Lumilens

Director System Application Engineering

San Jose, California, United States · Work style not stated · FullTime

Posted over 6 months ago: check it’s still open

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About the role

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EmployerLumilens
LocationSan Jose, California, United States
Work styleWork style not stated
Employment typeFullTime
Employer posted6 months ago

Position Overview
We are seeking a Director / Senior Director, System Applications Engineering to lead customer-facing system engineering for next-generation AI networking platforms and high-speed optical interconnects. This leader will define and drive the technical engagement model for deploying 800G and 1.6T optical transceivers across 51.2T-class and next-generation switch architectures.

This role sits at the intersection of customer success, system architecture, and product strategy, owning the end-to-end applications engineering function. The ideal candidate combines deep technical expertise in optical systems, DSPs, and AI networking with a proven ability to build teams, influence product direction, and drive successful customer deployments at scale.

Key Responsibilities

Lead System Applications Engineering Function
Build, scale, and lead a high-performing team of system and applications engineers supporting global customer deployments

Show full description

Own Customer Technical Engagement Strategy
Serve as the executive-level technical interface for key customers, shaping system-level solutions and long-term partnerships

Drive End-to-End System Integration Excellence
Oversee bring-up, validation, and optimization of optical links across AI networking platforms, ensuring performance, reliability, and interoperability

Resolve Complex System-Level Challenges
Lead cross-functional efforts to debug and resolve issues spanning optical modules, DSPs, switches, and system architectures

Influence Product & Roadmap Decisions
Translate customer insights and field learnings into actionable input for product, engineering, and go-to-market strategies

Establish Scalable Processes & Best Practices
Define standards for customer support, escalation management, system validation, and deployment methodologies

Lead Customer Demos & Strategic Engagements
Oversee high-impact evaluations, proof-of-concepts, and design wins with leading AI infrastructure customers

Stay Ahead of Industry Trends
Guide internal strategy by maintaining deep expertise in AI networking, optical interconnects, and next-generation switch architectures

Required Qualifications

Bachelor’s or advanced degree in Electrical Engineering or related field

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 of leading customer-facing engineering teams and delivering complex system deployments

Experience with 800G optical modules required; 1.6T and next-generation systems strongly preferred

Background at a leading optical transceiver, networking systems, or hyperscale infrastructure company highly preferred

Exceptional communication and executive presence, with the ability to influence both technical and business stakeholders

Demonstrated ability to operate cross-functionally and drive alignment across engineering, product, and commercial teams

Benefits

Competitive salary and significant equity in a high-growth, well-funded startup

Comprehensive health, dental, and vision coverage

Flexible time off policy

Opportunity to shape foundational technology powering next-generation AI infrastructure

Highly experienced, collaborative, and mission-driven team

Fast-paced, innovative environment with significant leadership impact and career growth

Equal Opportunity Statement

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 applicable law.

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