System Admin L2

System Administrator II (L2)


Duration: 12 months (expected)


Location: On-site 5 days/week (St. Louis, MO)

Overview

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 expertise, 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 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 and 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 SCI clearance required prior to start
• CompTIA Security+ CE required prior to start
• Minimum 3+ years of relevant experience integrating, configuring, and troubleshooting a broad range of technologies
• Experience supporting both Windows and Linux environments

Operating Systems:
• Windows 10/11
• RHEL 8/9

Familiarity With:
• Server-based technologies
• Unix/Linux and Windows operating systems
• High-performance computing environments
• Development, production, and application servers
• Desktop systems (Windows/Linux)
• Basic network topology concepts

Technical Requirements:
• Ability to install and maintain Windows 10/11 and RHEL 8/9
• Ability to install software releases, upgrades, patches, and resolve hardware/software issues
• Experience with Active Directory administration
• Experience with VMware provisioning (VM creation, resource assignment, templates)
• Experience with WSUS and SCCM for patch management
• Experience with both HP and Dell hardware

Additional:
• Strong communication and interpersonal skills
• Self-sufficient and able to work 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)