Sr. Tier 2 Helpdesk Specialist

Job description

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.

Clearance

Must currently hold an active DOD TS/SCI clearance Primary Responsibilities: Troubleshoot, resolve, and/or escalate 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.

Basic Qualifications

High School with 5+ years of relevant experience. 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.

Preferred Qualifications

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.

Original Posting

October 16, 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 $52,000.00 - $94,000.00 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.