SI/PI Engineer

About this role

Etched seeks a Signal Integrity and Power Integrity Engineer to design and validate high-speed PCB and system interfaces for AI inference hardware. You'll own SI/PI methodology from architecture through production, ensuring electrical margins are met on multi-gigabit serial links and power delivery networks.

What you'll do

• Perform pre- and post-layout SI simulations for PCIe Gen5/Gen6 and 112G/224G Ethernet interfaces
• Conduct channel analysis, link budgets, and define PCB topology, trace geometry, and via optimization guidelines
• Develop and maintain COM, IBIS, S-parameter, and SPICE models with lab correlation
• Design and analyze power delivery networks including target impedance, decoupling, and IR-drop simulations
• Drive design rule checks and DFI compliance; collaborate with layout and ASIC teams on guidelines
• Support hardware bring-up, debug signal quality issues, and maintain simulation-to-hardware correlation databases

What they're looking for

• Signal integrity and power integrity analysis for high-speed designs
• Cadence Sigrity, Ansys SIwave/HFSS, or Keysight ADS EDA tools
• Transmission line theory, eye-diagram analysis, and jitter decomposition
• PDN modeling and target impedance methodology
• Multi-layer PCB stack-up design and controlled-impedance routing
• Lab instrumentation: VNA, TDR, BERT, oscilloscope techniques
• Python or MATLAB scripting for simulation automation
• Data center, AI accelerator, or HPC hardware experience

Benefits

• Medical, dental, and vision coverage with $500/month waiver credit
• $2,000/month housing subsidy for walking distance to office
• Relocation support to San Jose (Santana Row)
• Wellness benefits covering fitness and mental health
• Daily lunch and dinner provided in office
• Unlimited compute budget subject to ROI justification