System Administrator, Level 2

Independent Software•Columbia, MD

About The Position

As a System Administrator Level 2 at Independent Software, you will provide support for the implementation, troubleshooting, and maintenance of mission-critical Information Technology (IT) systems supporting national defense and intelligence operations. You will support day-to-day IT operations across client/server systems, storage, network infrastructure, and enterprise platforms while ensuring system reliability, integrity, and compliance. In this role, you will provide Tier 1 (Help Desk) and Tier 2 (Escalation) support, assisting with system monitoring, troubleshooting, patching, automation, and operational support activities across Linux and Windows environments. You will work alongside engineering and operations teams to maintain secure and resilient enterprise systems while supporting users and mission stakeholders.

Requirements

Strong knowledge of Linux system administration, particularly RHEL/CentOS environments
Experience supporting Windows and UNIX/Linux operating systems in enterprise environments
Experience supporting virtual machines, storage infrastructure, system monitoring, and performance tuning
Familiarity with shell scripting, Ansible, Git, automated patching, and configuration management
Experience reviewing vulnerability reports and implementing remediation/compliance solutions
Familiarity with Nessus, UAM, Trellis, Biscotti, LatteArt, and related STE toolsets
Strong troubleshooting, diagnostic, and problem-resolution skills
Ability to communicate technical issues effectively to management, users, and support teams
Experience documenting technical procedures, workflows, and operational support activities
Bachelor’s degree in a technical discipline from an accredited college or university plus eight (8) years of systems administration experience
In lieu of a degree, four (4) additional years of systems administration experience may be substituted
DoD 8570 IAT Level I or higher (e.g., Security+ CE) is required
Must possess an active TS SCI with appropriate Polygraph to be considered for this role

Responsibilities

Provide Tier 1 and Tier 2 support for troubleshooting, maintenance, and operational support of IT systems and infrastructure
Support day-to-day operations, monitoring, and problem resolution for client/server, storage, network, and virtualized environments
Configure, administer, and maintain Linux (CentOS/RHEL) and Windows operating systems
Install, load, troubleshoot, and maintain operating system software and system enhancements to improve reliability and performance
Perform system patching, vulnerability remediation, and support compliance activities including IAVA reporting
Support infrastructure monitoring and cyber hygiene activities using tools such as Nessus, SecurityCenter, UAM, Trellis, and related STE toolsets
Write and maintain shell scripts and Ansible playbooks to support automation, configuration management, and operational efficiency
Support PKI-related activities including certificate installation, renewal, and maintenance
Build, configure, maintain, and troubleshoot virtual machines and enterprise infrastructure components
Support Git repositories, configuration tracking, and system documentation efforts including SOPs and Confluence updates
Provide support for dispatch systems, hardware troubleshooting, escalation activities, and communication with agency stakeholders and internal customers
Troubleshoot network components and support operating system enhancements to improve system performance and reliability