132 Network Maintenance jobs in Ireland

Job Title:
Network Security Engineer (Cisco ISE)

Location:
Dublin (Hybrid – 3 Days Onsite / 2 Days Remote)

Job Type:
Full-Time, Permanent

Salary:
€60,000 – €5,000 + Standard Benefits

Overview:

A leading organisation in Dublin is seeking an experienced
Network Security Engineer
to join its infrastructure team on a
permanent, full-time basis
. This position offers a
hybrid working model
, with three days onsite and two remote, and provides an excellent opportunity for a motivated professional to work with enterprise-grade network security technologies in a dynamic environment.

Role Summary:

The successful candidate will be responsible for the design, implementation, and support of secure network infrastructure, with a strong focus on
Cisco ISE
,
wireless technologies
, and
routing & switching
. This is a hands-on technical role that will suit someone with a solid background in Cisco networking and a proactive approach to problem-solving.

Key Responsibilities:

• Configure, manage, and maintain
  Cisco ISE
  for network access control and policy enforcement.
• Support and optimise
  wireless networking
  infrastructure across multiple sites.
• Maintain and troubleshoot
  routing and switching
  infrastructure (Cisco-based).
• Monitor network performance and security, responding to incidents and implementing improvements.
• Work collaboratively with internal teams to ensure secure, reliable connectivity across the organisation.
• Document configurations, changes, and processes in line with IT standards.

Candidate Requirements:

• Minimum of 3 years' experience in a network engineering or network security role.
• Strong hands-on experience with
  Cisco ISE
  (design, deployment, and management).
• Solid understanding of
  wireless networks
  , including configuration and performance tuning.
• Proficient in
  routing and switching
  protocols (e.g., BGP, OSPF, VLANs, STP).
• Familiar with network monitoring and diagnostic tools.
• Cisco certifications (e.g., CCNP Security, CCNP Enterprise, or equivalent) are advantageous.

Offer & Benefits:

• Salary:
  ,000 – €6 00, depending on experience
• Standard benefits package, including pension, healthcare, and annual leave
• Hybrid working model
  : 3 days in-office, 2 days remote
• Opportunity to work in a collaborative environment with modern network technologies

Network & Security Engineer (Level 2)

About Your New Employer

• Innovative and forward-thinking company
  : Join a team that is at the forefront of cybersecurity and network engineering.
• Collaborative environment
  : Work with a dynamic team that values innovation and professional growth.
• Cutting-edge projects
  : Be part of exciting projects that involve the latest in network security and SOC operations.

About Your New Job

• Support & Operations
  : Provide Level 2 support for networking and security incidents, monitor and manage firewall and SASE environments, perform proactive maintenance, and escalate to Level 3 or vendor support when required.
• SOC & Security Monitoring
  : Monitor SIEM dashboards, perform initial triage, containment, and escalation of security incidents, assist in threat hunting, log analysis, and vulnerability management, and document incidents.
• Project Participation
  : Support implementation and migration projects, assist in firewall upgrades, VPN rollouts, and SD-WAN/SASE deployments, and maintain accurate technical documentation.
• Collaboration
  : Work closely with the SOC, senior engineers, and project managers, and contribute to a knowledge-sharing environment and continuous improvement.

What Skills You Need

• Essential
  :
• 2-4 years' experience in network/security engineering or SOC environments.
• Working knowledge of firewalls (Palo Alto, Fortinet, SonicWall).
• Experience with SASE or SD-WAN solutions (Cato, Versa preferred).
• Familiarity with SIEM platforms (Splunk, Sentinel, QRadar, etc.).
• Hands-on troubleshooting skills for networking (routing, switching, VPNs).
• Strong analytical skills and ability to follow incident response processes.
• Desirable
  :
• Experience working in an MSP or enterprise SOC environment.
• Exposure to endpoint security, EDR, and vulnerability scanning tools.
• Certifications such as NSE4, PCNSA/PCNSE, Security+, CCNA Security, or SOC analyst certs (e.g., Blue Team Level 1/2).
• Knowledge of cloud security (Azure, AWS).

What's on Offer

• Competitive salary & benefits package
  : Attractive compensation and benefits.
• Professional development
  : Career development with a path toward Level 3/senior engineering roles, training and certification support.
• Hybrid working
  : Base in Limerick with hybrid working options.
• Innovative environment
  : Exposure to enterprise security projects and technologies.

