Sr Systems Engineer (Linux/Automation)

Leidos isseekinga cleared Senior Systems Engineer to design, deploy, andmaintainsecure Red Hat Enterprise Linux (RHEL) infrastructure within Department of Defense (DoD) and Department of the Navy/Air Force/Army (DoW) networks. This individual will own the automated provisioning pipeline end to end - from bare-metal and virtual machine Kickstart configurations through enterprise-wide configuration management using Ansible and Bash - ensuring systems are deployed consistently, securely, and in compliance with DoD standards., * Automated Provisioning:Develop andmaintainattended/unattended RHEL OS installations using advanced Kickstart configuration files and PXE boot environments.

• Configuration Management:Write andoptimizeidempotent Ansible playbooks, roles, and collections to manage server infrastructure at scale.
• Scripting & Tooling:Build robust Bash automation scripts for custom initialization tasks, local system diagnostics, and integration glue.
• Security & Compliance:Enforce Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) and Risk Management Framework (RMF) standards using automated remediation scripts.
• System Lifecycle Support:Troubleshoot complex OS-level performance issues, manage package/patch lifecycles, and update technical documentation and operational runbooks.

• Education/Experience:BS degree and 8+ years of enterprise Linux system administration and engineering experience. Additional years of experience may be considered in lieu of degree.
• Certifications:DoD 8570/8140 IAT Level II or III certification (e.g., Security+ CE, CISSP).
• Clearance:US Citizen; Currently possessing an Active Top Secret/SCI security clearance.
• Technical Stack:
• Expertproficiencyin Python and Bash shell scripting for system administration.
• Deep hands-on experience with Ansible (Playbooks, Vault, and large-scale inventories).
• Proven capability in designing and troubleshooting automated Kickstart installation profiles.
• Compliance Knowledge:
• Strong familiarity with NIST controls, RMF, and automated STIG validation., * Red Hat Certifications:Red Hat Certified Engineer (RHCE) or Red Hat Certified Specialist in Ansible Automation; Red Hat Certified Architect (RHCA) a plus.
• Enterprise Content Management:Experience administering Red Hat Satellite for patch, content, and subscription lifecycle management across large RHEL fleets.
• Extended Scripting:Working knowledge of Python in addition to Bash for automation and tooling beyond shell-level scripting.
• Containerization:Familiarity with Red Hat OpenShift, Kubernetes, or Docker in DoD/DoWenvironments.
• CI/CD & Version Control:Experience with Git/GitLab and CI/CD pipelines to support infrastructure-as-code workflows.
• Cloud Environments:Exposure to automating RHEL workloads in AWS GovCloud or Azure Government.
• Compliance Automation:Hands-on experience with SCAP Compliance Checker or Evaluate-STIG for automated hardening and assessment.
• Advanced Certification:DoD 8570/8140 IAT Level III (CASP+, CISSP, or GCIH) in lieu of Level II.

Pay and benefits are fundamental to any career decision. That’s why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.