Principal Engineer

3 weeks ago

San Jose, California, United States Lumilens Full time

About Lumilens

We are a well-funded start-up backed by prominent investors and industry leaders, focused on creating the next generation of 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 Role

We are seeking an experienced Principal Engineer for High-Speed Optoelectronics to join our growing team. This position will be responsible for designing and developing our 800G and beyond optical transceiver products. You will collaborate 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, which will include detailed experimental validation of the constituent sub-components, including analog, control, and DSP ASICs.

Required / Desired Knowledge, Skills, and Abilities:

  • MS or PhD in Electrical Engineering/Physics or equivalent education.
  • 7+ years of experience in developing optical transceivers with market success.
  • Knowledgeable of high-speed optoelectronic devices (e.g. lasers, detectors, modulators).
  • Familiar with high-speed ICs, such as DSP, modulator drivers, transimpedance amplifiers.
  • Experience characterizing and troubleshooting high-speed optical transceivers.
  • Experienced user of HFSS or CST.
  • Multi-disciplinary background with a demonstrated record of innovation.
  • Experienced with high-speed lab equipment such as TDR, VNA, spectrum analyzer for lab validation.
  • Good 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. All qualified applicants will receive consideration for employment 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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