Controls / Firmware Engineer

EV.Careers; Seattle (WA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Relocation assistance

Fully paid healthcare

401(k) match

Job summary

EV.Careers is seeking a Controls/Firmware Engineer for a partner in the high-voltage battery and power-electronics sector in the Seattle area. You will own embedded controls linking the battery management system, power converter, and rack power management to ensure safe, reliable operation.

You will develop real-time control for power converters, implement Modbus/CANbus/PMBus communication, and participate in hardware-in-the-loop testing and system-level validation to support a backup-power

Qualifications

• BS in Electrical or Computer Engineering.
• 5+ years of embedded controls or firmware for power systems.
• Real-time control of power converters or BMS.
• Embedded C/C++ with CANbus and/or Modbus.

Responsibilities

• Own the control architecture tying BMS, power converter, and rack power management together.
• Write charge/discharge algorithms and mode transitions (grid-tied, UPS, islanded).
• Build fault detection, protection, and graceful-degradation logic.
• Implement communications to datacenter IT (Modbus, CANbus, PMBus).
• Own hardware-in-the-loop and system-level testing.

Skills

Embedded C/C++

CANbus / PMBus

Modbus communications

Real-time control

Hardware-in-the-loop testing

Education

BS in Electrical or Computer Engineering

Job description

Seattle, United States

EPG is currently seeking a Controls / Firmware Engineer for one of our partners that is an established high-voltage battery and power-electronics company bringing technology proven in demanding, high-reliability applications to a new backup-power product for AI data centers. In this position, you will own the embedded controls and firmware that tie the battery, converter, and rack together and make the system run and fail-safe.

Responsibilities

• Own the control architecture tying BMS, power converter, and rack power management together.


• Write charge/discharge algorithms and mode transitions (grid-tied, UPS, islanded).


• Build fault detection, protection, and graceful-degradation logic.


• Implement communications to datacenter IT (Modbus, CANbus, PMBus).


• Own hardware-in-the-loop and system-level testing.

Requirements

• BS in Electrical or Computer Engineering.


• 5+ years of embedded controls or firmware for power systems.


• Real-time control of power converters or BMS.


• Embedded C/C++ with CANbus and/or Modbus.


• This role is onsite in the Pacific Northwest. Must be able to work in the United States without sponsorship (US Persons only, export-control requirement).

Preferred Qualifications

• Datacenter power/IT protocols (PMBus, Redfish, SNMP).


• Aerospace or automotive controls adaptable to stationary systems.


• Functional safety (IEC 61508, ISO 26262).


• Competitive salary, relocation assistance, fully paid healthcare, and a strong 401(k) match.


• Own the control brain of a clean-sheet 800V product.


• Build on technology already proven in demanding, high-reliability applications.