Secure Linux Systems Admin – On‑Site DOE/NNSA Ops

Talentify; Oak Ridge (TN); On-site; USD 70,000 - 103,000; Full time

Benefits offered by this job

Competitive salary

Flexible schedules

Certification support

Cross-functional teamwork

DOE/NNSA project work

Continuous learning

Job summary

BWX Technologies, Inc. in Oak Ridge, TN, is seeking an experienced Linux Systems Administrator to support secure, high-availability computing environments across engineering, manufacturing, simulation, and analytics operations.

The role focuses on maintaining Linux-based systems, storage, automation, and cybersecurity compliance within a DOE/NNSA high-security setting, with collaboration across engineering, IT, operations, and security teams.

Qualifications

• Bachelor’s degree in Computer Science, IT, Cybersecurity, Engineering, or related field (or equivalent).
• Minimum 3+ years of experience administering Linux systems in production environments.
• Proficiency with Linux administration, shell scripting, networking fundamentals, and system monitoring.
• Experience with automation tools (Ansible, Bash, Python) and system-hardening practices.
• Knowledge of virtualization or container technologies.
• Experience maintaining secure environments and applying compliance frameworks.
• Strong troubleshooting and documentation skills.
• Must be a U.S. citizen with ability to obtain and maintain a DOE Q clearance.
• Must be able to obtain and maintain a DOE security clearance.

Responsibilities

• Install, configure, harden, and maintain Linux systems (RHEL, Rocky, Ubuntu, or similar).
• Manage authentication services, user/group permissions, identity controls, and privileged access workflows.
• Implement secure configurations aligned with DOE/NNSA cybersecurity requirements.
• Administer storage environments, NFS/SMB shares, file systems, backups, and disaster recovery procedures.
• Monitor system performance, troubleshoot infrastructure issues, and optimize compute environments.
• Develop scripts and automation using Bash, Python, or Ansible.
• Manage patching, update cycles, OS lifecycle management, and package repositories.
• Support virtualization or container tooling (VMware, KVM, Docker/Podman).
• Work with cybersecurity teams to conduct audits and resolve findings.
• Provide technical support for engineering workloads, simulation tools, HPC environments, or manufacturing systems.
• Maintain secure documentation including system configurations, runbooks, diagrams, and compliance records.
• Assist in rollout of new servers, upgrades, and modernization initiatives.
• Collaborate with cross-functional teams.

Skills

Linux administration

Shell scripting

Networking fundamentals

System monitoring

Automation (Ansible, Bash, Python)

Virtualization or container tech

Security/compliance

Documentation

Education

Bachelor’s degree in CS/IT/Engineering or related

Tools

Ansible

Bash

Python

VMware/KVM/Docker/Podman

Job description

BWX Technologies, Inc. in Oak Ridge, TN, is seeking an experienced Linux Systems Administrator to support secure, high-availability computing environments across engineering, manufacturing, simulation, and analytics operations.

The role focuses on maintaining Linux-based systems, storage, automation, and cybersecurity compliance within a DOE/NNSA high-security setting, with collaboration across engineering, IT, operations, and security teams.