US Mobile is building the future of wireless communication, serving nearly 1 million subscribers. The Staff Front‑End Engineer will design, build, and maintain high‑performance, accessible web and mobile applications across multiple carriers.

The Chance

We’re looking for a Staff Front‑End Engineer to join our growing engineering team as we scale from 14 to 24 developers. This high‑impact, high‑ownership role involves architecting and building fast, elegant UI systems and working on mission‑critical projects.

What you’ll do

- Build a state‑driven UI that adapts seamlessly to network‑specific quirks.
- Support legacy and new plans simultaneously.
- Create elegant, highly accessible interfaces that work across platforms.
- Work on mission‑critical projects, such as our next‑gen agentic AI chatbot redefining customer interaction.
- Lead and contribute to building modern front‑end 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.
- Champion accessibility (a11y) and performance as first‑class concerns.
- 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.
- Drive and mentor a high‑autonomy, high‑impact engineering culture.

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.
- Bonus: Experience with Rust, mobile development (React Native), or telecom‑related apps.

Benefits

- Competitive Salary
- Gym reimbursement
- Commute reimbursement
- Flexible working hours
- Subsidized health benefits (Medical, Dental, Vision)
- Professional development stipend
- Flexible time off

$160,000 – $250,000 a year

#J-18808-Ljbffr

📌 Staff Frontend Engineer (Toronto)
🏢 Us Mobile
📍 Toronto