Senior NPI Firmware Engineer

Stack

Responsibilities

• ▹Design, implement, debug, and optimize power management firmware (battery charging, PMIC integration, power sequencing, charging interfaces)
• ▹Contribute to the full power management firmware stack (low-power states, battery management, charger negotiation, system-level power transitions)
• ▹Work across the full product lifecycle: early architecture and hardware bring-up, NPI validation, manufacturing ramp, and long-term sustaining
• ▹Hands-on hardware bring-up and debugging using schematics, datasheets, and lab equipment
• ▹Develop low-level drivers and platform ports for PMICs, chargers, and related subsystems, plus firmware update mechanisms
• ▹Support manufacturing: develop factory test firmware and define manufacturing test specifications
• ▹Collaborate cross-functionally with hardware, product, program management, and manufacturing teams
• ▹Design firmware architectures balancing performance, power consumption, and user experience
• ▹Contribute to firmware architecture and technology strategy decisions

Requirements

• ▹5+ years of firmware development experience in battery-powered consumer electronics or other high-volume embedded systems
• ▹Significant experience integrating PMICs, battery chargers (switching or linear), fuel gauges, and protection circuits
• ▹Strong understanding of charging algorithms, current/voltage regulation, thermal management, and safety mechanisms
• ▹Expert-level C/C++ development in resource-constrained systems, with deep knowledge of MCU peripherals, interrupts, power domains, and RTOS-based systems
• ▹Experience optimizing battery life through power states, wake-up flows, and power transitions
• ▹Comfortable in an agile development environment with strong collaboration and communication skills across distributed teams
• ▹Hardware-level debugging skills (oscilloscopes, power analyzers, logic analyzers)
• ▹Experience supporting factory firmware releases and manufacturing ramp activities
• ▹Strong system-level thinking across hardware, firmware, and manufacturing processes
• ▹Bachelor's or Master's degree in Electrical Engineering, Computer Science, or a related field

Soft skills

What we offer

• ▹Competitive salary and equity packages
• ▹Health, dental, and vision insurance, plus mental health resources
• ▹An Oura Ring of your own, plus discounts for friends and family
• ▹20 days of paid time off, 13 paid holidays, and 8 days of flexible wellness time off
• ▹Paid sick leave and parental leave

About the company

Oura's mission is to empower every person to own their inner potential. Its award-winning products — the Oura Ring and companion app — help a global community gain deeper insight into their readiness, activity, and sleep quality, offering daily, practical insights to support healthier lifestyles.