Controls/Firmware Engineer

MAGNIX USA INC • Everett, WA

9d • $120,000 - $165,000 • Onsite

About The Position

magniX is building a small, cross-functional team to develop a new 800V battery-based power supply and backup system for datacenter compute racks, drawing on the company's deep bench of electric propulsion battery and power electronics expertise. The Controls/Firmware Engineer develops the architecture that ties the battery management system, power converter, and datacenter rack power management together. They will design charge/discharge control algorithms, fault handling logic, and the communication layer connecting the power system to datacenter IT infrastructure.

Requirements

• Bachelors’ Electrical Engineering, Computer Engineering, or related field
• 5+ years in embedded controls or firmware for power systems.
• Experience with real-time control of power converters or battery management systems.
• Proficiency in embedded C/C++ and familiarity with common industrial communication protocols (CANbus, Modbus, or similar).

Nice To Haves

• Experience with datacenter power/IT protocols (PMBus, Redfish, SNMP).
• Background in aerospace or automotive controls, adaptable to stationary/industrial applications.
• Experience with functional safety practices (e.g., IEC 61508, ISO 26262) as applied to power systems.

Responsibilities

• Design and implement control algorithms for battery charge/discharge management, converter operation, and mode transitions (grid-tied, UPS/backup, islanded).
• Develop fault detection, protection, and graceful-degradation logic across the battery, converter, and rack interface.
• Implement communication protocols to interface with datacenter power and IT management systems (e.g., Modbus, CANbus, PMBus, Redfish).
• Collaborate with the Power Electronics and Battery Systems Engineers to define control interfaces and timing requirements.
• Support hardware-in-the-loop and system-level test activities.

Benefits

• 100% company-paid premiums for medical, dental, and vision insurance (for employees & dependents).
• 4 weeks paid vacation + 1-week annual end-of-year shutdown, sick time, and 11 paid holidays.
• 401K retirement plan with industry leading 9.5% company contribution.
• Company paid Life insurance, AD&D, Short-Term and Long-Term disability insurance
• Catered lunches and quarterly company fun-day events!

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level