Top Network Engineer Jobs in Dublin

Leads software engineering within Network Services, designing, developing, testing, troubleshooting, and maintaining secure, resilient applications. Reviews code, improves automation and operational stability, and promotes responsible AI-assisted development practices. Evaluates vendor and architectural solutions, establishes validation and release controls, and collaborates across distributed agile teams. Requires advanced programming expertise, software development lifecycle knowledge, cloud-native experience, application resiliency, security, and financial-services IT understanding.

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.

Installs, configures, maintains, and troubleshoots network infrastructure including routers, switches, firewalls, VPN endpoints, data centers, backbone systems, and CDN environments. Performs network upgrades, resolves outages and hardware or software issues, manages ISP and vendor relationships, handles traffic and incident queries, and supports global production and corporate networks. Requires strong knowledge of routing, switching, server systems, Active Directory, DNS, virtualization, firewalls, CDN technologies, and internet peering.

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.

Designs, implements, and manages secure, highly available hybrid networks across AWS, Azure, Cisco Meraki, and on-premises infrastructure. Responsibilities include network architecture, cloud networking, security controls, monitoring, troubleshooting, VPN integration, automation, disaster recovery, documentation, compliance, and stakeholder communication. Supports switches, routers, firewalls, Wi-Fi, servers, virtualization, and storage systems while optimizing network performance and reliability.

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.

Implements and supports Cisco, Aruba, and Juniper LAN, WAN, wireless, and security environments. Provides first- and second-level incident support, troubleshooting, escalation, patch management, preventative maintenance, network health checks, technical reporting, and customer liaison. The role includes incident management against SLAs, vendor TAC coordination, managed-service tool oversight, project rollouts, process improvements, and participation in a 24/7 on-call rota.

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.

Provides first- and second-level support for customer Juniper and Aruba network and security environments from a Dublin NOC. Responsibilities include incident management, troubleshooting, SLA adherence, escalation, network health checks, technical reporting, patch management, preventative maintenance, RMM administration, and coordination with vendor TAC teams. The role also supports managed-service improvements and offers training toward vendor certifications.

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.

Provides hands-on junior technical support, including floor-walking after moves, resolving first-line issues, installing and de-installing desktop and AV equipment, cabling, desk testing, asset management, equipment handling, issue tracking, and administrative updates. The role also supports deliveries, waste separation, equipment preparation, and escalation of unresolved incidents. Network and comms room installation experience is desirable but not essential, provided the candidate is willing to learn.

Design, maintain, and optimize HLR/HSS/UDM subscriber templates and roaming logic. Lead Full MVNO profile deployments, collaborate with roaming partners and system integrators, define HLR/HSS KPIs, and troubleshoot signalling using Wireshark and roaming platforms.

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.

Provide regional technical leadership and high-level installation, configuration, documentation, management, and troubleshooting for LAN/WLAN/WAN across DoD/DHA medical facilities in Europe. Advise government and contractor staff, lead network specialists, maintain standards, and ensure security and high availability using tools like Orion SolarWinds, ARMIS, and Ansible.

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.