Commercial Sales Engineer



This may be the opportunity for you! At HES Solar, our mission is to partner with our customers to fundamentally improve the way the world is powered. 


HES Solar is a full-service solar and energy storage company based in San Diego. We are a top tier, trusted solar and energy storage provider serving Southern California since 2001. We capitalize on naturally available solar energy through the installation of self-sufficient renewable power sources. This not only saves our customers money, but it protects the planet and our quality of life.


HES Solar CEO, Ross Williams, is dedicated to taking care of HES Solar employees and customers: “Our employees join us and stay with us because they know our mission is something that they can put their heart and soul behind and can wake up every morning happy to go to work. We are a small, collaborative team that works together to deliver high quality, clean energy to San Diego through our innovative solutions.”


  • Title: Commercial Sales Engineer
  • Hours: Full time, 40 hours/week
  • Reports to: Senior Project Manager
  • Vehicle: Personal, a vehicle is required to drive to job sites
  • Tools: Computer provided by HES Solar
  • Uniform: Provided by HES Solar, required when in the field

role and responsibilities

Represent the HES Solar brand and our top tier level of quality and craftsmanship

Conduct commercial site visits including:

  • Rooftop measurements and capture photos
  • Gather site electrical system information
  • Gather as built information of existing property/site
  • Ensure customer expectations of solar system placement and layout


Gather and understand requirements of local authorities having jurisdiction of building codes

Create commercial site layout:

  • Sales design support including initial layouts for bid and initial design creation using company supplied design software
  • Knowledge of Energy Tool Base, Helioscope, PVBid, Excel (usage data estimation), AutoCAD, and Netsuite (recommended)
  • Design and create single lines in AutoCAD
  • Submit 30% design requests to commercial partners


Commercial site bids/Sales and Analytics:

  • Configure and verify estimations based on designs created
  • Identify key pieces of needed equipment
  • Run proposal software based on customer usage profile and goals
  • Understand and implement appropriate utility energy tariff for each project
  • Develop and ensure accurate system production from design and solar production software
  • Understand and utilize Salesforce CRM for sales accounts and opportunities


  • 401(k) 
  • Dental insurance
  • Employee discount
  • Health insurance
  • Life insurance
  • Paid time off
  • Professional development assistance
  • Referral program
  • Vision insurance


HES Solar is an Equal Opportunity Employer. HES Solar provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, citizenship status, color, religion, age, sex (including pregnancy), national origin, disability status, family medical history or genetic information, military or veteran status, marital status, parental status, political affiliation, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including but not limited to recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

HES complies with federal and state disability laws and may make reasonable accommodations for applicants and employees with disabilities as required by applicable law. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact our Human Resources department.

HES Solar is a drug-free employer in accordance with all applicable State and Federal laws.

All job offers are contingent upon a successful pre-employment background check and drug screening.


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Net Energy Metering 3.0 (NEM 3.0) is the incoming law created by the California Public Utilities Commission (CPUC). The new tariffs and fees will impact both residential and commercial solar systems built in California. 

As this notice is posted in November of 2022, the Proposed Decision from the CPUC outlining the proposed NEM 3.0 terms is expected soon. This comes after a year’s delay. Once the new agreement is finalized and passed into law, there will exist a designation of the deadline under which new systems will continue to qualify for NEM 2.0 rates. 

The new NEM 3.0 rates will be designed to lower the value of electricity during the daytime hours, when solar is producing, and increase the value of electricity during the evening hours, when solar homes and businesses purchase electricity. In short, NEM 3.0 will create a “sell low, buy high” proposition to new solar system owners. 

To Californians looking to install a solar system on their home or commercial building, the NEM 2.0 rates will be preferred. As of this post, the solar industry does not know the details of how different the NEM 3.0 rates will be from the NEM 2.0 rates. 

Please use the HES Solar website as a resource to learn more, and please take our offer to speak with an HES Solar Energy Consultant at no obligation.

Contact Us Today for a Free Estimate

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Robert Laverty

Senior Energy Consultant, Residential

Robert Laverty joined the HES team in the summer of 2018, bringing his ten years of solar design experience and his Bachelor’s degree from the University of Puget Sound with him. Robert is dedicated to finding solutions to help families produce and store electricity in order to reduce their reliance on grid power as well as help reduce their household’s carbon footprint. Robert’s experience as a newspaper editor as well as his involvement with the sustainability-focused Rocky Mountain Institute drives him to constantly seek out innovative ways to meet energy needs through renewable resources as well as helps him share those ideas with Southern California homeowners. When not at work or volunteering time with his church or community, Robert spends time with his wife and two sons or pursues his passion of fly fishing.
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