High-Performance Computing (HPC) Administrator

About the role:

We are seeking a highly skilled High-Performance Computing (HPC)

Administrator to design, deploy, maintain, and optimize large-scale compute

clusters which could be used for advanced scientific, engineering and AI workloads.

You will be responsible for managing high-density compute nodes, InfiniBand

interconnects, job scheduling environments, ensuring high availability, scalability,

and efficiency across the cluster ecosystem.

Key Responsibilities

Linux Skills

• Familiarity with one, or more, shell environments (BASH, sh, tcsh, ksh, etc.)

• Experience administering Linux (boot process, file systems, kernel modules)

• Familiarity with core OS services such as: SSH, telnet, FTP, NFS, DNS,

DHCP, Samba, LDAP

• Familiarity with networking tools (ping, tracert, tracemon, tcpdump, etc.)

• Understanding of the OSI model and related concepts

Cluster Administration

• Install, configure, and maintain Linux-based compute and login nodes.

• Manage workload schedulers (e.g., Slurm, PBS Pro) and optimize job

throughput and queue performance.

• Oversee software provisioning, OS image deployment, and firmware updates

across thousands of nodes.

• Manage HPC management frameworks such as HPE Performance Cluster

Manager (HPCM), Bright Cluster Manager, or equivalent.

Networking & Interconnect

• Monitor and tune high-speed fabrics such as InfiniBand (HDR/NDR)

including subnet managers (UFM, OpenSM) and link diagnostics.

• Need to ensure low latency, congestion-free data paths across compute and

storage.

Monitoring & Automation

• Implement comprehensive cluster monitoring using tools like Grafana,

Prometheus, Nagios or Opsramp.

• Develop automation and orchestration scripts (Bash, Python, Ansible) for

provisioning, health checks, and performance tuning.

• Proactively identify performance bottlenecks and propose corrective actions.

Security & Compliance

• Maintain secure authentication, role-based access, and audit controls across

nodes.

• Apply patches, enforce configuration management, and ensure compliance

with organizational IT policies.

Qualifications

Essential:

• Bachelors degree in Computer Science, Engineering or a related technical

field.

• Strong experience in Linux systems administration (RHEL/SLES/Ubuntu)

in an HPC or data center environment.

• Minimum 5 years of experience in HPC administration is valuable.

• Hands-on expertise with Slurm, PBS Pro job schedulers.

• Familiarity with InfiniBand networking

• Proficiency in scripting (Bash, Python, or Ansible) and version control (Git).

• Good knowledge about the HPE Proliant Gen 10 or Gen11 servers is

preferable.

Desirable:

• Experience with containerized HPC (Singularity/Apptainer/Docker) and

Kubernetes integration.

• Basic understanding of VMware is good.

• Familiarity with Lustre/GPFS filesystems,

• Certifications like RHCSA/RHCE, or CKA or vendor-specific HPC

administration credentials.