Network Security Engineer – Fortinet | eir Business Talent | Dublin City

eir Business Talent; Dublin; Hybrid; EUR 96,000 - 152,000; Full time

Job summary

eir Business Talent in Dublin City is seeking an experienced Network Security Engineer specializing in Fortinet to join an immediate day-rate contract on a hybrid model (min. 3 days on-site).

You will administer Fortinet/FortiGate firewalls, Fortinet Proxy, and BAU security operations to ensure high availability and threat protection. The role requires 5+ years in network security, a relevant degree, strong English communication, and the ability to document configurations and incident response.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, Telecommunications Engineering, or a related discipline.
• Minimum of 5+ years of progressive professional experience in network security engineering, firewall administration, and IT infrastructure.
• Strong, demonstrable hands-on professional expertise in Fortinet/FortiGate firewalls and security appliance management.
• Comprehensive working knowledge and practical proficiency in Fortinet Proxy administration and secure web gateway configuration.
• Deep practical experience in BAU network security operations, administration, and incident response.
• Solid practical experience in firewall rule lifecycle management, NAT configurations, and VPN connectivity.
• Excellent written and verbal English communication skills with strong technical documentation and collaboration abilities.
• Mandatory legal work eligibility and physical availability for an immediate day-rate contract on a hybrid model (min. 3 days on-site) in Dublin City.

Responsibilities

• Administer, configure, tune, and maintain enterprise Fortinet/FortiGate firewalls and security appliances.
• Manage Fortinet Proxy services, web filtering policies, and secure web gateway architectures.
• Execute BAU network security administration, firewall rule optimization, and access control governance.
• Monitor network security event logs, analyze traffic anomalies, and investigate potential security breaches.
• Implement and maintain IPS, VPNs, and perimeter defenses.
• Collaborate with cross-functional IT infrastructure, network engineering, and cybersecurity squads.
• Participate in security audits, vulnerability assessments, and remediation tracking workflows.
• Maintain technical documentation of firewall configurations, network diagrams, and runbooks.

Skills

Fortinet/FortiGate

BAU security operations

Firewall rule lifecycle

VPN connectivity

English communication

Education

Bachelor’s degree in Computer Science, IT, Cybersecurity or related

Tools

Fortinet FortiGate

Fortinet Proxy

IPS

SIEM

ISE

Job description

Position Summary

eir Business Talent is actively seeking an experienced, high-caliber, and technical Network Security Engineer specializing in Fortinet solutions to join our client project on an immediate day-rate contract basis on a hybrid model (minimum 3 days on-site) in Dublin City. In this critical network security and infrastructure operations role, you will be responsible for administering enterprise firewalls, managing Fortinet security appliances, and ensuring uncompromised network availability and threat protection. You will leverage your deep specialist expertise in Fortinet/FortiGate, Fortinet Proxy, BAU network security administration, and firewall management to deliver operational excellence and robust information security. This opportunity offers competitive daily remuneration, executive technical visibility, and exceptional career growth prospects within a premier global telecommunications and enterprise IT consulting enterprise.

Detailed Job Description

As a Network Security Engineer supporting eir Business Talent in Dublin City, you will take full operational, tactical, and technical ownership of enterprise network security, Fortinet firewall administration, proxy configurations, and business-as-usual (BAU) security operations. Your day-to-day responsibilities include designing, deploying, configuring, and maintaining Fortinet/FortiGate firewalls, security gateways, and Fortinet Proxy systems across complex hybrid infrastructures, executing day-to-day BAU network security administration, access control reviews, and firewall rule management, monitoring network security event logs, threat alerts, and traffic anomalies to ensure rigorous compliance with enterprise security baselines, collaborating closely with cross-functional IT infrastructure, systems engineering, and client stakeholder squads, implementing intrusion prevention systems (IPS) and managing identity services, preparing comprehensive technical documentation of network security topologies, firewall rule bases, and incident response runbooks, and managing application requirements. You will utilize your proactive troubleshooting and analytical problem-solving skills to resolve complex security and connectivity anomalies under strict operational SLAs. Furthermore, you will manage application requirements ensuring strict compliance with the immediate day-rate contract model and Dublin City hybrid presence.

Key Responsibilities

• Administer, configure, tune, and maintain enterprise Fortinet/FortiGate firewalls and security appliances.
• Manage Fortinet Proxy services, web filtering policies, and secure web gateway architectures.
• Execute business-as-usual (BAU) network security administration, firewall rule optimization, and access control governance.
• Monitor network security event logs, analyze traffic anomalies, and investigate potential security breaches.
• Implement and maintain robust intrusion prevention systems (IPS), VPN tunnels, and perimeter defense mechanisms.
• Collaborate seamlessly with cross-functional IT infrastructure, network engineering, and cybersecurity squads.
• Participate in security audits, vulnerability assessments, and remediation tracking workflows.
• Maintain accurate, comprehensive technical documentation of firewall configurations, network diagrams, and operational runbooks.

Required Qualifications & Skills

• Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, Telecommunications Engineering, or a related discipline.
• Minimum of 5+ years of progressive professional experience in network security engineering, firewall administration, and IT infrastructure.
• Strong, demonstrable hands‑on professional expertise in Fortinet/FortiGate firewalls and security appliance management.
• Comprehensive working knowledge and practical proficiency in Fortinet Proxy administration and secure web gateway configuration.
• Deep practical experience in business-as-usual (BAU) network security operations, administration, and incident response.
• Solid practical experience in firewall rule lifecycle management, NAT configurations, and VPN connectivity.
• Exceptional analytical, troubleshooting, debugging, and problem-solving capabilities under high-pressure conditions.
• Excellent written and verbal English communication skills with strong technical documentation and collaboration abilities.
• Mandatory legal work eligibility and physical availability for an immediate day-rate contract on a hybrid model (min. 3 days on-site) in Dublin City.

Nice-to-Have Skills

• Professional certifications such as Fortinet Certified Professional (FCP) in Network Security, FortiGate Administrator (FCA), or Certified Information Systems Security Professional (CISSP).
• Prior professional working experience in top‑tier telecommunications service providers, financial institutions, or managed security service providers (MSSPs).
• Hands‑on familiarity with Intrusion Prevention Systems (IPS), Cisco Identity Services Engine (ISE), and Cisco Routing & Switching (R&S).
• Experience utilizing enterprise network monitoring and security information and event management (SIEM) tools.
• Exposure to cloud security architectures (AWS, Azure) and zero‑trust network access frameworks.

Job Details

• Salary/Rate: Lucrative Day Rate Contract / Enterprise Security Package
• Deadline: Open until filled (Immediate Dublin Hybrid Day Rate Contract Opening)
• Notice Period: Immediate / Available to Start ASAP
• Contract Duration: Contract Engagement / Day Rate / Hybrid (Dublin City, Ireland)
• Company Website: https://www.eirbusiness.ie

Recruitment Pro Tip

• When applying for this Network Security Engineer position through eir Business Talent, ensure your resume explicitly highlights your hands‑on Fortinet/FortiGate and proxy administration portfolio, details your firewall management experience, and confirms your availability for immediate hybrid contracting in Dublin City.