High-Speed Optoelectronics Principal Engineer

3 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 developing cutting-edge high-speed photonics products for AI infrastructure and High Performance Computing. If you are passionate about photonics and want to work in a dynamic, fast-paced start-up environment, we invite you to explore this opportunity.

About the Job

We are seeking an experienced Principal Engineer to join our growing team, responsible for designing and developing our 800G and beyond optical transceiver products. This role will involve collaborating with our technical teams to deliver Lumilens' family of optical transceiver solutions to market.

Key Responsibilities:

  • Work closely 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 the integration of digital-optical functions for next-generation optical transceivers.
  • Collaborate with PCB layout engineers to complete high-speed interconnect designs.
  • Work with transceiver and package design engineers and suppliers to define chip and package SI/PI goals.
  • Plan and execute engineering verification tests, including the design of required test boards.
  • Support performance characterization of optical transceivers, including detailed experimental validation of constituent sub-components, such as analog, control, and DSP ASICs.

Required / Desired Knowledge, Skills, and Abilities:

  • Master's or Ph.D. in Electrical Engineering/Physics or equivalent education.
  • 7+ years of experience in 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, for lab validation.
  • Excellent communication and collaboration skills.
  • Candidates will be required to spend the majority of their time in our San Jose, California office.

Equal Employment Opportunity:

Lumilens is an equal opportunity employer and welcomes applications from diverse candidates. We are committed to creating an inclusive work environment and consider all qualified applicants without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance.

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