Senior Linux Cluster System Administrator - Top Secret clearance
About The Position
PGTEK is seeking a Senior Linux Cluster System Administrator to provide hands-on technical support and system administration for a large-scale Linux cluster environment supporting a mission-critical customer at Stennis Space Center. This role will focus on maintaining system health, security, operational continuity, and overall performance of a complex Linux environment. The successful candidate will serve as a trusted technical advisor to the customer, work independently to troubleshoot complex issues, and provide knowledge transfer to customer system administrators. The environment is based around an HPC solution, and training on the specific HPC system tools will be provided.
Requirements
- Active Top Secret (TS) security clearance.
- 10+ years of professional Linux system administration experience.
- Demonstrated experience supporting large-scale or clustered Linux environments.
- Strong troubleshooting skills with the ability to independently diagnose and resolve complex Linux system issues.
- Ability to work independently in a highly technical and complex environment.
- Strong communication and customer-facing skills.
- CompTIA Security+
- CompTIA Linux+
Nice To Haves
- Experience administering large-scale Linux server fleets, preferably 100+ nodes.
- Experience with distributed job scheduling or orchestration platforms such as Slurm, PBS, Kubernetes, or similar technologies.
- Experience working in High Performance Computing (HPC) environments.
- Experience with parallel or distributed filesystems such as Lustre, GPFS, Ceph, or similar technologies.
- Familiarity with clustered computing environments and enterprise-scale Linux infrastructure.
Responsibilities
- Perform general system administration for a large-scale Linux cluster environment.
- Monitor and maintain overall system health and operational continuity.
- Troubleshoot and resolve complex Linux system issues.
- Respond to customer requests and provide timely technical support.
- Plan, coordinate, and execute system upgrades.
- Identify and mitigate security vulnerabilities.
- Maintain the security posture of systems operating on the customer network.
- Provide knowledge transfer and technical guidance to customer system administrators.
- Build and maintain strong customer relationships while serving as a trusted technical advisor.
- Stay current with emerging technologies, industry trends, and relevant technical domains.
- Independently develop and apply methods, techniques, and criteria to solve highly complex technical problems.
Benefits
- Comprehensive PPO medical coverage with access to a Health Savings Account (HSA) option
- Vision plan
- Dental insurance with the base dental plan option paid for by PGTEK
- Life Insurance
- Short and Long-Term disability
- Critical Illness insurance
- Matching 401(k) plan
- Discount on pet insurance through ASPCA Pet Insurance
- Employee Assistance Program
- Generous amount of PTO and Holidays
- Education Assistance Program is available after 12 months of employment
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
