Top Network Engineer Jobs in Belfast

Design, configure, and maintain secure, scalable enterprise networks; administer Citrix NetScaler VPX; develop Ansible playbooks for automation; monitor and troubleshoot LAN/WAN/cloud networking, L4-L7 traffic, and routing (BGP/OSPF/VXLAN); document configurations and support infrastructure projects.

As a Junior Network Engineer, you will implement, maintain, and troubleshoot network and security aspects, working closely with a global team to support infrastructure.

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.

The Network Operations Engineer III monitors and supports network infrastructure, ensuring service levels are met, troubleshooting issues, and maintaining documentation.

The Network Operations Engineer II supports CME's network infrastructure by monitoring, troubleshooting, and ensuring service levels. Responsibilities include incident response, technical operations, network management, and documenting processes.

As an Operations Reliability Engineer, you will maintain network reliability and performance, troubleshoot incidents, and support automation initiatives across network operations.

Lead deployment and maintenance of UK Government network infrastructure (primarily Cisco), enhance security posture with SD-WAN, NGFWs, segmentation and content delivery, manage lifecycle and inventories, mentor engineers, drive project execution, and produce compliance and KPI reporting for senior leadership.

Lead technical delivery of customer projects and act as technical lead on network faults and major incidents. Provide hands-on, customer-facing support for enterprise SD‑WAN, LAN/WLAN, and security solutions; troubleshoot high-pressure incidents, manage escalations and change requests, and maintain technical documentation. Requires UK site travel and occasional out-of-hours work.

As a NOC Engineer, you will ensure network stability by monitoring, troubleshooting, and resolving incidents in a critical operational environment, while adhering to SLAs.

As a Senior Network Engineer, you will design and manage enterprise SASE and SD-WAN solutions, mentor engineers, lead projects, and ensure technical excellence.

The Senior Network Engineer will support Exegy's network infrastructure, including administration, device maintenance, and collaboration with vendors for troubleshooting and changes.

The Senior Network Automation Engineer will enhance Perl code for network automation, maintain REST APIs, reduce technical debt, and support junior engineers.