Systems Integration & Validation Engineer

DensityAI•Mountain View, CA

17h

About The Position

Own end-to-end validation of AI rack-scale systems, taking systems from board and tray bring-up to full racks and multi-rack clusters through L11 rack integration and field deployment. The systems include accelerator compute trays, host servers, scale-up switches, and associated components such as NICs, retimers, cables, power shelves, busbars, liquid cooling, and rack management. Build plans, environments, and automation to prove systems work at fleet scale, partnering with silicon, hardware, firmware, software, manufacturing teams, and ODM and CM partners. The role also drives NPI and production ramp activities, from validation planning and factory test criteria through data center bring-up, field deployment, failure analysis, and RMA. It requires debugging across hardware and software layers and collaboration with engineering, manufacturing, suppliers, and data center operations.

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++, plus 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 (Proto, EVT, DVT, PVT) and into production.
Experience working with ODM and CM partners on L6/L10/L11 test content, acceptance criteria, and factory yield.
Strong debugging skills and fluency with tools such as PCIe and Ethernet protocol analyzers, oscilloscopes, logic analyzers, JTAG debuggers, and BMC logs and telemetry.
Experience building test automation, telemetry, and triage infrastructure at fleet scale.
Strong collaboration and communication skills across internal teams, manufacturing partners, and data center operations.

Nice To Haves

Deep expertise in one or more of the following: AI training and inference workloads and collectives at scale; PCIe Gen5/6/7, CXL, PCIe switches, and retimers; scale-up fabrics and switches; 112G/224G SerDes, copper cables and backplanes, and optics; scale-out networking, RDMA, and RoCE; rack power delivery and power management; liquid cooling and thermal; system management and firmware update; RAS and error handling; secure boot; system performance.

Responsibilities

Create system validation plans for AI rack-scale systems at board, tray, rack, and multi-rack cluster levels, through L11 rack integration.
Build validation environments, including system diagnostics, stress and burn-in tests, workload-based tests, fleet health checks, and rack acceptance tests.
Develop test automation that scales execution and automated triage 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 across compute, host, and switch trays; power, thermal, and performance characterization; margin testing; and long-duration stability and reliability testing.
Drive validation through each NPI phase (Proto, EVT, DVT, PVT, and production) and define entry and exit criteria for each phase.
Debug and root-cause issues across silicon, board, firmware (BIOS/UEFI, BMC, device firmware), OS and drivers, networking, power, and thermal systems.
Drive NPI and production ramp: define L6, L10, and L11 test content and acceptance criteria with ODM and CM partners, improve factory test yield, and support data center bring-up, field deployment, field failure analysis, and RMA.
Partner with silicon validation, board and system hardware, thermal, firmware, software, networking, manufacturing and test engineering, ODM and CM partners, suppliers, and data center operations.