Sr System Administrator

Moseley Technical Services, Inc.•North Charleston, SC

92d•Onsite

About The Position

This is a contract position for a Sr System Administrator in North Charleston, SC. The role involves leading Windows system administration tasks, including configuration, patching, and performance tuning for Windows Server 2012/2016, SQL Server 2014, and Windows 10 environments. The administrator will also travel to customer sites for installation, upgrades, and support, configure and maintain Active Directory, Group Policy, and Exchange, and support workstation imaging and deployment. Responsibilities include HBSS configuration and deployment, system compliance support, troubleshooting Windows domains and network services, providing Tier 1 and Tier 2 support, monitoring system performance, maintaining documentation, mentoring junior administrators, and participating in strategic planning.

Requirements

Active Secret Clearance required
Several years of hands-on system administration experience in DoD or secure environments
Must be willing and able to travel nationally and internationally for customer needs.
Strong expertise in Windows Server 2012/2016 and Microsoft SQL Server 2014
Basic proficiency with Red Hat Enterprise Linux 6+
Proven experience with Active Directory, Group Policy, and Exchange installation and maintenance
Familiarity with HBSS, STIGs, IAVA, and ACAS security compliance
Proficient in troubleshooting registry, networking, and Windows services
Experience with software distribution, workstation imaging, and system rollout

Nice To Haves

Security+ or other DoD 8570 compliant certification
Scripting/automation (e.g., PowerShell, Bash, Ansible)
Virtualization experience with VMware or Hyper-V
Exposure to cloud platforms is a plus

Responsibilities

Lead Windows system administration tasks including configuration, patching, and performance tuning for Windows Server 2012/2016, SQL Server 2014, and Windows 10 environments.
Travel to customer sites to oversee installation, upgrades, and support of software and hardware in line with military systems architecture and IT policies.
Configure and maintain Active Directory, Group Policy, and Exchange environments for secure, high-availability operations.
Support workstation imaging, deployment, and management using enterprise-level tools.
Perform HBSS configuration and deployment, and support system compliance through IAVA, STIGs, and ACAS standards.
Troubleshoot and resolve issues related to Windows domains, network services (DNS, DHCP, WINS), registry settings, and directory structures.
Provide Tier 1 and Tier 2 support, escalating complex issues when necessary.
Monitor and optimize system and network performance for operational continuity.
Maintain accurate documentation of system configurations, processes, and troubleshooting steps.
Mentor junior administrators, supporting a collaborative and knowledge-sharing environment.
Participate in long-term strategic planning of military systems infrastructure, incorporating evolving technologies.