Security Engineer

Company: Radley James
Apply for the Security Engineer
Location: London
Job Description:

A newly launched, technology-driven hedge fund is looking for a Security Engineer to help build its security function from the ground up.

This is a genuine greenfield opportunity where you’ll have significant ownership over the firm’s security architecture, tooling, and processes from day one. Working closely with senior leadership, you’ll play a key role in establishing a modern security programme in a highly technical environment.

Key focus areas:

  • Build and own detection & response capabilities, including alerting, threat detection, canaries, and honeypots.
  • Design and implement security controls across cloud, infrastructure, and application environments.
  • Develop authentication, authorisation, identity, and certificate management frameworks.
  • Partner with engineering teams to embed security throughout the development lifecycle.
  • Shape the firm’s long-term security architecture and strategy as the platform scales.
  • Strong Security Engineering, Detection Engineering, Blue Team, or Cloud Security experience.
  • Hands‑on expertise with threat detection, monitoring, and incident response.
  • Experience securing modern cloud environments.
  • Knowledge of IAM, authentication, authorisation, and PKI.
  • Someone who enjoys building systems from scratch and taking ownership of critical security initiatives.

A rare chance to join a hedge fund at inception and define the security foundations of the business rather than inheriting legacy infrastructure.

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Posted: July 13th, 2026