Field Service Technician III

Sierra Nevada Corp.

Jacksonville, FL

If you have a keen eye for the big picture, excellent technical data analysis skills, and enjoy working collaboratively, we may have the perfect role for you! As a Field Service Technician III, you will be using your skills and expertise to perform a variety of maintenance and technical support on our products such as equipment, integrated systems and subsystems, and software at customer and/or field locations. You'll be responsible for installing, operating, maintaining, repairing, and modifying our products and updating and tracking the status of all field related equipment. You'll build and maintain effective relationships with our customers and provide them with onsite training.

The Mission Solutions and Technologies (MST) business area provides affordable, turn-key command/control, communications, integrated ISR, force protection and security solutions worldwide. The MST team has a long legacy of supporting the Department of Defense, Department of Homeland Security, commercial and international customers with years of experience in platform operations, engineering and full lifecycle management across domains – air, land, sea, space and cyber. Learn more about MST


  • Associate's degree in a related field and typically 4 or more years of relevant experience
  • A higher-level degree may substitute for experience
  • Related experience may be considered in lieu of required education
  • Ability to understand and interpret basic technical schematics, diagrams, blueprints, manuals and/or publications
  • Progressive experience using troubleshooting techniques
  • Thorough understanding of electrical wiring concepts
  • Ability to frequently travel outside the continental US, typically for extended periods of time
  • Hands-on experience with wireless networks, tactical communications and personal computers
  • Communication and customer interface skills
  • Thorough understanding of system level maintenance of networks and communications systems
  • Active TS/SCI with ability to obtain Poly


  • Working knowledge of operating military units and logistics
  • Familiarity with the network and integration of traditional communications systems and sensors
  • Ability to read schematics, use service manuals, follow test procedures, and use logical trouble shooting techniques.
  • Experience with RF, vehicle installation and maintenance procedures
  • Background in the Aerospace and Defense Industry, Government, or US Military
  • Leadership experience in the military or civilian organization
  • The ability to maintain a Security Clearance is be required

At Sierra Nevada Corporation (SNC) we deliver customer-focused technology and best-of-breed integrations in the aerospace and defense sectors. SNC has been honored as one of the most innovative U.S. companies in space, a Tier One Superior Supplier for the U.S. Air Force, and as one of America’s fastest-growing companies. Learn more about SNC

SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more.


This position requires current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use. Learn more about the background check process for Security Clearances

At Sierra Nevada Corporation (SNC), our mission is to dream, innovate, inspire and empower the next generation to transform humanity through technology and imagination. As an Equal Opportunity Employer, we welcome our employees to bring their whole selves to their work. SNC is committed to fostering an inclusive, accepting, and diverse environment free of discrimination. Employment decisions are made without regarding to race, color, age, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran or other characteristics protected by law. Contributions to SNC come in many shapes and styles, and we believe diversity in our workforce fosters new and greater ways to dream, innovate, and inspire.