Senior Network Engineer - Cisco, Software Defined Training

Job Title: Senior Network Engineer (Network & Security Operations)
Location:Hybrid London (Onsite 3 days per week)
Type: Full-Time, Permanent
Salary: £60,000 + Benefits

We are seeking an experienced Senior Network Engineer to join a growing network operations team, providing senior-level support across complex enterprise network and security environments. This role is focused on BAU support, troubleshooting, and operational stability, supporting critical customer infrastructure.

You will act as a senior escalation point within the team, supporting secure, resilient LAN, WLAN, and network security platforms, while helping to drive service quality and continuous improvement.

What Youll Be Doing

As a senior technical specialist within the network operations function, youll be responsible for maintaining, supporting, and optimising live enterprise networks and security platforms.

Key responsibilities include:

• Providing 3rd-line support and escalation for complex network and security incidents
• Supporting and maintaining Cisco Security technologies, including:

• ASA, FirePOWER, FTD & FMC
• Cisco ISE (NAC, identity and policy enforcement)
• Cisco Umbrella
• Cisco DNA Center (DNAC)

What Youll Bring

Required Experience & Skills:

• 5+ years experience supporting enterprise network and security environments
• Strong hands-on experience with Cisco Enterprise Networking Technologies.
• Strong enterprise networking experience across LAN and routing/switching
• Experience operating as a senior / 3rd-line engineer
• Excellent troubleshooting and problem-solving skills

Nice to Have:

• Exposure to Cisco Software Defined technologies, SD Access, ACI, Nexus etc. (Training will be provided)
• Exposure to network monitoring and management tools
• Cisco certifications (CCNP Enterprise, CCNP Security or equivalent)
• Experience within managed services or enterprise operations teams

What Youre Like

• Operationally focused and calm under pressure
• Customer- and service-driven, with a strong uptime mindset
• Clear communicator with strong documentation habits
• Detail-oriented and proactive
• Enjoys mentoring and supporting team development

Why Join Us?

Youll be joining a collaborative, operations-focused team responsible for mission-critical enterprise networks, working with modern Cisco networking and security technologies. The role offers long-term technical growth, stability, and the flexibility of a fully home-based position.