Power Integrity Engineer
LightmatterVisit Lightmatter website
Lightmatter is a photonic-computing company developing optical interconnects and light engines for AI-scale data centers.
Mountain View, United States
Funding history
About Lightmatter
Founded in 2017 by MIT researchers, Lightmatter develops photonic infrastructure for AI, including its Passage interconnect platform and Guide light engine.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will design and analyze power delivery networks for digital and analog SoC domains. You will model regulators, simulate supply-rail behavior, extract PCB and package impedance profiles, perform lab measurements, and support layout, documentation, and system-level power-integrity studies.
Requirements
- Master’s or Ph.D. in Electrical Engineering or a related field
- 3+ years of experience in power delivery and power-integrity analysis for high-performance CPUs and compute SoCs
- Proficiency with PowerSI, PowerDC, IDEM, H-Spice, and Keysight ADS
- Experience with DC-DC converter design
- Experience with PCB design and power-integrity layout considerations
- Problem-solving and debugging skills for power-integrity issues
- Knowledge of 2D, 2.5D, or 3D packaging technologies and PDN challenges
- Familiarity with oscilloscopes and network analyzers
- Proficiency in Skill, TCL, Python, or MATLAB for automation and post-processing
Responsibilities
- Design and analyze power delivery networks for digital and analog SoC domains
- Model regulator switching ripple and transient response to support component selection
- Extract PCB and package impedance profiles and generate N-port models
- Perform time-domain and frequency-domain simulations of supply rails
- Conduct lab measurements using programmable loads and oscilloscopes
- Collaborate with hardware designers, layout engineers, and system integrators on PDN improvements
- Document analysis results, test procedures, and design recommendations
- Review PDN layout constraints and provide feedback based on simulation and measurement data
- Support system-level power-integrity tradeoff studies and architectural evaluations
Benefits
- Health care plan including medical, dental, and vision coverage
- Retirement savings matching program
- Life insurance including basic, voluntary, and AD&D coverage
- Vacation, sick time, and public holidays
- Paid family leave
- Short-term and long-term disability coverage
- Commuter benefits
- Flexible hybrid workplace model
- Equity grants for eligible full-time employees