Senior UX Designer - Publishing Platform

LEGO Digital Play

London, Hybrid

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 powerful 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 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.

Role summary

We’re looking for a Senior UX Designer to shape the player-facing experience of our Publishing Platform. This is a mobile-first role at the intersection of games and platform design: the surfaces you design will appear across our platform and reach players across a range of experiences.

This is a newly created, London-based individual contributor role reporting to the Senior Director of Product.

Key responsibilities

  • Partner in player research: plan studies, synthesise findings and turn insights into design direction the whole team can act on

  • Own the UX for player-facing platform features on mobile—including flows, wireframes, prototypes and UI specifications—grounded in research evidence at every stage

  • Research and design for a general audience spanning kids, parents and adult fans, creating experiences that are age-appropriate, safe by default and delightfully playful for everyone

  • Use analytics, funnel data and A/B testing alongside qualitative research to identify friction, propose improvements and measure the impact of shipped work

  • Design mobile-first experiences that adapt gracefully across screen sizes, aspect ratios, notches, foldables and both portrait and landscape orientations

  • Build a component design system that internal teams can use as a shared tool, with components, patterns and guidance that serve players of every age

  • Champion accessibility and inclusive design across the platform, meeting or exceeding mobile accessibility standards

  • Collaborate closely with product managers, internal teams and platform engineers to balance player needs, team needs and technical realities

Required qualifications

  • Extensive UX experience with a strong research emphasis, including at least two years in mobile games, gaming platforms or comparable high-scale consumer mobile products

  • Proven ability to translate quantitative and qualitative data—including funnels, A/B tests and player feedback—into insights that change what gets built and why

  • Experience researching and designing for a general audience, from kids through adults, including age-appropriate research methods and an understanding of how age shapes comprehension, interaction and trust

  • A portfolio or case studies demonstrating shipped, player-facing mobile work where research clearly drove design decisions and measurable outcomes

  • Strong fluency in mobile design, including touch ergonomics, gesture patterns, iOS and Android platform conventions, performance-aware design and responsive layouts across device classes

  • An understanding of how UI is implemented in game engines—you do not need to be an engineer, but you understand why a design that is trivial in native mobile might be expensive in Unity or Unreal and design accordingly

  • Solid design and prototyping skills across modern tools—Figma is required—with fluency in AI-assisted design and prototyping workflows, such as prompt-to-prototype or code-based prototyping tools; our stack is still being defined, and we expect you to help define it

  • Excellent communication skills, with the ability to socialise research findings and articulate design decisions to internal teams, engineers and leadership

  • Comfort operating in early-stage environments where research practices and design standards are still being defined

Preferred qualifications

  • Experience designing for children in regulated digital environments

  • Experience building a mobile design system for a platform team where multiple teams consume it

  • Experience designing embedded UI, including overlays, webviews and native modules, that lives inside other applications

  • Familiarity with common engagement and monetisation patterns in live digital products

  • Experience with localisation and designing for global audiences

  • Working knowledge of mobile accessibility guidelines, including WCAG and platform-specific standards

  • A genuine love of games—you play on mobile and have opinions about what great platform UX feels like