System Administrator L2

Job Title: System Admin L2
Location: St. Louis, MO
Clearance: TS SCI required

Job Description
The System Administrator II supports Closed Area operations by providing advanced workstation, server, and network support within a secure environment. This role requires hands-on technical skill, strong problem solving ability, and strict adherence to security and operational standards. The L2 technician is responsible for provisioning systems, supporting end users, and ensuring stable, secure computing environments.

Key Responsibilities
Maintain hardware infrastructure within secured network lab environments
Deploy and provision virtual desktops and servers using VMware
Install, configure, and support complex applications with multi component integrations
Peer review installation and configuration documentation for completeness and accuracy
Troubleshoot complex application, OS, and integration issues
Create and maintain Active Directory and Remote Access/VPN user accounts
Deploy, maintain, and troubleshoot mandated secure Group Policy solutions
Interface with customers, vendors, and SMEs to resolve technical issues
Perform system backups and restores
Participate in process development and improvement efforts
Maintain update services for software applications and infrastructure
Recommend hardware architectures and software tools as needed
Support and maintain multiple license server implementations
Support and provide guidance on PKI infrastructure
Deliver end-user support in Closed Areas, including desktops, laptops, and workstations
Perform IMACD activities (install, move, add, change, dispose)
Support dedicated network infrastructure from an operational/maintenance perspective
Install OS updates, software releases, upgrades, and patches using WSUS and SCCM
Provide follow up on outstanding issues and escalations

Minimum Qualifications
Active DoD TS SCI clearance required
CompTIA Security+ CE required
Minimum 3 years of relevant experience integrating, configuring, and troubleshooting a broad range of technologies
Must support both Windows and Linux environments
Windows 10/11
RHEL 8/9


Familiarity with:
Server-based technologies
Unix/Linux and Windows OS
High-performance computing environments
Development, production, and application servers
Windows/Linux desktop systems
Basic network topology concepts

Ability to install and maintain Microsoft Windows 10/11 and RHEL 8/9 OS
Ability to install software releases, upgrades, patches, and resolve hardware/software issues
Experience with Active Directory administration
Experience with basic VMware provisioning (VM creation, resource assignment, templates)
Experience with WSUS and SCCM for patch management
Must have experience with both HP AND Dell hardware
Strong communication and interpersonal skills
Self sufficient, self directed, and capable of working in dynamic environments

Preferred Qualifications
Experience managing assets through network based tools (AV, backup/recovery, vulnerability scanning, GPO, auditing)
Experience with server roles (SQL, Web, Exchange)
Experience writing or editing technical documentation
Basic scripting or automation exposure (PowerShell, Bash, Python)