Network Security Engineer

Company: Hamilton Barnes ?
Apply for the Network Security Engineer
Location: London
Job Description:

We’re partnering with a leading quantitative trading firm seeking a Network Security Engineer to help secure and enhance a complex, high-performance network environment.

This is an excellent opportunity to join a collaborative engineering team where you’ll play a key role in designing, implementing and improving security controls across critical infrastructure that supports global trading operations.

Key Responsibilities

  • Design and implement network security solutions across a hybrid environment.
  • Manage and optimise technologies including firewalls, VPNs, IDS/IPS, NDR and secure access platforms.
  • Investigate security incidents through network traffic and packet analysis.
  • Drive automation and process improvements to enhance security operations.
  • Work closely with infrastructure, security and engineering teams on strategic projects.

What We’re Looking For

  • Strong network security experience within enterprise environments.
  • Hands‑on knowledge of firewalls, VPNs, IDS/IPS, NDR and SASE technologies.
  • Scripting or automation experience (PowerShell, Python or similar).
  • Solid understanding of TCP/IP, routing, switching and the OSI model.
  • A proactive mindset with a passion for security and continuous improvement.

Why Apply?

  • Work with modern technologies in a fast‑paced trading environment.
  • Influence security strategy and technical direction.
  • Strong focus on innovation, automation and professional development.
  • Competitive salary and benefits package.

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Posted: June 23rd, 2026