HPC System Administrator (Top Secret)

About the role

RedLine Performance Solutions (RedLine) has been in the High Performance Computing (HPC) solutions engineering services business for over 26 years and is consistently determined to keep the "bar of excellence" quite high for new hires. This enables RedLine to accomplish what other firms cannot and promotes a high level of staff retention. RedLine provides IT infrastructure management and technical support services to some of the world's largest supercomputing sites. The HPC System Administrator will provide operational support for HPC clusters located in Dayton, OH. Operations run 24x7 and therefore there will be a rotational on‑call requirement. The administrator will engage with the customer and participate in the evolution and maintenance of the technical infrastructure in addition to operationally supporting the on‑site HPC environment. The administrator will be responsible for relaying these insights to the RedLine Program Manager and working together to translate customer needs into actionable project tasks. The position is at the customer site. The administrator functions as the lead point of contact for day‑to‑day operations and real‑time problem resolution. As such, remote work is not viable for this role.

Responsibilities

• Provide operational support for HPC clusters located in Dayton, OH.
• Engage with the customer and participate in the evolution and maintenance of the technical infrastructure.
• Operationally support the on‑site HPC environment.
• Relay insights to the RedLine Program Manager and work together to translate customer needs into actionable project tasks.
• Function as the lead point of contact for day‑to‑day operations and real‑time problem resolution.
• Participate in rotational on‑call coverage due to 24x7 operations.

Requirements

• Active DoD Top Secret security clearance.
• Relevant technical certifications (e.g., Linux+, Security+).
• Full‑time (W‑2) employment status.

Skills

Required skills:

• 7 or more years of Linux systems administration, preferably in a Red Hat and/or Rocky environment.
• Strong knowledge of TCP/IP networking.
• 5 or more years of HPC cluster system administration experience, preferably with Dell clusters.
• Strong experience in Bash, Perl, and Python scripting in a version‑controlled environment using Git.
• Experience with job scheduling software (e.g., Slurm, PBS).
• Experience with cluster automation tools (e.g., xCAT, HPCM, Bright Cluster Manager).
• Experience with parallel filesystems (e.g., Lustre).
• Experience with high‑speed interconnects (e.g., InfiniBand).
• Strong verbal and written communication skills, with the ability to coordinate between multiple team members in remote locations across several disparate projects.
• Strong organizational skills.

Preferred skills/experience:

• Experienced with system engineering in addition to system administration.
• Red Hat Certification (e.g., RHCSA, RHCE).
• Server automation experience (e.g., Puppet, Foreman, Ansible).
• Experience with MPI technologies.
• Experience with Warewulf cluster management and provisioning.
• Experience with Weka parallel file systems.
• Optimization experience with GPU‑based HPC clusters.

Benefits

• Paid time off.
• 401k match.
• Health care benefits.

Schedule

Operations run 24x7 with a rotational on‑call requirement.