI/CD pipelines for the SDK: automated builds, packaging, versioning and release across supported platforms Own testing for the SDK: unit, integration and on-device testing; build the harnesses and fixtures that let the team ship changes with confidence Use AI coding tools effectively in day-to-day development and help establish sensible team practices for reviewing, validating and trusting AI-assisted output Support the platform s safety, brand integrity and IP obligations at the SDK layer: sensible defaults, safe API surfaces and controls that hold as the SDK is adopted more widely Required Qualifications Degree in computer science or a related discipline, or demonstrated equivalent capability through professional practice Experience working across different engineering team disciplines in a highly collaborative environment Solid hands-on software engineering experience across the full development cycle, with the range to work as a generalist rather than in a single narrow specialism Practical experience developing with the Unity engine, including plug-in or package development and working within the editor Experience building and shipping software for mobile devices, including packaging and platform-specific concerns for iOS and Android Demonstrated experience using AI tooling for code in real development work, with sound judgement about where it helps, where it does not and how to verify its output Hands-on experience with CI/CD: designing or maintaining automated build, test and release pipelines A strong testing practice: writing unit and integration tests and validating behaviour on target devices Ability to write clear technical documentation for other developers Comfort with ambiguity: able to take a loosely defined problem, work out what it needs and deliver a working result Clear, structured communication; able to work closely with backend and infrastructure engineers and explain SDK trade-offs plainly Preferred Qualifications Experience building and maintaining SDKs or developer libraries consumed by other engineers Familiarity with C# and the .NET toolchain as used in Unity development Familiarity with the Unreal engine (Unreal C++, Blueprints) Experience with additional engines or cross-engine work, or with native mobile development on iOS or Android Experience with editor extensions, custom inspectors or other in-editor tooling in Unity Experience with editor extensions, details panels, custom rendering, in Unreal Experience shipping software on a platform with meaningful compliance requirements, particularly those involving children s data Early-stage or founding-team experience where patterns and standards were still being set ",

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LEGO Digital Play 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 coming decades as it has ever been. 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.

Central Technology is the engineering heart of LEGO Digital Play, a venture within the LEGO ecosystem dedicated to pioneering creative and joyful digital experiences. Our teams build the foundational platforms, tools, and capabilities that power LEGO's digital future. We work at the intersection of play, applied AI, and developer tooling to bring the LEGO brand to a new generation of digital builders. It's a rare opportunity to shape something from the ground up within one of the world's most loved brands.

We are at 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.

Role Summary The Central Technology team is the engineering heart of LEGO Digital Play, a venture within the LEGO ecosystem dedicated to pioneering creative and joyful digital experiences. Our teams build the foundational platforms, tools, and capabilities that power LEGO's digital future. We work at the intersection of play, applied AI, and developer tooling to bring the LEGO brand to a new generation of digital builders. It's a rare opportunity to shape something from the ground up within one of the world's most loved brands.

We are looking for a Software Engineer to build game engine SDKs and create content for our developers. This is a newly created role reporting to our Head of Developer Platform based in our London HQ.

Key Responsibilities Design, build and maintain the Unity, Unreal and other SDKs for our platforms: plug-ins and packages that expose platform services to developers through clean, stable and well-versioned APIs Package and validate code packages for target mobile devices including iPhone and Android; own build configuration, platform-specific behaviour and compatibility across supported OS versions and hardware Build developer-facing tools inside the editors that make the platform easier to adopt, integrate and debug; treat developer experience as a first-class deliverable Write and maintain clear SDK documentation, integration guides and code samples; keep them accurate and in step with each release Design and maintain CI/CD pipelines for the SDK: automated builds, packaging, versioning and release across supported platforms Own testing for the SDK: unit, integration and on-device testing; build the harnesses and fixtures that let the team ship changes with confidence Use AI coding tools effectively in day-to-day development and help establish sensible team practices for reviewing, validating and trusting AI-assisted output Support the platform's safety, brand integrity and IP obligations at the SDK layer: sensible defaults, safe API surfaces and controls that hold as the SDK is adopted more widely Required Qualifications Degree in computer science or a related discipline, or demonstrated equivalent capability through professional practice Experience working across different engineering team disciplines in a highly collaborative environment Solid hands-on software engineering experience across the full development cycle, with the range to work as a generalist rather than in a single narrow specialism Practical experience developing with the Unity engine, including plug-in or package development and working within the editor Experience building and shipping software for mobile devices, including packaging and platform-specific concerns for iOS and Android Demonstrated experience using AI tooling for code in real development work, with sound judgement about where it helps, where it does not and how to verify its output Hands-on experience with CI/CD: designing or maintaining automated build, test and release pipelines A strong testing practice: writing unit and integration tests and validating behaviour on target devices Ability to write clear technical documentation for other developers Comfort with ambiguity: able to take a loosely defined problem, work out what it needs and deliver a working result Clear, structured communication; able to work closely with backend and infrastructure engineers and explain SDK trade-offs plainly Preferred Qualifications Experience building and maintaining SDKs or developer libraries consumed by other engineers Familiarity with C# and the .NET toolchain as used in Unity development Familiarity with the Unreal engine (Unreal C++, Blueprints) Experience with additional engines or cross-engine work, or with native mobile development on iOS or Android Experience with editor extensions, custom inspectors or other in-editor tooling in Unity Experience with editor extensions, details panels, custom rendering, in Unreal Experience shipping software on a platform with meaningful compliance requirements, particularly those involving children's data Early-stage or founding-team experience where patterns and standards were still being set

Department

Central Technology

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LEGO Digital Play London Office

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Hybrid

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