Mid-Level Linux System Administrator IRES - HSV

Amentum•Huntsville, AL

1d•$95,000 - $135,000•Onsite

About The Position

The Mid-Level Linux System Administrator supports the Missile Defense Agency (MDA) on the Integrated Research and Development for Enterprise Solutions (IRES) contract. The candidate will administer the operations of computer systems with a primary focus on Linux operating systems, servers, and end-user workstations. This includes administering Linux patching and configuration management tools, performing hardening and remediation of operating systems for DISA STIG compliance, and deploying, configuring, and automating environments using vCenter, Bash/Python scripting, and Ansible. The role also involves administering Container Platforms like OpenShift, maintaining repositories/Registries, and managing a primarily Linux workstation and server-based enterprise environment. Responsibilities include maintaining Secure Host Baselines for LINUX and Windows, coordinating secure data transfers as a Data Transfer Agent (DTA), conducting daily system monitoring, backups, restoration, and application upgrades. The candidate will also develop and maintain system administration procedures and documentation, and focus on creating, upgrading, managing, and sustaining physical and virtual workstations and servers. The successful candidate must be able to quickly learn challenging concepts, decompose difficult service problems, provide resolution, create and follow standard processes, document results clearly, function as a self-starter, identify risks and opportunities, and possess excellent presentation, oral, and written skills. A "can-do" attitude, ability to work in a fast-paced and dynamic environment, and embrace change are also essential.

Requirements

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

Nice To Haves

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.

Responsibilities

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 (DTA) 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.
Ensure 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.