OneMain Financial Jobs

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