> Markdown version of [/jobs/ext/2722529-principal-product-applications-engineer-ethernet](https://www.wearedevelopers.com/jobs/ext/2722529-principal-product-applications-engineer-ethernet). 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). --- # Principal Product Applications Engineer - Ethernet - **Company:** Astera Labs - **Location:** San Jose, United States - **Experience:** Expert - **Salary:** $158,400.0 - $230,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Data Analysis, Application Notes, Systems Engineering, Automation of Tests, Computer Clusters, Computer Engineering, Software Debugging, Ethernet, Ethernet Physical Layer, Python (Programming Language), Signal Integrity, Systems Architecture, System Testing, Tcl (Programming Language), Scripting, Data Center Networking - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/principal-product-applications-engineer-ethernet-astera-labs-7989582 ## About the Role * Bachelor's degree in Electrical Engineering, Computer Engineering, or related field * 8+ years of experience in applications engineering, technical support, or system engineering roles * Strong understanding of Ethernet physical layer specifications (100G/200G/400G/800G) * Hands-on experience with lab equipment including oscilloscopes, protocol analyzers, and BER test tools * Experience debugging high-speed serial interfaces and signal integrity challenges * Excellent written and verbal communication skills with ability to convey complex technical concepts, * Experience with optical modules, active cables, or similar high-speed connectivity components * Familiarity with AI/ML system architectures, GPU clusters, or data center networking * Background in signal integrity analysis and simulation * Scripting proficiency (Python, TCL) for test automation and data analysis * Prior experience working with hyperscale or enterprise data center customers * Knowledge of Ethernet consortium specifications and industry standards ## Description * Customer Technical Engagement + Serve as the primary technical resource for customers evaluating and deploying Taurus Ethernet Smart Cable Modules + Deliver technical presentations, product training, and hands-on demonstrations to customer engineering teams + Build trusted relationships with key accounts and drive successful product adoption * System-Level Debug & Validation Support + Lead root cause analysis and debugging of complex Ethernet physical layer and link issues in customer systems + Support customer lab bring-up, characterization, and system validation activities + Develop and execute test plans to reproduce and resolve customer-reported issues * Technical Documentation & Enablement + Create application notes, integration guides, and best practices documentation for Ethernet system implementation + Develop technical collateral that accelerates customer time-to-deployment + Contribute to product documentation including datasheets and user guides * Cross-Functional Collaboration + Partner with product management and engineering to translate customer feedback into product requirements + Support sales teams with technical expertise during pre-sales and post-sales engagements + Represent voice of the customer in internal roadmap discussions and feature prioritization * Willingness to travel for work within US and to Asia. ## Related Videos - [The Gashlycrumb Tinies of AI Networking You Must Know (or Languish!)](https://www.wearedevelopers.com/videos/2067-the-gashlycrumb-tinies-of-ai-networking-you-must-know-or-languish) - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [JavaScript? No. Java Scripts! - Scripting with Java](https://www.wearedevelopers.com/videos/2094-javascript-no-java-scripts-scripting-with-java) - [From Factory Floor to Kubernetes Core: Building an Edge Platform One Step at a Time](https://www.wearedevelopers.com/videos/1415-from-factory-floor-to-kubernetes-core-building-an-edge-platform-one-step-at-a-time) - [Data Science on Software Data](https://www.wearedevelopers.com/videos/162-data-science-on-software-data) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Why Event-Driven Architecture Isn’t About Speed (and When You Actually Need It)](https://www.wearedevelopers.com/magazine/745-why-event-driven-architecture-isn-t-about-speed-and-when-you-actually-need-it) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)