Clario, part of Thermo Fisher Scientific, is seeking a Principal Software Development Engineer in Test (SDET) to lead quality engineering and scalable test automation across our modern clinical technology platform. In this role, you will define end‑to‑end automation strategy (UI, API, integration, performance, and security), embed intelligent automation into CI/CD, and establish quality standards and coverage metrics. Partnering with engineering, AI, and product teams, you will help accelerate the delivery of reliable, compliant clinical innovations.
What You’ll Be Doing
Define and lead automation strategy across UI, API, integration, performance, and security layers
Architect and evolve scalable, reusable automation frameworks
Implement AI‑assisted testing to enhance coverage and improve defect detection
Integrate automated testing into CI/CD pipelines to support continuous quality validation
Establish quality standards, coverage metrics, and observability practices
Collaborate closely with software engineers, AI engineers, product teams, and quality engineers
Contribute to testing across multiple components within a large-scale clinical technology platform
Improve test reliability, execution speed, and automation maintainability
Ensure compliance with regulatory standards (e.g., GxP, FDA, 21 CFR Part 11)
Mentor engineers and elevate automation maturity across teams
What We Look For
Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field, or equivalent experience
8+ years in software quality engineering, test automation, or related disciplines
Proven experience designing and leading automation strategies and scalable testing frameworks in distributed systems
Strong experience with BDD frameworks (Cucumber, SpecFlow, Gherkin) and solid understanding of TDD
Proficiency in C#, Java, Python, or TypeScript
Hands-on experience integrating automation into CI/CD pipelines and modern DevOps environments
Experience working within Agile Scrum and cross-functional engineering teams
Strong technical leadership skills and ability to influence engineering standards
Ability to work across multiple components of a complex platform architecture
Experience leveraging AI or intelligent automation for improved test coverage and efficiency
Based in Canada and able to work remotely
Preferred Experience
Experience with medical imaging platforms (DICOM, PACS) or complex visualization systems
Experience building automation for performance‑sensitive or high‑resolution UI applications
Experience working in regulated environments such as Clinical Trials, Healthcare, or Life Sciences
Experience collaborating with AI/ML engineers in product development settings
At Clario, our purpose is to transform lives by unlocking better evidence. It’s a cause that unites and inspires us. It’s why we come to work—and how we empower our people to make a positive impact every day. Whether you're advancing clinical science, building innovative technology, or supporting our global teams, your work helps bring life-changing therapies to patients faster.
EEO Statement
Clario is an equal opportunity employer. Clario evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status, or any other legally protected characteristic.
effective Jan 1 2026
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