StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision. We are seeking a talented Senior Quality Engineer who will play a central role in ensuring software quality and driving automation in a cross‑functional agile environment. What you'll be doing Participate in the development of in‑house automated and functional test scripts and tooling for functional, system, API, integration, UI, and regression testing. Collaborate with Platform, Product, DevOps, and other teams to deploy and run automated tests on test environments through CI/CD. Provide timely test result feedback to the Platform Team, QA team, and relevant stakeholders. Participate in technical planning, code review, and architectural decision‑making. What you bring to the table At least 4 years of professional, hands‑on test automation experience with API & UI test automation frameworks such as Playwright, Selenium, Cypress, Mocha, Jest or Junit. Knowledge of React, including adding data-testids. Ability to explore a codebase and use technical tools to understand implementation. Fluency in at least one of Javascript, Typescript, Python, or Java. Experience with CI/CD tools like Jenkins, GitHub Actions, or CircleCI. Strong understanding of scalable system design for web‑based APIs and backend processing systems. In‑depth understanding of QA methodologies in a software company with short release cycles. Experience writing test cases that cover edge/negative cases, compatibility, and concurrency tests in test case management tools such as TestRail. Experience working with relational databases. Hands‑on experience with SQL and ability to query large data sets. Benefits and Perks Highly competitive salary. Retirement/401K/Pension savings globally. Competitive paid‑time‑off packages. Access to a comprehensive mental health care program. Health benefits from day one of employment. Work‑from‑home reimbursements. Optional global WeWork membership. Robust training and onboarding program. Coverage of personal development initiatives (conferences, courses, books). Access to StackAdapt programmatic courses and certifications. A parental leave program. A friendly, welcoming, and supportive culture. Social and team events. StackAdapt is a remote‑first company and welcomes candidates located anywhere in North America. Ontario Compensation Range: $104,000 CAD - $123,500 CAD. StackAdapt is a diverse and inclusive team of collaborative, hardworking individuals. No matter who you are, you are welcome here. #J-18808-Ljbffr