System Admin L2

Job Requirements Saint Louis, MO Top Secret/SCI Polygraph not specified Career Level not specified Salary not specified Join Premium to unlock estimated salaries Job Description 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) group id: 10529568 N Name Hidden Technical Recruiter Apply now