We are now looking for a Senior Signal Integrity Engineer – Cryogenic Interconnects! NVIDIA has continuously reinvented itself over two decades. Our invention of the GPU in 1999 sparked the growth of the PC gaming market, redefined modern computer graphics, and revolutionized parallel computing. More recently, GPU deep learning ignited modern AI - the next era of computing. NVIDIA is a “learning machine” that constantly evolves by adapting to new opportunities that are hard to solve, that only we can tackle, and that matter to the world. This is our life’s work, to amplify human imagination and intelligence.This is a dynamic team working with state-of-the-art, unique technology. If you are someone that loves a challenge, come join this diverse team and help move the needle.What you'll be doing:Develop accurate 3D EM models for PCB and interconnect structures using tools such as HFSSSimulate multi-layer PCB designs under cryogenic conditionsDefine high-speed constraints, SI specifications, and design guidelines across RF, materials, and thermal domainsWork on next-generation cryogenic interconnect solutions for ultra-high-speed communicationCollaborate closely with SI, materials, mixed-signal, and system teams to drive end-to-end interconnect performancePerform lab characterization and validation using network analyzers and other measurement toolsCorrelate simulation results with hardware measurements to improve modeling accuracyContribute to system-level understanding of interconnect behavior across PCB, package, and system domainsWhat we need to see:MS/PhD in Electrical Engineering or equivalent experience5+ years of experienceStrong experience in signal integrity modeling and simulation (HFSS or similar EM tools)Deep understanding of high-frequency / broadband designSolid understanding of multi-layer PCB design and signal behaviorKnowledge of PCB materials and their electrical and physical propertiesExperience with lab measurements (VNA, high-speed characterization)Background in cryogenic technologies or strong interest in developing expertise in this areaWays to stand out from the crowd:Experience working on low-loss / ultra-high-speed interconnectsBackground in materials modeling or SI-material correlationExperience in extreme environments (cryogenic, thermal, or reliability-driven design)Track record of correlating simulation to hardware measurementsStrong cross-functional experience with PCB, package, and system teamsYour base salary will be determined based on your location, experience, and the pay of employees in similar positions. The base salary range is 168,000 USD - 264,500 USD.You will also be eligible for equity and benefits.Applications for this job will be accepted at least until August 2, 2026.This posting is for an existing vacancy. NVIDIA uses AI tools in its recruiting processes.NVIDIA is committed to fostering an inclusive work environment and proud to be an equal opportunity employer. As we highly value diversity in our current and future employees, we do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law.