Job Opportunities API

About Etched Etched is building hardware for frontier intelligence. We co-design chips, racks, software, and manufacturing to deliver best-in-class throughput and latency across both prefill and decode workloads. Our first products are heavily focused on inference. 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. - Drive DFI and design rule checks for SI/PI compliance; work with layout teams in Cadence Allegro / Sigrity or Ansys SIwave. - Collaborate with PCB design and layout engineers, and ASIC teams to define and review design guidelines early in the product lifecycle. - Support bring-up, debug signal quality issues, and document root-cause findings with clear corrective actions. - Develop and maintain simulation-to-hardware correlation databases to continuously improve modelling accuracy. You may be a good fit if you have (Must-have qualifications) - B.S. or M.S. in Electrical Engineering or a closely related discipline. - 5+ years of hands-on SI/PI experience on high-speed designs (>1 Gbps serial links or DDR4/5 and HBM3/4 memory interfaces). - Proficiency with industry SI/PI EDA tools (Cadence Sigrity, Ansys SIwave/HFSS, Keysight ADS, or equivalent). - Strong understanding of transmission line theory, return-loss, insertion-loss, crosstalk, eye-diagram analysis, and jitter decomposition. - Experience with PDN modelling, target impedance methodology, and DC IR analysis. - Working knowledge of multi-layer PCB stack-up design and controlled-impedance trace routing. - Hands-on lab skills: S-parameter measurements with VNA, time-domain reflectometry (TDR), BERT operation, and oscilloscope probing techniques Strong candidates may also have experience with (Nice-to-have qualifications) - Prior work in data center, AI/ML accelerator, networking, or high-performance computing (HPC) hardware environments. - Experience scripting automated SI/PI simulation flows using Python or MATLAB to reduce manual simulation turnaround time. Benefits - Medical, dental, and vision packages with generous premium coverage - $500 per month credit for waiving medical benefits - Housing subsidy of $2k per month for those living within walking distance of the office - Relocation support for those moving to San Jose (Santana Row) - Various wellness benefits covering fitness, mental health, and more - Daily lunch and dinner in our office - Unlimited compute budget subject to ROI justification How we’re different Etched believes in the Bitter Lesson http://www.incompleteideas.net/IncIdeas/BitterLesson.html. We are the first inference-focused frontier AI system, betting early on transformer and transformer-like architectures and on increasing model sizes. Our addressable market is the entirety of inference, unlike many of our competitors. We are a fully in-person team in San Jose and Taipei,