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Sr Design System Technologist

T-Mobile·Frisco / Irvine / Denver / Overland Park / Bellevue, USA·$97,300–$175,500 / year

T-Mobile is hiring for a role that builds and evolves the AI-powered design system supporting digital products across Mint Mobile and Ultra Mobile’s ecosystem. The role uses AI-driven workflows to accelerate component creation, maintain component libraries, design tokens, and documentation, and support multi-functional product delivery. The position works with designers, engineers, and product partners to drive scalable experiences and AI-enabled design operations while maintaining usability, accessibility, and brand consistency.

AI skillsThis role asks for AI & agentic skills, exactly what we teach at Into Design Systems

What you'll do

  • Use AI tools to accelerate component generation, documentation, workflows, interactive prototypes, and functional component solutions for engineering implementation
  • Lead development and refinement of design tokens, reusable components, UI patterns, and component architecture
  • Partner with designers, engineers, Experience Design teams, Engineering Enablement Lanes, and the Design System Manager on requirements, constraints, and implementation workflows
  • Research, build, and contribute to initial front-end implementation of complex UI patterns, components, and interactive experiences
  • Collaborate with engineering teams to turn prototypes into production-ready solutions across applications and teams
  • Drive design system adoption, consistency, innovation, and implementation workflows
  • Build Figma plugins and contribution processes to improve designer and developer efficiency
  • Create technical documentation for tokens, components, patterns, and usage guidelines

What they're looking for

  • Bachelor's degree or certification in Computer Science, Web Development, or Software Engineering plus 5 years of related work experience, or advanced degree with 3 years of related experience
  • Other acceptable areas of study include Digital Design and Human-Computer Interaction Design
  • 4-7 years of related experience in Interaction Design or Front-End development creating solutions for ecommerce websites and native apps
  • High proficiency using AI tools like Claude and Codex to create high-fidelity interactive prototypes and complex UI patterns
  • High proficiency in front-end development, including writing, reviewing, and auditing code to validate and optimize AI-generated design system libraries and component implementations
  • Strong understanding of design principles, modern UI patterns, elements, interactions, responsive web design, and accessibility standards
  • Ability to design and develop adaptable interfaces and components across devices, screen sizes, and platforms
  • Ability to create modular, reusable component systems and patterns

Learn the skills this role asks for

Into Design Systems is the conference on Claude Code and Figma MCP and design system automation, taught by the teams who run them in production.

Learn these skills

Am I a fit for this role?

Let your own agent answer that. Connect this board once with the command below and the agent reads this posting in full instead of guessing from the title.

claude mcp add --transport http ids-jobs https://jobs.intodesignsystems.com/mcp

Then paste this and add your background

Use the ids-jobs MCP server and read the job "t-mobile-sr-design-system-technologist-1wdy6a". Tell me which requirements I already meet and which ones I am missing. My background:

How the MCP server works

Summary written by Into Design Systems from the public job posting, without guarantee of accuracy or completeness. Always verify the details and apply on the company's official page.

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