Y-12 National Security Complex · 10 hours ago
Linux System Administrator
Oak Ridge, TN
Full-time
Onsite
Mid, Senior Level
4+ years expY-12 National Security Complex is seeking a highly skilled Senior Red Hat Linux Administrator to manage, optimize, and maintain SAP S/4 and ECC6 systems supporting the national security mission. The role involves installing, managing, upgrading, and maintaining Linux and SAP based infrastructure in a large, distributed network environment while ensuring compliance with security policies and best practices.
ManufacturingProfessional ServicesSecurity
No H1B
Security Clearance RequiredU.S. Citizen OnlyHiring Manager
Ty Johnson
Responsibilities
Managing and administering Red Hat Enterprise Linux and Oracle Solaris systems in support of SAP S/4 and ECC6 environments
Installing, configuring, and maintaining RHEL and Solaris servers, ensuring optimal performance and availability
Supporting SAP S/4 and ECC6 infrastructure and collaborating with SAP Basis and functional teams to ensure seamless operations
Performing system monitoring, performance tuning, and capacity planning
Troubleshooting and resolving issues
Applying system updates, security patches, and manage configuration changes following ITIL standards
Developing and maintaining documentation for systems, processes, and procedures
Implementing and maintaining backup, recovery, and disaster recovery strategies
Ensuring compliance with security policies and best practices
Administering and supporting core Linux and Solaris based technologies
Provide after-hours support for emergencies and occasional weekend maintenance
Qualification
Required
Bachelor's degree in Computer Science, Information Technology, or related field: Minimum 4 years relevant experience
Master's degree: Minimum 2 years relevant experience
Twelve or more years of relevant education, training, and/or progressive experience may be considered to satisfy educational and years-of-experience requirements for this posting
The ability to obtain and maintain a Department of Energy Q clearance is required
Preferred
5 years of experience as a Linux systems administrator, with at least 3 years specializing in SAP S/4 and ECC6 environments
Experience with Red Hat Enterprise Linux (RHEL) administration, server installation, configuration, and maintenance
Experience with Red Hat Satellite
Experience with Oracle Solaris
Experience configuring, running, and maintaining ZFS
Experience with Ansible automation/configuration management
Experience in designing, maintaining, and implementing large scale enterprise business systems and Enterprise Resource Planning (ERP) environments
Demonstrated experience with SAP ERP products and deployment projects
Understanding of installation, setup, and management of SAP R/3 systems in support of the SAP ECC product line including SAP HANA DB
Knowledge of SAP Basis administration
Experience in installation, maintenance, and operations of SAP ERP product suite in multiple environments (Linux, Windows, Solaris)
Strong understanding of the interactions between applications, operating systems, and third-party software
Strong knowledge of networking, storage, and system security principles
Proficiency in scripting languages such as Bash, Python, or Perl for automation and troubleshooting
Solid understanding of security best practices for SAP environments
Excellent problem-solving, communication, and teamwork skills
Hands-on experience with virtualization technologies such as VMWare
Experience with backup and recovery of physical and virtual computing environments
Experience with supporting mission essential systems
Experience with containerization technologies (e.g., Singularity, Docker)
Familiarity with cloud-based solutions and hybrid environments
Benefits
Medical plan
Prescription drug plan
Vision plan
Dental plan
Employer matched 401(k) savings plan
Disability coverage
Education reimbursement
Company
Y-12 National Security Complex
Y-12 National Security Complex is a premier manufacturing facility.
5001-10000 employees
Funding
Current Stage
Late StageLeadership Team
Jill A. Armstrong, CFCM
Program Coordinator, Strategic Partnership Projects
Mandy Parks, SHRM-SCP
Human Resources Business Partner
Recent News
2025-10-01
2025-08-22
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