Field Service Engineer

Join to apply for the Field Service Engineer role at Stored Energy Systems LLC (SENS).

Stored Energy Systems (SENS) is an award‑winning manufacturer of premium quality power conversion products located in Longmont, CO. In business for over 50 years, SENS is the market leader with a proven track record of providing highly reliable battery chargers, DC power systems, and related products to industrial markets. For more information on our company please see our web site at

Paid range: $36.00 /hr – $41.00 /hr (actual pay will be based on skills and experience).

• Handles moderately complex issues and problems and refers more complex issues to higher‑level staff.
• Work directly with customers and installers in the field providing various field service activities for SENS offerings from planned maintenance, equipment upgrades, troubleshooting, and repair.
• Utilize SENS specifications, drawings, certified electrical standards, work instructions, procedures and customer orders to ensure product matches requirements.
• Responsible for testing electrical systems and continuity of circuits in electrical wiring, equipment, and fixtures, using testing devices such as ohmmeter, voltmeters, and oscilloscopes to ensure compatibility and safety of the system.
• Perform battery testing on VRLA, lead acid, Lithium‑ion, Nickle‑zinc and salt batteries.
• Install battery monitoring systems on new and existing battery strings.
• Responsible for adhering to all safety regulations and the use of Personal Protective Equipment (PPE).
• Keep detailed records to ensure adequate inventory of necessary supplies and parts.
• Testing of products to ensure adherence to customer requirements.
• When not travelling, support by answering technical support calls, returned material evaluation and equipment troubleshooting in the lab.
• Maintain an intermediate level of product knowledge and applications.
• Assist with computer network applications including troubleshooting and installation.
• Maintain and transport a toolkit sufficient for the majority of field service tasks.
• Feedback observations, customer concerns, and common issues encountered.

• 2+ years of related experience with troubleshooting, maintenance, installation and repair in the field.
• Electrical and mechanical aptitude to perform real‑time troubleshooting, maintenance, and repair.
• Electrical safety knowledge and practices.
• Strong communication skills with an emphasis on customer service.
• Ability to read and understand blueprints, one lines, and specification literature.
• Ability and willingness to work in various environments, including active construction sites.
• Ability to use digital tools to respond to and document service requests.
• Self‑starter mentality with strong technical, analytical, and problem‑solving skills.

• Bachelor’s degree or equivalent training in an electrical/electronic trade school or company‑provided journeyman path.
• Battery handling and testing experience.
• Computer networking application experience.
• Telecom equipment knowledge.
• NFPA‑70e, LOTO, OSHA‑10, First Aid/CPR/AED training.

• Must be at least 18 years of age.
• Must possess a valid driver’s license and maintain a clean motor vehicle record.
• Must be legally authorized to work in the United States without employer sponsorship.
• Must be able to read and effectively communicate in English.
• Must be able to lift 80 lbs. and work on your feet for extended periods of time.
• Must be able to travel 50%-70% of the time.

While Colorado‑based candidates are preferred, we will consider candidates located within a commutable distance to major airports in the following cities:

• Denver:
  Denver International Airport (DEN)
• Phoenix:
  Phoenix Sky Harbor International Airport (PHX)
• Chicago: O’Hare International Airport (ORD) or Midway International Airport (MDW)
• Dallas:
  Dallas/Fort Worth International Airport (DFW) or Dallas Love Field (DAL)

Candidates in other metropolitan areas with access to a major US airport may also be considered.

December 15th, 2025 (position may close earlier based on applicant volume and hiring needs).

We offer a…