What's Next

Apply now by clicking the "Apply Now" button or call me, Michael on If the job isn't quite right but you are looking for something similar, please get in touch. We also have multiple Temp, FTC, and Contract jobs available.

Network Security Engineer- Dublin
€70-90k with benefits

**Please note that this role will be based in Dublin Ireland. Applicants applying must be eligible to work and open to relocate**

We have an exclusive requirement for a Network Security specialist with one of our long-standing clients in Dublin Ireland offering a very flexible hybrid schedule.

The Network Security Engineer will be joining the Design & Engineering team. You will be the 10th member of a highly skilled group of security engineers, working across complex customer environments, delivering implementations, migrations, and escalations.

This is a hands-on technical role that will require you to have expertise in Check Point firewalls focusing on project delivery, advanced troubleshooting and collaboration with peers.

What You'll Do

• Implement, configure, and manage Check Point firewalls and security solutions.
• Provide advanced troubleshooting and escalation support for complex issues.
• Assist in customer projects, including migrations (Fortinet to Check Point).
• Support solution design when required.
• Collaborate with peers, knowledge share, and contribute to a strong team culture.

What You Will Have

• Strong hands-on experience with Check Point firewalls.
• Check Point certifications ideally CCSE

• Deep technical troubleshooting skills:

• Command line and policy installation troubleshooting.

• TCP dump and packet analysis.

• SMS server knowledge.

• Experience with cluster/firewall replacement projects.

• Broader exposure to Aruba, Cisco, or Fortinet is a plus.

Network Security Engineer - Dublin

I am excited to be working with one of Europe's leading companies who are looking to fill a number of critical Network Security Engineers to work from their state of the art Dublin offices.

Key Responsibilities:

• Manage and secure Cisco Routers, Switches, Networking Devices, and Security Appliances.
• Configure, support, and troubleshoot Firewalls, VPNs, and IDS/IPS solutions across complex networking environments.
• Design and implement secure network architectures using Cisco Secure Access, Edge Network Security, Threat Control, and Secure Mobility solutions.
• Deploy and manage Cisco Identity Services Engine (ISE) and implement 802.1X secure network access policies.
• Monitor and maintain network access security using Cisco ISE appliances.
• Implement advanced Cisco security solutions to mitigate external threats and protect connected devices.
• Provide operational support for identity management and network access control systems.
• Identify and resolve issues within Cisco network security appliances and Cisco IOS Software devices.
• Configure Cisco perimeter edge security solutions, including Cisco ASA firewalls.
• Manage and maintain the security of Cisco switches, routers, and ASA firewalls.
• Implement and troubleshoot remote-access and site-to-site VPN solutions using Cisco ASA and Cisco IOS routers.
• Deploy Cisco ASA Next-Generation Firewall (NGFW), Web Security, Email Security, and Cloud Web Security solutions.
• Troubleshoot Network Access Control, Web Authentication, and Guest Access configurations.
• Apply strong understanding of Cisco ISE Fundamentals, Advanced Access Control, and Endpoint Access Control.

Skills & Experience:

• Proven experience in Network Security, particularly within Cisco Network environments.
• Hands-on experience with Cisco Umbrella, Stealthwatch, WSA, ESA, AMP for Network and Endpoint, ASA, NGFW, Firepower NGIPS, Cloudlock CASB, AnyConnect, ACI Security, Threat Control, TrustSec, and DNA.
• Additional experience with any of the following is an advantage: Cisco Data Center Nexus, Cloud Security, Cisco ASA/PIX, Cisco Secure ACS, Cisco ACI, Cisco IronPort, Checkpoint FW-1/NG, Juniper Netscreen/SRX, Bluecoat, and Fortinet security hardware/software products.
• Strong ability to manage multiple priorities in a fast-paced, dynamic, and collaborative environment.
• Excellent analytical, communication, and documentation skills, with the ability to influence and collaborate across cross-functional teams.
• Full driving license and access to own vehicle
  (required).

This is a phenomenal time to join my client as they expand their Network team. Get in touch ASAP and do not miss this amazing opportunity

Desired Skills and Experience
Network Security Engineer

Network Security Engineer – Palo Alto Firewall Management

Grant Thornton Advisors LLC and Grant Thornton Ireland (GT) have recently come together to form a powerful multinational, multidisciplinary platform that delivers premier advisory, tax, and independent audit services. With $2.7 billion in revenues and nearly 60 offices across the U.S., Ireland, the UAE, and other territories, our combined platform brings enhanced solutions and capabilities supported by cutting-edge technologies and a team of nearly 13,000 quality-driven professionals.

