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Battery Energy Storage System (BESS) Engineer - $120k Annually

Main Electric Supply Co.
Irvine, CA Full Time
POSTED ON 4/4/2026
AVAILABLE BEFORE 8/1/2026

Company Description

 

Main Electric Supply Co. is a leader in electrical product distribution, serving industries such as commercial, residential, industrial, government, and retail. With locations from Northern California to San Diego and Reno to Las Vegas, we are dedicated to expanding our reach, embracing technology, and tackling industry challenges. Our services include bidding and estimating support through specialized teams, efficient project management to meet timelines, and a robust distribution network with flexible delivery options. We are also committed to providing training on the latest products and compliance standards to empower our clients and support their growth.


Main Electric has a collaborative culture and a supportive leadership culture. We strive to cultivate a culture of mutual respect and understanding to ensure smooth operations and effective leadership. This approach is rooted in a collaborative family-business model that prioritizes partnership across generations.


Main Electric is well established within the Commercial Electrical Industry with plans to expand the Clean Energy Division. The BESS space is a growing part of the industry and we want you to be a prt of that growth!

 

Role Description

 

Do you currently or do you have the ability to design a BESS system based upon 30 percent drawings?

Are you familiar and able to design a system to meet California Title 24 requirements?

Are you a Professional Engineer?


If so, this role is for you!


The Battery Energy Storage System (BESS) engineer involves designing, and optimizing systems that store electrical energy (usually via lithium-ion batteries) for grid stabilization, renewable energy integration, and backup power. 

The Energy Storage Engineer will play a key role in the development, evaluation, and integration of energy storage systems, collaborating with cross-functional teams to deliver innovative solutions. The engineer will work closely with electrical engineering teams to ensure efficient energy system designs. This is a full-time hybrid role, based in the Los Angeles Metropolitan Area, allowing for a combination of on-site and remote work.


Required Qualifications

 

·        Experience in engineering and designing energy storage systems

·        Proficiency in electrical engineering with a focus on system design and optimization

·        Familiarity with Micro-Grids

·        Excellent problem-solving and analytical skills

·        Bachelor's degree or higher in Professional Engineer, Electrical Engineering, Materials Science, or a related field

·        Familiarity with energy storage regulations and industry standards

·        Strong interpersonal and communication skills for collaboration across teams

·        Commercial Solar experience

Salary : $120,000

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