147d ago
147d ago
Job description
The Solar Applications Engineer I is an entry-level technical position responsible for supporting preconstruction, estimating, and engineering design workflows for commercial, industrial, and multi-building solar PV, battery energy storage systems (BESS), and EV charging infrastructure. Working under structured guidance, this role extracts technical specifications from architectural/electrical blueprints, models system production using specialized layout software, inputs system parameters into bidding platforms, and assists with preliminary site evaluations and vendor submittals.
Key Responsibilities
- Preliminary Design & Blueprint Extraction: Review architectural, structural, mechanical, and electrical construction drawings (single-line diagrams, panel schedules, electrical room locations) to extract site constraints and layout parameters for new construction and retrofit projects.
- Layout Modeling & Software Execution: Configure preliminary rooftop, carport, and ground-mount PV arrays in Helioscope and CAD Software, observing fire setbacks, structural obstacles, and shade obstructions.
- Bidding & Estimating Configuration: Input system specifications (modules, inverters, optimizers, racking systems, service voltage) into bidding software to prepare cost estimates and scope descriptions.
- Voltage & Electrical Verification: Verify electrical service ratings (208V, 240V, 480V three-phase vs. single-phase) and main panel busbar capacities against preliminary design drawings.
- Sales & Estimating Coordination: Process incoming sales requests, organize preconstruction project documentation, track vendor equipment quotes, and support lead estimators in clarifying bid deliverables.
- Site Walk & Quantity Take-Off Assistance: Assist project teams during preliminary site walks, taking field measurements and compiling basic electrical/civil material take-offs.
Qualifications & Technical Requirements
- Education: Bachelor's degree in Electrical Engineering, Civil Engineering, Construction Management, or a related technical discipline (recent engineering graduates welcomed).
- Experience: 0 - 2 years of experience in solar PV design, project engineering, or electrical estimating.
- Software Proficiency: Foundational knowledge of CAD software, Energy Simulation Software's, and Google Workspace / MS Office.
- Blueprint Reading: Ability to read and interpret single-line diagrams (SLDs), electrical panel schedules, and architectural blueprints.
- Industry Knowledge: Basic understanding of National Electrical Code (NEC 70) principles and commercial solar electrical systems.
Pay & benefits
US$65,000–75,000 /yr
Health insurance
Dental insurance
Vision insurance
Retirement plan
Paid time off
About this role
Posted
21 Oct 2026
Updated
21 Oct 2026
Job type
Full time
Workplace
Hybrid
Working hours
UTC-07:00
Experience
Entry-level
Employercalsolarinc.com
LinkedInCal Solar Inc
About Cal Solar Inc
Company Overview
Name
Cal Solar Inc., also known as California Solar Integrators Inc.
HeadquartersSan Diego, CA, United States
Founded2010
SizeApproximately 100-200 employees (source: rocketreach.co). Revenue estimated at $25 million annually (source: growjo.com).
What They Do
Cal Solar Inc. focuses exclusively on solar photovoltaic (PV) electric systems, solar water heating, battery storage, solar thermal, energy storage, microgrids, and EV charging infrastructure. The company delivers turnkey services that encompass design, engineering, permitting, procurement, construction, installation, maintenance, and financing (source: rocketreach.co). Their solutions target a diverse range of markets including multifamily housing, commercial and industrial buildings, offices, hotels, hospitals, warehousing, schools, low-income housing, public sector projects, senior living facilities, houses of worship, retail, manufacturing, and healthcare (source: calsolarinc.com). By serving developers, owners, operators, general contractors, and end-users exclusively within California, Cal Solar has established a strong foothold in the renewable energy sector.
Projects & Track Record
Cal Solar Inc. has completed over 600 engineered plansets and more than 500 large-scale projects across California, including over 200 prevailing wage jobs in sectors such as multifamily housing and commercial/industrial projects (source: calsolarinc.com). Notable clients include Meta Housing, Costco, Starbucks, and the LA Community College District, showcasing their capability to handle significant public works and commercial projects. The company operates in 13 electric utility territories and has established partnerships with various developers and contractors, enabling them to maintain a competitive edge in the market (source: cbinsights.com).
Recent Developments
In the last two years, Cal Solar Inc. has maintained steady operations without major contracts won, acquisitions, or funding rounds, distinguishing itself from competitors who have faced closures (source: savkat.com). A significant milestone was the launch of its statewide Solar EPC Services Division on June 15, 2022, which leverages in-house engineering and a large team of installers to serve solar developers and independent power producers (source: cbinsights.com). This division positions Cal Solar as a leading provider for commercial, multifamily, and public works projects, with over 600 completed projects to date.
Working There
Cal Solar Inc. employs a diverse range of roles across various departments, including design, engineering, estimation, installation, and commercial development. The company boasts a team of 10 engineers, over 100 field personnel, and experienced leadership with decades of industry experience (source: calsolarinc.com). The culture at Cal Solar emphasizes safety, quality, self-performance, and stakeholder collaboration, fostering an environment conducive to innovative solutions and growth. Hiring is likely across all offices, including their headquarters in Los Angeles and additional locations in San Diego, Oakland, and San Rafael (source: rocketreach.co). However, specific benefits packages have not been documented in available sources.
See how you’re connected
See your contacts at Cal Solar Inc on LinkedIn and tap your network when applying.
View connectionsMore solar jobs like this
US$96,000–120,000 /yr
64d ago
US$96,000–120,000 /yr
64d ago
US$128,610–157,190 /yr
38d ago
US$128,610–157,190 /yr
38d ago