Network Security Lead

Job description

Principal Network Security Consultant

A Global Financial Services Organisation requires a Contract Principal Network Security Consultant with deep expertise across network security architecture, WAF, F5, firewalls, network segmentation, VPNs and legacy on-prem infrastructure.

• IR35 Status: Outside
• Day Rate: Competitive
• Travel: 2 days a week in Central London Office
• Duration: Initial 6 months

Responsibilities:

• Lead the refresh of the organisation’s network security architecture and roadmap, providing senior technical direction across a complex, predominantly on-prem environment within a highly regulated banking/CNI setting.
• Provide deep network security expertise across WAF, network segmentation, firewall architecture and rule sets, VPN connectivity and legacy network infrastructure, acting as a senior consultant rather than a hands-on engineer.
• Drive the ongoing uplift of the F5 environment, with strong experience across F5 technologies essential; exposure to Palo Alto and Blue Coat is highly desirable.
• Own the refresh of network security controls, translating security architecture into practical improvements and driving measurable progress against security and risk metrics.

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

01-09-2026

Profession type

ICT

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English