Sr. Tier 2 Helpdesk Specialist

Leidos is seeking an Sr. Tier 2 Helpdesk Specialist to support large-scale migration and operations on a large, high-profile DOD contract in Fort Belvoir, VA. The I3TS program provides enterprise-wide IT support to enable DTRA’s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA’s internal and external mission partners operating in CONUS and OCONUS locations.

In this role, a successful candidate you will provide IT Service Desk support installing, operating, maintaining, troubleshooting, administrating, and cybersecurity defense of data and applications hosted in the DTRA Data Center on both the classified and unclassified systems.

Must currently hold an active DOD TS/SCI clearance

• Troubleshoot, resolve, and/or elevate technical issues based on ticket assignments deskside or remotely, as necessary.
• Correlate events and incidents for management of Information Technology (IT) Services.
• Provide great and prompt customer service to DTRA personnel by assisting them with IT-related issues.
• Document and communicate degradation of services or outage issues information to customers and help with resolution.
• Follow ITSM and ITIL processes to ensure quality of services and prompt resolution.
• Ensure your assigned tickets stay within the program’s AQL/SLA commitments.
• Utilize Remedy and/or Service Now for queue and work management.
• Ensure all tickets, requests, and work orders are properly documented.
• Create or coordinate the development of Knowledge Base Articles (KBA)
• Troubleshoot complex problems and able to derive root causes and apply correct fixes or workarounds.
• Provide support for new employees setting up ADPE (ex. Monitors, keyboard, mouse, VDI, laptop, phone, printer, VTC suite), ensuring network connectivity, and any unresolved account administration providing access to the necessary websites, applications, or services.

• Bachelors Degree with 8+ years of relevant experience or a Masters Degree with 6-10 years of experience. Additional experience will be considered in lieu of a degree.
• Active DOD TS/SCI clearance
• Current 8140 (Previously 8570), IAT Level II (SEC+ or equivalent) prior to your start date with Leidos, as well as ability to maintain certification for duration of assignment to the DTRA I3TS contract.
• Experience in IT customer service including two (4) years of IT ticketing system experience and one (1) year of experience in remote desk takeover tools and usage.
• Experience meeting service level goals and targets.

• Systems or network administration experience in Windows Server and/or Cisco environments.
• Familiarity with automated call distribution systems.
• Certification in a process-based platform including programs equal to ITIL, HDI, CoBIT, Lean Six, Six Sigma,etc.

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.

August 7, 2026

Pay Range $82,550.00 - $

The Leidos pay range for this job level is a general guideline onlyand 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 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

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 at

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.