Senior Systems Engineer responsible for defining and maintaining system-level architectures for complex medical devices, including interface control documentation across fluidic, mechanical, electronics, software, and human factors subsystems. The role involves modeling system behavior using functional modeling techniques (SysML, functional block diagrams, state machines), conducting trade studies, and validating architectural assumptions through testing and characterization.… Requires partnering with cross-functional engineering teams to ensure subsystem alignment, supporting design controls per 21 CFR 820.30 and ISO 13485, and mentoring engineers on systems thinking and interface definition. This is a hands-on role grounded in bench-top testing, data analysis, and evidence-based architectural decisions rather than paper-only work.