Systems Administrator

Peraton•Herndon, VA

15d•$104,000 - $166,000

About The Position

Peraton is seeking a Systems Administrator with an active TS/SCI clearance to support mission-critical operations. The role manages, maintains, and enhances secure Windows-based environments, ensuring uptime and performance for essential applications. The administrator works closely with Information Assurance teams on continuous monitoring, cybersecurity compliance, and remediation of vulnerabilities identified through Nessus scans. The position includes configuring and maintaining Windows servers and desktops, implementing security mitigations, meeting government standards, leading assigned Classified IT Services (CITS) projects, and working with CITS leadership to identify technologies for new Peraton program contracts. The administrator also interacts with users, evaluates vendor products, recommends hardware and software purchases, coordinates installations, provides backup recovery, and develops and monitors policies and standards for allocating computing resources.

Requirements

Active TS/SCI clearance and ability to obtain a polygraph.
Bachelor’s degree and 8 years of relevant experience; an additional 4 years of experience may substitute for a degree.
3–5+ years managing virtualized Windows environments within classified, secure environments.
Understanding of system security requirements in DoD or Intelligence domains, including STIGs and RMF.
Customer service skills.
Ability to work in a fast-paced, high-security environment.
Strong troubleshooting and problem-solving abilities.
Effective communication skills and ability to document technical processes clearly.

Nice To Haves

Polygraph.
Experience with virtualization technologies such as VMware, Hyper-V, or OpenShift.
Experience with Exchange, SharePoint, and MECM.

Responsibilities

Perform continuous system monitoring using vulnerability scanning tools such as Tenable Nessus.
Identify and analyze vulnerabilities from weekly and monthly scans.
Mitigate vulnerabilities by reconfiguring Linux servers and desktops or applying patches, security updates, and configuration changes.
Track, document, and report vulnerability remediation activities to support compliance with RMF or Intelligence Community standards.
Deploy, configure, maintain, and secure Windows-based servers and desktops.
Maintain the VMware virtualization platform.
Manage Active Directory services, folder and file permissions, and Group Policy management and compliance.
Harden systems using STIGs or custom configurations.
Monitor system performance, security, and availability, and resolve issues proactively.
Maintain system backup and disaster recovery procedures.
Collaborate with cross-functional teams on system integration and deployment.
Stay current with technological advancements and recommend improvements.
Maintain detailed system configuration documentation.
Document vulnerability findings, mitigations, and resolutions in tickets or compliance reports.
Support security audits by providing technical information and collaborating with Information Assurance teams.
Work with Information Assurance and Cybersecurity teams to ensure systems meet security requirements.
Collaborate with network administrators and application teams to integrate Linux environments supporting enterprise solutions.
Interact with users, evaluate vendor products, recommend hardware and software purchases, coordinate installations, and provide backup recovery.
Develop and monitor policies and standards for allocation and use of computing resources.
Lead assigned CITS projects and work with CITS leadership to identify technologies for new Peraton program contracts.

Benefits

Medical benefits.
Dental insurance.
Vision insurance.
Life insurance.
Health savings account.
Short- and long-term disability.
Employee Assistance Program (EAP).
Parental leave.
401(k).
Paid time off for vacation.
Company-paid holidays.
Employees may be eligible for overtime, shift differential, and a discretionary bonus, depending on the position.