Field Service Technician

Leidos’ Defense Systems Land Systems Business Area, RF Systems Division is seeking a Field Service Technician to join our team in our King of Prussia, PA, office to operate and maintain a complex radar system. This position will require the candidate to currently possess an active DOD – Secret Security Clearance. The field technician will work closely with Leidos engineers to operate and maintain a radar system and identify issues that require frequent travel to remote facilities to implement repair or replacement of system equipment. If this sounds like the kind of environment where you can thrive, keep reading! Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here! Are you ready to make an impact? Share your resume with us today! Primary Responsibilities: Install, integrate, configure, initialize, administer, operate, deploy, troubleshoot, maintain and repair a complex radar system. Assemble and troubleshoot electronic systems, mechanically integrated parts, cable harnesses, RF coaxial and fiber optic cables, and electronic and computer chassis. Perform System Integration and Checkout of modified and repaired equipment. Analyze equipment failures to determine root cause to then recommend and implement corrective action. Prepare and submit reports of equipment discrepancies and possible solutions, devise and implement preventive maintenance programs, and actively keep performance and maintenance records on equipment configuration. Keep accurate parts and equipment inventory records. Be self-motivated and able to work effectively both in a team environment and under minimal supervision in the field. Be willing to travel and work long hours and work in adverse weather conditions. Be willing and physically able to obtain a tower climber certification and climb cellular towers in support of equipment troubleshooting and maintenance. Basic Qualifications: High school diploma or equivalent and 5+ years civilian or military training and hands-on experience in relevant electronics system installation and maintenance such as radar systems, electronic countermeasure systems, electronic warfare systems or radio communications systems. Formal training in Basic Electronics & Electricity (RF, Digital & Analog principles), solid state electronics and RF theory and principles. Testing, troubleshooting and evaluation experience with digital, analog and RF level electronics. Understanding and knowledge of military communications systems and encryption devices. Understanding and knowledge of basic computer network (LAN/WAN) principles. Proficiency with standard test equipment such as multi-meters, signal generators, spectrum analyzers, power meters, oscilloscopes, logic analyzers to test and troubleshoot electronic hardware. Basic knowledge of electrical multi-pin connectors and the repair of same. Personal Computer knowledge with experience in word processing and spreadsheet creation, and technical writing skills to update documentation, maintain records and create reports to Program Management. Proficiency with general hand and electrical tools. Proficiency using Windows and Microsoft Office Suite. Position will frequently require lifting and moving products and parts weighing up to seventy-five (75) pounds, standing, walking, sitting, bending, kneeling, climbing ladders and stairs, climbing cellular towers, and working in small, restricted areas throughout the workday in both indoor and outdoor locations. Excellent written and oral communication skills. Must have an active DoD SECRET clearance; US Citizenship is required. Preferred Qualifications: Working knowledge of computer networking fundamentals, including TCP/IP, Ethernet, fiber, switching, routing, and network troubleshooting. CompTIA Security+ certification is a plus. Proficiency with using the Linux operating system environment. Proficiency navigating the operating system and executing programs from the command line. Experience handling and maintaining COMSEC equipment to include Inline Network Encryptors (e.g., KG-175, KG-250, etc.), Inline Media Encryptors / Data at Rest equipment, and Simple Key Loaders (SKLs). 1+ year Tower climbing experience to include installation, replacement, and repair of tower antenna systems HVAC maintenance and repair experience If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: July 13, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $59,150.00 - $106,925.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to View email address on click.appcast.io. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.