Secure Linux Engineer for Classified Mission Systems

UT-Battelle; Oak Ridge (TN); On-site; USD 120,000 - 165,000; Full time

Job summary

UT-Battelle's Oak Ridge National Laboratory seeks a Linux Engineer to design, build, and modernize secure Linux infrastructure for classified missions. You will own mission-critical accounts and collaborate with cross-disciplinary teams, operating under Top-Secret clearance with Q and SCI eligibility.

This role focuses on advanced Linux engineering, automation, RMF/NIST compliance, and integration with AD/LDAP, virtualization, and monitoring tools, delivering scalable, resilient solutions for

Qualifications

• BS degree in a related technical field.
• Current Top-Secret clearance with Q and SCI eligibility.
• Strong Linux engineering, troubleshooting, automation, scripting.

Responsibilities

• Engineer and modernize secure Linux infrastructure supporting classified environments, primarily using RHEL and related distributions.
• Design, build, configure, optimize, and sustain Linux platforms across multiple security domains.
• Develop automation using Ansible, Python, Bash, and Git-based workflows to improve deployment, configuration, patching, compliance, reliability, and efficiency.
• Implement cybersecurity requirements including RMF, NIST 800-53, STIGs, and ICD 503, including system hardening and monitoring.
• Integrate Linux with enterprise identity, virtualization, storage, backup, and monitoring capabilities (AD/LDAP/Kerberos, PKI, VMware, KVM).
• Troubleshoot complex issues and partner with cybersecurity, networking, storage, and mission teams to develop secure, scalable solutions.
• Evaluate and introduce new technologies and approaches for modernization and capabilities.
• Support mission-critical operations, planned maintenance, and occasional after-hours work.

Skills

Linux engineering

Automation scripting

Troubleshooting

Identity integration

Security compliance

Education

BS degree in a related technical field

Tools

Ansible

Python

Bash

VMware

KVM

RHEL

Job description

UT-Battelle's Oak Ridge National Laboratory seeks a Linux Engineer to design, build, and modernize secure Linux infrastructure for classified missions. You will own mission-critical accounts and collaborate with cross-disciplinary teams, operating under Top-Secret clearance with Q and SCI eligibility.

This role focuses on advanced Linux engineering, automation, RMF/NIST compliance, and integration with AD/LDAP, virtualization, and monitoring tools, delivering scalable, resilient solutions for