Network Engineer - eir Business NI

The primary functions of the role are to support the delivery and ongoing operation of network and security solutions and services across the assigned customer base.

Working under the guidance of senior engineers, the Network Engineer will assist with troubleshooting, configuration, implementation activities and documentation, developing strong technical skills while contributing to excellent customer outcomes.

The Network Engineer is an important role within the eir evo UK business, supporting exceptional customer service and technical delivery across our customer base.

The successful candidate will have knowledge of networking and security concepts and hands-on exposure to technologies such as Cisco LAN/WAN/WLAN and network security platforms (e.g., Fortinet).

This role suits someone with a strong technical base, desire to learn, a customer-first mindset and an ability to follow processes, document work clearly and escalate effectively when required.

• Provide day-to-day support for customer network and security services, following agreed processes and SLAs.
• Assist with fault diagnosis and troubleshooting across LAN/WAN/WLAN and security services; escalated appropriately with clear information.
• Support implementation activities (adds/moves/changes), including device configuration, testing and validation under supervision.
• Assist with the creation and upkeep of technical documentation, build notes, diagrams and test results to meet eir evo standards.
• Follow customer change control procedures and ensure actions are auditable and compliant.
• Carry out routine maintenance tasks (patching coordination, backups where applicable, configuration checks) as assigned.
• Support the implementation of security controls (e.g., firewall rules, VPN users/policies)
• Work with colleagues, vendors and partners to resolve incidents and requests, contributing to a positive customer experience.
• Participate in a shared on-call rota as required, with support and escalation paths in place.
• Demonstrate continuous learning through labs, shadowing and completion of agreed training and certifications.

• Demonstratable networking knowledge and hands-on experience CCNA accredited (or working towards) is preferred.
• Understanding of core concepts: TCP/IP, subnetting, VLANs, routing basics (e.g., OSPF), NAT, DNS and DHCP.
• Awareness of network security principles and common technologies (firewalls, VPNs, IPS/UTM); exposure to Fortinet is an advantage.
• Basic understanding of WAN connectivity (e.g., Internet access, VPNs, leased lines/MPLS concepts) and access technologies.
• Strong customer service mindset with clear verbal and written communication.
• Ability to follow procedures, document work accurately, and manage tasks/tickets to completion.
• Experience using common tooling (ticketing systems and Microsoft Office); ability to create clear documentation in Word and basic diagrams (Visio) is desirable.
• A proactive approach to learning and the ability to work effectively within a team, knowing when to ask for help.

• Cisco CCNA certification (if not already held) and progression plan towards CCNP-Enterprise.
• Entry-level Fortinet certification (e.g., FCA/FCP) or equivalent experience with firewall administration.
• Hands-on exposure to Wi-Fi deployments and troubleshooting.
• Basic scripting/automation interest (e.g., Python) and willingness to learn tooling such as Ansible.
• Exposure to public cloud networking concepts (Azure/AWS/GCP) is an advantage.

• Technical development and adherence to standards/processes
• Customer focus and quality of communication
• Quality and accuracy of documentation and ticket updates
• Timely escalation and effective collaboration
• Contribution to incident/request resolution within agreed targets