Senior AI Networking Engineer — Infra & Automation

Firmus Technologies Pty Ltd.; San Francisco, Northern (CA, KY); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Firmus Technologies is seeking a Senior Network Engineer to lead design and deployment of network infrastructure for AI projects. You will oversee LAN/WAN/WLAN, VPN, and data center interconnects, while enabling network as code and automation across on-prem and cloud environments.

You will collaborate with security, observability, and deployment teams, mentor junior engineers, and coordinate international deployments, with travel as needed.

Qualifications

• Bachelor’s degree or higher in a relevant field.
• 8+ years of experience in network engineering for AI infrastructure.
• Experience with Linux system network configuration.

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-to-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 IaC tools (e.g. 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 communications.
• Collaborate with SMC Security and Risk team to enforce policies and respond to security incidents.
• Operation Support
• Respond and resolve elevated 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.
• Maintain and expand expertise in physical network hardware and advanced networking technologies, including (i) NVIDIA InfiniBand; (ii) Spectrum Ethernet Platform, and (iii) 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

8+ years experience

Linux networking

Project management

Problem solving

Independent worker

Communication skills

Travel readiness

AI networking

NVIDIA InfiniBand/RoCE

Education

Bachelor’s degree in network engineering, computer science, or a related technical field

Job description

Firmus Technologies is seeking a Senior Network Engineer to lead design and deployment of network infrastructure for AI projects. You will oversee LAN/WAN/WLAN, VPN, and data center interconnects, while enabling network as code and automation across on-prem and cloud environments.

You will collaborate with security, observability, and deployment teams, mentor junior engineers, and coordinate international deployments, with travel as needed.