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Director System Application Engineering

Lumilens· Product
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San JoseFull-timePosted 2mo ago

About the role

Director / Senior Director, System Applications Engineering to lead customer-facing system engineering for next-generation AI networking platforms and high-speed optical interconnects, defining the engagement model for deploying 800G and 1.6T transceivers across 51.2T-class and next-gen switch architectures.

Responsibilities

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

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

Skills

Required:System applications engineering leadershipOptical transceiversDSP architecturesAI networking systems

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
Last updated Aug 8, 2026. Interested? Apply on the company site.

About Lumilens

Connectivity Platform for AI

Lumilens provides next-gen photonic interconnects for massively scaling out – and scaling up – AI compute infrastructure.

Photonic InterconnectsNext-Gen ManufacturingSystem-level knowledgeLumicore platformCPO/SiPh manufacturing
Company profileWebsite

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