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Network Engineer - eir Business NI

Closing Date: 24/08/2026
Location: Belfast
Reference #: 2100

Role Title:

Network Engineer

Business Area:

Operations

About This Role:

Objective 

  • 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. 


Expectations From The Role:

Key Responsibilities: 

  • 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; escalate 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. 



Requirements For A Successful Application:

Essential Skills and Experience 

  • 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.  


Desirable Skills and Experience 

  • 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. 


Key Performance Indicators 

  • 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 


Others:

Line Manager 

  • Ops Manager  

Contract Type 

  • Individual Terms