Systems Administrator; Linux​/Automation Focus

Systems Administrator (Linux / Automation Focus)
** Belong. Connect. Grow. with K !
** K ’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country's most critical role — protecting our national security.
** Why Join Us?**
* ** Innovative Projects:
** K 's work is at the forefront of engineering, logistics, operations, science, program management, mission IT, and cybersecurity solutions.
* ** Collaborative Environment:
** Be part of a dynamic team that thrives on collaboration and innovation, fostering a supportive and intellectually stimulating workplace.
* ** Impactful Work:
** Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of multi-domain operations.  
** Position Overview
** K  is seeking a
** Senior Linux Systems Administrator
** with an emphasis on
** automation and orchestration
** to join our team.

The successful candidate will provide systems administration and infrastructure automation support to the Test Resource Management Center’s (TRMC) All Domain Test Range (ADTR) and INDOPACOM Pacific-Rim Multi-Domain Training and Experimentation Capability Team, Joint Mission Environment Test Capability (JMETC) Secret Network (JSN) Node, JMETC Multiple Independent Levels of Security Network (JMN) Node, Secret Defense Research and Engineering Network (SDREN), and Defense Research and Engineering Network (DREN).You

will design, deploy, and maintain robust Linux-centric server architectures, streamline configuration management using Ansible, and ensure full compliance with DISA STIGs and DoD Risk Management Framework (RMF) standards across distributed test networks.
** Responsibilities**
* ** Linux Engineering & Administration:
** Install, configure, optimize, and maintain enterprise Linux distributions (RHEL, Rocky, CentOS) and associated core services across bare-metal and virtualized environments.
* ** Configuration Management & Automation:
** Develop, test, and maintain reusable Ansible playbooks, roles, and collections to automate baseline provisioning, system hardening, recurring patching cycles, and configuration drift remediation.
* ** Containerization & Orchestration:
** Support containerized environments using Docker, Podman, and Kubernetes, ensuring seamless workload deployment and lifecycle management.
* ** Security & STIG Automation:
** Automate the implementation and audit verification of DISA STIGs across Linux operating systems and application stacks; remediate vulnerability findings identified via ACAS/Nessus.
* ** Lifecycle & Repository Management:
** Manage software repositories, system updates, and image baselines utilizing enterprise tools such as Red Hat Satellite, Foreman, or equivalent local mirrors.
* ** Cross-Platform Infrastructure Support:
** Administer supporting virtualization (VMware vSphere/vCenter), storage systems, networking hardware, and secondary Windows services within a heterogeneous environment.
* ** Compliance & Monitoring:
** Maintain compliance with TRMC cybersecurity directives, RMF continuous monitoring policies, HBSS/Trellix agent deployments, and centralized logging/syslog infrastructure.
* ** Documentation & Operations:
** Author clear Standard Operating Procedures (SOPs), Ansible execution guides, and architecture/network diagrams to facilitate team knowledge transfer.  
** Required Qualifications**
* ** Security Clearance:
** Must have an active
** Top Secret
** clearance.
* *
* Experience:

** Minimum of
** 10 years
** of experience in a Systems Administrator or Systems Engineering role.
* *
* Education:

** Technical Bachelor’s degree (relevant professional experience may be substituted in lieu of a degree).
* ** Linux Proficiency:
** In-depth knowledge of Enterprise Linux (RHEL 7/8/9) system architecture, storage management (LVM), systemd, firewalld, SELinux policies, and Bash/shell scripting.
* ** Automation Tooling:
** Hands-on experience developing, testing, and debugging production
** Ansible playbooks**, inventory structures, and automation workflows.
* ** Virtualization:
** Proven experience administering virtualization platforms, preferably VMware environments (vSphere, vCenter, vDS, NSX).
* ** Physical & Travel Requirements:
** Ability to lift up to 35 lbs; willing to travel up to 20%.
** Desired Qualifications**
* ** Container Platforms:
**…