Linux System Administrator

Location: Oak Ridge, TN

Job Title: Linux System Administrator

Career Level From: Specialist

Career Level To: Senior Specialist

Organization: Y-12 IT Infrastructure (51130472)

Job Specialty: System Administration

What You'll Do

We are seeking a highly skilled Senior Red Hat Linux Administrator to manage, optimize, and maintain systems supporting the national security mission to maintain the safety, security, and effectiveness of the United States nuclear weapons stockpile. Working as part of the IT organization's IT Infrastructure team, the Linux System Administrator position offers you the ability to install, manage, upgrade, and maintain existing Linux, and Solaris based infrastructure in a large, distributed network environment. This role requires a proactive individual capable of supporting mission-critical computing environments while collaborating with multidisciplinary teams.

You will also be responsible for:

• Managing and administering Red Hat Enterprise Linux and Oracle Solaris systems in support of production environments.
• Installing, configuring, and maintaining RHEL and Solaris servers, ensuring optimal performance and availability.
• Supporting various infrastructure teams 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
  

What You Can Expect

• Meaningful work and unique opportunities to support missions vital to national and global security
• Top-notch, dedicated colleagues
• Generous pay and benefits with a stable organization
• Career advancement and professional development programs
• Work-life balance fostered through flexible work options and wellness initiatives

Minimum Job Requirements

• 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 Job Requirements

• 5 years of experience as a Linux systems administrator, with at least a Red Hat Certified System Administrator.
• Experience with Red Hat Enterprise Linux (RHEL) administration, server installation, configuration, and maintenance.
• Red Hat Certified Engineer
• Experience with Red Hat Satellite
• Experience with Oracle Solaris
• Experience with Ansible automation/configuration management
• Experience configuring, running, and maintaining ZFS
• 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 Linux 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.
  

Why Y-12?
You get #morethanajob. We encourage employees to achieve a healthy personal balance among home, work and the community. One of the ways we embrace work-life balance is by offering flexible work arrangements that provide alternatives to the traditional workweek, while still meeting business needs. Top talent and personal commitment mean more to our success than any other factors, so we reward our people with the kinds of benefits that make a positive difference in the quality of their lives. Benefits such as: medical plan, prescription drug plan, vision plan, dental plan, employer matched 401(k) savings plan, disability coverage, education reimbursement and many more. Want to stay healthy and fit but hate the cost of a gym membership? Take advantage of one of our onsite workout facilities and eat healthy in our onsite cafeterias. Much more than a workplace, at Y-12, you can build a career that lasts a lifetime. Notes
The minimum education and experience for the lowest career level in the job posting range are listed under Minimum Job Requirements. Successful candidates hired into a higher career level than the minimum in the range must meet the requirements listed in the job leveling charts for the career level into which they are being hired.
If a range of Career Levels is posted, i.e., Senior Associate to Senior Specialist, internal applicants already in one of the Career Levels would come across at their current Career Level. Internal applicants currently in a lower level Career Level would move to the lowest posted Career Level.

Requires a Q clearance; however all qualified candidates will be considered regardless of their current clearance status. The ability to obtain and maintain a Department of Energy Q clearance is required.
This position may require entry into the Material Access Areas (MAA) and participation in the Human Reliability Program (10 C.F.R. Part 712), which requires successful competition of a DOE counterintelligence evaluation and may include a counterintelligence-scope polygraph examination.
This position may be categorized as a "designated position" identified by 10 C.F.R. Part 709, requiring successful completion of a DOE counterintelligence evaluation that may include a counterintelligence-scope polygraph examination.

CNS is a drug-free workplace. Candidates accepting a job offer will be required to pass a pre-placement physical, drug screening and background investigation. As an employee, you may be required to receive and maintain a security clearance from the United States Department of Energy in order to meet eligibility requirements for access to sensitive information or matter. U.S. citizenship is a requirement for security clearance applicants. All employees are subject to being randomly selected for drug testing without advance notification.

CNS is an equal opportunity employer. All qualified applicants will receive consideration for employment based on merit and without regard to race, color, religion, sex, sexual orientation, national origin, protected veteran status or disability.

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