Network Cisco Specialist - 3rd Line

83zero Ltd

📍 Farringdon, Greater London, United Kingdom

Full-time computer-and-mathematical Posted June 16, 2026

Job Description

Network Cisco Specialist - 3rd Line

Base: £90,000 base salary plus benefits, perks, healthcare options and 5% on call allowance
Location: Hybrid / Client Base in London
Type: Permanent

We're looking for an experienced Network Cisco Specialist (3rd Line) to join a high-performing Network Operations team, providing expert support across enterprise Cisco networking and security environments.

This role will see you taking ownership of complex incidents and changes, acting as a senior escalation point, supporting major projects, and serving as a technical SME across key Cisco technologies.

Key Responsibilities

Own complex faults and changes through to resolution.
Escalation point for 2nd Line engineers.
Support customer and vendor engagements.
Perform root cause analysis and problem management.
Deliver network and security projects.
Manage firmware upgrades, documentation, and DR testing.
Mentor colleagues and contribute to techn...