Senior UX Designer - Publishing Platform

LEGO Digital Play; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

LEGO Digital Play in London seeks a Senior UX Designer to shape the player-facing experience of our Publishing Platform. This mobile-first role sits at the intersection of games and platform design, with ownership of flows, wireframes, prototypes, and UI specs grounded in user research.

This newly created role reports to the Senior Director, Product and collaborates closely with product managers and engineers to deliver age-appropriate, safe, and delightful experiences for kids, parents, and

Qualifications

• 2+ years in mobile games or high-scale consumer mobile products with strong research emphasis.
• Ability to translate quantitative and qualitative data into design decisions.
• Portfolio showing shipped, player-facing mobile work where research drove decisions and outcomes.
• Strong fluency in mobile design including iOS and Android conventions.
• Understanding of how UI is implemented in game engines and design implications.
• Prototyping skills with Figma and AI-assisted design workflows.
• Excellent communication to socialize research findings with teams and leadership.
• Comfort in early-stage environments with evolving design standards.

Responsibilities

• Partner in player research: plan studies, synthesize findings, and turn insights into design direction for the team.
• Own the UX for player-facing platform features on mobile — flows, wireframes, prototypes, and UI specs grounded in research.
• Design for a general audience spanning kids, parents, and adult fans with age-appropriate, safe, and playful experiences.
• Use analytics, funnels, and A/B tests alongside qualitative research to identify friction and measure impact.
• Design mobile-first experiences that adapt across screen sizes, notches, foldables, and orientations.
• Build a component design system consumed by internal teams as a shared tool.
• Champion accessibility and inclusive design, meeting mobile accessibility standards.
• Collaborate with product managers and engineers to balance user needs with technical realities.

Skills

UX research

Mobile design

Data-driven design

Figma

Prototyping

Communication

Tools

Unity

Unreal

AI-assisted design tools

Job 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

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 appear across our platform and reach players across a range of experiences.

This is a newly created role based in London; this is an individual contributor role reporting to the Senior Director, 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 - flows, wireframes, prototypes, and UI specs - grounded in evidence from research at every stage.
• Research and design for a general audience spanning kids, parents, and adult fans - 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 consume as a shared tool: 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 2 years in mobile games, gaming platforms or comparable high-scale consumer mobile products
• Proven ability to translate quantitative and qualitative data - funnels, A/B tests, and player feedback into insights that change what gets built and why
• Experience researching and designing for a general audience (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 the 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 layout across device classes
• Understanding of how UI is implemented in game engines. You do not need to be an engineer, but you know why a design that is trivial in native mobile might be expensive in Unity or Unreal, and you design accordingly
• Solid design and prototyping skills across modern tooling - Figma is required – with fluency in AI-assisted design and prototyping workflows (e.g. 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 (overlays, webviews, native modules) that lives inside other applications
• Familiarity with common engagement and monetization patterns in live digital products
• Experience with localization and designing for global audiences
• Working knowledge of mobile accessibility guidelines (WCAG, platform-specific standards)
• A genuine love of games - you play on mobile and have opinions about what great platform UX feels like.