Electrical Maintenance Technician - San Antonio

We are ERock!

ERock is a leader and innovator of Electrical Resiliency-As-A-Service. Our advanced dual-purpose microgrids protect companies, critical infrastructure, and communities from unexpected power outages, ensuring business continuity and civic durability.

ERock’s dual-purpose microgrids use natural gas and renewable natural gas (RNG) to drive the nation’s most dependable microgrids — all while producing significantly lower to zero carbon emissions than traditional diesel backup generators. Powered by GraniteEcosystem™, our revolutionary software system, ERock solutions provide 24/7/365 monitoring, optimization, and forecasts to enable worry-free, reliable power for businesses. The ERock solution brings together patented technologies, advanced dual-purpose microgrid designs and integrated end-to-end services. The Power is On and we keep it on.

What you’ll do…

We are looking for a skilled Electrical Maintenance Technician with experience in low-voltage and 3-phase power systems, generator maintenance, and field-based troubleshooting. This position requires hands-on work in the field—outdoors, in all weather—maintaining and repairing switchgear, generators, circuit breakers, and 24V control cabinets. You will work remotely in the field at the location specified in the job posting and will report directly to the Area Manager for that region.

Key responsibilities:

• Performing routine electrical maintenance on generators, switchgear, circuit breakers, and 24V control cabinets.
• Troubleshooting and repairing 3-phase power systems, wiring, and generator controls.
• Diagnosing faults in electrical panels, motor controls, and 24V systems.
• Working with mechanical teams on equipment swaps and alternator repairs.
• Using test equipment like multimeters and meggers to validate system function.
• Accurately logging work orders and tracking time via mobile tools and apps.
• Following all safety procedures and company policies.
• Safely prepare, operate, and maintain a motor vehicle for purposes of conduction company business.

Required Qualifications & Experience:

• 3+ years of electrical maintenance experience—preferably with generators, switchgear, or 24V controls.
• Proficiency in generator theory, AC/DC circuit theory, protection relays, and electrical troubleshooting practices.
• Ability to interpret Electrical and Mechanical schematics.
• Strong multitasking capabilities to manage multiple projects.
• Excellent written and verbal communication skills.
• Must possess valid driver’s license with acceptable driving record; successfully pass Motor Vehicle Record (MVR) check to ensure compliance with company standards and safe driving practices.
• Attention to Detail- Is thorough when performing work and conscientious about attending to detail
• Computer skills- Uses computers, software applications, databases and automated systems to accomplish work
• Flexibility-Technician have a rotating on call schedule. Must have availability to work evenings, weekends and/or holidays.
• Must be able to be on your feet for multiple hours a day.
• Must be able to climb ladders and lift 50 lbs safely
• Integrity- Work efficiently and effectively when with or without supervision.

Machines & Equipment

• Hands-on generator maintenance experience.
• Familiarity with ATS (Automatic Transfer Switches), power meters, and backup systems.
• Prior US Navy Electrical (EMN or ETN) experience a plus.

Preferred Skills:

• Demonstrate profound knowledge of electrical power distribution and control systems design.
• Possess mechanical systems experience.
• Have Technical hands-on Experience or equivalent relevant experience.
• Have hands-on experience with PLC systems (Deep Sea Electronics and AcSELerator).
• Exhibit a solid understanding of the National Electrical Code (NEC).

Your Rewards!

• Medical, Dental, Vision, and Prescription Drug Insurance
• Company-Paid Life Insurance
• Disability Insurance
• Paid Family Leave
• Flexible Spending Account (FSA)
• Healthh Savings Account (HSA)
• Wellness Programs and Incentives
• 401(k) Retirement Plan & Company Match
• Paid Time Off – Sick & Vacation Time
• Paid Holidays

Do you have what it takes to join the ERock team? Send us your resume today. 

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

ERock is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

At ERock, we embrace diversity, including all the unique characteristics that make us human: race, age, sexual orientation, gender identity, religion, disability, and education — to name a few. We understand and recognize that diverse backgrounds and perspectives strengthen our teams and our business. The foundation of our diversity efforts is closely tied to our core values specifically our value of “The Team” which includes “Mutual Respect, Openness, and Honesty.”