Senior Power Delivery Architect

We're growing fast and looking for bold thinkers, builders, and curious problem-solvers who want to push the limits of AI hardware and software. If you're ready to join a world-class team and play a critical role in making a global impact - we want to talk to you. As a Senior Power Delivery Architect, you will be responsible for designing the complete power delivery system for Persimmons' AI accelerator — a grid of hundreds of chiplets drawing thousands of amps from a 48V datacenter rack and delivering clean, stable power to silicon cores operating at sub-1V. Architect the rack-to-silicon power delivery network, designing the complete roadmap from 48V datacenter busbar power down to sub-1V silicon cores across a multi-chiplet grid at hyperscaleOwn regulator integration strategy — evaluating and deploying high-frequency, multi-phase VRMs, Co-packaged Voltage Regulators (CPVR), and Vertical Power Delivery (VPD) architectures to meet the power density and efficiency demands of our chiplet gridDesign the multi-tier decoupling capacitor hierarchy — bulk, PCB, package, and on-chip/deep trench — running simulations to maintain stable target impedance across the full delivery stackModel and mitigate extreme di/dt transient events and IR drop across the 400-chiplet grid, eliminating dynamic voltage droop that would otherwise compromise silicon reliability and performancePartner cross-functionally with silicon, advanced packaging (2.5D/3D interposers), and thermal teams to run full-system electro-thermal and electromagnetic co-simulations, ensuring power delivery co-design is baked in from day oneYou will use AI to attack the highest-cost parts of power delivery. Any such submissions, regardless of form (including but not limited to email, direct messaging, or social media), shall be deemed voluntary and shall not create any express or implied obligation on the part of the organization to pay any fees, commissions, or other compensation.

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