Systems Administrator I (Domain & Server)

AMERICAN SYSTEMS; Manassas (VA); On-site; USD 90,000 - 130,000; Full time

Job summary

AMERICAN SYSTEMS is hiring a Systems Administrator I (Domain & Server) in Manassas, VA. The role focuses on foundational administration of enterprise IT infrastructure, including Windows and Linux servers, Active Directory, DNS, DHCP, and domain services.

You will support virtualization (NUTANIX, VMware, Hyper‑V), storage, backup, and recovery, while adhering to security and compliance requirements. You will collaborate with cross‑functional teams to ensure system availability, apply patches,

Qualifications

• U.S. Citizen per 8 U.S.C. 1324b(a)(2)(C).
• Active Secret clearance with ability to obtain Top Secret with SCI eligibility.
• 1–3 years of systems administration or related IT support.
• Current 8570/8140 IAT Level II Certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP).
• Foundational knowledge of server administration and enterprise infrastructure support.
• Familiarity with Active Directory, DNS, DHCP, and Group Policy.
• Familiarity with storage, backup, and recovery concepts.
• Exposure to automation and monitoring tools (PowerShell, Splunk).

Responsibilities

• Provide foundational administration, maintenance, and technical support for enterprise IT infrastructure.
• Assist with Active Directory, Exchange, DNS, DHCP, and domain services.
• Support Windows and Linux servers for performance, security, and availability.
• Assist with virtualization environments and hosted systems.
• Create and update system configuration and troubleshooting documentation.
• Coordinate with cross-functional teams to meet technology needs.
• Troubleshoot routine issues and escalate complex incidents.

Skills

Active Directory

DNS

DHCP

Group Policy

PowerShell

Ansible

Terraform

VMware

Hyper-V

Cloud platforms (AWS/Azure/GCP)

Splunk

Git

Troubleshooting

Team collaboration

Tools

NUTANIX

VMware

Hyper-V

Job description

Systems Administrator I (Domain & Server)

Location: US-VA-Manassas

ID: 2026-4626

Overview

Now Hiring at AMERICAN SYSTEMS. Epsilon, Inc. has joined AMERICAN SYSTEMS! As one organization, we offer expanded resources, streamlined operations, and increased opportunities for growth and development.

Join us to be part of a dynamic, collaborative environment dedicated to innovation and customer success.

Responsibilities

An Average Day: As the Systems Administrator I (Domain & Server) you will be responsible for providing foundational administration, maintenance, and technical support for enterprise IT infrastructure, including Microsoft Server environments and domain services. You will assist with the operation of critical systems such as Active Directory, Exchange Server, DNS, and DHCP services, while supporting Windows and Linux server environments to maintain performance, security, and availability. You will also support system monitoring, routine troubleshooting, account administration, documentation, and coordination with senior team members and cross-functional teams to meet organizational technology needs. Additionally, in this position you will:

• Assist in administering and maintaining Windows and Linux servers to support system availability and performance.
• Support the installation, configuration, maintenance, and patching of operating systems and applications.
• Assist with virtualization environments (e.g., NUTANIX) and perform routine administrative tasks related to hosted systems.
• Follow established security procedures, including access control, systems hardening, and vulnerability remediation activities.
• Support storage administration, backup processes, and recovery operations.
• Assist with system upgrades, migrations, and disaster recovery activities.
• Create and update documentation for system configurations, procedures, and troubleshooting activities.
• Troubleshoot routine system issues and escalates more complex incidents as appropriate.
• Work with cross-functional teams, including network, security, and application teams, to support day‑to‑day infrastructure operations.
• Support infrastructure improvement efforts under the guidance of senior administrators.

Qualifications

• All candidates must be a U.S. Citizen as required by 8 U.S.C. 1324b(a)(2)(C).
• Must have an active Secret clearance with the ability to obtain a Top Secret with SCI eligibility or have an active Top Secret with SCI eligibility; Will be subject to a federal background investigation.
• Minimum of 1 to 3 years of experience in systems administration or related IT support, with hands‑on experience in Windows and Linux environments.
• Must hold a current 8570/8140 IAT Level II Certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP).
• Foundational knowledge of server administration, domain services, and enterprise infrastructure support.
• Familiarity with Active Directory, DNS, DHCP, and Group Policy.
• Familiarity with virtualization technologies such as VMware, Hyper‑V, or similar platforms.
• Familiarity with storage management, backup, and recovery concepts.
• Familiarity with cloud platforms (AWS, Azure, or GCP) and hybrid cloud environments.
• Exposure to automation tools such as PowerShell, Ansible, or Terraform.
• Familiarity with monitoring tools such as Splunk.
• Familiarity with Git for version control.
• Basic knowledge of security frameworks, including NIST, FISMA, or DISA STIG compliance.
• Must be able to work under direction while managing assigned tasks and priorities effectively.
• Good troubleshooting skills with the ability to diagnose and resolve routine system issues and to escalates when necessary.
• Strong communication skills and the ability to work effectively in a team‑oriented environment.

Pay Transparency Statement

AMERICAN SYSTEMS is committed to pay transparency. The salary range for this position is USD $90,000.00/Yr. - USD $130,000/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program that includes healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.

EEO Statement

EEO Race/Sex/Disability Status/Veteran Status.