System Administrator - HPC Managed Services

PTC SYSTEM (S) PTE LTD; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

PTC SYSTEM (S) PTE LTD in Singapore is seeking a System Administrator for HPC Managed Services to ensure reliable operation, secure configuration, and high-performance job execution across login nodes and compute clusters.

The role covers OS lifecycle, CM tooling, monitoring, incident response, and 24x7 on-call rotations, with emphasis on ITIL processes and collaboration with cross-functional teams.

Qualifications

• 3+ years of experience in HPC, system administration, or infrastructure operations.
• Hands-on experience with Linux-based operating systems (preferably Red Hat Enterprise Linux).
• Strong background in cluster management, job scheduling, and resource monitoring tools.
• Proficiency in scripting (Bash, Python, or similar) for automation and maintenance tasks.
• Familiarity with configuration management tools (e.g., Ansible, Puppet, Chef).
• Excellent problem-solving, communication, and teamwork skills.

Responsibilities

• Manage the full OS lifecycle, including installation, configuration, patching, and upgrades for HPC systems.
• Support and maintain configuration management processes and automation frameworks.
• Provide operational monitoring, troubleshooting, and performance tuning across login nodes, compute nodes, and HCI.
• Collaborate with internal and external teams to handle incidents and resolve system-level issues promptly.
• Participate in the 24×7 on-call rotation to support critical incident escalations.
• Ensure compliance with operational standards, documentation practices, and ITIL processes.

Skills

Linux

HPC management

Scripting (Bash/Python)

Configuration management

Incident troubleshooting

On-call support

Tools

Ansible

Puppet

Chef

Job description

Role Overview

We are seeking a skilled and motivated System Administrator to join our High-Performance Computing (HPC) Managed Services team. The successful candidate will be responsible for day-to-day operations, system maintenance, and lifecycle management of HPC environments, ensuring reliability, performance, and seamless service delivery for our users.

Key Responsibilities

• Manage the full OS lifecycle, including installation, configuration, patching, and upgrades for HPC systems.
• Support and maintain configuration management (CM) processes and automation frameworks.
• Provide operational monitoring, troubleshooting, and performance tuning across login nodes, compute nodes, and hyperconverged infrastructure (HCI).
• Collaborate with internal and external teams to handle incidents and resolve system-level issues promptly.
• Participate in the 24×7 on-call rotation to support critical (P1/P2) incident escalations.
• Ensure compliance with operational standards, documentation practices, and ITIL processes.

Requirements

• At least three (3) years of relevant experience in HPC, system administration, or infrastructure operations.
• Hands-on experience with Linux-based operating systems (preferably Red Hat Enterprise Linux).
• Strong technical background in cluster management, job scheduling, and resource monitoring tools.
• Proficiency in scripting (Bash, Python, or similar) for automation and maintenance tasks.
• Familiarity with configuration management tools (e.g., Ansible, Puppet, Chef).
• Excellent problem-solving, communication, and teamwork skills.

Minimum Certification Requirements

• ITIL Foundation (or equivalent or higher).
• Red Hat Certified System Administrator (RHCSA) or equivalent or higher certification.