Role Overview

The SI/PI Engineer will be responsible for analyzing, designing, and validating highspeed digital signal and power delivery networks to ensure robust system performance. The role focuses on maintaining signal quality, minimizing noise, controlling impedance, and ensuring reliable power distribution across complex electronic systems.

Role & responsibilities

Signal Integrity (SI)

- Perform SI analysis for highspeed interfaces such as DDR, PCIe, Ethernet, SERDES, LVDS, USB, HDMI, and similar protocols
- Analyze and optimize signal quality parameters including jitter, eye diagram, crosstalk, reflections, and skew
- Define routing constraints, impedance control, termination schemes, and stackup recommendations
- Review PCB layouts and provide SIdriven design feedback to layout teams

Power Integrity (PI)

- Design and analyze Power Delivery Networks (PDN) for low noise and stable voltage delivery
- Perform decoupling capacitor selection, placement, and optimization
- Analyze power plane impedance, IR drop, and transient response
- Support switching regulator and pointofload (POL) power architecture considerations

Simulation & Analysis

- Run prelayout and postlayout SI/PI simulations
- Perform Whatif analysis to assess design tradeoffs
- Correlate simulation results with lab measurements

Validation & Debug

- Support lab validation using highspeed measurement tools




- Analyze and debug SI/PI issues during board bringup
- Drive root cause analysis for signal and power related failures

Documentation & Collaboration

- Create SI/PI guidelines, design checklists, and reports
- Work closely with schematic designers, PCB layout engineers, FPGA/SoC teams, and system engineers
- Participate in design reviews and ensure compliance with signal/power integrity best practices

Preferred candidate profile

Education

- Masters degree in Electronics Engineering, Electrical Engineering, Microelectronics or a related discipline

Experience

- 2-4 years of experience in SI/PI engineering for highspeed digital systems
- Handson experience with PCBlevel SI/PI analysis and validation

Technical Skills

- Expertise in: Transmission line theory, Eye diagram analysis, Crosstalk, EMI/EMC fundamentals, Highspeed timing and jitter analysis
- Robust understanding of: PDN design, Decoupling strategies, Target impedance methodology, DC drop and transient current analysis

Tools (Any of the following)

- SI/PI simulation tools: Ansys SIwave / HFSS, Cadence Sigrity, Keysight ADS
- PCB design tool familiarity: Cadence Allegro / Altium
- Lab equipment: Highbandwidth oscilloscopes, TDR/TDT, Network analyzers

Desirable / NicetoHave

- Knowledge of EMC/EMI compliance and mitigation
- Exposure to advanced packaging, backplanes, or multiboard systems

📌 SI/PI Engineer (Nagpur)
🏢 Solar Defence And Aerospace
📍 Nagpur