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Sr. Signal Integrity / Power Integrity Engineer

Amazon· Annapurna Labs / Machine Learning Hardware
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Austin, TX$159.2k - $215.3kfull-timePosted 1mo ago

About the role

Senior SI/PI Engineer focused on defining, designing, and validating AWS next-generation ML ASICs, with responsibilities spanning end-to-end SI/PI analyses, PCB/stack-up optimization, and cross-functional collaboration.

Responsibilities

  • Perform end-to-end high-speed channel simulations to ensure signal integrity across complex designs.
  • Conduct SI/PI analysis to optimize PCB layouts, minimizing losses and signal degradation.
  • Utilize simulation tools such as ADS, MATLAB, Cadence, HFSS, and others to evaluate performance and troubleshoot issues.
  • Work with PCIe protocols and equalization techniques (DFE, CTLE, FFE) to optimize high-speed interfaces.
  • Analyze clock distribution and jitter, ensuring signal timing and integrity across designs.
  • Collaborate with PCB layout and hardware design teams to define optimal stack-ups and trade-offs for manufacturing feasibility and performance.
  • Identify and mitigate PCB manufacturing issues, ensuring high production yield and reliability.
  • Work closely with cross-functional teams, including hardware design, validation, and product engineering, to align on requirements and trade-offs.

Qualifications

  • Deep understanding of SI concepts and strong analytical skills in signal and power integrity.
  • Hands-on experience with simulation tools such as ADS, MATLAB, Cadence, HFSS, and others.
  • Proficiency in high-speed channel simulations, including system-level modeling and validation.
  • Experience with PCIe protocols and equalization methods (DFE, CTLE, FFE).
  • Knowledge of clock distribution and jitter analysis for high-speed designs.
  • Expertise in PCB layout and board manufacturing processes, including identifying and mitigating potential issues.
  • Hands-on experience in stack-up design, including dielectric material selection, impedance control, and layer optimization.

Skills

Required:SI/PI analysisHigh-speed channel simulationsPCIe protocols and equalization (DFE, CTLE, FFE)Clock distribution and jitter analysisPCB layout and manufacturing

Benefits

  • Health insurance (medical, dental, vision, prescription)
  • Basic Life & AD&D insurance with option for Supplemental life plans
  • Employee Assistance Program (EAP)
  • Mental Health Support
  • Flexible Spending Accounts
  • Adoption and Surrogacy Reimbursement coverage
  • 401(k) matching
  • Paid time off
  • Parental leave
Last updated Oct 25, 2026. Interested? Apply on the company site.

About Amazon

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