Senior Network Engineer

The Role

We are seeking an experienced Senior Network Engineer to join a technical infrastructure team on an initial 3-month contract, supporting a busy operational environment in Belfast.

The successful candidate will provide hands-on support across BAU network operations, while also assisting with ongoing network infrastructure and project delivery.

This is an excellent opportunity for a technically strong Network Engineer with proven experience across both Fortinet and Cisco technologies.

Key Responsibilities

• Provide senior-level support across enterprise network infrastructure and BAU operations.
• Configure, troubleshoot and maintain Fortinet network technologies, with particular focus on routing, switching and wireless.
• Support and troubleshoot Cisco routing and switching environments.
• Assist with Cisco Software-Defined Access (SDA) and Cisco Identity Services Engine (ISE).
• Support enterprise wireless infrastructure across Fortinet and Cisco environments.
• Investigate and resolve complex network incidents and performance issues.
• Assist with network changes, upgrades, migrations and project delivery.
• Work closely with internal technical teams to ensure network availability, performance and security.
• Produce and maintain technical documentation relating to network infrastructure and changes.
• Provide hands-on technical expertise across both operational support and project activities.

Key Skills & Experience

• Cisco Strong commercial experience as a Senior Network Engineer or similar.
• Extensive hands-on experience with Fortinet technologies.
• Strong knowledge of Fortinet routing, switching and wireless.
• Fortinet certification at NSE 4-5 level or equivalent hands-on experience.
• Strong Cisco networking experience.
• Cisco certification at CCNP/CCIE level or equivalent practical experience.
• Experience with Cisco routing and switching.
• Experience with Cisco SDA.
• Experience with Cisco ISE.
• Strong enterprise wireless networking experience.
• Excellent troubleshooting and problem-solving skills.
• Comfortable working across both BAU support and project delivery environments.