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Senior Network & Security Engineer

Date: Oct 27, 2018

Location: Kilkenny, KK, IE, Dublin24

Company: Glanbia

Glanbia Business Services

Senior Network & Security Engineer


An opportunity has arisen within Glanbia Business Services for an experienced Senior Network & Security Engineer.  This is a permanent position and will report to the Network Architect.  This position can be based in our Kilkenny OR Citywest, Dublin 24 office.



We have a high number of network and infrastructure related assignments which require an experienced Network Engineer. This role will have a good blend of projects and BAU tasks.  The successful candidate will be tasked with supporting, planning, procurement, design and delivery of key network solutions for a large user base. A background in enterprise class network environments is ideal for this role.




The senior network & security engineer will form a vital part of the GBS Network & Technical Security Team. The network team support a global network spanning 134 global locations and with varying site-types, from production plants to warehouses to corporate offices.  There are 2 Dublin-based and 1 US-based datacentre locations at the core of the network, providing a highly resilient network environment. This level of resilience and redundancy is driven throughout the organisation's communications networks. The network must support transmission of business critical applications such as MES, LIMS, SAP, S4B, video-conferencing, collaboration tools, web and cloud services. The team work closely with key vendors and managed-service partners for network and security services.



Key elements of the role:

  • Design & manage global Cisco network devices (600+) located on various sites across Ireland, Europe, US & ASPAC
  • Design & manage global enterprise firewall estate (40+) consisting of Checkpoint & Cisco ASA technology
  • Manage & assist in global and local network deployment projects to ensure smooth delivery of network installations and to deliver best-in-class agreed network standards
  • Deliver network solutions to the internal business units in response to their high-level business requirements, ensuring their needs are met through network solutions
  • Document solution proposals using best-practice delivery of highly resilient networks
  • Vendor management within a managed-service environment is a key part of the role, reporting of key SLAs and KPIs and driving the service providers to deliver to those metrics and provide a high level of customer experience
  • Provide level 3 network support to Global Servicedesk on internal customer network issues relating to LAN, WLAN, WAN, VPN & firewall filtering
  • Provide mentoring and support to other network team members, deploy sandbox



  • Bachelor of Science Degree in Computer Science


Experience / Requirements

  • 7+ years of experience in enterprise routing, switching and network security
  • Indepth knowledge of Cisco routing, switching & WLAN protocols: BGP, EIGRP, Spanning Tree, Etherchannel, QoS (DSCP, 802.1p), VLANs 802.1q, 802.11ac, 802.11n, 802.1x
  • Strong working knowledge of firewall design and network security protocols:  Firewall ACLs, NAT, IPSec site to site VPNs, SSL VPNs, encryption levels, hashing algorithms
  • Indepth knowledge of fibre-optic cabling, structured cabling systems, electrical power and best practices
  • Solid experience with managed-service partners and vendor management
  • Vast experience troubleshooting enterprise network issues and application of realistic solutions within the context of the business
  • Ability to document and illustrate network proposals and solutions in articulate manner
  • Ability to communicate ideas and solutions very well
  • Strong team-player & works on own initiative




  • The energy, enthusiasm and drive to make it happen.
  • A team player who has the ability to motivate others, making it fun while getting the job done.
  • Enjoys working in a fast-paced, innovative environment where the focus is on continuous improvement and the challenge to make it better.