Senior Signal Integrity Engineer

Intelliswift - An LTTS Company; Sunnyvale (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Intelliswift - An LTTS Company is seeking a Senior Signal Integrity engineer to lead end-to-end SI analysis and high-speed PCB design. You will define layout guidelines, perform lab validation, and drive improvements in engineering workflows for next-generation interfaces.

The role requires 5+ years in SI or high-speed hardware design, with deep knowledge of impedance matching, crosstalk, and noise mitigation. CA-based on-site work with advanced test equipment expected.

Qualifications

• Analyze and simulate high-speed interfaces (PCIe, Ethernet, SerDes) with SI modeling.
• Establish layout guidelines, stack-up strategies, routing rules for multi-layer boards.
• Perform hands-on hardware characterization using lab equipment.
• Refine SI methodologies and integrate new high-speed data transmission tech into future architectures.
• 5+ years in Signal Integrity or high-speed PCB design.
• Deep knowledge of impedance matching, crosstalk, attenuation, and noise mitigation.

Responsibilities

• Perform end-to-end SI analysis and electromagnetic modeling for high-speed buses.
• Guide PCB design guidelines and routing to minimize impedance mismatches.
• Validate designs in the lab with VNAs, oscilloscopes, and TDRs.
• Innovate engineering processes and integrate new high-speed technologies into architectures.

Skills

Signal Integrity

PCB Design

Hardware Engineering

Impedance Matching

Crosstalk Mitigation

Noise Mitigation

Ethernet PCIe SerDes

Lab Testing

Education

B.S. or M.S. in Electrical Engineering

Tools

Ansys HFSS

CST

Keysight ADS

HyperLynx

Cadence Allegro

Job description

Core Qualifications & Skills

Analyze & Simulate High-Speed Interfaces: Perform end-to-end SI analysis and electromagnetic modeling for high-speed buses (PCIe, Ethernet, SerDes) using industry-standard simulation tools.

Guide PCB Design & Layout: Establish layout guidelines, stack-up strategies, and routing rules for complex, multi-layer boards to minimize impedance mismatches, crosstalk, and noise.

Validate in the Lab: Bring designs from concept to reality by performing hands-on hardware characterization and testing using VNAs, oscilloscopes, TDRs, and protocol analysers.

Innovate Engineering Processes: Help refine SI methodologies, improve design workflows, and integrate emerging high-speed data transmission technologies into future architectures.

Experience: 5+ years in Signal Integrity, high-speed PCB design, or hardware engineering.

Technical Mastery: Deep knowledge of signal transmission principles (impedance matching, crosstalk, attenuation, noise mitigation) and high-speed buses (Ethernet, PCIe, SerDes).

Software Tools: Proficiency with SI simulation platforms such as Ansys (HFSS/CST), Keysight ADS, HyperLynx, and Cadence Allegro.

Lab Expertise: Proven ability with advanced lab testing tools (VNA, Oscilloscope, TDR, Protocol Analyzers).

Education: B.S. or M.S. in Electrical Engineering, Electronics Engineering, or a related technical field.