Network Engineer (Firewall Specialist)Location: Hybrid - Belfast City Centre Salary: £50,000 - £60,000 About the RoleWe're working with a well-established local IT consultancy based in Belfast City Centre that is continuing to grow its network and security practice. They are seeking an experienced Network Engineer with a strong focus on firewall technologies and network security to join their technical team. This role will suit someone who enjoys working across multiple client environments, taking ownership of firewall design, deployment, and ongoing optimisation, while also contributing to wider network infrastructure projects. Key ResponsibilitiesDesign, implement, and support enterprise-grade firewall solutions across client environments Manage firewall configuration, rule reviews, policy optimisation, and upgrades Troubleshoot complex network and security issues across LAN, WAN, and VPN environments Lead and support firewall migrations, upgrades, and security hardening projects Work closely with clients to understand requirements and deliver secure, scalable solutions Provide 3rd-line support and act as a technical escalation point Produce clear technical documentation and network diagrams Contribute to security best practice, standards, and continuous improvement initiatives Technical RequirementsEssential: Strong hands-on experience with enterprise firewall platforms (e.g. Palo Alto, Fortinet, Check Point, Cisco ASA/Firepower) Solid networking fundamentals: TCP/IP, VLANs, routing, switching, NAT Experience with VPN technologies (site-to-site and remote access) Proven background in network security and firewall policy management Experience working in a consultancy or multi-client environment Desirable: Firewall or network security certifications (e.g. PCNSE, NSE4, CCNP Security) Exposure to cloud networking and cloud-native firewalls (Azure/AWS) IDS/IPS, web filtering, or zero-trust security concepts Experience with network monitoring and logging tools What's on OfferSalary between £50k - £60k, depending on experience Hybrid working model with a Belfast City Centre office Opportunity to work on varied, technically interesting client projects Supportive consultancy environment with room for progression Ongoing training and certification support Flexible working Ideal CandidateYou'll be a technically strong Network Engineer who specialises in firewall technologies, enjoys solving complex security challenges, and is comfortable engaging directly with clients. You'll value best practice, documentation, and continuous learning in a fast-paced consultancy setting. To speak in absolute confidence about this opportunity please send an up-to-date CV via the link provided or contact Senior Recruitment Consultant Stuart Kennedy at MCS Group on 02896935520 or s.kennedy@mcsgroup.jobs. Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current jobs.