High-Speed Interface Validation Engineer, Post Silicon Validation

Job description

Annapurna Labs, an AWS organization with development centers in the U.S. and Israel, builds custom silicon and software for AWS customers. Our team combines cloud-scale innovation with world-class expertise across silicon engineering, hardware design, verification, software, and operations to tackle technical challenges that have never been seen before. Join our Post-Silicon Validation team to validate the critical high-speed interconnects — HBM, PCIe, UCIe, and chip-to-chip links — that enable massive bandwidth and scaling in AWS's next-generation ML accelerators. You'll ensure link integrity, performance, and reliability at the electrical and protocol layers across the full product lifecycle, from first silicon through production deployment in AWS data centers. You'll work in a fast-paced, startup-like environment alongside some of the brightest minds in the industry on next generation, internet-scale technology that directly impacts how customers use Machine Learning acceleration. Your expertise will be instrumental in validating the I/O technologies that enable our custom silicon to scale beyond what was previously possible. Key job responsibilities Validate high-speed interfaces (HBM, PCIe, UCIe, custom SerDes) end-to-end from PHY training through sustained traffic Perform electrical characterization: eye diagrams, jitter analysis, voltage margin, and equalization tuning Execute protocol-level compliance testing and interoperability validation against industry specifications Stress-test links…