Senior Engineer, Systems Design – Systems Integration & Test, Flow Cytometry

Thermo Fisher Scientific is seeking a highly motivated and experienced Senior Engineer, Systems Design to join our engineering team supporting the Flow Cytometry platform . This role will focus on system-level integration and hands-on engineering testing , ensuring that complex subsystems work together effectively as an integrated product. The successful candidate will lead systems integration activities, execute engineering tests, troubleshoot cross-functional issues, support feasibility and concept studies, and assess technical risk for sustaining changes. The role requires strong systems thinking, test discipline, data-driven problem solving, and hands-on laboratory capability . Prior systems integration experience is strongly preferred; candidates with strong test experience who can demonstrate systems thinking and a willingness to develop systems integration expertise are also encouraged to apply. Responsibilities • Drive execution of systems integration activities for Flow Cytometry system, coordinating interfaces and interactions across microfluidics, acoustics, optics , electronics, firmware/software and other applicable subsystems. • Plan and perform hands-on engineering testing for feasibility studies, concept evaluation, integration checkout, troubleshooting and sustaining investigations. • Execute controlled system configurations and integrated workflows; identify interface, timing, performance and cross-subsystem issues that may not be visible during standalone subsystem testing. • Lead structured integration issue triage and root-cause investigations by reproducing, isolating and characterizing failures, analyzing evidence, and working with appropriate design and test teams through resolution. • Analyze experimental and test data using appropriate statistical and engineering methods; identify trends, variation and failure mechanisms and translate results into clear technical conclusions and recommendations. • Assess integration coverage, identify test or interface gaps, and support development of test methods, acceptance criteria and requirements-to-test traceability. • Perform technical risk and integration-impact assessments for sustaining changes , field issues and design modifications, and support risk-retirement testing and investigations. • Support feasibility studies and proof-of-concept activities to evaluate new concepts, critical performance parameters and interface assumptions. • Maintain clear integration configuration, test results, known issues, residual risks and readiness evidence, and support handoff of an integration-ready system to formal V&V. • Collaborate closely with Systems Engineering, subsystem designers, Technical Leads, Hardware/Software/Embedded Test, V&V, Quality, Regulatory, Manufacturing and Service teams. Required Qualifications • Bachelor's degree or higher in Bioengineering, Biomedical, Mechanical, Electrical, Electronics Engineering , or a related engineering/scientific discipline. • Typically 5+ years of experience in systems engineering, design engineering, integration engineering or test engineering within new product development or sustaining engineering. • Demonstrated hands-on test experience with complex instruments, electromechanical systems or multidisciplinary products. • Systems integration experience is preferred. Candidates without direct integration experience must demonstrate strong systems thinking , learning agility, curiosity, and the ability to understand interactions and dependencies across multiple subsystems. • Strong test engineering fundamentals, including test strategy and method development, experimental design, acceptance criteria, data analysis, statistical interpretation, troubleshooting and technical documentation . • Strong analytical and problem-solving skills, including experience with root-cause analysis and engineering risk assessment such as FMEA or equivalent methods. • Working knowledge of systems engineering/product-development practices, including requirements, interfaces, traceability, design controls and verification concepts. • Ability to communicate technical findings clearly and collaborate effectively across multidisciplinary teams. Preferred: Experience in life-science or analytical instrumentation, flow cytometry, or direct experience with the Attune platform or its microfluidic, acoustic or optical subsystems .