Systems Administrator

Job Description

Description

Leidos- Systems Administrator

📍 Location : Alexandria, VA

🔐 Clearance Required : Active DoD Top Secret (SCI eligibility)

🛡️ Sector : Leidos National Security Sector – Engineering, Integration and Operations

Leidos, Inc. has an immediate job opening in Alexandria, Virginia for a Systems Administrator to contribute to the support of the Office of the Secretary of Defense (OSD) Cost Assessment and Program Evaluation (CAPE) Joint Data Support (JDS). Work location is at the Mark Center in Alexandria, VA with the potential for telework up to 20% of the time.

Basic Qualifications

BS degree and a minimum of 4+  years of prior relevant experience or Masters with 2 + years of prior relevant experience (ability to substitute years of experience for a degree).

CompTIA Security + certification

4+ years of demonstrated experience in management of DoD systems, networks, and IT infrastructure configuration.

4+ years of experience as a Systems Administrator for classified and unclassified networks. Experience with rack mounted servers, network switches, and backup solutions.

Demonstrated experience with : DoD software approval process, Risk Management Framework, and Nessus system security scanning procedures.

Experience implementing DoD Security Technical Implementation Guide requirements on Windows based systems.

Clearance Requirements : Active Top Secret clearance with the ability to obtain a SCI clearance

Preferred Qualifications

Military experience

May possess a Doctorate in technical domain.

Experience with ACAS and Nessus security scanning

Application of STIG settings through Group Policy

Experience with SEIM applications

Primary Responsibilities

Provide support to the customer’s infrastructure Windows Servers by maintaining user access, installing required DoD security patches, and updating the system’s operating systems.

Candidate would be trained to take on Information System Security Officer (ISSO) for a highly secure facility. Manages limited access projects and responsible for the submission of required documentation for the Authority to Operate (ATO) issued by the DoD CIO office.

Design and implement Information Technology infrastructure requirements to support TS / SCI and SAP projects.

Planning and executing scheduled file backups using DoD Enterprise approved solutions.

Perform Database Administration for Microsoft SQL Server to include : version upgrades, database creation and user access permissions. Perform database tuning, and scheduled backup maintenance.

Installs and configures of DoD Enterprise Servers, with robust, fault-tolerant data storage, and DoD STIG Compliance using the DoD Enterprise security scanning software.

Implementing and supporting Information Assurance (IA) and security activities, using the DoD Enterprise McAfee HBSS software suite, and STIG Compliance checks.

Identifies hardware and software requirements. Develops an acquisition plan, and monitors hardware and software acquisitions. Maintains a record of hardware and software.

Maintain the capability to provide infrastructure support for the TS / SCI facility.

Support onsite IT requirements for CAPE and Joint Staff conferences to include war games within the JDS conference rooms. Install and maintain standalone network with client workstations and a centralized server. Support conference specific applications, continuity of operations during conferences to include SVTC meetings and print large high resolution maps from the customer plotter.

Work with the Joint Service Provider to implement firewall rules to allow the successful use of JDS applications to internal and remote clients.

Applies vendor software patches from the DoD Software Repository to JDS systems to resolve security vulnerabilities.

EIO2024

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting : October 6, 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.