Signal Integrity Engineer (Boston and Mountain View)

As a Signal Integrity Engineer at Lightmatter, you will be responsible for developing and implementing signal integrity strategies for high-speed interfaces like PCIe and SerDes. You will perform signal integrity analysis, collaborate with cross-functional teams, and conduct detailed measurements using advanced lab equipment, ensuring all our products meet stringent signal and power integrity standards.

To qualify for the Signal Integrity Engineer position at Lightmatter, you should have a degree in Electrical Engineering or a related field, coupled with a minimum of 8 years of industry experience in signal integrity analysis for high-speed interfaces. Proficiency in simulation tools, strong knowledge of transmission line theory, and familiarity with PCB design are also essential.

At Lightmatter, Signal Integrity Engineers make extensive use of simulation and analysis tools such as Ansys HFSS and Keysight ADS. Additionally, you'll work with advanced lab equipment like oscilloscopes, network analyzers, and TDRs to validate design performance and troubleshoot any signal integrity issues.

The Signal Integrity Engineer role at Lightmatter is unique because it combines cutting-edge technology with innovative package and system architectures. You'll have the opportunity to work on the industry's first 3D-stacked photonics engine, solving complex interactions across digital, analog, and photonics domains, thus impacting advanced AI and HPC workloads.

As a Signal Integrity Engineer at Lightmatter, you can expect a competitive compensation package, including comprehensive health care plans, a retirement savings matching program, generous time off, paid family leave, and a flexible hybrid workplace model. Additionally, you'll have access to training and development opportunities to enhance your skills.

In your response, detail specific projects where you've implemented strategies for high-speed interfaces, discussing the challenges you faced and how you overcame them using your technical expertise.

Share your systematic approach, including initial simulations, team collaboration, and the tools you use to ensure that designs meet signal integrity requirements throughout the development lifecycle.

Discuss your experience with tools like Ansys HFSS or Keysight ADS, highlighting how they have helped in analysis and what specific features you find most beneficial for signal integrity analysis.

Provide an example of a complex issue, explaining the steps you took to diagnose the problem and the solutions you implemented to correct it, showcasing your problem-solving skills.

Explain your understanding of EMC principles as they relate to signal integrity, and describe the strategies you employ during design and testing phases to meet these critical standards.

Detail how you communicate signal integrity requirements effectively to PCB layout engineers and how you work together to ensure optimal designs that meet high-speed interface demands.

Discuss any scripts or software tools you've developed to streamline simulation flows, and explain how this automation has improved efficiency or accuracy in your workflows.

Highlight your expertise in transmission line theory and its practical applications in high-speed design, particularly how it impacts impedance matching and routing techniques.

Describe your approach to documentation, emphasizing how you ensure clarity and accessibility for stakeholders, and share examples of how you communicate complex analysis effectively.

Share your insights on recent trends or technologies in the field of signal integrity testing that you believe will shape the future of high-speed interface design, demonstrating your passion for the industry.