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Director, System Applications Engineering

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

Job Title

Director, System Applications Engineering

Role Summary

Lead and scale the customer-facing system and applications engineering function for next-generation AI networking platforms and high-speed optical interconnects. Own technical engagement, system integration, and deployment strategy for 800G and 1.6T optical transceivers across 51.2T-class and next-generation switch architectures.

Experience Level

Senior-level. The role expects 10+ years of experience in optical systems, networking, or high-speed interconnects with progressive leadership responsibility.

Responsibilities

Primary responsibilities include building a global team, leading customer technical engagements, and ensuring system-level performance and reliability across deployments.

  • Build, scale, and lead a high-performing system/applications engineering team supporting global customer deployments.
  • Serve as the executive-level technical interface for strategic customers and partners.
  • Oversee bring-up, validation, and optimization of optical links across AI networking platforms, ensuring performance and interoperability.
  • Lead cross-functional debugging and resolution of system-level issues spanning optical modules, DSPs, switches, and architectures.
  • Translate field learnings into product and roadmap input for product, engineering, and go-to-market teams.
  • Define scalable processes and standards for customer support, escalation management, system validation, and deployment.
  • Own high-impact evaluations, proofs-of-concept, and technical demonstrations for design wins.
  • Maintain and apply deep domain expertise in AI networking and optical interconnect trends to guide strategy.

Requirements

Must-have technical and leadership qualifications required to succeed in this role.

  • 10+ years of experience in optical systems, networking, or high-speed interconnects with progressive leadership responsibility.
  • Deep expertise in optical transceivers, DSP architectures, and high-speed link performance and debugging.
  • Strong understanding of AI networking systems, including 51.2T and next-generation switch architectures.
  • Proven track record leading customer-facing engineering teams and delivering complex system deployments.
  • Experience with 800G optical modules required.
  • Exceptional communication skills and executive presence; ability to influence technical and business stakeholders.
  • Demonstrated ability to operate cross-functionally and drive alignment across engineering, product, and commercial teams.

Nice-to-have:

  • Experience with 1.6T and next-generation systems.
  • Background at leading optical transceiver, networking systems, or hyperscale infrastructure companies.

Education Requirements

Bachelor's or advanced degree 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