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Senior Field Service Engineer (FSE)

Epirus
United Statesfull_timeVerifiedPosted 10 Feb 2026
💰 $119,800/yr($98,700/yr$119,800/yr)

About the role

About Epirus

Epirus is a high-growth technology company developing solid-state, software-defined directed energy systems that enable unprecedented counter-electronics effects and power management solutions to optimize power efficiency in defense and commercial applications. With a constant emphasis on innovation, we are redefining the future of power to bring tomorrow’s capabilities to life, today. And that’s just the beginning.

 

Job Summary: Epirus is seeking a Field Service Engineer (FSE) III with the ability to provide advanced technical support, troubleshooting, and operational oversight in support of Epirus High Power Microwave Counter Unmanned Aerial Systems (HPM-CUAS). This individual will work as a member of a small team with a primary focus on the maintenance, training support and sustainment of fielded HPM assets. The FSE will directly support the maintenance of the fielded HPM-CUAS equipment, re-installation of Line repairable units (LRUs), training, integration, and sustainment of these solutions with existing client infrastructure at CONUS and OCONUS locations. Candidate will provide hands-on support for HPM-CUAS technical, network, and integration projects. This role requires hands-on expertise in electrical, mechanical, and software systems, as well as the ability to work in high-pressure situations supporting defense operations. 

This position requires a high degree of technical skill, personal resilience and flexibility, strong interpersonal skills, and the ability to work as part of a cross-functional team in a variety of physical environments. 

Responsibilities:

  • Work closely with engineering teams to provide feedback on system performance and potential design improvements. 
  • Coordinate with project managers, logistics personnel, and customers to ensure timely resolution of issues. 
  • Conduct install/uninstall of HPM-CUAS systems in a variety of locations / environmental conditions to support client operations, test and evaluations, Tactics, Techniques and Procedure (TTP) / Doctrine development, and New Equipment Training (NET) courses. 
  • Make recommendations on equipment modifications/upgrades based on experience gained through testing and operational use of HPM-CUAS systems. 
  • Deploy overseas locations to perform technical inspections, system checks, fault diagnosis, identify cause of failures, and replace Line Repairable Unit (LRU), test and restore HPM-CUAS systems to full functionality. 
  • Conduct advanced programming of HPM-CUAS systems (install/upgrade firmware, software upgrades, etc.). 
  • Work with the Epirus training and enablement team to develop and conduct training on the proper care, use, maintenance, and preventive maintenance of systems. 
  • Work closely with engineering teams to provide feedback on system performance and potential design improvements.

Basic Qualifications: 

  • Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Physics, or a related technical field AND minimum 5 years of related experience (or 3 years and a Master’s degree). 
  • Proficiency in troubleshooting and repair of electronic and mechanical systems. 
  • Knowledge of high-power RF generation, wave propagation, and directed energy principles. 
  • Familiarity with test equipment (oscilloscopes, spectrum analyzers, RF power meters, etc.). 
  • Strong technical writing and verbal communication skills. 
  • Ability to provide technical advice and guidance on installation, adaptation, configuration and/or enhancement of company technical products, programs, and systems. 
  • Candidate must hold a valid U.S. passport or have the ability to obtain a U.S. passport. 
  • Current SECRET security clearance is required.  
  • Military experience with CUAS Systems (RF Detection, Radar, EO/ IR Optical systems, Command and Control (C2) Systems.  
  • Experience working in field operations, including deployment in austere or challenging environments. 
  • Experience working independently or as a team member, to solve project and/or engineering problems. 
  • Ability to use and communicate a wide variety of technical data from OEM manuals, engineering drawings, etc. to engineers as well as to non-technical system end users. 
  • The position requires daily interaction with customers at multiple levels.  
  • Candidate must possess and use a high degree of tact and interpersonal communication skills in daily interactions with team members, clients, vendors, and end users. 

 

Preferred Skills and Experience:

  • Previous experience with HPM or other directed energy systems. 

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Company

Epirus

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