Full-Time

Staff Power Integrity Engineer

Bay Area and Boston

Posted on 10/2/2024

Lightmatter

Lightmatter

51-200 employees

Develops photonic supercomputers for AI tasks

Automotive & Transportation
Hardware
AI & Machine Learning

Compensation Overview

$175k - $225kAnnually

Senior

Boston, MA, USA

Flexible, hybrid workplace model.

Category
Electrical Engineering
Power Systems Engineering
Requirements
  • Master's in Electrical Engineering or relevant field with 6 years of relevant experience, or Bachelor’s degree with 8 years of related experience in power delivery and power integrity analysis for high performance CPUs and compute SoCs.
  • Proficiency in using simulation and analysis tools for power integrity, including PowerSI, PowerDC, H-Spice, and ADS.
  • Experience with DC-DC converter design.
  • Experience with PCB design and layout considerations for power integrity, including layer stack-up assignment, power plane partitioning, capacitor selection and placement, and microvia/PTH design.
  • Strong problem-solving and debugging skills for power integrity-related issues.
  • Excellent communication skills, both verbal and written, to effectively collaborate with cross-functional teams and present findings to stakeholders.
  • Ability to work independently and manage multiple projects simultaneously.
Responsibilities
  • Design the end-to-end power delivery network (PDN) for digital and analog SoC domains, from the voltage regulator to the on-chip decoupling.
  • Model voltage regulator switching ripple, bandwidth, and transient response and aid in the selection of power stages, controllers, and associated passives.
  • Simulate PCBs and packages in commercial 2.5D electromagnetics simulators to extract N-port models and subsequently, impedance profiles.
  • Perform time domain simulations of supply rails to characterize worst case droops and overshoots.
  • Perform detailed power integrity measurements and characterization using lab equipment, for example, using programmable loads to measure the transient response of the power delivery network.
  • Collaborate with cross-functional teams such as hardware designers, PCB layout engineers, system architects, and power and performance engineers to provide power integrity guidance and support throughout the product development lifecycle.
  • Contribute to power integrity design reviews, providing technical expertise and recommendations to ensure optimal power integrity performance, and adherence to design specifications.
  • Document and communicate analysis results, design guidelines, and recommendations to stakeholders, including design teams, management, and customers.
  • Participate in cross-functional teams to define and influence system-level architecture decisions that impact power integrity, ensuring optimal performance and scalability.

Lightmatter develops photonic supercomputers that use light for processing, significantly enhancing the speed and energy efficiency of computing tasks. Their technology is particularly aimed at accelerating artificial intelligence (AI) applications, achieving a tenfold increase in processing speed while consuming 90% less energy than traditional electronic processors. Lightmatter collaborates with prestigious institutions like Harvard and Boston University to improve electro-photonic systems, especially for autonomous vehicles. Unlike competitors that rely solely on electronic processing, Lightmatter's focus on photonic computing sets it apart in the high-tech market. The company's goal is to provide advanced computing solutions that meet the growing demands of industries such as AI and self-driving cars, generating revenue through hardware sales, software licenses, and strategic partnerships.

Company Stage

Series C

Total Funding

$422.2M

Headquarters

Boston, Massachusetts

Founded

2017

Growth & Insights
Headcount

6 month growth

24%

1 year growth

49%

2 year growth

87%
Simplify Jobs

Simplify's Take

What believers are saying

  • The $155M in new funding will accelerate Lightmatter's growth and expand its photonic chip deployments, potentially leading to significant advancements in AI hardware.
  • Strong investor support from industry giants like Google Ventures and Hewlett Packard Enterprise provides financial stability and strategic partnerships.
  • Lightmatter's innovative photonic AI hardware positions it at the forefront of next-generation computing technologies, offering employees the chance to work on groundbreaking projects.

What critics are saying

  • The nascent stage of photonic computing technology could lead to unforeseen technical challenges and slower market adoption.
  • High expectations from substantial funding and a $1.2B valuation may pressure the company to deliver rapid results, potentially leading to operational strain.

What makes Lightmatter unique

  • Lightmatter focuses on photonic computing, a cutting-edge technology that uses light for data processing, offering significant speed and energy efficiency advantages over traditional electronic chips.
  • The company's strong backing from prominent investors like GV, HPE, and Lockheed Martin underscores its credibility and potential in the highly competitive tech landscape.
  • Lightmatter's valuation at $1.2B and substantial funding rounds highlight its rapid growth and market confidence in its innovative approach.

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