Lead Frontend Engineer

Job Description

Job Description

US Mobile is building the future of wireless communication. The goal: one unified network open to any person and any device, worldwide. Connection without walls.

We’re getting there by empowering customers. All three major networks on one phone and one plan, plus home internet from Starlink. No lock-in. No commitments. Custom fit plans at every price point. 24/7 customer support with real people, empowered to help. We get real-time feedback from Reddit, surveys, and customer support informing product roadmaps and everything we do. It’s working — we’re The Wirecutter’s favorite cellular carrier, and Consumer Reports has named us the top-rated mobile carrier two years in a row.*

And we’re building innovative systems that scale. A network agnostic tech stack. Agile, cross-functional teams built on trust and mutual respect. This work isn’t for everyone. If you work fast, flexibly, and collaboratively — without compromising standards — we want to hear from you.

We’re looking for a Lead Frontend Engineer to help us build and grow our frontend team as we double our team. This is a high-impact, high-ownership role where you’ll manage and mentor a team of engineers while architecting and building fast, accessible, and elegant web and mobile applications used by over 1 million subscribers. Our challenges are both technical and strategic.

The Lead Frontend Engineer owns the growth and output of a frontend engineering pod — hiring, developing, and managing a small team — while remaining a strong hands-on contributor and a voice in technical direction. This is a player-coach role: you’ll write code and shape architecture alongside your team, not just direct it from a distance, while also partnering with Talent to build out the team and with Engineering leadership to shape where the frontend goes next.

• Build and lead a team — hire, mentor, and grow a high-performing group of frontend engineers as we scale.
• Shape technical direction — influence architecture, tooling, and roadmap decisions across frontend systems.
• Stay hands-on — architect and build fast, accessible, elegant web and mobile applications used by over 1 million subscribers.
• Scale our systems — help us grow to tens of millions of customers and connected devices.
• Raise the bar — build quality tools and frameworks to ensure a high-quality product.
• Champion accessibility and performance — treat both as first-class concerns across the frontend org.
• Drive innovation — work on mission-critical projects like our next-gen agentic AI chatbot, a customer-centric interface giving full control over phone lines, a next-generation usage dashboard, and an e-commerce experience unmatched in telecom.

• Influence technical direction and architectural decisions across frontend systems, balancing pragmatism with long-term scalability
• Build a state-driven UI that adapts seamlessly to network-specific quirks
• Support legacy and new plans simultaneously
• Create elegant, highly accessible (a11y-first) interfaces that work across platforms
• Lead and contribute to building modern frontend features using React, TypeScript, and CSS
• Design and build UI components for both web and React Native applications
• Architect scalable systems to support millions of user interactions across different networks
• Collaborate closely with backend, product, and design teams to drive elegant, data-informed solutions
• Work with emerging technologies like Rust where performance or architecture demands
• Set and uphold engineering standards and best practices across your team
• Manage, mentor, and grow a team of frontend engineers — owning hiring decisions, performance management, career development, and day-to-day team health
• Partner closely with Talent/Recruiting to define hiring needs, shape interview processes, and build out the frontend engineering team as we scale.

• 12+ years of frontend engineering experience building production-grade UIs, including experience in a technical leadership or people management role
• Bachelor's degree in Computer Science, Engineering, or a related technical field
• Demonstrated experience managing, mentoring, and growing frontend engineers, including hiring and performance management
• Proven ability to influence technical direction and drive architectural decisions at a team or organizational level
• Strong stakeholder management skills — able to represent frontend engineering’s perspective persuasively in front of executives, PMs, and cross-functional partners
• Comfort operating in a fast paced environment — wearing multiple hats across engineering, hiring, and cross-functional work
• Experience partnering with Talent/Recruiting to build and scale engineering teams — defining roles, running hiring processes, and closing candidates
• Proficiency in TypeScript, React, and CSS-in-JS or equivalent styling approaches
• Experience with state management and data fetching libraries (e.g., Tanstack Query, Redux, Zustand)
• A strong eye for UX/UI detail, accessibility, and responsive design
• Comfort dealing with complexity: legacy code, varied device support, and cross-platform consistency
• A self-starter who can define and deliver high-leverage solutions with minimal oversight
• Bonus: Experience with Rust, Mobile Development (React Native), or Telecom-related apps

• Annual company offsites
• Competitive Salary
• Gym reimbursement
• Commute reimbursement
• Flexible working hours
• Professional development stipend
• Flexible time off
• Cell phone service (up to $100/mo)

Think you're a good fit? Apply to learn more!

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.