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# Systems Administrator I

- **Company:** HII Mission Technologies
- **Location:** Springfield, VA, United States
- **Experience:** Experienced
- **Salary:** $95,000.0 - $155,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Server Applications, Command-Line Interface, Configuration Management, Dynamic Host Configuration Protocol, Domain Name System (DNS), Monitoring of Systems, Microsoft Servers, Microsoft SQL Server, System Center Configuration Manager, Windows Servers, Networking Basics, Citrix Systems, Windows PowerShell, Microsoft SharePoint, Solution Deployment Descriptor, Systems Integration, Software Vulnerability Management, Information Technology, SolarWinds (Software), Splunk, Cisco, Servicenow
- **Published:** October 28, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9270510/systems-administrator-i

## About the Role

3+ years of hands-on systems experience providing O&M support of enterprise Microsoft Windows server operating systems and server applications (e.g., Active Directory, Exchange, File Services, SCCM/MECM, and Citrix)

 * Working with Active Directory as the centralized directory service for authentication and authorization for all users
 * Managing and configuring DHCP, DNS, and Group Policies
 * Performing system administration tasks via a command line interface (e.g., PowerShell)
 * Using remote monitoring and management tools to troubleshoot, assess, and resolve issues across a globally dispersed enterprise
 * Conducting vulnerability and flaw remediation via SCCM or MECM
 * Operating and maintaining solutions in a secure processing environment
 * Applying and maintaining a standard security configuration based on SRGs and STIGs

Active TS/SCI government security clearance required to start with ability to obtain CI Poly

Must meet DoD 8140/CSWF for 451-Intermedediate or be willing to obtain the appropriate credential within 6 months

Level Qualifications

Systems Administrator 1: High School Diploma or equivalent and 4 years relevant experience.

Systems Administrator 2: 3 years relevant experience with Bachelors in related field or High School Diploma or equivalent and 7 years relevant experience.

Systems Administrator 3: 6 years relevant experience with Bachelors in related field; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience.

Systems Administrator 4: 10 years relevant experience with Bachelors in related field; 8 years relevant experience with Masters in related field; or High School Diploma or equivalent and 14 years relevant experience.

Preferred

 * Prior experience with Citrix Virtual Applications and Desktop (CVAD)
 * Familiarity with basic network troubleshooting concepts and approaches
 * Formal training or vendor certifications on MS Server operating systems and/or applications and technologies such as MS, Citrix, Cisco, Splunk, SolarWinds, ServiceNow

## Description

HII's Mission Technologies division is dedicated to delivering cutting-edge solutions that advance national security and defense objectives. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.

The System Administrator will will serve as a technical resource responsible for operating, maintaining, and supporting enterprise Microsoft Windows Server environments that enable critical mission and business operations

Working under the guidance and direction of Senior Systems Administrators, you apply solid systems administration expertise to ensure Windows-based services are configured, secured, and maintained for reliability, performance, and compliance with established organizational and DoD standards., Key responsibilities include supporting and troubleshooting enterprise services such as Active Directory, Exchange, File Services, SharePoint, and SQL Server; performing system installations, configurations, patching, and routine maintenance; and ensuring system integration with enterprise monitoring, security, and configuration-management tools.

You will apply and maintain security configurations based on SRGs and STIGs, support vulnerability remediation using SCCM/MECM, and operate systems within a secure processing environment that meets all accreditation and audit requirements.

You will also use remote monitoring and management tools to identify, assess, and resolve issues across a globally dispersed enterprise, contributing to system stability and rapid incident response.

Additionally, you may participate in documenting system configurations, supporting change management processes, assisting with solution deployment activities, and coordinating with senior administrators to ensure environments remain secure, compliant, and aligned with mission needs.