You will take the first silicon from power-on to a working system — the first to touch new boards, the one who decides what is actually broken, and the person the whole hardware team depends on during the weeks that matter most. Hands-on lab role with wide cross-functional reach. What you will work on: First power-on and bring-up of a multi-die AI accelerator board Debug and triage across power, clocks, reset, boot, high-speed interfaces and firmware Lab infrastructure: test benches, instrumentation, fixtures and automation Characterisation and margin testing on real silicon Rack-scale system integration and multi-node bring-up

Responsibilities:
Bring-up execution: Own the power-on sequence, voltage and clock checks, reset and boot flow, and the first interface links to train. Write and maintain the bring-up checklist and run it on every new build. Debug & triage: Isolate failures across hardware, firmware and software, and route them to the right owner with evidence. Use scopes, logic analysers, protocol analysers, JTAG and on-die telemetry to localise root cause. Lab ownership: Build and maintain test setups, fixtures and instrumentation. Automate repetitive measurement and data collection so results are reproducible across boards and builds. Characterisation: Run margin, shmoo and corner testing on power rails, clocks and high-speed interfaces. Feed measured data back to SI, PI, power and design teams. Cross-functional: Work closely with design, firmware,



validation and manufacturing. Support board respins with clear failure analysis, and hand off stable platforms to validation and production test.

Requirements:
~5+ years bringing up complex digital boards — server, networking, ASIC/FPGA platforms or comparable ~ Proven first-silicon or first-board bring-up experience, start to working system ~ Strong lab

skills:
oscilloscopes, logic and protocol analysers, power measurement, JTAG and debug interfaces ~ Able to read schematics, layout and datasheets, and reason about what the board should be doing ~ Experience debugging across the hardware/firmware boundary, including boot and sequencing issues ~ Python scripting for test automation, instrument control and data analysis Nice to Have: High-speed interface bring-up: PCIe, DDR/LPDDR, Ethernet or SerDes link training and margining BMC, firmware or embedded Linux familiarity Experience with rack-scale or multi-node system integration Rework and board-level repair skills Exposure to automated or AI-assisted lab and test flows Why Semidynamics? ~ Work for one of Europe’s most promising deep-tech semiconductor scale-ups. ~ Accelerated development path. ~4 days per week in the Barcelona office (city center), 1 day WFH. ~1 week of work from everywhere in the world. ~ Competitive package. ~ A collaborative, technical, and growth-oriented environment that values direct ownership and clear thinking.

📌 Hardware Testing Engineer (España)
🏢 Semidynamics
📍 España