Grant Thornton Ireland contributes nearly 3,000 people across 9 offices in Ireland, the Isle of Man, Gibraltar, and Bermuda, and is part of a global network of over 68,000 professionals spanning more than 149 countries. Together, we offer a truly global reach backed by deep local knowledge and national expertise.

By joining forces, we strengthen our ability to act as trusted advisors who make business more personal — investing in relationships and empowering clients to make the right decisions for their organisations today and into the future. Whether working with the public sector to build thriving communities, partnering with regulators and financial institutions to build trust, or supporting diverse businesses to achieve their goals, Grant Thornton now provides a singular, seamless client experience grounded in collaboration, innovation, and a shared commitment to the issues that matter most.

At GT Ireland we don't just predict your future, we build it.

A Career at GT

Looking for a more fulfilling role in professional services? One where fresh thinking, collaboration and diversity are valued? At Grant Thornton we do things differently.

What does this mean for you?

A career in a more inclusive working environment, a more collaborative work culture, a more supported, flexible working role, more possibilities to grow and more opportunities to help shape the future for your clients. We respect and value your experience. And we want you to bring your authentic self to work and be at your best. It is how it should be.

Grow with us

At Grant Thornton, we care about our people and work hard to make you feel valued. If you are looking to deepen and develop your skills, knowledge, and experience throughout your career, then that is what you will get, and more.

Position Overview

We are seeking a highly skilled Network Security Engineer with expertise in Palo Alto firewall administration and network security to join our global security team. This role will be responsible for designing, implementing, and maintaining secure network environments that support our worldwide operations. The engineer will play a key role in protecting the organization's infrastructure, applications, and data against evolving cyber threats while ensuring compliance with regulatory and internal security standards.

Key Responsibilities

• Manage, configure, and maintain Palo Alto firewalls (on-premises and cloud) across global environments.
• Implement and optimize firewall policies, NAT rules, VPNs, and security profiles to enforce enterprise security standards.
• Monitor, analyze, and respond to firewall logs, alerts, and incidents in collaboration with SOC teams.
• Conduct regular firewall audits, rule base reviews, and risk assessments to ensure secure and efficient configurations.
• Support secure network design and architecture reviews for global projects, mergers, and technology deployments.
• Collaborate with global IT, cloud, and application teams to ensure seamless and secure connectivity.
• Assist with incident response by providing network security expertise during investigations and post-incident reviews.
• Maintain documentation of firewall policies, configurations, and operational procedures.
• Ensure compliance with corporate security policies, regulatory requirements, and industry best practices (ISO 27001, SOC 2, NIST, etc.).
• Participate in on-call rotation to support 24/7 global operations.

Qualifications & Skills

Required:

• Bachelor's degree in computer science, Information Security, or related field (or equivalent experience).
• 5+ years of experience in network security engineering with strong hands-on expertise in Palo Alto Networks firewalls (PAN-OS, Panorama).
• Solid understanding of TCP/IP, routing, switching, DNS, VPNs, and network segmentation.
• Experience with GlobalProtect, App-ID, User-ID, and Threat Prevention modules.
• Familiarity with SIEM, IDS/IPS, and network monitoring tools.
• Strong troubleshooting and analytical skills with ability to work under pressure.
• Excellent communication skills for working in a distributed, multicultural global team.

Preferred:

• Palo Alto certifications (PCNSE, PCNSA).
• Experience with cloud security (Azure, firewall and networking).
• Knowledge of automation and scripting (Python, Ansible, Terraform) for firewall and network operations.
• Exposure to Zero Trust architecture and secure access frameworks.

Life at GT

Reward and benefits:

Our reward and benefits are designed to create an environment where our people can flourish. We are committed to building a culture where our people have access to the necessary benefits to help promote a healthy lifestyle and thrive.

Equity, diversity and inclusion

At Grant Thornton, we provide equitable opportunities for all our colleagues. We are a responsible, sustainable business where equity, diversity and inclusion (ED&I) is at the forefront of our workplace culture agenda, and today, we continue to build and develop on our existing ED&I structure and strategy to meet our workplace culture needs. People are at the heart of our business and teams built with varied backgrounds, racial differences, cultures, sexual orientations, religious orientations, ages, gender identities, abilities and family types present diverse viewpoints, which need to be heard and valued.

