Network Security Engineer - Banking & Finance

Hamilton Barnes Associates Limited; Greater London; Hybrid; GBP 105,000 - 175,000; Full time

Job summary

Hamilton Barnes Associates Limited in London is seeking a senior Network Security professional to join a fast‑moving technology and risk management environment. Reporting to the Head of Security, you will lead infrastructure and network security efforts within the London network security team and collaborate with engineering colleagues.

You will design, implement, and maintain Cisco ISE, automate security operations, gather requirements, and support the global infrastructure while delivering

Qualifications

• Network security architecture, implementation & support.
• Cisco ISE - Design & Deploy.
• Networking Fundamentals - TCP/IP - Layer 1,2,3.
• Python scripting - Basic level.

Responsibilities

• Lead role with the network security team for London.
• Gather requirements, implement solutions and support the global infrastructure.
• Design, configure and maintain Cisco ISE.
• Automate security operational tasks.

Skills

Network security architecture

Cisco ISE - Design & Deploy

Networking Fundamentals - TCP/IP - LTE

Python scripting - Basic level

Linux

Job description

Are you looking for an exciting new opportunity?

Join a global trading firm leveraging technology, research, and risk management to identify and capture trading and investment opportunities across markets worldwide. The organization operates across diverse asset classes and combines the innovation of a startup with the stability of an established firm, fostering continuous learning, collaboration, and problem-solving.

This opportunity is ideal for a senior Network Security professional looking to join an organisation known for its fast and advanced technology infrastructure. Reporting to the Head of Security, this role involves managing infrastructure and networks within the London network security team, while working in a collaborative engineering environment where you can contribute expertise, take ownership of complex challenges, and work alongside passionate technology teams.

Responsibilities:

• Play the lead role with the network security team for London
• Gather requirements , implement solutions and support the global infrastructure
• Design configure and maintain Cisco ISE
• Automate security operational tasks

Skills/Must Have:

• Network security architecture, implementation & support
• Cisco ISE - Design & Deploy
• Networking Fundamentals - TCP/IP - Layer 1,2,3
• Python scripting - Basic level

Desirable Skills:

• Linux

Location:

• London (Hybrid)

Salary:

• Up to £175,000 total comp