Top Network Engineer Jobs in Sydney

Deploys, configures, and supports data center networks, switches, routers, firewalls, WAN links, and network fabrics. Troubleshoots connectivity, routing, and performance issues; supports site builds, cabling, device testing, planned changes, observability, and alert response. Maintains network documentation and source-of-truth systems, develops automation for provisioning and health checks, contributes code through Git and code review, and coordinates fault resolution with vendors, carriers, and site teams.

Build, operate, and troubleshoot large-scale data center fabrics, GPU interconnects, WAN, backbone, transit, and peering networks. Plan production changes, maintain observability, respond to incidents, and support new site deployments. Automate network provisioning, validation, remediation, and operations using software, Git, code review, testing, and CI/CD. Maintain documentation and runbooks while mentoring less experienced engineers.

Lead global corporate and cloud network architecture and roadmap. Design, deploy and operate secure, highly available hybrid LAN/WAN/Wi‑Fi/VPN across multi‑cloud and multi‑region sites. Own incident response, vendor hardware configuration, international connectivity (including China), infrastructure-as-code automation, documentation, mentoring, and participate in global on‑call rotations.

Maintain Cloudflare’s global data center network and operational availability across remote colocation facilities. Responsibilities include configuring network infrastructure, coordinating contractors and vendors, managing deployments and decommissions, creating SOPs and operational documentation, improving processes through automation and AI tools, supporting troubleshooting and root-cause analysis, and participating in a 24/7 on-call rotation. The role also involves basic program management, cross-functional collaboration, and limited travel.

Manage and optimize cloud and enterprise network infrastructure, including firewalls, SD-WAN, Azure networking, appliances, routing, switching, and network security controls. Monitor performance and security events, troubleshoot issues, maintain documentation, support technology projects, provide architecture governance, and manage network service roadmaps and lifecycle governance. Collaborate with ITSM, DevOps, and cross-functional teams to deliver reliable, secure, and high-performing network services.

Own end-to-end network design and delivery for GPU infrastructure deployments, translating customer requirements into physical build plans, coordinating third-party deployment partners remotely, managing multiple concurrent projects, troubleshooting post-deployment issues, and selecting suitable networking vendors and technologies.

Operate, monitor, maintain, and improve MPLS, data center, and global WAN networks. Configure and deploy carrier-grade infrastructure, troubleshoot outages and escalated incidents, support automation using Python and CI/CD, and contribute to network design, documentation, risk management, and project delivery. The role includes Linux administration, stakeholder collaboration, and participation in an after-hours on-call roster.

Own network reliability and performance across 350+ sites. Design, deploy, operate, and optimize enterprise networking, SD-WAN, wireless, routing, switching, firewalls, VPNs, segmentation, and secure access. Monitor threats, support disaster recovery planning, and automate network operations using Python, Ansible, and APIs. Collaborate with technology teams, managed service providers, and vendors while maintaining governance and delivering infrastructure upgrades.

Configure and support enterprise network infrastructure, including Palo Alto firewalls, Cisco routing, switching, wireless, Nexus data center systems, VXLAN, OSPF, and BGP. Support mission-critical ICS and SCADA environments using industrial protocols such as Modbus and PLC networks. Perform onsite roadside, motorway, and tunnel work during planned change windows, including after-hours activities. Network automation, monitoring tools, ITIL, FMECA, and Cisco or Palo Alto certifications are advantageous.

Provides technical leadership for enterprise Network DevOps, automation, security hardening, vulnerability remediation, and network engineering. Leads architecture across routing, switching, WAN/SD-WAN, data centers, firewalls, load balancing, and security platforms. Establishes Network as Code, Git, CI/CD, automated testing, governance, and deployment standards. Mentors engineers, leads incident and zero-day vulnerability responses, evaluates automation opportunities, and ensures new capabilities transition effectively into operations.

Designs reference architectures for AI data center networks, including L2/L3 fabrics, BGP, EVPN/VXLAN, RoCEv2, and QoS. Builds and operates labs to qualify switches, NICs, and network operating systems; performs interoperability and performance testing; reproduces complex customer issues; and troubleshoots congestion, packet loss, MTU, latency, PFC, and ECN behavior. Documents best practices, develops automation, collaborates with vendors and internal teams, and provides feedback to product R&D.