We are all at our best when we are able to be ourselves and we view integrity and authenticity as integral values to bring to our day-to-day work-life at the firm. We are excited to see the personality and perspectives you will bring to our team because we know we will all benefit from them. Diversity of thought, background and experience enables better decision-making, improves the quality of our delivery, and helps us to meet the needs of our clients. Our firm is built on people and their ideas, so we want to hear all the new perspectives and fresh thinking you have to offer. You form the bedrock of our firm's best-practice principles and we will champion you as leaders from day one.

Recognition:

We want to create a culture of recognition and celebrating success, by saying thank you to people who surpass our expectations and recognising the right values and behaviours. Our Shout Out recognition scheme is our way of highlighting and promoting achievements. Whether you simply want to say thank you, celebrate a special occasion or give an award for doing something exceptional, you can do all of this and more through the scheme.

Ergo IT Recruitment is seeking a Network Security Engineer for a long-term contract opportunity with our public sector client in Dublin . The successful candidate will harden/standardise/modernise an enterprise-level network (WAN/LAN/WLAN, perimeter, remote access) while improving resilience and supporting digital strategy and cloud‑native progression.

You should have experience in next-gen Firewall administration, network segmentation and vulnerability assessments.

What will you do?

• Current Network Assessment: Topology diagrams, IP/VLAN schema, device inventory, and configuration baseline with risk-ranked findings.
• Risk & Gap Analysis: Network-centric security risks and gaps vs best practice; prioritised remediation items.
• Firewall, switching, WLAN, NAC configuration standards; naming/IPAM standards; change-control templates.
• Remediation Plan: Sequenced plan with timelines, dependencies, and required maintenance windows.
• Playbooks & Runbooks
• Monitoring & Logging Plan
• Weekly Status Reports: Progress, risks/issues, metrics, and next steps.
• Cloud Readiness Assessment: Inventory of infrastructure, dependencies, compliance, risks, and workload readiness scoring.
• Digital strategy enablement

You should have experience in the following:

• Core Network Design & Operations (WAN / LAN / WLAN)
• Perimeter & Edge Security (Firewalls, VPN, DDoS)
• Secure Architecture & Network Segmentation
• Configuration Management & System Hardening
• Monitoring, Telemetry & Incident Response (SOC/SIEM & Threat Intel)
• Vulnerability, Patch & Platform Lifecycle Management
• Resilience, Backup & Disaster Recovery Readiness
• Cloud Foundations & Hybrid Connectivity (Azure)

Apply today for more info

This is a rare opportunity to step into a Network & Security Architect position within a leading Irish technology consultancy. You'll work directly alongside the Technical Director, shaping high-impact network and security solutions for a diverse range of enterprise customers.

The role has come about due to an internal promotion - meaning you'll be joining a high-performing team where progression is both achievable and encouraged. If you're an experienced Network Engineer or Consultant looking to take ownership of end-to-end design, pre-sales and implementation leadership, this is your next move.

You'll join a business that has established partnerships with the industry's leading vendors and is investing heavily in next-generation technologies such as CATO SD-WAN, Versa, Azure Cloud Networking, and SOC/SIEM integrations.

Responsibilities:

• Lead customer-facing architecture sessions to capture requirements and translate them into robust, scalable designs.

• Own solution design for LAN/WAN, SD-WAN, Wi-Fi, and Security projects.

• Work across pre-sales and delivery to ensure seamless execution.

• Guide junior team members and act as the escalation point for complex designs.

• Collaborate with the Technical Director to drive strategic vendor relationships and shape technical direction.

• Oversee implementations and ensure successful project outcomes.

• Contribute to proposals, HLDs, and SOWs for customer projects.

Skills / Must Have:

• Strong experience in Cisco and Palo Alto environments.

• Knowledge of SD-WAN technologies — CATO or Versa preferred.

• Hands-on with Aruba Wi-Fi and Switching.

• Exposure to Azure Cloud Networking.

• Experience with SOC/SIEM platforms.

• Proven track record in solution design, pre-sales, and customer engagement.

• Confident presenting solutions and guiding customers through technical strategy.

Benefits:

• Competitive base salary with performance-based progression.

• Vendor training and certification support.

• Pension and healthcare package.

• Collaborative, forward-thinking environment.

• Leadership exposure working directly with the Technical Director.

Salary:

€85,000 – €90,000 per annum

Location:

Based in Dublin or Limerick – 3 days a week in the office

Ergo is seeking a
Checkpoint
Network Security Engineer
for a permanent position with our market-leading networks team.

This is an exciting role where you will be responsible for the design, implementation, and ongoing support of network and security services both within Ergo and across its client environments.

