At a Glance
- Tasks: Design and implement security controls while driving vulnerability management initiatives.
- Company: Leading trading firm with a high-performing engineering group.
- Benefits: Industry-leading compensation, hybrid work model, and opportunities for professional growth.
- Other info: Join a dynamic team where your expertise will make a real impact.
- Why this job: Take ownership and solve complex security challenges in a fast-paced environment.
- Qualifications: Strong Windows security experience and hands-on skills in EDR and OS hardening.
The predicted salary is between 63000 - 77000 £ per year.
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 initiatives and closing remediation at scale Building automation around configuration, monitoring and incident response Improving endpoint security across EDR, AV, patching and OS hardening Working with core infrastructure including AD / Entra ID, PKI and networking Monitoring emerging threats and advising on technical risk Supporting global IT teams in a large distributed environment What you’ll need: Strong Windows security engineering experience Solid understanding of host-based controls: application control, firewalling, logging, encryption Hands-on experience with EDR, endpoint protection, scanning and patching Background in OS hardening, privileged access and security best practice Knowledge of common attack techniques and the controls that mitigate them Good grasp of Active Directory / Entra ID and PKIHigh-level Power Shell scripting skills Clear communicator who can influence, collaborate and take ownership This role suits someone who wants meaningful responsibility, enjoys working under pressure and can solve complex security problems across a global environment.
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Principal Security & Systems Engineer – Quant Trading employer: Quant Capital
Quant Capital is an excellent employer for those looking to thrive in the fintech sector, offering a vibrant work culture that fosters innovation and collaboration. With substantial training and development opportunities, employees can enhance their skills while enjoying a flexible hybrid work model in the heart of London. Join us to be part of a forward-thinking team that values growth and cutting-edge technology.
