Staff Frontend Engineer
Hybrid · Toronto
Architect and build fast, accessible web and mobile applications for nearly 1 million subscribers. Lead the development of modern frontend features and mentor a high-autonomy engineering culture.
UM
US Mobile
Verified Job SourceOn a mission to revolutionize wireless by building the next-generation connectivity platform.
New York, NY
Telecommunications
501–1,000 people
About
Access to all three major networks on one plan. Freedom from traditional wireless plans. Customer obsessed. No commitments. Headquartered in NYC.
Open positions
Staff Frontend Engineer
Hybrid · Montréal
Architect and build fast, accessible web and mobile applications for nearly 1 million subscribers. Lead the development of modern frontend features and mentor a high-autonomy engineering culture.
Principal Software Development Engineer in Test
Hybrid · Toronto
Own and elevate the quality engineering practice by designing test strategies and scalable automated frameworks for backend and frontend systems. Lead the implementation of CI pipelines and mentor engineers to embed quality across the entire software development lifecycle.
Full-Stack Software Engineer
Hybrid · Montréal
As a Full-Stack Software Engineer, you will develop and deploy new features, advise on technologies, and work on legacy architecture projects. You will also assist in building tools to ensure a high-quality end-user product and help scale to millions of customers and connected devices.
AI / ML Engineer
Hybrid · Montréal
The AI/ML Engineer will design, deploy, and scale multi-agent conversational LLM solutions to enhance user experiences. They will also build robust data pipelines and optimize model performance to handle high-concurrency interactions.
Senior Backend Engineer
Hybrid · Toronto
You will architect optimal solutions and deploy new features to scale the platform for millions of connected devices. You are also responsible for maintaining RESTful APIs, ensuring system uptime, and collaborating with cross-functional teams to deliver scalable features.
Lead Security Engineer (Fraud)
Hybrid · Montréal
The Lead Security Engineer will design secure systems, write production code, and lead a team to embed security into the entire software development lifecycle. They are responsible for detecting and preventing online payment fraud while collaborating with engineering teams to ensure infrastructure resilience.
Senior Backend Engineer (Online Security)
Hybrid · Toronto
The role involves designing, developing, and maintaining scalable backend services and APIs, with a deep focus on online security, including protecting devices and networks, and hardening access controls. Responsibilities also include implementing asynchronous service communication and collaborating with cross-functional teams to deliver features.
Senior AI Engineer - Voice Biometrics & Conversational AI
On-site
US Mobile is building the future of wireless communication. The goal: one unified network [http://usmobile.com/manifesto] 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 [https://www.reddit.com/r/USMobile/], surveys, and customer support informing product roadmaps and everything…