[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Astera Labs jobs](https://jobs.opennash.com/companies/astera-labs/) · [Search jobs](/search/) Astera Labs · San Jose # Principal Product Application Engineer - PCIe San Jose Senior individual contributor $170,500 to $220,000 Operations Listed on Astera Labs’s official careers site. Posted May 20, 2026. Check that it is still open and apply there. [Apply on Astera Labs’s careers site →](https://job-boards.greenhouse.io/asteralabs/jobs/4697866005) [OpenNash Jobs](https://jobs.opennash.com/) / [Astera Labs](https://jobs.opennash.com/companies/astera-labs/) / Principal Product Application Engineer - PCIe ## Job description Astera Labs (NASDAQ: ALAB) provides rack-scale AI infrastructure through purpose-built connectivity solutions. By collaborating with hyperscalers and ecosystem partners, Astera Labs enables organizations to unlock the full potential of modern AI. Astera Labs’ Intelligent Connectivity Platform integrates CXL®, Ethernet, NVLink, PCIe®, and UALink™ semiconductor-based technologies with the company’s COSMOS software suite to unify diverse components into cohesive, flexible systems that deliver end-to-end scale-up, and scale-out connectivity. The company’s custom connectivity solutions business complements its standards-based portfolio, enabling customers to deploy tailored architectures to meet their unique infrastructure requirements. Discover more at www.asteralabs.com. ### Role Overview Astera Labs is seeking a Principal Product Applications Engineer to join our Aries PCIe Retimer team and serve as a critical technical bridge between our customers and engineering organization. As AI infrastructure demands explode, our Aries Smart Retimers are enabling the high-speed, low-latency PCIe connectivity that powers the world's most advanced data centers—and you'll be at the center of that growth. In this high-impact role, you'll work directly with hyperscalers, OEMs, and system builders to drive successful adoption of our Aries PCIe products. You'll combine deep technical expertise with customer-facing skills to solve complex system-level challenges, create compelling technical documentation, and influence product direction based on real-world customer needs. This is an opportunity to shape how next-generation AI and cloud infrastructure connects and scales. You'll collaborate cross-functionally with design engineering, validation, sales, and marketing teams while building strong relationships with customers who are defining the future of computing. If you thrive at the intersection of cutting-edge silicon and customer success, this role offers exceptional visibility and impact. ### Key Responsibilities Customer Technical Engagement - Serve as the primary technical resource for customers during pre-sales evaluation and post-sales deployment of Aries PCIe retimers - Deliver technical presentations, product training, and demonstrations to customer engineering teams - Build trusted advisor relationships with key accounts and drive product adoption ### System-Level Debug & Validation Support - Lead root cause analysis and debugging of complex PCIe signal integrity and protocol issues in customer systems - Support customer lab bring-up, characterization, and validation activities - Develop and execute test plans to reproduce and resolve customer-reported issues ### Technical Documentation & Enablement - Create application notes, reference designs, and best practices guides for PCIe system implementation - Develop 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 customer engagements - Represent the voice of the customer in internal roadmap and feature discussions ### Basic Qualifications - 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 PCIe architecture, protocol, and electrical specifications (Gen4/Gen5/Gen6) Hands-on experience with lab equipment including oscilloscopes, protocol analyzers, and BERT tools Experience debugging high-speed serial interfaces at both the physical and protocol layers - Excellent written and verbal communication skills with ability to explain complex technical concepts - Develop and modify firmware using C to implement features, optimize performance, and resolve technical issues Travel to customer sites worldwide to provide on-site technical support, conduct system integration, and drive issue resolution ### Preferred Qualifications Experience with PCIe retimers, redrivers, or similar connectivity components - Familiarity with server, storage, or GPU system architectures Background in signal integrity analysis and simulation tools Scripting proficiency (Python, TCL) for test automation and data analysis Prior experience working directly with hyperscale or enterprise data center customers - Track record of creating high-quality technical documentation and application notes Salary range is $170,500 to $220,000 depending on experience, level, and business need. This role may be eligible for discretionary bonus, incentives and benefits. We know that creativity and innovation happen more often when teams include diverse ideas, backgrounds, and experiences, and we actively encourage everyone with relevant experience to apply, including people of color, LGBTQ+ and non-binary people, veterans, parents, and individuals with disabilities. ## At a glance - Posted by the employer: May 20, 2026 - First seen by OpenNash: Jul 12, 2026 - Last checked: Oct 18, 2026 - Listed for: 151 days - Location: San Jose - Pay: $170,500 to $220,000[Apply on Astera Labs’s careers site →](https://job-boards.greenhouse.io/asteralabs/jobs/4697866005) ## More jobs at Astera Labs ### [(Sr.) Principal Engineer - Field Applications](https://jobs.opennash.com/companies/astera-labs/jobs/b3d9698444b34bdad944/) San Jose ### [Active Electric Cable / Smart Cable Module Lead, AVP](https://jobs.opennash.com/companies/astera-labs/jobs/5729079b36b918beca94/) San Jose ### [Applications Engineering Manager - Ethernet](https://jobs.opennash.com/companies/astera-labs/jobs/ec4146ac75f324fcad12/) San Jose ### [Distinguished Formal Verification](https://jobs.opennash.com/companies/astera-labs/jobs/8acc4f006011f2371073/) San Jose ### [Fabric Modeling and Analysis Engineer for Scale Up Fabric](https://jobs.opennash.com/companies/astera-labs/jobs/0443cc7ea898148d1e5f/) San Jose ## Similar jobs at other companies ### [Principal Engineer (Application Platform)](https://jobs.opennash.com/companies/hsbc-holdings/jobs/c4a0c28787c9e28b25fc/) HSBC Holdings · Guangzhou, Guangdong, China ### [Senior Staff Product Application Engineer](https://jobs.opennash.com/companies/infineon-technologies/jobs/a5ca304227c577e4c7b4/) Infineon Technologies · Taipei ### [Product Application Engineer Power Discrete](https://jobs.opennash.com/companies/infineon-technologies/jobs/6a9344957bac1d2785ff/) Infineon Technologies · Shenzhen, 深圳 ### [System Engineer, Application Engineering Principal](https://jobs.opennash.com/companies/qualcomm/jobs/1263a279750cd324e6c6/) Qualcomm · Ottawa, Ontario, Canada, Toronto ### [Advanced Application Support Engineer – Polarion Product (Remote)](https://jobs.opennash.com/companies/siemens/jobs/d916120f8779bc8d0044/) Siemens OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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