> Markdown version of [/jobs/ext/4648188-director-system-application-engineering](https://www.wearedevelopers.com/jobs/ext/4648188-director-system-application-engineering). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Director System Application Engineering - **Company:** Lumilens Inc. - **Location:** San Jose, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Software Applications, Systems Engineering, Software Debugging, Software Engineering, Systems Architecture, System Testing, Systems Integration, Visual Systems, AI Infrastructure, Computer Networking Systems, Deployment Automation - **Published:** November 9, 2026 - **Apply:** https://www.careerbuilder.com/job-details/director-system-application-engineering-san-jose-ca--e7f5ea7d-8cbd-4e4f-9b0e-355e16f0e88b ## About the Role Software Engineering, Systems Engineering, Systems Engineering, Software Engineering, Switching Architecture, Optical Transceivers, Artificial Intelligence (AI), Broadband, System Architecture, Product Strategy, 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., * 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 ## Description * Lead System Applications Engineering FunctionBuild, scale, and lead a high-performing team of system and applications engineers supporting global customer deployments * Own Customer Technical Engagement StrategyServe as the executive-level technical interface for key customers, shaping system-level solutions and long-term partnerships * Drive End-to-End System Integration ExcellenceOversee bring-up, validation, and optimization of optical links across AI networking platforms, ensuring performance, reliability, and interoperability * Resolve Complex System-Level ChallengesLead cross-functional efforts to debug and resolve issues spanning optical modules, DSPs, switches, and system architectures * Influence Product & Roadmap DecisionsTranslate customer insights and field learnings into actionable input for product, engineering, and go-to-market strategies * Establish Scalable Processes & Best PracticesDefine standards for customer support, escalation management, system validation, and deployment methodologies * Lead Customer Demos & Strategic EngagementsOversee high-impact evaluations, proof-of-concepts, and design wins with leading AI infrastructure customers * Stay Ahead of Industry TrendsGuide internal strategy by maintaining deep expertise in AI networking, optical interconnects, and next-generation switch architectures