Network Security Engineer

Tirlán Limited; Dublin; Hybrid; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Hybrid working model

Free parking with EV charging

On-site gym

Health and wellbeing supports

Parenting room facilities

Job summary

Tirlán Limited is seeking a Network Security Engineer to maintain and secure our network across manufacturing sites, offices, retail locations and data centres. The role blends hands-on engineering with security operations in a large-scale enterprise environment.

You will work with internal teams and managed service partners to deliver a secure, resilient network that supports business growth. A degree and relevant certifications are preferred, with hybrid working and career development

Qualifications

• Degree in Computer Science, Information Technology, Engineering or a related discipline, or equivalent relevant experience.
• Experience supporting enterprise-scale network environments.
• Experience configuring and supporting network infrastructure in complex multi-site environments.
• Knowledge of network security principles and best practices.

Responsibilities

• Maintain, secure and enhance network infrastructure across ~80 locations including facilities, offices, retail sites and data centres.
• Configure, deploy and maintain enterprise networking equipment (switches, routers, WLAN, firewalls).
• Implement and maintain network security controls per Information Security guidance.
• Monitor performance and identify opportunities to improve availability and resilience.
• Support capacity planning, upgrades and technology refresh programmes.
• Troubleshoot network and firewall incidents and performance issues.
• Contribute to disaster recovery and business continuity planning.

Skills

Network engineering

Security operations

Troubleshooting

Stakeholder management

Communication

Education

Degree in CS/IT/Engineering

Tools

CCNP

Palo Alto Networks

Fortinet

Cisco Security

Job description

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Location: Abbey Quarter, KK, IE, R95 DXR1

Network Security Engineer

Kilkenny or Citywest, Dublin | Hybrid Working

Tirlán is embarking on a significant IT transformation programme as we build and strengthen our internal technology capability. Working alongside our strategic IT partners, we're creating an exciting opportunity for experienced technology professionals to play a key role in shaping and supporting the future of IT across our business.

As a leading Irish food and nutrition co-operative, Tirlán operates a diverse portfolio of trusted consumer, dairy, ingredients and agri brands including Avonmore, Kilmeaden, Truly Grass Fed, GAIN Animal Nutrition and mymilkman.ie.

With over 2,300 employees, 11 processing facilities, 52 agri retail branches and operations spanning Ireland, the US, Middle East, Africa and China, technology plays a critical role in supporting our purpose of nourishing the world while caring for our environment for future generations.

The Opportunity

Reporting to the IT Central Infrastructure Manager, the Network Security Engineer will play a critical role in maintaining, securing and enhancing Tirlán's network infrastructure across approximately 80 locations, including manufacturing facilities, offices, retail sites and data centres.

This role combines hands-on network engineering with security operations, providing the opportunity to work on large-scale infrastructure, modernisation projects and continuous improvement initiatives within a complex enterprise environment.

You will work closely with both internal stakeholders and our managed service partners to deliver a secure, resilient and high-performing network that supports business growth and operational excellence.

Key Responsibilities

Network & Security Operations

• Partner with managed service providers to support and continuously improve Tirlán's network and security environments.
• Configure, deploy and maintain enterprise networking equipment, including switches, routers, wireless technologies and firewalls.
• Implement and maintain network security controls in line with guidance from the Information Security team.
• Monitor network performance and proactively identify opportunities to improve availability, reliability and resilience.
• Support network capacity planning, upgrades, expansions and technology refresh programmes.
• Troubleshoot and resolve network and firewall incidents, service disruptions and performance issues.
• Contribute to disaster recovery, business continuity and resilience planning activities.

Infrastructure Improvement & Governance

• Maintain accurate network topology diagrams, configurations and technical documentation.
• Ensure compliance with relevant security standards, policies and best practices.
• Collaborate with infrastructure, cybersecurity and application teams to support new business initiatives and projects.
• Provide technical expertise and recommendations to support the ongoing evolution of Tirlán's network infrastructure.
• Contribute to the development and delivery of Tirlán's enterprise infrastructure strategy.

What You'll Bring

• Degree in Computer Science, Information Technology, Engineering or a related discipline, or equivalent relevant experience.
• Experience supporting enterprise-scale network environments.
• Strong understanding of WAN, LAN, WLAN, routing, switching, firewalls, VPNs and remote access technologies.
• Experience configuring and supporting network infrastructure in complex multi-site environments.
• Knowledge of network security principles and best practices.
• Experience managing and collaborating with third-party service providers.
• Strong troubleshooting, analytical and problem-solving skills.
• Excellent communication and stakeholder management abilities.
• Professional certifications such as CCNP, Palo Alto Networks, Fortinet, Cisco Security, or equivalent.
• Experience supporting manufacturing or industrial network environments.
• Knowledge of network monitoring, performance management and security tooling.
• Experience contributing to infrastructure transformation or modernisation programmes.
• Be part of a major IT transformation programme with the opportunity to influence future technology direction.
• Work across a diverse and complex enterprise environment spanning manufacturing, food production, agriculture and consumer brands.
• Hybrid working model with flexibility and collaboration.
• Career development opportunities within a growing technology function.
• Competitive salary and benefits package.
• Hybrid working and Flex Fridays
• Free parking with EV charging facilities (where applicable)
• On-site gym at selected locations
• Parenting room facilities
• Health and wellbeing supports
• Career development and learning opportunities
• Collaborative and inclusive workplace culture

Commitment to Diversity, Equity & Inclusion

At Tirlán, we believe diverse teams create stronger outcomes. We are committed to creating an inclusive workplace where everyone feels valued, respected and empowered to reach their full potential.

We welcome applications from candidates of all backgrounds, experiences and perspectives.

This role is suitable for all genders.

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