Network Engineer (HPC)

Fujitsu Asia Pte Ltd; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading technology firm in Singapore is seeking an experienced Network Engineer to design, deploy, and optimize network infrastructures supporting HPC and AI workloads. The role is critical for ensuring high bandwidth and low latency for large-scale compute clusters. Candidates should have over 5 years of experience in data centre environments, strong analytical skills, and hands-on experience with high-performance networking technologies. This position emphasizes collaboration with system engineers and storage teams for reliable network services.

Qualifications

• 5+ years’ experience as a Network Engineer in data centre or HPC environments.
• Proven experience supporting mission-critical, production environments.
• Certifications: CCNP/CCIE is preferred or equivalent vendor certifications.

Responsibilities

• Operate high-speed network fabrics for HPC and AI clusters.
• Diagnose and resolve network performance issues.
• Provide production support for HPC network environments.

Skills

High-performance networking technologies

Analytical and problem-solving skills

Scripting and automation

Self-motivated with a strong sense of ownership

Education

Bachelor’s degree in computer science, Engineering, or related field

Tools

InfiniBand

Networking technologies

Job description

We are seeking an experienced Network Engineer to design, deploy, operate, and optimize network infrastructure supporting HPC, AI, and data-intensive workloads. This role is critical to ensuring low-latency, high-bandwidth, and highly available networking for large‑scale compute clusters used by research, engineering, and enterprise workloads.

The successful candidate will work closely with HPC system engineers, storage teams, and application specialists to deliver reliable and scalable network services for mission‑critical environments.

Responsibilities

• Operate high-speed network fabrics for HPC and AI clusters.
• Support low-latency, high‑throughput networking for distributed workloads.
• Ensure optimal network performance for MPI, GPU‑accelerated, and data-intensive applications.

Network Technologies & Platforms

• Deploy and manage:
  • InfiniBand (HDR / NDR), RoCE, and high-performance Ethernet
  • Leaf‑spine architectures
  • Data center switching and routing platforms
• Configure and maintain RDMA‑enabled networks and QoS policies.

Performance Optimization & Troubleshooting

• Diagnose and resolve network performance, latency, packet loss, and congestion issues.
• Analyze traffic patterns and optimize network paths for HPC workloads.
• Support performance tuning in collaboration with system and application teams.

Operations & Service Delivery

• Provide production support for HPC network environments, including incident and escalation handling.
• Participate in change, patch, and upgrade activities with minimal service disruption.
• Develop and maintain network documentation, diagrams, and operational runbooks.

Automation & Continuous Improvement

• Automate network configuration and validation using scripting and automation tools.
• Contribute to standardization, best practices, and continuous improvement initiatives.
• Support capacity planning and future network expansion.

Security & Compliance

• Implement network security controls aligned with organizational policies.
• Support segmentation, access controls, and monitoring for HPC environments.
• Collaborate with security teams on audits and compliance requirements.

Requirements

• Bachelor’s degree in computer science, Engineering, or a related field
• 5+ years’ experience as a Network Engineer in data centre or HPC environments
• Strong hands‑on experience with high-performance networking technologies
• Proven experience supporting mission‑critical, production environments
• Strong analytical and problem-solving skills
• Self‑motivated with a strong sense of ownership
• Certifications: CCNP/CCIE is preferred or equivalent vendor certifications

*Only shortlisted candidates will be notified.