Graphcore

Graphcore

Senior Signal Integrity Engineer

Austin, Texas, United States · Senior

Sponsorship not specifiedDetected 13 days ago
PythonMATLABCloud PlatformsNLPANSYSCadenceElectrical EngineeringCommunication

About the role

  • End-to-end signal integrity analysis for blade- and rack-level system architectures.
  • 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.

Responsibilities

  • Analyze and optimize high-speed and low-speed I/O interfaces, including PCIe Gen4/5/6, Ethernet, DDR, SerDes, 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.
  • 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.
  • We welcome people of different backgrounds and experiences; we're committed to building an inclusive work environment that makes Graphcore a great home for everyone.

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 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, SerDes, and related I/O technologies.
  • Experience with SI/PI simulation tools such as HFSS, ADS, Sigrity, CST, SPICE, or equivalent.
  • Strong communication skills, including the ability to produce clear validation reports, present technical findings, and work effectively across multi-functional engineering teams.

Nice to have

  • 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.
  • Tools / Technologies
  • Measurement: VNA, TDR, BERT, high-speed oscilloscopes
  • Simulation: Ansys HFSS, Keysight ADS, Cadence Sigrity, CST, SPICE

Compensation

  • In addition to a competitive salary, Graphcore offers flexible working and a comprehensive benefits package designed to support your health, wellbeing and financial future.

Benefits

  • This is an opportunity to work on complex, high-performance compute platforms while partnering with experienced technical leaders, ODMs, and interconnect vendors.
  • In addition to a competitive salary, Graphcore offers flexible working and a comprehensive benefits package designed to support your health, wellbeing and financial future.
  • We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.

Company info

  • 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.

Equal opportunity

  • We offer an equal opportunity process and understand that there are visible and invisible differences in all of us.
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This listing is sourced directly from Graphcore's careers page and normalized into a canonical job model.