Hardware Test Engineer at DensityAI — NeverHard

ITAR Notice: This role involves access to ITAR-controlled information. Applicants must be U.S. persons (U.S. citizens, U.S. permanent residents, asylees, or refugees) per 22 CFR 120.62. About the role: Own the test that proves our AI accelerator hardware works — from the packaged units, to the boards they sit on, to the systems they ship in. You’ll develop the test setups, test hardware, and coverage/yield/throughput that let us catch problems early and ship at volume. You’ll sit at the seam between silicon/packaging and the systems our accelerators run in, and own the test strategy that spans package level, board level, and — increasingly — full system level. What you’ll do Develop and run package-level test — socket-based bring-up and validation of packaged units: power-up, interface/interconnect continuity, and functional/parametric checks against spec (boardpackage interface, not ATE silicon device test) Develop and run board-level test — functional, structural (boundary scan/JTAG), in-circuit, and bring-up validation for accelerator boards and system hardware Build out system-level test — bring up and validate assembled accelerator systems against spec, including functional, stress, and burn-in flows Design and validate test hardware and fixtures — sockets, connectors, load boards, and board/system fixtures for high-speed and high-current test Drive test coverage, yield analysis, and test-time/cost reduction across the product lifecycle Lead new-product test bring-up; resolve test escapes, yield excursions, and hardware failures with data-driven root cause Run characterization and correlation across levels — package board system, and bench production test Define test specs, limits, and guardbands with design, product, packaging, and reliability engineering Transfer and sustain test programs at OSAT/CM and manufacturing partners through ramp to high volume Use and develop AI-assisted tool flows to accelerate test development, debug, and yield analysis What we’re looking for BS/MS in Electrical/Computer Engineering or equivalent plus 5+ years in package/board/system-level hardware test engineering Hands-on test experience across at least two of package-level, board-level, and system-level test — with the ability to own the others Package and board test hardware experience (sockets, connectors, load boards, fixtures) and the signal/power integrity that comes with high-speed, high-current test Lab bring-up and debug skills: oscilloscopes, logic and protocol analyzers, power and thermal instrumentation Data analysis and statistical skills for yield, characterization, and correlation work (Optional) High-speed I/O / SerDes, DDR/HBM, RF, or high-current/power-device test; structural test (boundary scan); scripting/automation (Python, C++); system burn-in and reliability test; OSAT/CM partner management Full compensation packages are based on candidate experience and relevant certifications. California pay range $230,000—$290,000 USD #J-18808-Ljbffr