Build, operate, and harden network security controls across data centers, WAN, cloud connections, and network edges. Manage firewalls, VPNs, segmentation, access policies, remote administration, BGP security, vulnerability remediation, and DDoS readiness. Monitor security events, investigate incidents, and lead network incident response. Automate policy deployment and compliance checks using Python or Go, maintain security tooling through Git and CI/CD, and support ISO 27001 and SOC 2 audits.

Supports Telstra’s lab, test, and network integration environments through operational engineering, platform migration, connectivity management, and problem resolution. Responsibilities include firewall changes, routing and NAT analysis, network troubleshooting, migration testing, connectivity assessment, stakeholder coordination, governance, and continuous improvement to maintain reliable engineering platforms.

Design, implement, support, and optimize enterprise network infrastructure for a large-scale data centre transformation program. Responsibilities include routing and switching, migration delivery, troubleshooting, performance improvements, testing, transition activities, and stakeholder engagement across technical and business teams.

Network Engineer Intern supporting Cisco’s APJ Customer Proof of Concept team in Sydney. Responsibilities include preparing and maintaining network testbeds, troubleshooting technical issues, enhancing network infrastructure, administering lab inventory, and maintaining OH&S compliance. The role offers opportunities to support customer engagements and develop networking skills.

Architect and build IREN’s global network automation platform, including configuration generation, deployment, validation, telemetry, observability, and closed-loop remediation. Develop production services in Python or Go, establish software engineering standards, apply AI and machine learning to network operations, ensure safe automated changes, lead incident reviews, and mentor senior engineers while setting technical direction for network software.

Engineer and support enterprise LAN, WAN, data center, network security, and cloud-connected infrastructure. Develop automation with Python, Ansible, APIs, Infrastructure as Code, and Network as Code. Automate compliance validation, vulnerability remediation, configuration management, and security hardening while supporting incident response and production changes. Integrate network platforms with ServiceNow, Tenable, and Microsoft Defender, and collaborate with cybersecurity, infrastructure, architecture, and delivery teams.

Performs network optimization, capacity planning, traffic analysis, forecasting, and bottleneck identification. Designs, deploys, supports, and troubleshoots IP, WAN, mobile, and fixed network solutions. Develops Python automation scripts, conducts root cause analysis, supports network upgrades and modernization, and collaborates with operations, architecture, and vendors. Requires 6+ years of network engineering experience, telecom exposure, and strong routing and switching fundamentals.

Designs, implements, and optimizes carrier-grade IP/MPLS and SRv6 service provider networks. Provides advanced L3 operational support, troubleshoots complex issues, leads root cause analysis for critical incidents, and supports network transformation and migration programs. Develops network automation using Python, Ansible, YANG, and NETCONF/RESTCONF while managing configuration and continuous operational improvements.

Designs, deploys, and operates resilient data center network fabrics supporting GPU, AI, storage, and high-performance computing infrastructure. Responsibilities include hardware evaluation, BGP and EVPN-VXLAN network design, congestion management, connectivity integration, automation, monitoring, documentation, vendor collaboration, troubleshooting, and technical escalation. The role also develops network architectures, supports deployments, and provides technical guidance to leadership and customers.

Hands-on Network Engineer responsible for designing, deploying, optimizing, and automating enterprise network infrastructure across traditional, cloud, and hybrid environments. The role requires expertise in routing, DNS, DHCP, VPNs, cloud networking, dedicated connectivity, network security, Infrastructure as Code, and highly available multi-region architectures. The engineer will support complex, multi-site environments and use Terraform or CloudFormation to automate network provisioning.

Designs and supports network security infrastructure as a firewall engineer, performs remediation work, and uses DevOps tools including Bitbucket, Jenkins, JIRA, GitHub, Terraform, and Vault. The role requires at least six years of experience.

Build out and expand Cloudflare's global network by provisioning and maintaining datacenter hardware and network devices, performing remote server administration via IPMI/BMC, configuring network equipment, managing contractors, automating tasks with Python/Changie and agentic AI, creating SOPs/runbooks, and coordinating cross-connects and deployments.

Build and design proxy infrastructure from scratch, implement rotation systems, manage IP reputation, optimize for performance, and develop reverse proxy systems for various proxy types.

Maintain, troubleshoot, and optimize high-performance, low-latency infrastructure supporting global financial exchanges. Responsibilities include tuning RHEL systems, managing highly available routing and multicast networks, implementing security and disaster recovery controls, coordinating maintenance windows and upgrades, and improving automation, configuration management, observability, and operational tooling using Ansible, Zabbix, and Python.