Systems Administrator II (Domain and Server) (JSF)

American Systems•Manassas, VA

24d

About The Position

AMERICAN SYSTEMS is hiring a Systems Administrator II to administer, maintain, and support enterprise IT infrastructure, including Microsoft Server environments and domain services. The role supports Active Directory, Exchange Server, DNS, and DHCP, and administers Windows and Linux server environments to maintain performance, security, and availability. It also involves system monitoring, troubleshooting moderately complex technical issues, implementing approved security controls, managing accounts and permissions, and collaborating with cross-functional teams. The position includes administering operating systems and applications, supporting virtualization and storage environments, and assisting with backup and recovery, system upgrades, migrations, and disaster recovery. The administrator documents configurations and procedures and helps ensure infrastructure operations meet established policies and compliance requirements.

Requirements

Must be a U.S. Citizen.
Must have an active Secret clearance with the ability to obtain Top Secret with SCI eligibility, or an active Top Secret clearance with SCI eligibility; subject to a federal background investigation.
3 to 5 years of systems administration experience, including hands-on experience in Windows and Linux environments.
Current 8570/8140 IAT Level II certification: CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, or SSCP.
Strong technical knowledge of server administration, domain management, and enterprise infrastructure support.
Experience managing Active Directory, DNS, DHCP, and Group Policy in enterprise environments.
Experience with virtualization technologies such as VMware, Hyper-V, or similar platforms.
Experience supporting SAN and NAS storage management and backup/recovery operations.
Experience with automation tools such as PowerShell, Ansible, or Terraform for system configuration and management.
Experience with monitoring tools such as Splunk for system performance monitoring.
Experience with Git for version control.
Working knowledge of security frameworks, including NIST, FISMA, or DISA STIG compliance.
Ability to work independently on assigned tasks while managing multiple priorities in a fast-paced enterprise environment.
Strong troubleshooting skills, focused on diagnosing and resolving moderately complex system issues.
Strong communication skills and ability to work effectively in a team-oriented environment.

Nice To Haves

Familiarity with cloud platforms such as AWS, Azure, or GCP and hybrid cloud environments.

Responsibilities

Administer and maintain Windows and Linux servers to ensure availability, performance, and operational stability.
Manage deployment, configuration, maintenance, and patching of operating systems and applications.
Support virtualization environments such as NUTANIX to maintain resource utilization and platform reliability.
Implement and maintain security measures, including access control, system hardening, and vulnerability remediation, in accordance with policies and compliance requirements.
Manage SAN and NAS storage solutions and support backup and recovery operations.
Participate in system upgrades, migrations, and disaster recovery planning and execution.
Develop and maintain documentation for system configurations, operational procedures, and troubleshooting activities.
Troubleshoot moderately complex system issues and respond to incidents to ensure timely resolution.
Collaborate with network, security, application, and other cross-functional teams to support and improve infrastructure operations.
Support Active Directory, Exchange Server, DNS, and DHCP services; monitor systems; and manage user accounts and permissions.