Senior Network Administrator

Date: 30-Jul-2022

Location: Dublin, Ireland

Company: Ornua Co-operative Limited

Ornua is a dairy co-operative which sells dairy products on behalf of its Member Co-ops; Ireland’s dairy processors and, in turn, Irish dairy farmers. It is Ireland’s largest exporter of Irish dairy products, exporting to 110 countries worldwide. Headquartered in Dublin, it has annualised sales of over €2.3 billion and a global team of 2,400 employees. Ornua operates from 10 business units worldwide, including 12 production facilities, and has sales and marketing teams working in-market across all four corners of the globe.

The Group is structured across two divisions: Ornua Foods and Ornua Ingredients.

Ornua Foods is responsible for the marketing and sales of Ornua’s consumer brands including Kerrygold, Dubliner, Pilgrims Choice, Forto and BEO. Markets are served by production facilities and in-market sales and marketing teams in Africa, Asia, Germany, Ireland, the UK, the rest of Europe, the Middle East and the US.

Ornua Ingredients is responsible for the procurement of Irish and non-Irish dairy products and for the sale of dairy ingredients to food manufacturing and foodservice customers across the world. Ornua Ingredients is also responsible for managing volatility through de-risking and trading strategies. The business is supported by production facilities in Saudi Arabia, Spain, the UK, the US and by in-market teams in Africa and the Middle East.


Ornua’s ICT department in Dublin provides a centralised ICT service to Ornua group of companies in Europe, Africa, Middle East, China and America. The Global ICT Infrastructure team are responsible for ensuring the highest level of performance and availability in a 24 x 7 datacentre, communications LAN / WAN monitoring, hardware and software upgrades, data and network security.


This represents an excellent opportunity for a suitable candidate to work with a broad range of technologies in a 24 x 7 environment. You will work closely with Senior Infrastructure Manager to further develop and enhance network management. The Senior Network and Administrator is responsible for the design, delivery, and maintenance of the Ornua network.




  • Implements Networking standards across the group
  • Implements best practice and standard service levels across the discipline
  • Manage, maintain day to day network and security operations globally and designing new network, wireless and security solutions.
  • Manage 3rd party WAN, LAN and Firewall vendors, Service, Incident and Change reviews
  • Implements remote access solutions, controls and specification
  • Support ICT Security team with ongoing and new security/compliance initiatives.
  • Deploy and manage core network connectivity, wireless solution, firewall, security, remote access, and authentication systems.
  • Designs and Maintain Global Network Standards, MPLS, P2P, SDWAN and VPNs
  • Participate in compliance/vulnerability assessment scanning and develop mitigation and remediation plans from the assessment findings.
  • Drive service ownership for the Network Cloud; assist in efforts to streamline problem and change management processes, improve alerting and incident handling, and increase automation.
  • Security Incident Management - 2nd line response to Security Incidents. Support forensic response and problem management as required.
  • Support ICT Security with regular Vulnerability assessments, risk analysis and penetration testing and advise and take remedial actions
  • Technical Lead for network related project requirements


Experience and Skills


  • 5-7 years professional experience managing enterprise WAN, LAN and Firewall environments
  • Bachelor’s Degree in Computer Engineering or related field required.
  • CCNP or equivalent Certification required
  • Production Experience and an excellent understand or certificate with Microsoft Azure Network architecture.
  • Prior experience working within a global company, working across major geographic regions is preferred
  • Understanding of manufacturing industry and operating environments is advantageous
  • Self-starter who can lead major initiatives and mentor less experienced teammates
  • Excellent knowledge of Cisco LAN equipment, wireless protocol, experienced in wireless surveys and remedial steps.
  • Experience with network sniffing, bandwidth monitoring, advanced network troubleshooting and security tools
  • Excellent working knowledge of Palo Alto Firewalls (IPSec-VPN & remote VPN).
  • Knowledge managing IDS/IPS systems
  • Experience with administering, troubleshooting and configuring / implementation of Cisco switches, Palo Alto Firewalls and Aruba WIFI.
  • Demonstrated ability in solving business IT problems, excellent written and oral communication skills, excellent interpersonal skills, ability to motivate in a team-oriented, collaborative environment, and exceptional service orientation.
  • You will hold certification in one or some of, the following or equivalent:
    • CCNA, CCNP, Cloud Network, Azure, AWS, Firewall cert

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