Department: Research & Development Location: Canada-CHQ-Ontario-Toronto Compensation: $123,300 - $169,500 / year This full‑time, on‑site position is ideal for experienced Senior Software Development professionals with experience in automated testing. We are looking for a Senior Software Developer in Test (Sr. SDET) to join the Predictability Core team, which is responsible for implementing new clinical features designed to improve the efficacy and predictability for our Invisalign product. You will work in close collaboration with colleagues from a larger R&D group, Biomechanical team, Clinical experts, and product managers, focusing on algorithmic and mathematical solutions for orthodontic problems across different geographies. As a Sr. SDET, you will design and extend automatic test systems for complex problem domains in a regulated medical environment using Python. Role expectations Interact closely with clinical experts, project managers, product owners, and software developers to analyze specifications and deliver detailed requirements. Find advanced solutions for verifying open‑ended clinical requirements. Develop functional, regression, performance, and integration testing solutions using test automation tools. Perform exploratory testing to quickly uncover problems and guide the development of more formal test scripts. Write and review automatic tests, and support software developers in writing tests early in the development process. Troubleshoot and triage manually reported problems and feedback. Contribute to documentation, architecture, and project planning and sizing. Participate in release preparation: software verification, maintenance of test coverage, troubleshooting, and production support. Set up, maintain, and improve reliable test environments and CI/CD pipelines. Set up, configure, maintain, and improve existing automation frameworks; research new test tools, methodologies, and trends to upgrade existing practices and create new frameworks. Collaborate with other teams to improve automation, QA methodologies, and best practices throughout the company. What We're Looking For Excellent knowledge and practical experience with Python. Experience in testing complex 3D software. Bachelor’s degree in computer science, mathematics, or related field, or equivalent experience in software development. Deep understanding and 8+ years of practical experience with tools, methodologies, and frameworks for automatic software testing. Experience in Agile SDLC. Working knowledge of GIT. Experience in writing and maintaining technical documentation. Highly motivated, creative, self‑starter with excellent organizational, communication, and interpersonal skills and a “can‑do” attitude; thrives in a high‑paced, multi‑task environment. Complementary skills Experience working with PyTest and Open3D Python library. Experience with build management, software configuration management, change management, and release management activities. Experience working in highly regulated industries such as banking, finance, healthcare, medical devices, aerospace, etc. Experience working with Atlassian stack Bamboo, Zephyr, Bitbucket, JIRA, Confluence, etc. Experience working with Splunk, our primary monitoring tool. Mathematical background and knowledge of optimization methods, linear algebra, analytical geometry, and/or 3D graphics at a university level. Pay Transparency: Salary ranges are determined based on the candidate’s skills and experience and may be adjusted for other locations. This posting is for an existing vacancy within our organization. Equal Opportunity Statement Align Technology is an equal opportunity employer. We are committed to providing equal employment opportunities in all our practices, without regard to race, color, religion, sex, national origin, ancestry, marital status, protected veteran status, age, disability, sexual orientation, gender identity or expression, or any other legally protected category. Applicants must be legally authorized to work in the country for which they are applying, and employment eligibility will be verified as a condition of hire. #J-18808-Ljbffr