Technical Sales Engineer - Photovoltaic & BESS - Brea, CA

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Empower your Future at the Nation's Largest Independent Electrical Distributor!

At U.S. Electrical Services, Inc. (USESI), we combine over 100 years of expertise, $150 M+ in inventory, and the power of 2,000+ dedicated employees across 150 locations to deliver excellence every day. As a family of 14 regional businesses, we thrive on innovation and teamwork, empowering our people to shape the future of the electrical industry.

Walters Wholesale Electric Company, an affiliate of USESI, is seeking a motivated and enthusiastic Technical Sales Engineer to join our team. This position will be located in our Brea, CA location.

Job Summary

The Technical Sales Engineer - Photovoltaic & BESS serves as a technical subject matter expert supporting customers, internal sales teams, and manufacturing partners with photovoltaic (PV) and battery energy storage system (BESS) solutions within an electrical distribution environment. This role bridges engineering knowledge and sales execution by providing application support, product selection guidance, code compliance insight, and technical training for commercial, industrial, and utility-interconnected projects.

Key Responsibilities:

Technical Sales & Applications Support

• Provide pre-sales and post-sales technical support for PV and BESS products
• Assist customers and sales teams with system architecture, product selection, and equipment compatibility
• Review single-line diagrams, equipment schedules, and specifications to support quoting and submittals
• Support value engineering efforts to optimize cost, performance, and availability

PV & BESS Product Expertise

• Serve as subject matter expert for solar inverters, battery systems, EMS, and balance-of-system components
• Explain AC- and DC-coupled PV + BESS configurations and their impact on electrical distribution systems
• Support applications including backup power, peak shaving, load shifting, and grid-interactive use cases
• Assist with troubleshooting, returns, and manufacturer warranty coordination

Electrical Distribution Integration

• Advise on integrating PV and BESS into existing electrical distribution systems
• Provide guidance on NEC Articles 690, 705, and 706, grounding, bonding, OCPD, and disconnect requirements
• Support utility interconnection requirements and product acceptance
• Coordinate with utilities, AHJs, engineers, and contractors as needed

Training & Relationship Management

• Deliver technical product training to internal sales teams and customers
• Support manufacturer line cards, product launches, and technical documentation
• Participate in customer meetings, lunch-and-learns, and project planning discussions
• Build strong relationships with manufacturers, contractors, engineers, and utilities

Skills & Qualifications:

Education & Experience

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  High school diploma or equivalent required; Associate's or Bachelor's degree in Electrical Engineering or a related field preferred

  
  
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  Minimum of 3 years of experience in electrical distribution, renewable energy, or technical sales

  
  
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  Prior experience working for or with an electrical distributor preferred

  
  
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  Valid driver's license required

  
  

Technical Knowledge & Expertise

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  Strong understanding of photovoltaic (PV), battery energy storage systems (BESS), and electrical distribution systems

  
  
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  Working knowledge of electrical codes and distribution best practices

  
  
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  Ability to translate technical and engineering concepts into practical, customer-focused solutions

  
  

Certifications (Preferred)

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  NABCEP PV Installation Professional and/or Energy Storage Certification

  
  
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  Journeyman Electrician license or equivalent hands-on field experience

  
  
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  OSHA 10 or OSHA 30 certification

  
  
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  Manufacturer-specific technical certifications

  
  

Professional Skills

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  Strong technical communication and customer-facing skills

  
  
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  Highly organized, detail-oriented, and responsive in a fast-paced sales environment

  
  
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  Comfortable collaborating across sales, operations, manufacturers, and external partners

  
  

Work Environment

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  Office-based role with regular customer interaction

  
  
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  Occasional warehouse and job site visits

  
  
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  Travel required for customer meetings, training events, and manufacturer engagements

  
  

Benefits:

At Walters, we believe that our benefits should make a difference-to you, your job, and the life you lead outside of work. We are dedicated to supporting our most valuable asset, our employees!

Full-time employees are eligible for the following comprehensive benefit plan:

• Health insurance (medical/dental/vision)
• TeleMedicine
• Company Paid Life Insurance & AD&D insurance
• 401(k) Retirement Plan with company contribution
• Paid Holidays
• Personal Leave Time (vacation and sick leave)
• Flexible Spending Accounts
• Employee Assistance Program (EAP)
• Choice of voluntary benefits including identity theft
• Product discounts

If you are unable to complete the online application due to a disability, contact the Walters Recruiting Team to ask for an accommodation or an alternative application process.

Walters is committed to providing equal employment opportunities to all employees and applicants without regard to race, religion, color, sex, national origin, citizenship status, uniform service member, age, disability, sexual and gender orientation, genetic information or any other legally protected status in accordance with all applicable federal, state and local laws. This commitment extends to all aspects of Walters' employment practices including, but not limited to, recruiting, hiring, promoting, transferring, compensation, benefits, training, leaves of absence, termination, and other terms and conditions of employment.