Principal Engineer

6 days ago


San Jose, California, United States Lumilens Full time

About Lumilens

We are a well-funded start-up backed by prominent investors, focused on building the next generation of high-speed photonics products for connectivity of AI infrastructure and High Performance Computing.

About the Job

We are seeking an experienced Principal Engineer for High-Speed Optoelectronics to join our growing team. This position will own the design and development of our 800G and beyond optical transceiver products.

Key Responsibilities:

  • Collaborate with photonic chip and subassembly design teams to co-develop high-speed RF interfaces.
  • Support the selection and characterization of RFICs.
  • Perform model extraction, frequency/time domain electrical simulations, device characterization, and debug to validate high-speed interface performance.
  • Enable integration of digital-optical functions for next-generation optical transceivers.
  • Work with PCB layout engineers to complete high-speed interconnect designs.
  • Collaborate with transceiver and package design engineers and suppliers to define chip and package SI/PI goals.
  • Plan and execute engineering verification tests, including design of required test boards.
  • Support performance characterization of optical transceivers, including detailed experimental validation of constituent sub-components.

Requirements:

  • MS or PhD in Electrical Engineering/Physics or equivalent education.
  • 7+ years of experience developing optical transceivers with market success.
  • Knowledge of high-speed optoelectronic devices, such as lasers, detectors, and modulators.
  • Familiarity with high-speed ICs, including DSP, modulator drivers, and transimpedance amplifiers.
  • Experience characterizing and troubleshooting high-speed optical transceivers.
  • Proficiency in using HFSS or CST.
  • Multi-disciplinary background with a demonstrated record of innovation.
  • Experience with high-speed lab equipment, such as TDR, VNA, and spectrum analyzer.
  • Excellent communication and collaboration skills.

Equal Employment Opportunity:

Lumilens is an equal opportunity employer and welcomes applications from diverse candidates.



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