Lead Systems Applications Engineer - Optical

Lumilens; San Jose (CA); On-site; Full time

Benefits offered by this job

Competitive salary with significant equity compensation

Comprehensive health, dental, and vision insurance

Flexible time off policy

Dynamic and innovative work environment

Opportunity for rapid career growth

Job summary

A leading photonics startup in San Jose is seeking a highly skilled System Application Engineer to support AI networking switch configurations and optical transceivers. You will troubleshoot and resolve technical issues, conduct customer demos, and collaborate with multifunctional teams. The ideal candidate should have a degree in Electrical Engineering and hands-on experience with DSP. This role offers a competitive salary, equity compensation, health benefits, and opportunities for rapid career growth in a dynamic environment.

Qualifications

• Extensive hands-on experience with DSP, optical transceiver configuration and debugging.
• Deep understanding of optical transceivers on switches.
• Experience working with 800G transceivers and 51.2T switches is a plus.

Responsibilities

• Provide expert support for switch configurations.
• Troubleshoot and resolve issues related to AI networking switches.
• Conduct customer demos and provide hands-on support.

Skills

AI networking switch architecture

Optical transceivers

Problem-solving skills

Communication skills

Customer-facing skills

Education

Bachelor or advanced degree in Electrical Engineering

Tools

DSP

Job description

About Lumilens

At Lumilens we are building the critical photonics infrastructure that powers tomorrow’s AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, Lumilens is unlocking a new era of computing—faster, cooler, and massively more efficient.

We’re a well‑funded startup backed by Mayfield and led by veterans who’ve built and scaled some of the most transformative technologies in the industry. This isn’t incremental innovation—it’s a ground‑floor opportunity to rethink the optical layer from the silicon up. You’ll work alongside a team of world‑class engineers solving some of the hardest challenges in optics, systems, and scale. Every line of code, every design decision, every breakthrough you help deliver will shape the infrastructure of tomorrow.

If you're looking for mission, momentum, and the chance to make an outsized impact—jump on the rocket ship. We’re just getting started.

Position Overview

We are seeking a highly skilled and motivated System Application Engineer to join our dynamic team. The ideal candidate will possess extensive experience with AI networking switch architecture and configurations, along with a deep understanding of optical transceivers on switches. This role involves supporting customers with 800G and 1.6T optical transceivers on 51.2T and beyond switches.

Key Responsibilities

• Provide expert support for 51.2T and beyond switch configurations, with a focus on 800G and 1.6T optical transceivers.
• Serve as the technical support manager, supporting customers to understand their technical requirements and provide tailored solutions.
• Troubleshoot and resolve issues related to AI networking switches and optical transceivers.
• Conduct customer demos and provide hands‑on support for switch configurations.
• Collaborate with multifunctional teams, including optical, software, hardware, mechanical, and thermal.
• Stay updated on industry trends and advancements in AI networking and optical transceivers.

Required Qualifications

• Bachelor or advanced degree in Electrical Engineering, or a related field.
• Deep understanding of optical transceivers on switches.
• Extensive hands‑on experience with DSP, optical transceiver configuration and debugging.
• Strong familiarity with AI networking switch architecture and configurations.
• Experience working with 800G transceivers and 51.2T switches is a plus.
• Preferably has working experience with leading optical transceiver companies.
• Excellent problem‑solving and communication skills.
• Ability to work independently and as part of a team.
• Strong customer‑facing and interpersonal skills.

Benefits

• Competitive salary and significant equity compensation in a rapidly growing, well‑funded startup.
• Comprehensive health, dental, and vision insurance.
• Flexible time off policy.
• Direct impact on groundbreaking technology shaping the future of AI and data centers.
• Opportunity to work with a highly experienced and collaborative team.
• Dynamic and innovative work environment.
• Opportunity for rapid career growth.
• 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.