Senior Network & Security Engineer (Level 3)
Location: Dublin, Cork, or Limerick, Ireland
Type: Full-Time | Permanent
Overview
An opportunity has arisen for an experienced Senior Network & Security Engineer (Level 3) to join a growing and dynamic team. This is a hands‑on role combining project delivery, advanced technical support and presales consultancy across modern networking and security technologies.
The position suits a candidate with strong expertise in enterprise firewall technologies and SASE platforms, alongside a proven ability to design, implement and support complex solutions.
Key Responsibilities
Project Delivery
Design, configure and implement secure network and security solutions
Lead deployments of firewalls, VPNs and SASE platforms across client environments
Ensure solutions are scalable, high‑performing and compliant with best practices
Support & Operations
Act as the Level 3 escalation point for complex technical issues
Perform proactive monitoring, troubleshooting and optimisation of security infrastructure
Conduct root‑cause analysis and produce detailed post‑incident reports
Support sales teams with technical scoping, solution design and proposals
Participate in client meetings, workshops and technical presentations
Provide guidance on emerging networking and security trends
Work closely with internal teams, vendors and stakeholders
Mentor junior engineers and contribute to knowledge sharing
Stay up to date with new technologies, certifications and product developments
Minimum 5 years’ experience in network and security engineering
Qualifications
Degree in Computer Science, IT or a related field (or equivalent experience)
Industry certifications highly advantageous
Hands‑on expertise with:
Fortinet
SonicWall firewalls
Strong knowledge of SASE platforms (e.g., Cato Networks, Versa)
Solid understanding of:
Routing & switching
VPN technologies
SD‑WAN
Strong troubleshooting skills with ability to act as final escalation point
Presales or consultancy experience in enterprise or MSP environments
Exposure to SIEM, SOC or endpoint security solutions
Relevant certifications (e.g., PCNSE, NSE4/7, CCNP Security, SASE certifications)
Experience with Azure or AWS networking/security
What's on Offer
Competitive salary and benefits package
Exposure to cutting‑edge networking and security technologies
Ongoing training and certification support
Collaborative and innovative working environment
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