Senior SI/PI Engineer — AI Compute Servers

Jobtailor; Fremont (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

Jobtailor in Fremont, CA is seeking an experienced Signal Integrity and Power Integrity engineer to lead high-speed channel design, PDN targeting, and realistic routing rules for PCIe Gen5/Gen6, CXL, NVLink, and DDR5/DDR6 memory.

You will model and simulate with HFSS, ADS, HSPICE, Sigrity; build IBIS-AMI simulations and perform lab validation using oscilloscopes and VNAs to drive corrective design changes across boards, layout, and mechanical teams.

Qualifications

• 6+ years of hands-on SI/PI experience in high-speed servers, GPUs, or related high-speed digital systems.
• Proven delivery of designs into production.
• Familiar with PCIe, CXL, DDR JEDEC and Ethernet electrical specs and compliance methodologies.

Responsibilities

• Lead SI/PI analysis for high-speed interfaces (PCIe Gen5/Gen6, CXL, NVLink, DDR5/DDR6).
• Design and validate PDN impedance, decoupling, and IR-drop strategies.
• Model, simulate, and validate channel performance using HFSS/ADS/HSPICE/Sigrity; develop IBIS-AMI and S-parameter based channels.
• Perform lab validation with oscilloscopes, VNAs, TDRs; correlate simulation to lab data and drive design changes.
• Collaborate with board, layout, and mechanical teams to embed SI/PI rules into stackups and routing.

Skills

Signal Integrity

Power Integrity

Modeling & Simulation

Lab Validation

Cross-functional Collaboration

Education

Bachelor's or Master's in Electrical Engineering

Tools

HFSS

ADS

HSPICE

Sigrity

Job description

Jobtailor in Fremont, CA is seeking an experienced Signal Integrity and Power Integrity engineer to lead high-speed channel design, PDN targeting, and realistic routing rules for PCIe Gen5/Gen6, CXL, NVLink, and DDR5/DDR6 memory.

You will model and simulate with HFSS, ADS, HSPICE, Sigrity; build IBIS-AMI simulations and perform lab validation using oscilloscopes and VNAs to drive corrective design changes across boards, layout, and mechanical teams.