Senior Signal Integrity and Power Integrity (SI / PI) Engineer

Senior Signal Integrity and Power Integrity (SI / PI) Engineer

We're looking for a highly skilled Signal Integrity (SI) and Power Integrity (PI) Engineer to join our team, focusing on high-speed electrical wireline systems.

The successful candidate will play a critical role in designing, analyzing, and optimizing high-performance interconnects, ensuring signal and power integrity in high-speed package, chip-on-board, PCB, and cable designs.

What You'll Do

Conduct SI / PI simulations and analysis for high-speed interfaces (e.g., 106Gbps and higher PAM4 differential signaling)

Develop simulation models based on electromagnetic analysis for PCB traces, vias, connectors, cables, IC packages, and photonics interconnects to ensure optimal SI / PI performance

Perform frequency-domain and time-domain analysis, including S-parameters, impedance matching, crosstalk, return loss, insertion loss, and power supply AC noise analysis

Work closely with cross-functional IC design teams to optimize high-speed interface layout floorplans to optimize SI / PI performance across a wide range of different interconnect technologies

Define design guidelines and develop reference designs for high-speed interconnects and power distribution networks (PDN)

Work closely with internal teams and external partners for hardware design, PCB layout, and manufacturing to ensure optimal SI / PI performance

Validate SI / PI performance through lab measurements using oscilloscopes, vector network analyzers (VNAs), time-domain reflectometry (TDR), and other test equipment

Identify and mitigate signal degradation issues such as reflections, jitter, and noise coupling

Support package and PCB stack-up design, material selection, and layout optimization for high-speed signal routing

Drive improvements in design methodologies and best practices for high-speed electrical systems

What You'll Need

Masters / PhD in Electrical / Computer Engineering, Engineering Science, or a related field

Previous experience with electromagnetic modeling and simulation

Strong understanding of microwave / RF and SI / PI fundamentals, including transmission line theory, s-parameters, crosstalk, channel simulation, PDN, and EMIR

Proficiency with EDA Tools : KeySight ADS, Ansys Electronic Desktop (HFSS and SIwave), Cadence Sigrity PowerSI / DC, or other similar simulation / modeling tools

Ability to interpret s-parameters, impedance profiles, and power distribution network characteristics

Experience with high-speed IC package and PCB design

Proficiency in using lab equipment such as oscilloscopes, TDR, VNA, and spectrum analyzers for signal integrity and power integrity validation

It'd Be Amazing If You Had

Familiarity with IEEE 802.3 (Ethernet) and OIF standards

Experience with high-speed (e.g., 106Gbps and higher) NRZ and PAM4 SerDes

Understanding of digital and analog equalization and familiar with using IBIS-AMI model in channel simulation

Scripting knowledge (Python, Matlab, etc.) for automation of SI / PI simulations

We have a flexible work environment to support and help employees thrive in personal and professional capacities. You’ll also be eligible for competitive benefits, including :

Comprehensive health plan

Health Spending Account (HSA)

Wellness Spending Account (WSA)

Employee Assistance Program (EAP)

Paid Vacation

Paid Holidays

Parental Leave Top-Up Program

Alphawave Semi is an equal opportunity employer, welcoming all applicants regardless of age, gender, race, disability, or other protected characteristics. We value diversity and provide accommodations during the recruitment process.

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