Senior Signal Integrity Engineer

Responsibilities

• Perform end-to-end signal integrity analysis for blade- and rack-level system architectures
• Analyze and optimize high-speed and low-speed I/O interfaces including PCIe, Ethernet, DDR, and SerDes
• Conduct time-domain and frequency-domain simulations using HFSS, ADS, Sigrity, or CST
• Support hands-on lab validation using VNA, TDR, BERT, and high-speed oscilloscopes
• Correlate simulation results with lab measurements to identify margin gaps and debug issues
• Collaborate with silicon, package, and board design teams to optimize I/O channel performance
• Review schematics, layouts, and validation data for hardware components

Requirements

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, or a related field
• Strong experience in signal integrity for high-speed digital systems
• Hands-on measurement expertise with VNAs, TDRs, BERTs, and high-speed oscilloscopes
• Experience analyzing S-parameters, eye diagrams, jitter, and crosstalk
• Knowledge of high-speed interfaces such as PCIe Gen4/5/6, Ethernet, and DDR
• Proficiency with SI/PI simulation tools like HFSS, ADS, Sigrity, or SPICE

Preferred Qualifications

• Experience in hyperscale, data center, or cloud infrastructure environments
• Knowledge of thermal and mechanical considerations impacting SI/PI performance
• Experience with lab automation or measurement methodology development
• Proficiency in Python or MATLAB for simulation and data analysis

About the Company

Graphcore is a leader in developing advanced compute platforms, offering the opportunity to work on complex, high-performance hardware alongside experienced technical leaders.