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Lead System Application Engineer (Optical)

Lumilens
August 31, 2026
Full-time
On-site
San Jose, California, United States
Test Engineering Jobs, Level - Senior

Job Title

Lead System Application Engineer (Optical)

Role Summary

Support deployment and system integration of high-speed optical transceivers on 51.2T-class and next-generation AI switches. Act as the primary technical customer contact for bring-up, debugging, and performance tuning of 800G and 1.6T optical links.

This role combines applications engineering, customer support, and cross-functional product integration to ensure reliable, high-performance optical interconnects.

Experience Level

Senior-level (Lead) role. Years of experience not specified.

Responsibilities

Provide technical leadership for customer deployments, system bring-up, and interoperability of high-speed optical links.

  • Provide expert technical support for 51.2T and future-generation switch architectures, focused on 800G and 1.6T transceivers.
  • Serve as primary customer-facing technical lead to capture requirements and deliver system-level solutions.
  • Debug and resolve interoperability issues involving switches, DSPs, and high-speed optical modules.
  • Lead customer demos, evaluations, switch configuration, link validation, and performance tuning.
  • Collaborate with optical, hardware, software, mechanical, and thermal teams for product integration.
  • Monitor industry standards and trends to inform product and customer roadmaps.

Requirements

Must-have technical skills and experience below. Nice-to-have items follow.

  • Must-have: Strong understanding of optical transceiver architecture, configuration, and performance characteristics.
  • Must-have: Extensive hands-on experience with DSP bring-up, transceiver configuration, and high-speed link debugging.
  • Must-have: In-depth familiarity with AI networking switch architectures and Layer 1 / Layer 2 configurations.
  • Must-have: Experience working with 800G optical modules and 51.2T-class switches.
  • Must-have: Excellent analytical, communication, and customer-facing skills.
  • Must-have: Ability to work independently while collaborating with global, cross-functional teams.
  • Nice-to-have: Experience with 1.6T modules or next-generation switches.
  • Nice-to-have: Prior experience at an optical transceiver or networking systems company.

Education Requirements

Bachelor's degree or higher in Electrical Engineering or a related technical field.


About the Company

Company: Lumilens

Headquarters: San Jose, CA, USA

Lumilens develops integrated photonics and optical interconnect solutions for high-speed data communication and chip-to-chip interfaces, focusing on optical front-end hardware and co-packaged optics for advanced semiconductor systems.

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Date Posted: 2026-08-29