Sr Design System Technologist

T-Mobile; Frisco (TX); On-site; USD 97,300 - 175,500; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) with company match

Paid time off and holidays

Tuition assistance

Employee stock grants

Job summary

T-Mobile is looking for a design expert to oversee and advance their AI-powered design system across the Mint Mobile and Ultra Mobile ecosystem. In this role, you will enhance quality and consistency in digital products while driving adoption of innovative experiences. You must collaborate with designers and engineers, using AI tools to create efficient workflows and interactive components.

Qualified candidates should have a relevant degree and significant experience in Interaction Design or Front-End development. Excellent communication skills and technical proficiency are essential.

Qualifications

• Bachelor’s degree or certification in a relevant field with 5+ years experience.
• 4–7 years in Interaction Design or Front-End development.
• Proficient in AI tools for creating prototypes.

Responsibilities

• Utilize AI tools for component generation and prototype delivery.
• Lead design token and reusable components development.
• Collaborate with design and engineering teams for innovative solutions.

Skills

AI tools proficiency

Front-end development

Figma

HTML

CSS

JavaScript

React

Storybook

Design principles

Responsive web design

Education

Bachelor’s Degree in Computer Science, Web Development, or Software Engineering

Advanced degree in relevant fields

Tools

AI tools (Claude, Codex)

Component libraries

Interactive prototypes

Job description

Job Overview

This role builds and evolves the AI‑powered design system that supports digital products across the Mint Mobile & Ultra Mobile ecosystem. It improves quality, scalability, and consistency through user‑centered system design and intelligent automation. The role uses AI‑driven workflows to accelerate component creation, streamline maintenance of component libraries, design tokens, and documentation, and enhance the efficiency of multi‑functional product delivery. Working closely with designers, engineers, and product partners, this position drives adoption of cohesive, scalable experiences while advancing AI‑enabled design operations across the organization. It also defines guidelines for integrating AI into design and development workflows, helping teams work more efficiently while maintaining high standards for usability, accessibility, and brand consistency.

Job Responsibilities

• Use AI tools to accelerate component generation, streamline documentation and workflows, create interactive prototypes, and deliver functional component solutions to engineering.
• Lead the development and refinement of design tokens, reusable components, UI patterns, and component architecture to ensure cross‑platform design‑system consistency, governance, and innovative digital experiences.
• Partner with designers, engineers, Experience Design teams, Engineering Enablement Lanes, and the Design System Manager to understand requirements, technical constraints, and implementation workflows while fostering collaboration and streamlining communication between design and engineering teams.
• Research, build, and contribute to the initial front‑end implementation of complex UI patterns, components, and interactive experiences; collaborate with engineering teams to transform prototypes into functional 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 while promoting forward‑thinking approaches to digital capabilities and user experiences.
• Create technical documentation for tokens, components, patterns, and usage guidelines; host workshops and training sessions to educate designers and engineers on emerging technologies, AI capabilities, Figma component‑building guidelines, and scalable contribution workflows. Present complex solutions to technical and non‑technical audiences while delivering accurate, high‑quality work on schedule.

Education and Work Experience

• Bachelor’s Degree or Certification in Computer Science, Web Development, or Software Engineering plus 5 years of related work experience; or an 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 innovative solutions for e‑commerce websites and native apps.

Knowledge, Skills and Abilities

• High proficiency in using AI tools like Claude and Codex to create hi‑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.
• Design and develop adaptable interfaces and components that deliver consistent, accessible, and optimized user experiences across devices, screen sizes, and platforms.
• Create modular, reusable component systems and patterns that support scalability, maintainability, and efficient collaboration across design and engineering teams.
• Expertise in Figma, HTML, CSS, JavaScript, React, and Storybook.
• Excellent communication skills with the ability to verbally articulate technical details and bridge the communication gap between designers and engineers.
• Strong collaboration skills with the ability to work closely with designers and engineers.

Licenses and Certifications

• At least 18 years of age.
• Legally authorized to work in the United States.

Travel

Travel Required: Yes

DOT Regulated

DOT Regulated Position: No
Safety Sensitive Position: No

Base Pay Range

Base pay range: $97,300 – $175,500. Corporate bonus target: 15%.

Benefits

• Medical, dental, and vision insurance.
• Flexible spending account and 401(k) with company match.
• Employee stock grants and employee stock purchase plan.
• Paid time off, holidays, parental and family leave.
• Back‑up care, tuition assistance, and commuter/transit programs.

Equal Employment Opportunity Statement

T‑Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, religious affiliation, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination, retaliation, or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated. If you are an individual with a disability and need reasonable accommodation at any point in the application or interview process, please email [e-mail] or call 1‑844‑873‑9500.