Firmware Engineer (Robotics)

Location: San Carlos, California, United States; on-site

Salary: $200,000–$280,000 per year plus equity

Company

hirify.global builds humanoid robots designed to operate safely in homes and perform real-world tasks. The flagship NEO robot is being developed for scaled production.

What you will do

• Own the embedded firmware layer for one or more core humanoid robot hardware subsystems.
• Develop charger firmware for AC-DC power conversion, power factor correction, isolated DC-DC conversion, and lithium-ion battery charge profiles.
• Design charger-to-BMS communication over CAN or similar embedded buses, coordinating charge requests, battery feedback, temperature limits, and fault signaling.
• Implement voltage and current regulation, soft-start sequencing, fault detection, protection logic, and safe-state transitions.
• Test, validate, and verify firmware releases for functionality, reliability, and performance.
• Collaborate with hardware, electrical, and systems engineers during hardware bring-up and failure diagnosis.

Requirements

• 5+ years of embedded firmware development in C/C++ on real hardware; 7+ years for senior or staff-level positions.
• Hands-on experience with interrupts, DMA, timing-critical execution, and embedded communication protocols.
• Working knowledge of switched-mode power supplies, AC-DC topologies, power factor correction, transformer isolation, and power converter control.
• Knowledge of lithium-ion charging protocols, including constant-current, constant-voltage, and multi-stage charging.
• Experience with CAN for charger-to-BMS coordination and interfaces such as SPI, I²C, and UART.
• Experience debugging hardware-boundary issues with oscilloscopes, current probes, and power analyzers.

Nice to have

• Experience with safety-critical or fault-tolerant embedded systems and standards such as IEC 61508 or ISO 26262.
• Familiarity with FreeRTOS, SafeRTOS, or similar real-time operating systems.
• Background in robotics, autonomous systems, or complex electromechanical products.
• Experience with distributed real-time bus firmware, motor drive and actuator control, or humanoid robot subsystems.

Culture & Benefits

• Builder-oriented environment with ownership, direct communication, speed, and high quality standards.
• Medical, dental, and vision coverage.
• Paid time off, company holidays, and parental leave.
• 401(k) plan with company match, plus FSA and HSA options.
• Disability and life insurance, employee assistance support, commuter benefits, onsite snacks, and catered lunches.