Senior System Signal Integrity Engineer

Summary
OSI Engineering is partnering with our client to find an experienced Senior System Signal Integrity Engineer to support the development of next-generation consumer device products. This is an exciting opportunity to work on cutting-edge high-speed digital designs, collaborating with world-class engineering teams responsible for delivering industry-leading hardware.
If you're passionate about signal integrity, high-speed interfaces, and solving complex system-level challenges, this role offers the opportunity to make a direct impact on products used by millions around the world.

Responsibilities

Perform system-level Signal Integrity (SI) design, analysis, and validation for next-generation Mac products.
Analyze and optimize high-speed SerDes links, including transmitter and receiver equalization techniques such as FFE, CTLE, DFE, VGA gain, CDR behavior, link training algorithms, and internal eye margining.
Support signaling technologies including NRZ, PAM3, and PAM4.
Conduct statistical channel analysis across multiple channel variants and validate end-to-end link performance.
Review PCB and flex layouts, including trace routing, impedance control, and return path analysis.
Develop and evaluate interconnect models using S-parameters, W-elements, and other modeling techniques.
Perform channel modeling and simulation using industry-standard SI tools.
Support compliance testing and passive channel/component characterization for high-speed interfaces.
Perform system-level transient analysis using IBIS-AMI, HSPICE, Spectre, AMS, Simplis, and related simulation models.
Utilize measurement equipment including Vector Network Analyzers (VNA) and Time Domain Reflectometry (TDR) for validation, calibration, and de-embedding.
Develop scripts using Matlab, Python, Perl, or similar languages to improve engineering workflows.
Create clear technical documentation and collaborate effectively with cross-functional engineering teams.

Requirements

Strong system-level Signal Integrity experience supporting high-speed digital designs.
Deep understanding of SerDes architectures, including:
FFE
CTLE
DFE
VGA Gain
Clock Data Recovery (CDR)
Link training algorithms
Internal eye margining
Experience working with NRZ, PAM3, and PAM4 signaling technologies.
Expertise with industry-standard interfaces including:
USB4
USB3.1 / USB2
PCIe
Thunderbolt
DisplayPort
HDMI
MIPI
Ethernet
SD
Experience supporting parallel interfaces such as:
DDR
LPDDR
GDDR
NAND
Other synchronous interfaces
Strong understanding of transmitter and receiver compliance testing.
Experience with PCB materials, flex materials, connector design, and high-speed interconnect design.
Proficiency with SI simulation tools such as:
Ansys HFSS
Keysight ADS
SIwave
PowerSI
Working knowledge of:
IBIS-AMI
HSPICE
Spectre
AMS
Simplis
Experience using laboratory measurement equipment including VNA and TDR is preferred.
Programming or scripting experience using Matlab, Python, Perl, or similar languages is preferred.
Excellent communication, documentation, and problem-solving skills.
Ability to work independently while collaborating effectively with cross-functional engineering teams.

Education
Ph.D. preferred with 3+ years of relevant industry experience, or
Master's degree required with 5+ years of relevant industry experience.

Location
Hybrid — Cupertino, CA or Austin, TX

Duration
12-month contract

Salary Range
$78-$88 DOE
Interested?
Submit your resume to jobs@OSIengineering.com.
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