We offer flexible working, pension, healthcare, educational assistance and lots of Annual Leave.

Expertise in
Firewalls
is required with an emphasis on
Checkpoint
and
Fortinet
.

This is a remote role with occasional office visits.

What will you do?

• Deliver advanced technical support to external clients, ensuring timely and effective resolution of network and security issues.
• Provide expert-level assistance to field engineers during on-site engagements.
• Serve as the primary escalation point for all support-related incidents.
• Collaborate with technology vendors to expedite issue resolution and maintain service continuity.
• Utilize internal systems for accurate tracking, logging, and management of support tickets.
• Employ network management and diagnostic tools to identify and resolve network performance issues.
• Participate in on-site activities as required, including system assessments and deployments.
• Assist in the installation, configuration, and maintenance of both Ergo's NOC infrastructure and customer-managed network services.
• Lead the delivery of customer-facing network and security projects, ensuring alignment with technical and business requirements.
• Contribute to pre-sales efforts by providing technical input, solution design, and customer engagement support.
• Develop and maintain comprehensive customer documentation, including runbooks and operational guides.
• Create and maintain technology roadmaps to guide clients' strategic infrastructure planning.
• Draft functional requirements and technical specification documents for internal and client-facing initiatives.

What do you need?

• Expertise in the installation, maintenance, and support of firewalls specifically Checkpoint and Fortinet
• Checkpoint CCSM or CCSE
• Proficient in secure connectivity technologies including VPN, IPSEC, and SSL VPN
• Comprehensive knowledge of network and security best practices.

It's nice to have the following:

• Fortinet NSE4 Certification or Fortinet Certified Professional
• Experience of firewall, switching, and routing technologies from Aruba, HPE, Cisco, and Juniper.
• Strong expertise in dynamic routing protocols such as BGP, OSPF, and EIGRP.
• Experience with Voice over IP (VoIP) implementations and troubleshooting.

Apply today for more information.

Job Title:
Network Security Solutions Architect
Location:
Dublin/Cork (Hybrid)
Job Type:
Contractor
Work Type:
Full-time (5 days/week)
Role Type:
IT / Network Security Architecture
Overview of Role
Our client is undergoing a significant digital transformation to enhance customer experience and evolve their infrastructure. The Network Security Architect will design and implement secure, resilient network solutions to support this transformation and their digital initiatives, working collaboratively across Enterprise IT Services (EITS), Group Technology, and business units.

Role & Responsibilities:

• Develop a comprehensive understanding of their network and network security configurations to enable new services and simplify the environment
• Design, implement, and maintain secure and resilient network security solutions aligned with business needs and strategic objectives
• Drive simplification and automation initiatives within the managed environment to reduce complexity and repetitive tasks
• Enable secure cloud connectivity and integration solutions
• Maintain relationships with relevant third-party vendors supporting the network security function
• Manage risk by maintaining control environments, minimising audit findings, and supporting remediation of external review findings
• Lead and promote organisational values, fostering a culture of open discussion and team collaboration
• Build and maintain productive stakeholder relationships across Group Technology, 2nd and 3rd Line teams, and business stakeholders

Skills, Qualifications & Experience

• Detailed knowledge of designing and implementing resilient network and network security solutions
• Experience building Zero Trust architecture and applying related design principles
• Familiarity with Digital Operational Resilience Act (DORA) network security compliance
• Strong understanding of network security architecture specifically for digital and retail banking environments
• Awareness of regulatory frameworks including PSD2/PSD3, DORA, PCI-DSS, and banking/payments compliance
• Strong risk management and control experience

Experience:

• Proven delivery of enterprise-class network security solutions within major transformation programmes
• Ability to take initiative and manage competing priorities effectively
• Experience collaborating with cross-functional teams to achieve business and technology goals
• 5-7+ years managing and operating network security technologies (desired)
• Knowledge of Irish and European regulatory landscape for financial services (desired)

Education & Certifications:

• Relevant IT, Cybersecurity, or Network Engineering qualifications (not explicitly listed but implied)
• Certifications related to network security or architecture (recommended but not specified)

Visa:

• Irish/EU Citizen or Stamp 4 Visa holder.

About Us
As Ireland's largest IT Solutions Provider with a growing global footprint, ergo offers deep expertise across managed IT & hardware services, cloud, applications & software services, IT resourcing, and modern work solutions. Our recent technology awards reflect our commitment to delivering industry-leading IT solutions, showcasing our team's dedication and expertise.