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US MobilePosted 1 month ago

Staff Frontend Engineer

On-siteToronto, Ontario, Canada

Full TimeSenior LevelSmall

Job Summary

Architect and build state-driven, accessible web and mobile interfaces using React, TypeScript, and CSS for mission-critical applications serving nearly one million subscribers across Verizon, AT&T, and T-Mobile. Lead the development of next-gen features including an agentic AI chatbot and a usage monitoring dashboard, while championing performance and a11y as first-class concerns. Mentor a high-autonomy engineering culture and collaborate with backend, product, and design teams to drive scalable systems supporting millions of user interactions. This high-impact role involves scaling the team from 14 to 24 developers within a network-agnostic tech stack, with opportunities to leverage emerging technologies like Rust where architecture demands.

Required Qualifications

  • 8+ years of front-end engineering experience building production-grade UIs
  • 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

Desired Qualifications

  • Experience with Rust
  • mobile development (React Native)
  • telecom-related apps

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