Principal Security Engineer

Company: Durlston Partners
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Job Description:

Principal Security Engineer (Hands-On) – Proprietary Trading

Overview

We’re hiring a highly hands-on Principal Security Engineer to take ownership of security across a cloud-first environment. This is a senior individual contributor role, focused on building and implementing security controls — not managing teams.

Core Focus

  • IAM Ownership – design and implement scalable, secure access frameworks
  • Security Controls – build and enforce controls across cloud environments
  • Hands-On Engineering – automate and deliver security solutions end-to-end

What You’ll Do

  • Design and implement IAM architectures across AWS and Azure
  • Build and maintain cloud-native security controls
  • Secure CI/CD pipelines and development workflows

What We’re Looking For

  • Strong hands-on security engineering background
  • Deep expertise in IAM and cloud security
  • Experience securing CI/CD environments
  • Strong scripting or software engineering capability
  • Comfortable operating as a senior, standalone security lead

Why This Role

  • Full ownership of security in a high-impact environment
  • Deeply technical, engineering-led culture
  • Opportunity to build and shape security from the ground up

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Posted: April 17th, 2026