Senior Signal Integrity Engineer

About the Role

We are seeking a Senior Signal Integrity Engineer to develop, validate, and optimize high-speed signaling solutions across blade- and rack-level architectures for advanced compute platforms. This role sits at the intersection of silicon, package, interconnect, board, and system design, with a strong emphasis on hands‑on measurement, simulation correlation, and cross-functional technical communication.

• 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 Gen4/5/6, Ethernet, DDR, Ser Des, SPI
  , I2C, etc
  . and related interconnects.
• Perform time-domain and frequency-domain simulations using tools such as Ansys HFSS, Keysight ADS, Cadence Sigrity, CST, SPICE
  , or similar.
• Support hands-on lab validation using VNA, TDR, BERT, and high-speed oscilloscopes
  .
• Correlate simulation results with lab measurements to identify margin gaps, debug issues, and improve design methodology.
• Collaborate with silicon, package, board, connector, cable, and system design teams to optimize I/O channel performance.
• Work with interconnect vendors and ODMs to guide board layout, stack-ups, routing rules, and system design decisions.
• Review schematics, layouts, simulation results, and validation data for blade, backplane, and rack-level hardware.
• Prepare and communicate clear validation reports, measurement summaries, debug findings, and technical recommendations to internal teams, vendors, and senior technical stakeholders.

• 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 using VNAs, TDRs, BERTs, and high-speed oscilloscopes
  .
• Experience measuring and analyzing S-parameters, impedance profiles, eye diagrams, jitter, timing margins, insertion loss, return loss, and crosstalk
  .
• Knowledge of high-speed interfaces such as PCIe Gen4/5/6, Ethernet, DDR, Ser Des
  , and related I/O technologies.
• Experience with SI/PI simulation tools such as HFSS, ADS, Sigrity, CST, SPICE
  , or equivalent.
• Ability to correlate lab measurements with simulations and use data to guide design decisions.
• Strong communication skills, including the ability to produce clear validation reports, present technical findings, and work effectively across multi‑functional engineering teams.

• Experience in hyperscale, data center, cloud infrastructure, or advanced compute hardware environments
  .
• Experience with blade, backplane, board-to-board, cable, or rack-level interconnect architectures.
• Knowledge of thermal and mechanical considerations that impact SI/PI performance.
• Experience with calibration, de-embedding, fixture design, lab automation, or measurement methodology development.
• Experience using Python, MATLAB
  , or similar scripting languages for simulation automation, measurement automation, and data analysis.

Measurement: VNA, TDR, BERT, high-speed oscilloscopes
Simulation: Ansys HFSS, Keysight ADS, Cadence Sigrity, CST, SPICE
Interfaces: PCIe Gen4/5/6, Ethernet, DDR, Ser Des, SPI, high-speed interconnects
Analysis: S-parameters, eye diagrams, jitter, timing margins, impedance control, crosstalk, insertion loss, return loss, de-embedding, measurement-to-simulation correlation