Power Integrity Engineer

We are looking for a Power Integrity (PI) Engineer to join our platform electrical engineering team. In this role, you will own the power integrity methodology for high-power PCB and system designs — from early architecture through final release — ensuring robust power delivery to high-performance ASICs and supporting components across all operating conditions.

Responsibilities

Perform pre- and post-layout PDN analysis for high-current ASIC power rails: target impedance profiling, decoupling capacitor selection and placement optimization, and plane resonance analysis.; Execute DC IR-drop and current density simulations; define copper weight, plane shapes, via stitching, and layer allocation requirements for PCB designers.; Conduct AC impedance analysis from VRM output through package and die, including ESR/ESL modeling of the full decoupling network.; Develop and validate VRM models; analyze load transient response, AVP/load-line behavior, and multiphase converter performance against ASIC power specifications.; Perform power-plane thermal co-simulation and work with mechanical teams on thermal-electrical tradeoffs for high-current delivery.; Drive design rule checks for PI compliance; work with layout teams in Cadence Allegro / Sigrity PowerDC/PowerSI or Ansys SIwave.; Collaborate with power design, PCB layout, and ASIC/package teams to define power delivery architecture and review guidelines early in the product lifecycle.; Support bring-up, debug rail-level issues (droop, ripple, transient excursions), and document root-cause findings with clear corrective actions.; Develop and maintain simulation-to-hardware correlation databases to continuously improve PDN modeling accuracy.

Requirements

B.S. or M.S. in Electrical Engineering or a closely related discipline.; 5+ years of hands-on PI experience on high-current, high-performance designs (ASIC/CPU/GPU power delivery, server boards, or accelerator platforms).; Proficiency with industry PI EDA tools (Ansys SIwave, Cadence Sigrity PowerDC/PowerSI/OptimizePI, or equivalent).; Strong understanding of target impedance methodology, decoupling network design, plane resonances, and anti-resonance mitigation.; Experience with DC IR-drop analysis, current density limits, and via/plane current-carrying capacity.; Working knowledge of VRM fundamentals: buck converter operation, multiphase design, transient response, and load-line/AVP concepts.; Working knowledge of multi-layer PCB stack-up design and power plane allocation strategies.

Nice to have

Prior work in data center, AI/ML accelerator, networking, or high-performance computing (HPC) hardware environments.; Experience with vertical power delivery, high-current lateral delivery tradeoffs, or 48V-to-point-of-load architectures.; Package-level PDN co-analysis and experience working with die/package power models from ASIC teams.; Experience scripting automated PI simulation flows using Python or MATLAB to reduce manual simulation turnaround time.

Benefits

Medical, dental, and vision packages with generous premium coverage; $500 per month credit for waiving medical benefits; Housing subsidy of $2k per month for those living within walking distance of the office; Relocation support for those moving to San Jose (Santana Row); Various wellness benefits covering fitness, mental health, and more; Daily lunch and dinner in our office; Unlimited compute budget subject to ROI justification.