Hardware Engineer, Power

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role We are looking for a Hardware Engineer to own the end-to-end power architecture of our next-generation portable devices. You will be responsible for ensuring our products are safe, efficient, and long-lasting. From selecting the right battery chemistry to fine-tuning PMIC registers and creating complex power models, you will ensure every milliwatt is accounted for. Responsibilities • Define the power distribution network (PDN) and select key components, including PMICs, chargers, fuel gauges, and protection ICs. • Lead the selection, characterization, and safety validation of Li-ion/Li-poly battery cells. • Develop detailed power models to predict battery life across various user scenarios (idle, peak load, standby). • Design and optimize wired (USB-C PD) and/or wireless charging circuits, ensuring thermal stability and fast-charging compliance. • Conduct bench-level efficiency measurements for DC-DC converters (Buck, Boost, LDO) and optimize firmware settings for peak performance. • Develop power model and management strategy to overcome system brownout. • Ensure power designs meet global safety standards (UL, IEC, UN38.3) and EMI/EMC requirements. Requirements • Education: BS/MS in Electrical Engineering. • PMIC Expertise: Hands-on experience integrating and configuring high-performance PMICs (e.g., Qualcomm, TI, Nordic, or Maxim). • Battery Tech: Deep understanding of Battery Management Systems (BMS), including fuel gauging algorithms and state-of-charge (SoC) estimation. • Precision Measurement: Expert-level skills using power analyzers, electronic loads, and high-resolution current sense tools. • PDN Integrity: Strong understanding of PCB layout for power, focusing on minimizing losses and managing high-current paths. Bonus Qualifications • Experience working with software team on driver-level power management or I2C/SMBus communication. • Experience using tools like Flotherm or Icepak to simulate the thermal impact of power dissipation. • Proficiency in SPICE or MATLAB for transient analysis and loop stability modeling. Compensation The US base salary range for this full-time position is between $120,000 - $300,000 annually. The pay offered for this position may vary based on several individual factors, including job-related knowledge, skills, and experience. The total compensation package may also include additional components/benefits depending on the specific role. This information will be shared if an employment offer is extended.