Principal Signal and Power Integrity Engineer

Delos Data

Senior SI/PI Engineer modeling electrical performance across advanced packages and interconnects for AI data centers. Collaborating with teams to ensure signal fidelity and power delivery.

Posted 6/11/2026full-timePalo Alto • California • 🇺🇸 United StatesLead💰 $180,000 - $240,000 per yearWebsite

Tech Stack

Tools & technologies

PythonRuby on Rails

About the role

Key responsibilities & impact

Perform pre‑ and post‑layout SI simulations (eye diagrams, crosstalk, insertion/return loss) for UCIe, D2D, SerDes, and Ethernet links.
Model PDNs for low‑voltage, high‑current rails; run AC/DC, impedance, and IR‑drop simulations; come up with decoupling cap selection.
Build and validate S‑parameter, IBIS‑AMI, and behavioral models for packages, PCBs, sockets and cables.
Guide PCB/package layout teams on stack‑ups, routing constraints, return‑path continuity, and decoupling strategy.
Conduct bring‑up, VNA/TDR measurements, oscilloscope validation, and correlate hardware results with simulations.
Collaborate with IC design, packaging, and board teams to define electrical requirements and debug issues.
Evaluate new SI/PI methodologies, materials, and tools for next‑generation architectures.
Evaluate emerging interconnect technologies such as CPC, CPO, and establish electrical-optical-electrical end-to-end simulation and validation methodologies.

Requirements

What you’ll need

B.S./M.S. in Electrical Engineering or related field
Deep understanding of EM theory, transmission lines, and high‑speed signaling
Expertise with SI/PI tools (Keysight ADS, Ansys HFSS, Cadence Sigrity/PowerSI)
Experience with UCIe, D2D, SerDes, or Ethernet interfaces
Knowledge of PCB materials, stack‑ups, and constraint‑driven design
Hands‑on experience with VNA, TDR, oscilloscopes
Python/Matlab scripting for automation is a plus.

Benefits

Comp & perks

meaningful equity
benefits
401k

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

SI simulationsPI simulationsAC/DC simulationsimpedance simulationsIR-drop simulationsS-parameter modelingIBIS-AMI modelingbehavioral modelingPython scriptingMatlab scripting

Soft Skills

collaborationguidanceproblem-solving