Senior Network Engineer

Role Summary

Firmus Technologies is seeking a skilled Network Engineer / Senior Network Engineer to join our

Engineering and Technology team. The ideal candidate will play a crucial role in leading the

development of our network designs and supporting the network deployment for AI infrastructure

projects. This role offers an exciting opportunity to work at the forefront of AI networking technology

and contribute to the growth of AI infrastructure.

Key Responsibilities

Design, Implement and Maintain Network Infrastructure

• Architect, deploy, support the corporate LAN, WAN, WLAN, and VPN infrastructure.
• Ensure high availability, performance and security of on-premise and cloud-connected

network services.

• Setup, configure and maintain secure site-tp-site VPNs, MPLS links, or private interconnects

between data centres, customer site, cloud environments and partner networks.

Network as Code and Automation

• Develop and maintain automated network configurations using Infrastructure as Code (IaC)

tools (eg: Ansible, Netbox, Python scripts)

• Implement CI/CD pipelines for network changes to improve speed, consistency, and

auditability

• Automate routine tasks such as provisioning, backups and compliance checks.

Network Security and Policy Enforcement

• Implement and manage firewall and security devices. Apply firewall rules, VLAN segmentation,

ACLs and zero-trust principles to safeguard internal and external communications.

• Collaborate with SMC Security and Risk team to enforce policies and respond to security

incidents.

Operation Support

• Respond and resolve escalate network issues, outages and performance degradations across

the SMC Corporate and Compute network infrastructure.

• Analyze logs, run diagnostics and coordinate with vendors, carriers as needed.
• Work with internal observability team to setup and maintain monitoring tools to proactively

identify bottlenecks, errors and abnormal behaviours.

• Analyze trends for bandwidth, hardware utilization, and growth to inform scaling and make

recommendation to procurement decisions.

• Design and rest redundant paths, failover mechanisms and DR playbooks to ensure

uninterrupted connectivity during outages or maintenance.

• Participate in operation standby roster and on-call for time to time.

Project Management and Stakeholder Management

• Support the deployment team in their project management and resource allocation for the

network portion of AI cluster installations.

• Collaborate and work closely with Global Operation Centre, Software Defined Infrastructure

team, Data Centre Infrastructure team and Solution Architects to support deployments and to

maintain SLAs.

Technology Expertise

• Maintain and expand expertise in physical network hardware and advanced networking

technologies, including (i) NVIDIA InfiniBand; (ii) Spectrum Ethernet Platform, and (iii) RDMA

over Converged Ethernet (RoCE).

• Familiar with open source network operating systems such as Cumulus Linux and Sonic
• Maintain and expand expertise in NetDevOps practices to maintain software defined network

infrastructure

• Provide technical support and troubleshooting for advanced networking technologies,

escalating to vendors as needed.

• Mentor junior network engineers, assisting with their technical development.

Stakeholder Management

• Work closely with both Firmus Engineering and Commissioning teams to align network

infrastructure with customers’ requirements.

• Facilitate knowledge sharing and communication between teams and create and maintain

comprehensive technical documentation.

• Maintain and build strong relationships with key technology partners and vendors and

proactively manage and coordinate partner engagement on site.

Skills & Experience

• Bachelor’s degree in network engineering, computer science, or a related technical field.
• 5+ years of experience in network engineering, with a focus on AI infrastructure.
• Experience in Linux systems especially host network configuration.
• Strong project management skills and experienced in complex technical projects.
• Excellent problem-solving and analytical skills.
• Ability to work independently and as part of a team.
• Strong communication skills, both written and verbal.
• Willingness to undertake international and/or domestic travel for on-site deployments and

commissioning.

• Solid understanding of advanced networking technologies, particularly those related to AI

would be highly advantageous.

• Hands-on experience with NVIDIA InfiniBand, Spectrum Ethernet Platform, and/or RDMA over

Converged Ethernet (RoCE) preferred.

ABOUT FIRMUS AND SUSTAINABLE METAL CLOUD

Firmus Technologies is a global leader tracking the energy problem in Artificial Intelligence (AI). Our mission is to create the world’s most energy-efficient AI infrastructure, combining cutting-edge technology with a steadfast commitment to sustainability. We provide customers access to energy savings via our large-scale GPU cloud service Sustainable Metal Cloud (SMC).

Our infrastructure and cloud service is designed to transform the way AI is hosted, empowering organisations to scale their AI workloads efficiently while drastically cutting carbon emissions and operational costs. With locations across Southeast Asia and a growing presence globally, we are expanding our footprint of energy-efficient, sustainable AI factories that enable the responsible growth of artificial intelligence.