Senior SI Engineer – Cryogenic Interconnects & High‑Speed PCB

NVIDIA Corporation; Santa Clara (CA); On-site; USD 168,000 - 265,000; Full time

Benefits offered by this job

Equity

Benefits

Job summary

NVIDIA Corporation in Santa Clara, CA is seeking a Senior Signal Integrity Engineer for Cryogenic Interconnects. You will develop accurate 3D EM models, simulate high-frequency PCB interconnects under cryogenic conditions, and define SI constraints across RF, materials, and thermal domains.

You will collaborate with SI, materials, mixed-signal, and system teams to drive end-to-end performance, perform lab measurements with VNAs, and correlate results to refine models.

Qualifications

• MS/PhD in Electrical Engineering or equivalent experience.
• 5+ years of experience in signal integrity.
• Strong experience in signal integrity modeling and simulation (HFSS or similar EM tools).
• Deep understanding of high-frequency / broadband design.
• Solid understanding of multi-layer PCB design and signal behavior.
• Knowledge of PCB materials and their electrical and physical properties.
• Experience with lab measurements (VNA, high-speed characterization).
• Background in cryogenic technologies or strong interest in developing expertise in this area.

Responsibilities

• Develop accurate 3D EM models for PCB and interconnect structures using HFSS.
• Simulate multi-layer PCB designs under cryogenic conditions.
• Define high-speed constraints, SI specifications, and design guidelines across RF, materials, and thermal domains.
• Work on next-generation cryogenic interconnect solutions for ultra-high-speed communication.
• Collaborate with SI, materials, mixed-signal, and system teams to drive end-to-end interconnect performance.
• Perform lab characterization and validation using network analyzers and other measurement tools.
• Correlate simulation results with hardware measurements to improve modeling accuracy.
• Contribute to system-level understanding of interconnect behavior across PCB, package, and system domains.

Skills

Signal integrity modeling

HFSS or similar EM tools

High-frequency design

PCB design expertise

Education

MS/PhD in Electrical Engineering

Equivalent experience

Tools

HFSS

VNA

3D EM simulation

Job description

NVIDIA Corporation in Santa Clara, CA is seeking a Senior Signal Integrity Engineer for Cryogenic Interconnects. You will develop accurate 3D EM models, simulate high-frequency PCB interconnects under cryogenic conditions, and define SI constraints across RF, materials, and thermal domains.

You will collaborate with SI, materials, mixed-signal, and system teams to drive end-to-end performance, perform lab measurements with VNAs, and correlate results to refine models.