Network Security Engineer - Financial Org

Hamilton Barnes Associates Limited; Greater London; On-site; GBP 100,000 - 120,000; Full time

Job summary

A leading global quant trading firm seeks a Network Security Engineer in London. The role requires expertise in network security architecture and Cisco ISE, focusing on high-impact projects that secure industry-leading trading infrastructure. Join a dynamic environment that values innovation and proactive contributions.

Qualifications

• Proven experience in network security architecture, implementation, and support.
• Expertise in designing and supporting Cisco ISE.
• Strong understanding of TCP, UDP, IP, and the OSI Model.

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.

Skills

Network security architecture

Python

Firewalls

Client VPNs

Intrusion prevention systems (IPS)

Networking principles

Tools

Cisco ISE

Linux

Job description

Do you want to work for a global quant trading firm?

You will be working with an organisation that is known for the quickest and most technologically advanced infrastructure in the world. You will work with people that are passionate about their work, there are no siloes and you will be encouraged to be proactive and throw yourself in the deep end of tech.

Within this role, you will report to the Head of security. You will play a senior role within the London network security team responsible for managing the entire infrastructure and networks. You will be able to bring your expertise to the table and work in a shared engineering environment.

This is a fantastic opportunity to join a cutting-edge trading and technology firm that pushes the boundaries of innovation in global markets and offers an environment where a Network Security Engineer can thrive. You'll have the opportunity to work on high-impact projects, protecting the infrastructure that powers industry-leading trading strategies.

If you're passionate about security and want to contribute to a company at the forefront of both finance and technology, this role offers the perfect blend of challenge and opportunity

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

Must Haves:

• Proven experience in network security architecture, implementation, and support.
• Expertise in designing and supporting Cisco ISE.
• Knowledge of scripting and coding languages, particularly Python.
• Strong knowledge of firewalls, client VPNs, and intrusion prevention systems (IPS).
• Comprehensive understanding of networking principles, including TCP, UDP, IP, the OSI Model, and Layers 1, 2, and 3.
• Commitment to high-quality work with a focus on continuous improvement.

Nice to Haves:

• Linux

Salary/Day Rate:

• Up to £120,000 + 20% bonus

Location:

• London (Liverpool Street) 3x per week