TS/SCI Systems Administrator - Windows & Security

Mission Technologies, a division of HII; Springfield (VA); On-site; USD 95,000 - 155,000; Full time

Job summary

Mission Technologies, a division of HII, seeks a Systems Administrator to operate, maintain, and support enterprise Microsoft Windows Server environments enabling critical missions. You will work under Senior Systems Administrators to ensure Windows-based services are configured, secured, and reliable for DoD standards.

The role requires TS/SCI clearance with CI Poly potential, experience with Active Directory, Exchange, SCCM/MECM, and Citrix, and a focus on security configurations and

Qualifications

• 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

Responsibilities

• Support and troubleshooting of enterprise services such as Active Directory, Exchange, File Services, SharePoint, and SQL Server; perform installations, configurations, patching, and routine maintenance; ensure integration with monitoring, security, and configuration-management tools
• Apply and maintain security configurations based on SRGs and STIGs; support vulnerability remediation using SCCM/MECM
• Operate systems within a secure processing environment meeting accreditation and audit requirements
• Use remote monitoring and management tools to identify, assess, and resolve issues across a globally dispersed enterprise
• Document system configurations, support change management processes, assist with solution deployment activities, and coordinate with senior administrators to ensure secure, compliant environments

Skills

Active Directory

Exchange

PowerShell

SCCM/MECM

Citrix

DNS

DHCP

Group Policy

RMM tools

Windows Server

Education

Bachelor's degree in related field

High School Diploma or equivalent

Master's degree in related field

Tools

Citrix Virtual Apps and Desktop (CVAD)

MS Server operating systems

Splunk

SolarWinds

ServiceNow

Cisco

Job description

Mission Technologies, a division of HII, seeks a Systems Administrator to operate, maintain, and support enterprise Microsoft Windows Server environments enabling critical missions. You will work under Senior Systems Administrators to ensure Windows-based services are configured, secured, and reliable for DoD standards.

The role requires TS/SCI clearance with CI Poly potential, experience with Active Directory, Exchange, SCCM/MECM, and Citrix, and a focus on security configurations and