US Mobile
Principal Software Development Engineer in Test
Toronto · Principal
Sponsorship not specifiedCAD 140k-CAD 180kDetected 34 days ago
JavaSpringGitMongoDBAWSGitHub ActionsJenkinsLinuxDevOpsRabbitMQSeleniumCypressPlaywrightLoad Testing5G/LTELeadershipMentoring
About the role
- Imagine a world where you can go into a single app and buy terabytes of data for every one of your devices: phone, smart devices, car, home broadband, and more.
- Our team spans diverse backgrounds, cultures, and stories, with employees coming from 20+ countries.
- This is a technical leadership role for someone who has built, scaled, and stabilized automated test platforms in modern microservices environments.
Responsibilities
- US Mobile is looking for a Principal-level SDET to own and elevate our quality engineering practice.
- You'll lead by example, designing test strategy, improving CI pipelines, mentoring engineers, and ensuring quality is embedded across the SDLC.
- Build and maintain pipelines using Selenium, Playwright or Cypress. (Currently using Cypress)
- Mentor Software Engineers on test design and automation.
Requirements
- 5+ years in Quality Engineering / Test Automation.
- Senior or Staff-level experience in a product-driven org.
- Deep expertise with Selenium, Playwright, Cypress.
- Experience testing microservices & distributed systemsCI/CD experience (GitHub Actions, Jenkins, GitLab, etc.).
Nice to have
- Contract testing (Pact or similar).
- Performance testing experience.
- Cloud-native testing in AWS.
- Observability-driven testing (logs, metrics, traces).
Skills
- Design, build, and maintain scalable automated test frameworks.
- Lead end-to-end, API, integration, and UI automation.
- Drive adoption of best-in-class testing practices
- Test Java / Spring Boot microservices.
- Validate async workflows (RabbitMQ).
- Test data persistence layers (MongoDB).
- Ensure quality in AWS-based distributed systems.
- Partner with DevOps to improve pipelines and observability.
Compensation
- CAD 140k-CAD 180k
Company info
- At the core of it all, we have a team and culture that has been recognized by Forbes as one of the top 500 best startup employers in the US.
- We're a venture-backed company entering hyper-growth, having recently ranked 94th on Inc 5000's fastest-growing private companies in America, and we're looking for someone exceptional to join our team.
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This listing is sourced directly from US Mobile's careers page and normalized into a canonical job model.