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Salary: USD 250,000 - 300,000 / annual
DensityAI is seeking a Systems Integration & Validation Engineer to own end-to-end validation of AI rack-scale systems. You will take systems from board and tray bring-up through full racks and multi-rack clusters, including L11 rack integration and field deployment. Your scope covers accelerator compute trays, host servers, scale-up switches, NICs, retimers, cables, power shelves, busbars, liquid cooling, and rack management systems.
Key responsibilities include:
- Create comprehensive system validation plans across board, tray, rack, and multi-rack cluster levels
- Build validation environments with system diagnostics, stress/burn-in tests, workload-based tests, fleet health checks, and rack acceptance tests
- Develop test automation that scales across hundreds of racks and thousands of trays, including telemetry collection, results databases, and dashboards
- Lead system and rack bring-up from first power-on through full validation, including interoperability testing, thermal and performance characterization, margin testing, and long-duration stability testing
- Drive validation through NPI phases (Proto, EVT, DVT, PVT, production) and define entry/exit criteria
- Debug and root-cause issues across silicon, board, firmware (BIOS/UEFI, BMC, device firmware), OS, drivers, networking, power, and thermal systems
- Define L6, L10, and L11 test content and acceptance criteria with ODM and CM partners; improve factory test yield; support data center bring-up and field deployment
- Partner across silicon validation, hardware, thermal, firmware, software, networking, manufacturing, and data center operations teams
Requirements:
- 5+ years of experience in system validation, system integration, or bring-up for servers, accelerators, or rack-scale systems
- Strong coding skills in Python, C, and C++; solid Linux systems experience
- Experience with BMC (OpenBMC), Redfish, and IPMI
- Proven system and rack bring-up experience from first power-on through full validation
- Experience validating hardware through NPI phases and into production
- Experience working with ODM and CM partners on L6/L10/L11 test content, acceptance criteria, and factory yield
- Strong debug skills and fluency with PCIe and Ethernet protocol analyzers, oscilloscopes, logic analyzers, JTAG debuggers, BMC logs and telemetry
- Experience building test automation, telemetry, and triage infrastructure at fleet scale
- Deep expertise in one or more of: AI training/inference workloads at scale, PCIe Gen5/6/7, CXL, PCIe switches and retimers, scale-up fabrics and switches, 112G/224G SerDes, copper cables and backplanes, optics, scale-out networking, RDMA, RoCE, rack power delivery and management, liquid cooling and thermal, system management and firmware updates, RAS and error handling, secure boot, or system performance
- Strong collaboration and communication skills across internal teams, manufacturing partners, and data center operations
