About Us
Viatel Technology Group is a complete Business Communications and Digital Services provider. We provide fully managed security, networking, cloud and communications services to a wide range of clients across a variety of business sectors. Our Culture ensures a work environment where everyone can contribute equally and reach their full potential.
Job Purpose
The Network Security Engineer will be responsible for the design, implementation, support, and troubleshooting of network security solutions f or customers primari ly using Palo Alto Networks, Fortinet, Check Point, and Juniper security products within our Cyber division. The role involves working as part of a technical team delivering security projects, operational support, and security improvements across multiple customer environments.
Key Responsibilities
Design, implement, and support network security solutions across customer environments.
Configure, manage, and troubleshoot Palo Alto, Fortinet, Check Point, and Juniper firewalls.
Perform firewall rule reviews, policy optimisation, and security hardening.
Support VPN technologies including IPsec and SSL VPN.
Assist with network security incidents and troubleshooting.
Work with customers to gather requirements and implement security solutions.
Participate in change management processes.
Produce technical documentation and network diagrams.
Provide 2nd/3rd line support for network security issues.
Work collaboratively within a team supporting multiple customers.
Required Skills and Experience
Experience with Palo Alto Networks, Fortinet, F5, Check Point, and Juniper SRX firewalls.
Strong networking knowledge (TCP/IP, VLANs, NAT, routing, VPNs).
Troubleshooting complex network and firewall issues.
Experience in customer-facing or managed services environments.
Knowledge of network security principles and best practices.
Good documentation and communication skills.
Certifications (Desirable)
Palo Alto PCNSE
Fortinet NSE4/NSE7
Check Point CCSA/CCSE
Juniper JNCIA/JNCIS Security
CompTIA Security+
Personal Attributes
Strong problem-solving skills
Ability to work independently and in a team
Good communication skills
Attention to detail
Ability to manage multiple tasks
Benefits
Pension Scheme
Healthcare Spending Plan
Employee Assistance Programme
Employee Referral Scheme
Extra Holiday Purchase
Enhanced Family Leave
Sick Leave
Summer Flextime
Closing Date
17/07/2026
Location
Belfast/Hybrid
Department
Cyber Security
Job Title
Network Security Engineer
City
Belfast
