Senior Network Operations Support Engineer – freelance – hybrid, London, UK
Contract | Comgent | United Kingdom
Posted On 04/21/2026
Job Information
Standard Business working Hours Yes
Work Experience 8-10
City London
State/Province City of London
N/A
Special Considerations
We are committed to building an inclusive workplace and encourage applications from women and other under-represented groups in tech. All qualified candidates are welcome.
Start date: May/ June 2026
Location: London, UK (Hybrid — minimum 2 days per week in office)
Job Description
Reports to Head of Data Centre and Network Services.
Responsibilities:
- Provide 24/7 operational support, leading incident response, root cause analysis, and permanent remediation across enterprise and data centre networks.
- Troubleshoot complex L2–L7 issues across routing, switching, Palo Alto/ Fortinet firewalls, Cisco ACI, and hybrid cloud connectivity.
- Manage network and firewall changes end-to-end, including risk assessment, rollback planning, and documentation.
- Monitor and optimise network health, capacity, and performance; drive continuous improvement of tooling, dashboards, and automation.
- Collaborate with engineering, architecture, and cybersecurity teams to support new deployments and enforce security standards.
- Maintain operational documentation, ensure regulatory compliance, and report on availability metrics and KPIs.
- Coordinate with vendors, telcos, and internal stakeholders on fault resolution and SLA management.
Requirements
8–12+ years in enterprise/data centre network operations.
Hands‑on experience with Cisco ACI, Palo Alto (Panorama), and Fortinet (FortiManager/FortiAnalyzer).
Python and Ansible automation skills for operational workflows and API‑driven tasks.
Familiarity with AWS/Azure networking and hybrid cloud environments.
Experience in regulated industries with strong change governance and compliance practices.
Clear communicator with solid documentation and cross‑team collaboration skills.
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