Sr Electrical Engineer

Sr. Electrical Engineer

Eos Energy Enterprises, Inc. is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. Our breakthrough Znyth™ aqueous zinc battery was designed to overcome the limitations of conventional lithium-ion technology. It is safe, scalable, efficient, sustainable, manufactured in the U.S., and the core of our innovative systems that today provides utility, industrial, and commercial customers with a proven, reliable energy storage alternative for 3 to 12-hour applications. Eos was founded in 2008 and is headquartered in Edison, New Jersey.

The Sr. Electrical Engineer is accountable for advanced development and design of battery management system electronics and controls for newly built energy storage systems, as well as maintaining existing designs and support the creation of automated test equipment for the product components. This role demands deep expertise in low-level circuit design, high-voltage layout practices, and compliance with safety standards. The ideal candidate will serve as a technical authority across design, testing, documentation, and cross-functional support.

Responsibilities

• Architect and implement low-level electronic circuits incorporating electrical isolation, microcontroller control systems, and precision analog front-ends
• Design and optimize circuit board layouts for high-impedance analog signals, ensuring compliance with creepage and clearance requirements for high-voltage applications
• Develop designs that meet global safety certification standards (e.g., UL, IEC), including documentation and testing support for regulatory submissions
• Lead comprehensive verification testing of electronic components and integrated product designs, ensuring performance, reliability, and safety.
• Generate detailed reports on design rationale, test methodologies, and results to support engineering reviews and product documentation.
• Maintain thorough design records and contribute to the development of operation manuals and user documentation.
• Provide expert-level troubleshooting and technical support for manufacturing teams and field operations on released products
• Offer strategic technical guidance to engineering teams, production staff, and service personnel, fostering best practices and continuous improvement.

Knowledge, Skills, and Abilities

• Proficient in designing and validating electrical circuit boards, including hands-on testing and performance evaluation.
• Ability to work in lab environment and understand how components fit into a larger system
• Solid understanding of embedded control systems and their practical applications across various domains.
• Strong programming capabilities in C and C++, with working knowledge of Linux-based development environments.
• Demonstrated ability to diagnose issues and implement design improvements for enhanced reliability and performance.
• Familiarity with design for EMC and availability to trace down EMI issues
• Knowledgeable in safety certification processes, including compliance with standards such as UL and IEC.
• Competent skills with communications protocols such as TCP/IP, CAN, i²C and SPI; use of Modbus
• Capable of identifying, evaluating, and integrating off-the-shelf components and equipment into system designs.
• Strong cross-discipline system skills
• Understanding of hardware and physical system being controlled is required
• Comfort and experience with the hazard and safety protocols of high voltage equipment and other aspects of working with large-scale battery systems
• Ability to self-direct to a goal and achieve independent success
• Ability to mentor junior engineers and technicians
• A team-player attitude and strong written/verbal communication skills are a must

Education and Experience

• Bachelor's degree in Electric Engineering, Electronic Engineering, Computer Engineering, or Electrical Engineering Technology required
• Minimum of 8 years' experience required

Additional Experience

• Hardware and design, debug, and testing. PCB design.
• Minimum eight years' experience designed electronics, developing automated controls, and troubleshooting
• Engineering Design Software: EAGLE, IAR or similar software
• Embedded programming, communication interfaces; I²C, RS-485, CAN bus communication, Modbus TCP, remote IO, or flex IO systems (Moxa, Allen Bradley, SEL, Advantech), PLC programming experience, GDB or other debugging tools.
• Linux, embedded systems
• High voltage electrical systems

Travel

• Local Travel - Less than 10%
• Overnight/North America - Less than 10%

Working Conditions

• Office Environment - Must be able to remain in a stationary position 50% of the time and occasionally move about inside the office to access file cabinets, office machinery, etc. Required to have close visual acuity to perform an activity such as: preparing and analyzing data and figures; transcribing; viewing a computer terminal; extensive reading. May be required to exert up to 25 pounds of force occasionally to lift, carry, push, pull or otherwise move objects, including the human body.