Engineer III - Software Developer Engineer in Test (SDET)

As a result of the combination of the BD Biosciences and Diagnostic Solutions business with Waters Corporation (NYSE: WAT), by applying to this role, you will be applying for a position with Waters. Waters is a global leader in life sciences, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, Waters’ innovative portfolio harnesses deep scientific expertise across biology, chemistry, and physics. Waters collaborates with analytical laboratories around the world to advance the release of effective, high-quality medicines, assure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combatting growing antibiotic resistance. Through a shared culture of relentless innovation, Waters’ passionate team of approximately 16,000 colleagues partner with customers to turn scientific challenges into breakthroughs that improve lives worldwide.

 We are the people who give possibilities purpose BD is one of the largest global medical technology companies in the world. Advancing the world of health™ is our Purpose, and it’s no small feat. It takes the imagination and passion of all of us—from design and engineering to the manufacturing and marketing of our billions of MedTech products per year—to look at the impossible and find transformative solutions that turn dreams into possibilities. 

 Job Description Summary: The Software Development Engineer in Test (SDET) will be responsible for developing automated tests to ensure the quality of software systems and applications. The role involves creating test plans, writing code for automating tests, maintaining existing tests, and reporting on product defects. The SDET will work closely with developers, test engineers and other stakeholders to identify issues early in development cycles and provide feedback to improve overall system reliability. This position requires strong technical skills as well as excellent communication abilities.  We are looking for a Software Developer in Test to own and develop our automated test platform. This is a software engineering role first, you will design and build production-quality code that verifies software, not a testing role that occasionally writes scripts. You will architect test infrastructure and contribute to shared libraries.

Design, build, and maintain a multi-module test infrastructure spanning API, browser, performance, and protocol-level testing disciplines  Create and maintain automated functional, integration, system, regression and performance tests.  Develop and version reusable shared libraries, authentication clients, model libraries, and data providers consumed across multiple test modules  Build software tests that interface with external systems and hardware devices to enable isolated, reproducible test environments independent of third-party availability  Engineer layered API client abstractions that handle authentication, request construction, response validation, and structured logging  Design and execute tests that model realistic concurrent user journeys and produce actionable results  Author and maintain CI/CD pipeline definitions that execute, gate, and report on test results across environments and deployment targets  Integrate test execution with external test management and defect tracking systems to maintain traceability from requirement to result  Enforce production-grade engineering standards on test code, design patterns, code review, refactoring, and module-level abstractions  Collaborate on API contracts, authentication flows, and system observability from a testability perspective during design and development  Minimum Required:   Bachelor’s in Computer Science, Engineering or related discipline.  3+ years of professional