SoC Power Architecture Engineer - Processor Subsystem

E-Space•Saratoga, CA

5d•Onsite

About The Position

E-Space is bridging Earth and space to enable hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are building a highly-advanced low Earth orbit (LEO) space system that will fundamentally change the design, economics, manufacturing and service delivery associated with traditional satellite and terrestrial IoT systems. We are seeking an experienced SoC Power Architecture Engineer to define, design, and implement power domain architectures for ASIC-based processor subsystems targeting satellite IoT connectivity applications. This role focuses on partitioning and structuring power domains within complex processor subsystems, with a strong emphasis on the aggressive duty cycling, ultra-low standby power, and constrained energy budgets inherent to satellite IoT end-node devices.

Requirements

Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or related field
7+ years of experience in ASIC/SoC design with a strong focus on low-power architecture
Deep hands-on experience with power domain definition, isolation strategies, and retention architectures
Proficiency with UPF (IEEE 1801) power intent format
Strong knowledge of RTL design using SystemVerilog or VHDL
Demonstrated experience optimizing for ultra-low power consumption in energy-constrained applications such as IoT, wearables, or similar
Familiarity with low-power synthesis and physical design constraints

Nice To Haves

Experience with Arm Corstone or similar processor subsystem IP, including Arm processor subsystems (Cortex-M series) or similar embedded processor architectures
Knowledge of AMBA bus protocols (AHB, APB, AXI) as they relate to power domain crossings
Experience with power analysis tools (e.g., Synopsys PrimeTime PX, Cadence Joules)
Understanding of battery-powered and energy-harvesting device constraints as they influence SoC power architecture decisions
Familiarity with power management ICs (PMICs) and their interface to domain control logic

Responsibilities

Define and architect power domains within processor subsystems, including always-on, switchable, and retention domains optimized for low-power use cases
Design and implement power domain partitioning strategies for subsystems involving embedded processors, bus interconnects, and associated peripherals
Develop and integrate supporting logic for power domain separation, including power switches, isolation cells, level shifters, and retention registers
Define and implement power control sequencing and state machines for domain power-up/power-down flows, with emphasis on fast wake-up latency requirements for satellite link windows
Collaborate with SoC architects, physical design, and verification teams to ensure power domain intent is correctly captured in UPF
Drive definition of low-power modes (e.g., Sleep, Deep Sleep, Power-Off) and their interaction with system-level power management in battery- or energy-harvesting-powered IoT devices
Work with processor subsystem reference designs as a baseline and adapt the power architecture to the unique demands of satellite IoT SoCs
Support power-aware synthesis, place-and-route, and sign-off flows in coordination with the physical design team
Define and review power intent files (UPF/IEEE 1801) and ensure consistency with RTL implementation
Engage with verification teams to ensure power domain structures are properly tested and validated across all low-power operating modes