Principal Security & Systems Engineer – Windows, Automation, Endpoint Security

London – Hybrid

Industry Leading Compensation

Quant Capital is partnered with a leading trading firm looking to hire a Senior IT Security Engineer to strengthen its global security posture. This sits within a high-performing engineering group and suits someone who can take ownership, make clear technical decisions and build security controls that scale.

You will work across Windows engineering, endpoint security, automation, vulnerability management and platform hardening. The role mixes hands‑on engineering with advisory responsibility and proactive threat mitigation. The environment is fast moving and technically demanding, and you will be the person wider IT teams rely on for clarity and sound judgement.

What you’ll be doing:

• Designing and implementing security controls across Windows platforms
• Driving vulnerability management i...