ashby
SI/PI Engineer
Etched
San Jose, USA
Full-time
Mid · 5+ years experience
Onsite
Discovered 1 weeks ago
Cadence SigrityAnsys SIwaveHFSSKeysight ADS
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Role Overview
We are looking for a Signal Integrity and Power Integrity (SI/PI) Engineer to join our platform electrical engineering team. In this role, you will own the SI/PI methodology for high-speed PCB and system designs — from early architecture through final release — ensuring electrical margins are met across interfaces running at multi-gigabit data rates.
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Cadence SigrityAnsys SIwaveHFSSKeysight ADS
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About Etched
Etched is building the world’s first AI inference system purpose-built for transformers - delivering over 10x higher performance and dramatically lower cost and latency than a B200. With Etched ASICs, you can build products that would be impossible with GPUs, like real-time video generation models and extremely deep & parallel chain-of-thought reasoning agents. Backed by hundreds of millions from top-tier investors and staffed by leading engineers, Etched is redefining the infrastructure layer for the fastest growing industry in history.
Job Summary
We are looking for a Signal Integrity and Power Integrity (SI/PI) Engineer to join our platform electrical engineering team. In this role, you will own the SI/PI methodology for high-speed PCB and system designs — from early architecture through final release — ensuring electrical margins are met across interfaces running at multi-gigabit data rates.
Key Responsibilities
- Perform pre- and post-layout SI simulations for high-speed serial interfaces including PCIe Gen5/Gen6, 112G/224G Ethernet.
- Conduct channel analysis and link budget calculations; define topology constraints, trace geometry, stack-up requirements, and via optimization guidelines for PCB designers.
- Develop and maintain COM, IBIS, S-parameter, and SPICE models; correlate simulation results against lab measurements.
- Execute power delivery network (PDN) design and analysis: target impedance profiling, decoupling capacitor selection, AC/DC power analysis, and IR-drop simulation.
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