Senior Signal Integrity Engineer

Job Title

Senior Signal Integrity Engineer

Role Summary

As a Senior Signal Integrity / Power Integrity engineer you will own SI/PI analysis for high-speed PCBs, packages, and system architectures from early architecture trade-offs through lab bring-up and characterization. Collaborate with hardware, ASIC, SERDES, packaging, and layout teams to develop models, optimize designs, and validate results.

Experience Level

Senior — 12+ years of relevant practical experience in high-speed digital design, signal integrity, and power integrity.

Responsibilities

Primary responsibilities include modeling and simulation, PDN analysis, design optimization, lab validation, and debugging during bring-up.

• Build 2.5D/3D EM models for high-speed channels, package substrates, connectors, and PCB stackups; perform time- and frequency-domain simulations for SerDes and parallel interfaces.
• Perform AC/DC PDN simulations to evaluate impedance targets, transient noise, and IR drop across boards and packages.
• Provide layout constraints, stackup recommendations, routing rules, and optimized package/connector/via designs.
• Validate and correlate simulation models with lab measurements using VNAs, TDRs, BERTs, and high-bandwidth oscilloscopes.
• Support board bring-up and debug SI/PI issues to root-cause signal degradation or power noise.
• Automate simulation flows and data processing using scripting (e.g., Python, TCL).

Requirements

Must-have technical skills and experience.

• 12+ years practical experience in high-speed digital design, signal integrity, and power integrity.
• Strong fundamentals in transmission line theory, S-parameters, crosstalk, jitter, EMI/EMC, and PDN concepts.
• Hands-on proficiency with simulation tools such as Ansys HFSS/SiWave, Cadence Sigrity/Allegro, Keysight ADS, or HSPICE.
• Experience simulating and analyzing high-speed interfaces (e.g., PCIe, 56G/112G/224G SerDes, DDR4/5, HBM).
• Experience operating high-frequency test equipment and performing model-to-hardware correlation (VNAs, TDRs, BERTs, scopes).

Nice-to-have:

• Familiarity with high-speed PCB laminates, stackups, via design, and manufacturing trade-offs.
• Experience writing Python or TCL scripts to automate EDA tools and simulation workflows.

Education Requirements

BS, MS, or Ph.D. in Electrical Engineering, Computer Engineering, or a related technical field.

About the Company

Company: Broadcom

Headquarters: Irvine, California, United States

Broadcom is a global technology leader that designs, develops, and supplies a wide range of semiconductor and infrastructure software solutions. The company is known for its innovations in wireless and broadband communications, enabling a connected world.