Systems Administrator II (Domain and Server) (JSF)

AMERICAN SYSTEMS•Manassas, VA

26d•$90,000 - $110,000

About The Position

AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs in Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. The Systems Administrator II (Domain and Server) administers, maintains, and supports 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 includes system monitoring, troubleshooting moderately complex technical issues, implementing approved security controls, managing user accounts and permissions, and collaborating with cross-functional teams.

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 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 storage management, including SAN and NAS solutions, and backup/recovery operations.
Familiarity with cloud platforms such as AWS, Azure, or GCP and hybrid cloud environments.
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.

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 efficient resource utilization and platform reliability.
Implement and maintain security measures, including access control, system hardening, and vulnerability remediation, in accordance with established policies and compliance requirements.
Manage storage solutions, including SAN and NAS, 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, and application teams to support and improve infrastructure operations.
Support enterprise domain services and critical systems, including Active Directory, Exchange Server, DNS, and DHCP.
Monitor systems, manage user accounts and permissions, and implement approved security controls.