Senior Software Development Engineer in Test (SDET)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Development Engineer in Test (SDET) based in Canada. As a Senior Software Development Engineer in Test (SDET), you will play a key role in shaping the quality engineering strategy and automation practices across a modern SaaS platform. You will join a multidisciplinary Platform Engineering team responsible for building the infrastructure, tools, and engineering standards that support reliable product development. Your mission will be to design scalable testing frameworks, strengthen CI/CD pipelines, and embed quality throughout the software development lifecycle. Working across web applications, APIs, integrations, and distributed systems, you will help engineering teams deliver high-quality software with greater speed and confidence. You will also provide technical mentorship, influence organization-wide testing standards, and explore emerging technologies, including AI-driven testing. This is an opportunity to make a broad technical impact while helping protect the experiences and businesses of thousands of customers. Accountabilities: You will lead the evolution of test automation and quality engineering practices, combining hands-on technical expertise with strategic influence across multiple engineering teams. Your responsibilities will include: - Lead the development and continuous improvement of scalable, maintainable test automation frameworks covering web, API, integration, and component-level testing. - Design and implement advanced automated testing suites across frontend, backend, services, and integrations using tools such as Playwright, Cypress, Selenium, or similar technologies. - Optimize CI/CD pipelines to improve build efficiency, reliability, test execution speed, and parallelization. - Establish testing strategies, quality standards, and technical guardrails for major product features, system redesigns, architectural initiatives, and cross-functional projects.

- Mentor and coach engineers and SDETs, promoting best practices in test design, automation architecture, and quality engineering. - Collaborate with Product Managers, Developers, QA specialists, and Operations teams to clarify requirements, improve testability, and align on quality expectations. - Evaluate and introduce new testing tools, frameworks, and technologies through proof-of-concept initiatives and experimentation. - Contribute to the long-term QA automation roadmap and influence the organization's overall testing strategy. - Champion observability and monitoring practices using tools such as Grafana, Prometheus, New Relic, or similar platforms. - Lead root cause analysis for complex technical issues and ensure preventive automation is implemented to reduce recurring problems. - Maintain and promote consistent quality assurance policies, procedures, and engineering standards across teams. - Identify opportunities to leverage AI-powered testing tools and emerging technologies to improve automation efficiency and software quality. Requirements : You are an experienced quality engineering professional with a strong background in software testing, automation architecture, and technical leadership. You combine deep technical expertise with the ability to influence engineering practices, mentor others, and drive quality improvements across distributed teams. The ideal candidate will demonstrate: - At least 5 years of professional experience in software testing and test automation, including building automation frameworks and guiding engineering teams. - Strong expertise in end-to-end testing, integration testing, API testing, and service-level automation using tools such as Playwright, Cypress, Selenium, or Protractor. - Proven experience designing automated test frameworks for Ruby on Rails and React applications.