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# Linux Systems Administrator

- **Company:** cb5 Solutions, LLC
- **Location:** Colorado Springs, CO, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Secure Shell (SSH), Microsoft Windows, Active Directory, User Authentication, Bash Shell, Configuration Management, Cyber Security, Computer Networks, System Configuration, Data Transmissions, Data Security, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Monitoring of Systems, Identity and Access Management, Lightweight Directory Access Protocols (LDAP), Linux System Administration, Logical Volume Manager, System Center Configuration Manager, Windows Servers, Network Time Protocols, OpenShift, Public Key Infrastructure, Windows PowerShell, Red Hat Enterprise Linux, Ansible, RSA (Cryptosystem), System Software, Systems Integration, Virtualization Technology, VMware VSphere, Scripting, Data Storage Management, Containerization, Infrastructure Automation Frameworks, Information Technology, Network Server, Wsus
- **Published:** August 22, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9099878/linux-systems-administrator

## About the Role

· Be able to create and follow standard processes and clearly document results.

· Effectively function as a self-starter and identify risks, issues, and opportunities to the System Administration team.

· Have excellent presentation, oral, and written skills to facilitate effective and efficient interchanges with senior customer management and customers.

· Have a "can-do" attitude, be able to work in a very high-pace and dynamic environment and embrace change.

Qualifications

· Must have 3, or more, years of directly related experience in Linux systems administration (e.g., Red Hat Enterprise Linux 7, 8, or 9 environments).

· Must have experience with Linux configuration management, automated provisioning, and patching (e.g., Red Hat Satellite, Ansible).

· Must have experience administering Linux operating systems within a virtualized environment (such as VMware vSphere/vCenter).

· Must have experience developing and executing Bash and/or Python scripts.

· Must have experience managing Linux authentication, identity management, and directory services (e.g., IdM, LDAP, SSSD, Active Directory integration).

· Must have experience configuring core Linux networking services (DNS, DHCP, NTP, SSH) and storage management (LVM, NFS).

· Must have a current DoD 8570/8140 IAT Level II certification or higher (CCNA-Security, CySA+, GICSP, GSEC, Security+, CND, or SSCP).

· Must have an active DoW Secret Security Clearance

· Must be able to obtain an active DoW Top Secret Security Clearance

Preferred Qualifications

· Have a current Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification

· Have experience with Windows systems administration (Windows Server 2019/2022 and Windows 10/11) and Active Directory.

· Have experience with Windows-based deployment and patching tools (WSUS, SCCM) and Group Policy Objects (GPOs).

· Have work experience with PowerShell Scripting.

· Have experience with managing CA certificate servers.

· Have experience managing PXE/Kickstart servers for automated OS deployments.

· Have experience with 2FA to include RSA and PKI.

· Have experience with Virtualization of services (VMware vSphere/vCenter).

· Have experience using BMC Remedy or similar ITSM ticketing systems.

· Have a working knowledge of Configuration Management processes.

## Description

At cb5, we are on a mission to find exceptional talent. Our tight-knit organization is led by five brothers, each technology leaders in their respective technical fields and driven to foster a culture of excellence through solidarity. We are seeking a Mid-Level Linux System Administrator to serve as a member of Systems Integration team. This role is onsite at a government location in Huntsville, AL and has very limited travel requirements., The candidate will:

· Administer the operations of computer systems with a primary focus on Linux operating systems, servers, and end-user workstations.

· Administer Linux patching and configuration management tools (e.g., Red Hat Satellite, Ansible) for updating, patching, and maintaining the domain.

· Perform hardening and remediation of operating systems and DISA STIG compliance to reduce cybersecurity risks.

· Deploy, configure, and automate environments using vCenter, Bash/Python scripting, and Ansible.

· Administer Container Platforms such as OpenShift, as well as maintain repositories/Registries.

· Manage and sustain a primarily Linux workstation and server-based enterprise environment.

· Maintain and manage Secure Host Baselines for LINUX (primarily) and Windows.

· Coordinate, execute, and document authorized secure data transfers across network boundaries, serving as a designated Data Transfer Agent (OTA) in compliance with security protocols.

· Conduct daily system monitoring, system backup and restoration, and application upgrades to ensure optimal and continuous system operations.

· Develop and maintain system administration procedures and baseline configuration documentation.

· Be responsible for ensuring system software installs, maintenance, break/fix activities, and cyber security mitigations are performed in accordance with established policies, procedures, and service level agreements.

· Focus on creating, upgrading, managing, and sustaining physical and virtual workstations and servers.

· Be able to quickly learn challenging concepts, decompose difficult service problems, and provide resolution.


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