Senior SI Engineer: High-Speed PCB & PCIe (Hybrid)

General Motors; Sunnyvale (CA); Hybrid; USD 125,000 - 193,000; Full time

Benefits offered by this job

Health insurance

401(k) retirement savings plan

GM vehicle discounts

Job summary

General Motors is seeking a Senior Signal Integrity Engineer to ensure reliability of high-speed hardware by analyzing and mitigating SI issues in ECU electronics. The role collaborates across hardware, PCB layout, and systems teams to optimize signal paths for DDR, PCIe, USB, SerDes, and Ethernet.

You will lead simulations, validate PDN integrity, and develop SI guidelines while driving innovations in material choices and testing strategies across the product stack.

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Electronics Engineering, or a related field.
• 5+ years of experience in signal integrity, high-speed PCB design, or related areas in hardware engineering.
• Strong understanding of high-speed signal transmission principles, including impedance, crosstalk, noise, and signal attenuation.

Responsibilities

• Perform detailed signal integrity simulations with tools like HyperLynx, HFSS, or CST to identify crosstalk, loss, reflections, and performance degradations.
• Analyze PCB layouts to ensure optimal signal performance and provide feedback to layout and hardware teams.
• Collaborate with hardware engineers to optimize high-speed signal paths for DDR, PCIe, USB, SerDes, and Ethernet.
• Evaluate and validate SI for PDN to minimize noise, ground bounce, and power/ground integrity issues.
• Work with PCB layout, hardware, and mechanical teams to align design choices with SI best practices.
• Partner with systems engineering and software teams to ensure SI across the product stack.
• Develop and implement test strategies using oscilloscopes, VNAs, and TDR for prototypes and final products.
• Create and maintain SI guidelines, best practices, and checklists for engineers.
• Lead evaluation of new materials, design techniques, and tools to improve SI.
• Diagnose and resolve SI issues during bring-up to minimize time-to-market.

Skills

Signal integrity

High-speed PCB design

High-speed interfaces

Education

Bachelor’s or Master’s degree in Electrical Engineering

Tools

HyperLynx

HFSS

CST

ADS

Job description

General Motors is seeking a Senior Signal Integrity Engineer to ensure reliability of high-speed hardware by analyzing and mitigating SI issues in ECU electronics. The role collaborates across hardware, PCB layout, and systems teams to optimize signal paths for DDR, PCIe, USB, SerDes, and Ethernet.

You will lead simulations, validate PDN integrity, and develop SI guidelines while driving innovations in material choices and testing strategies across the product stack.