# Senior Systems Administrator / Senior Linux Automation Engineer > Node.Digital · Pensacola, United States · Full-time · Posted 2026-04-14 **Workplace:** on_site **Department:** RTX-DOM ## Description Senior Systems Administrator / Senior Linux Automation Engineer Location: Pensacola, FL Must have an active Secret Clearance /Top Secret clearance Node.Digital supports a U.S. Government customer on a mission critical program to design, build, deliver, and operate a next generation network operations environment. As part of CISA IT’s broader consolidation and modernization vision, this role contributes directly to the establishment of a centralized patching core team—a strategic initiative to standardize, streamline, and fortify patch management across multi cloud Linux environments. We are seeking a Senior Linux Automation Engineer with strong automation, DevOps, and cloud integration experience to help shape and execute this forward leaning effort. This position plays a key role in enhancing cybersecurity posture, improving operational efficiency, and driving consistent, proactive patching practices across DOMino CISA IT systems. Job Responsibilities: • Standardize patch processes across CISA environments • Prioritize critical updates aligned with CISA IT cybersecurity objectives • Integrate automation and intelligent systems to reduce manual effort • Strengthen collaboration between DOMino teams, government sponsors, and tenants • Improve transparency, metrics, and operational agility • leverage deep technical expertise to automate patch deployment and optimize system performance • support multi‑cloud environments while contributing to the development of enterprise‑wide patching standards and best practices • Engineer and maintain Linux system architectures (primarily RHEL 8/9/10 • Perform OS security hardening, patching, and lifecycle maintenance • Manage backup, recovery, and configuration documentation to ensure system integrity • Engineer the design and implementation of standardized patching methodologies across AWS, AZURE, Google Cloud environments • Automate patch identification and deployment using tools such as Ansible and other IaC frameworks • Prioritize and execute critical updates in alignment with CISA IT Patch Management Guidelines • Assist in baseline assessments to identify process gaps, inefficiencies, and automation opportunities • Participate in efforts to refine patching workflows, metrics, and operational processes. • Integrate AWS, AZURE and Google native services to enhance performance, resilience, and scalability of patching and DevOps infrastructure • Evaluate and implement AI capabilities to automate patch management processes • Contribute to enterprise cloud and DevOps standards, guidelines, and best practices • Serve as a central conduit between DOMino teams, government sponsors, and tenants during patching cycles • Establish and track metrics such as patch compliance, deployment timelines, and automation achievements • Participate in weekly/bi‑weekly reviews to ensure alignment with evolving operational priorities • Support iterative improvements based on stakeholder feedback and operational data. ## Requirements Required Skills: • Must be a US Citizen • Must have an active Secret clearance and be able to obtain a TS/SCI clearance • Must be able to obtain DHS Suitability • 6+ years of Linux systems engineering experience (RHEL 8/9/10 preferred • Strong background in Linux Engineering and Automation • Experience with performance tuning and troubleshooting across compute, network, and storage layers • Hands‑on experience with Red Hat Satellite, Ansible, or similar configuration management tools. Desired Skills: • Experience with Infrastructure as Code (Ansible Automation Platform • Experience in development environments • Experience with SELinux, multilevel security systems, or Cross Domain Solutions • AWS, AZURE, Google experience, including understanding of the Well‑Architected Framework; AWS, AZURE or Google Cloud certification preferred Required Education:  • Bachelor’s degree in systems engineering, Computer Science, Information Systems or related technical field.   Two years of related work experience may be substituted for each year of degree level education. Desired Certifications: • DoD 8570.1 IAT Level II • Red Hat Certified Engineer (RHCE) • Managing Automation with Ansible Automation Platform ## Benefits We are proud to offer competitive compensation and benefits packages to include - Medical  - Dental - Vision - Basic Life  - Health Saving Account - 401K matching - Three weeks of PTO/Sick - 11 Paid Holidays - Pre-Approved Online Training ## Apply [Apply at Node.Digital](https://apply.workable.com/node/j/229E3739A3/apply) --- Powered by [Workable](https://www.workable.com)