Systems Administrator

Leidos is seeking a System Administrator in Fort Belvoir, VA to support large-scale migration and operations on a large, high-profile DOD contract. 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   

The System Admin intermediate will be responsible for installations, configurations, administration, support and maintenance of systems, including associated hardware. Duties will include management of systems infrastructures, implementing best practices to identify and recommend system functional specifications, configuration of physical and virtual systems, backup and recovery of IT infrastructure. Support duties will include updating and supporting systems by tuning performance, allocating storage space. Implementing critical patches, reviewing systems performance logs to identify anomalies and troubleshooting issues.  

Primary Responsibilities: 

• Provide input on budget and resource assets.  

• Assisting in hiring processes for multiple labor categories as requested  

• Develop technical teams as necessary  

• Coordinate with PMO and all Tier levels while also maintaining the ability to use knowledge of VMware Horizon View, vSphere, VDI to troubleshoot and resolve complex problems  

• Be able to work in a rapid paced environment and must be able to work independently.  

• Lead the onboarding and standup of new enclaves and compute environments.  

• Interacts with users and evaluates vendor products.  

• Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery.  

• Develops and monitors policies and standards for allocation related to the use of computing resources.  

• Creates, maintains, and implements detailed documentation and maintains standard operating procedures.  

• Application of security settings and other best commercial practices such as DISA STIGS.   

Basic Qualifications:  

• BS and 4 – 8 years of prior relevant experience with a Windows/Linus server environment  or Masters with 2 – 6 years of prior relevant experience. Specific experience, education and training may be considered in lieu of degree.

• Management and supervision of employees of various labor categories and skills in a complex, medium to large IT Infrastructure program, preferably for the US Government.  

• Extensive experience working with virtual environments using VMware  

• Shell scripting (e.g. bash) and experience in other languages like Perl, Python, and Java.  

• Experience with application of security settings and other best commercial practices such as DISA STIGS.  

• Experience with Intrusion Detection/Prevention Systems (such as FireEye and McAfee sensors and sandboxes)  

• Experience with Security Incident Event Management (SIEM)   

• Must have at least an active Secret clearance with the ability to obtain a Top Secret  

• Currently they possess DoD 8750 certification at least IAT level II, e.g. Security+.  

Preferred Qualifications:  

• Extensive experience working with virtual environments using VMware  

• Shell scripting (e.g. bash) and experience in other languages like Perl, Python, and Java.  

• Experience with application of security settings and other commercial best-practices such as DISA STIGS.  

• Experience with Intrusion Detection/Prevention Systems (such as FireEye and McAfee sensors and sandboxes)  

• Experience with Security Incident Event Management (SIEM) including Splunk  

• Must have at least an active Secret clearance with the ability to obtain a Top Secret  

• Currently possess DoD 8750 certification at least IAT level II, e.g. Security+ce.  

• ITIL certification

Original Posting:

May 8, 2025

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 $72,150.00 - $130,425.00

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.