Top Network Engineer Jobs in Dublin

Design, automate, validate, troubleshoot, and operate Microsoft’s hyperscale cloud network infrastructure. Develop network topologies, routing architectures, infrastructure-as-code, automated testing, telemetry, and reliability improvements. Diagnose production issues across hardware, network operating systems, APIs, and automation. Participate in architecture reviews, on-call rotations, incident response, postmortems, live-site operations, and engineering mentorship.

Design and build automation for NVIDIA switches and InfiniBand fabrics, including configuration management, drift reconciliation, NAT gateways, L4 load balancing, and failover. Define network behavior at scale across BGP, VXLAN, EVPN, and AI workloads. Operate the automation in customer environments, improve reliability based on production failures, and establish networking architecture and technical standards. The role requires strong network automation, NVIDIA networking, fabric fundamentals, production-scale operations, and Go or Python software engineering.

Designs, implements, and manages secure hybrid network infrastructure across AWS, Azure, Cisco Meraki, and on-premises environments. Responsibilities include network architecture, cloud networking, security controls, performance monitoring, troubleshooting, VPN-based integration, automation, disaster recovery, documentation, compliance, and stakeholder communication. The role supports LAN/WAN infrastructure, switches, routers, firewalls, wireless networks, servers, virtualization, and storage systems while improving reliability and availability.

Monitors and maintains optical and IP network health in a 24x7 operations environment. Performs alarm response, first-level troubleshooting, ticket documentation, incident escalation, vendor coordination, and maintenance support using established procedures. The role assists with service restoration, network changes, circuit turn-ups, and diagnostic data gathering while developing networking expertise through training and mentorship.

Monitors and maintains optical and IP networks in a 24x7 operations environment. Performs alarm monitoring, first-level troubleshooting, incident triage, ticket documentation, vendor case support, maintenance and change activities, and service restoration verification. Escalates complex issues to senior engineers and coordinates with field technicians, facilities, ISPs, and service providers. Develops networking expertise through structured training, shadowing, and mentorship.

Supports 24x7 optical and IP network operations by troubleshooting complex incidents, restoring services, executing maintenance and changes, coordinating vendors and stakeholders, performing root cause analysis, and validating service stability. The role also develops runbooks, improves monitoring and operational processes, mentors junior engineers, supports network turn-ups, and coordinates with carriers, field technicians, and service providers.

Supports global production CDN deployments and network/server environments. Troubleshoots vendor hardware, switches, traffic issues, ISP connectivity, fiber-optic infrastructure, and network incidents. Collaborates with ISPs, vendors, colocation facilities, and global teams, including participation in 24/7 support and occasional weekend work. Performs root cause analysis for outages and assists with network and server capacity and performance activities.

Supports global CDN deployments and production network infrastructure, troubleshooting server, switch, fiber-optic, ISP, and vendor issues. Assists with traffic queries, network incidents, outage root-cause analysis, and hardware replacements. Collaborates with ISPs, colocation facilities, service providers, and international teams while participating in 24/7 support rotations and occasional weekend work.

Provides Level 2 technical support for enterprise and data-centre network infrastructure. Troubleshoots routing, switching, firewall, wireless, connectivity, and performance issues; monitors alerts; implements approved network changes and hardware replacements; maintains documentation; and coordinates with Level 3 teams, vendors, and service providers. Supports incident, problem, and change management while following security and operational standards.

Provides Level 2 operational support for enterprise and data-center networks. Troubleshoots routing, switching, firewall, wireless, connectivity, performance, and infrastructure issues; monitors alerts; implements approved configurations, upgrades, replacements, and network changes; maintains documentation; and coordinates with Level 3 engineers, vendors, and service providers. Supports incident, problem, and change-management processes while following security and operational standards.

Designs, deploys, operates, and troubleshoots large-scale datacenter, campus, core, and high-performance compute networks. Owns routing and switching standards, qualifies platforms and topologies, improves monitoring and documentation, automates network tasks, resolves Layer 2/Layer 3 incidents, and supports capacity build-outs. The role partners with compute, facilities, and software teams, participates in on-call rotations, and may require travel to build sites.

Troubleshoot, restore, and maintain optical and IP networks in a 24x7 NOC environment. Own complex incidents from detection through resolution, perform multi-vendor diagnostics, execute maintenance and network changes, coordinate vendors and service providers, conduct root cause analysis, improve runbooks and monitoring, and mentor junior engineers. The role supports DWDM, CWDM, routing, switching, and transport technologies while coordinating incident communications and shift handoffs.

Establish and lead network Infrastructure as Code and DevOps practices across a global enterprise network. Build reusable Python and Go automation with Terraform, Ansible, APIs, CI/CD pipelines, testing, drift detection, policy enforcement, and controlled rollouts. Modernize existing services, reduce configuration drift and operational risk, support complex changes and incidents, influence architecture and governance, and mentor engineers while maintaining hands-on responsibility for enterprise networking.

Design, build, and operate scalable control-plane services and Kubernetes controllers enforcing network segmentation and security policies across clusters, clouds, and data centers. Integrate cloud-native networking (CNI, service mesh), automate policy lifecycle, lead production troubleshooting, apply CI/CD and observability, mentor engineers, and use AI tools to accelerate development and operations.

Design, build, and maintain scalable backend services for eBay's Cloud Security Segmentation platform. Develop Kubernetes-based control plane services, troubleshoot distributed systems and cloud infrastructure, use CI/CD and automated testing, participate in code reviews and incident response, and leverage AI-assisted engineering tools to improve productivity and reliability.

The role involves maintaining Unix systems, automating operations, troubleshooting issues, and improving IT infrastructure performance globally within a large team.

Serves as the highest technical escalation point for global network operations. Leads complex incident resolution, root cause analysis, mentoring, network troubleshooting, infrastructure projects, datacenter migrations, cloud connectivity, security reviews, and enterprise network design. Supports Cisco ACI, firewalls, load balancers, SD-WAN, routing, switching, cloud networking, automation, monitoring, and network security across mission-critical environments.

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.

Designs, deploys, troubleshoots, and continuously improves global LAN, WAN, Wi-Fi, cloud, manufacturing, and hybrid network infrastructure. Responsibilities include Zero Trust security, firewall and NAC management, SD-WAN, VPN, cloud connectivity, automation using Python, Ansible, and Terraform, observability, capacity planning, incident management, documentation, architecture reviews, and mentoring engineers.

Provide day-to-day support for global CDN production and corporate networks, troubleshoot server and switch hardware, coordinate with ISPs and vendors, perform root cause analyses for outages, and participate in 24/7 support rotations. Work includes multi-vendor environments, fiber-optic infrastructure, and scripting for operational tasks.

Design and implement automation and ETL pipelines to centralize partner data, build self-service and alerting workflows, automate operational runbooks and incident contact retrieval, and create monitoring dashboards and reconciliation scripts to ensure data quality and consistency.

Build software, services, and frameworks to manage large GPU supercomputing network fabrics: metrics collection, configuration, zero-touch provisioning, monitoring, IaC-based deployments, and automated remediation to ensure scalable, reliable network operations.

Build and operate the network platform: set SLIs/SLOs, drive reliability improvements, own incident response and postmortems, develop observability and safer change workflows, automate operations, and collaborate with network and platform teams to embed operability.

Build and maintain services and tooling to automate and secure network lifecycle across data centers. Implement CI/CD, staged rollouts, drift detection, observability pipelines, and APIs that integrate network source-of-truth with the cloud platform. Collaborate with network engineers and SREs to turn operational pain into production-grade automation and tooling.