Senior Signal Integrity / Power Integrity Engineer (Hardware)

TL;DR

Senior Signal Integrity / Power Integrity Engineer (Hardware): Designing and simulating high-speed interconnects for next-generation Ethernet and optical networking platforms with an accent on 112G/224G PAM4 SerDes technologies. Focus on advanced 3D EM simulation, PCB material characterization, and optimizing power delivery for hyperscale, AI, and cloud networking systems.

Location: Must be based in Santa Clara, CA, USA

Salary: $180,000–$275,000 (Base pay)

Company

hirify.global is an industry leader in data-driven, client-to-cloud networking for large data centers, campus, and routing environments.

What you will do

• Perform 3D EM design and simulation of high-speed interconnects using Ansys HFSS, SiWave, and Cadence Sigrity.
• Develop and validate test vehicles to characterize next-generation PCB materials and packages.
• Conduct S-parameter and time-domain measurements using VNA, TDR, and BERT equipment.
• Perform link-level analysis for advanced standards like Ethernet 800G/1.6T and PCIe Gen6/Gen7.
• Collaborate with hardware and mechanical teams to optimize stack-up, breakout, and routing strategies.
• Support bring-up and debug of production boards to root-cause SI/PI issues.

Requirements

• BS/MS/PhD in Electrical Engineering, Physics, or related field.
• Solid understanding of signal integrity theory, S-parameter analysis, and channel modeling.
• Hands-on experience with 2.5D/3D EM solvers such as Ansys HFSS, SiWave, Sigrity, or CST.
• Strong lab skills using oscilloscopes, VNAs, TDRs, and BERTs.
• Experience analyzing and simulating 56G/112G/224G PAM4 and NRZ serial links.
• Familiarity with advanced PCB materials and manufacturing constraints.

Nice to have

• Experience with co-packaged optics or chiplet-based architectures.
• Knowledge of EMI/EMC considerations in photonic-electronic systems.
• Understanding of thermal and mechanical effects on SI/PI performance.
• Experience working with fabrication vendors and contract manufacturers.

Culture & Benefits

• Competitive compensation including base salary, bonus, and equity.
• Comprehensive benefits package including medical, dental, and vision insurance.
• Focus on diversity, inclusion, and work-life balance.
• Opportunities to work on cutting-edge AI and cloud networking technologies.