Windows Security Engineer: Scale Global Endpoint Defense

Quant Capital; Greater London; On-site; GBP 70,000 - 100,000; Full time

Job summary

Quant Capital is seeking an IT Security Engineer to strengthen its global security posture within a high-performing engineering group. The role involves owning technical decisions, implementing scalable security controls across Windows platforms and driving vulnerability management initiatives.

You'll build automation for configuration, monitoring, and incident response while improving endpoint security with EDR, patching and OS hardening.

Qualifications

• Strong Windows security engineering experience.
• Hands-on with endpoint protection, EDR, scanning and patching tools.
• Knowledge of AD/Entra ID and PKI.
• High level PowerShell programming skills.
• Ability to design, implement and operate security controls at scale.

Responsibilities

• Designing and implementing security controls across Windows platforms
• Driving vulnerability management initiatives and closing out remediation at scale
• Building automation around configuration, monitoring, and incident response
• Improving endpoint security: EDR, AV, patching, OS hardening
• Working with core infrastructure (AD / Entra ID, PKI, networking)
• Investigating emerging threats and advising on technical risk
• Supporting global IT teams across a large distributed environment
• Strong Windows security engineering experience
• Solid understanding of host-based controls: application control, firewalling, logging, encryption
• Hands-on with endpoint protection, EDR, scanning and patching tools
• Experience with OS hardening, privileged access concepts, identity and security best practice
• Knowledge of common attack techniques and how to counter them
• Good grasp of Active Directory/Entra ID and PKI
• High level PowerShell programming skills
• Clear communicator, reliable, collaborative, able to influence technical decisions

Skills

Windows security

EDR

Vulnerability management

Automation

OS hardening

Active Directory

Entra ID

PKI

PowerShell

Threat detection

Incident response

Networking

Firewalling

Logging

Encryption

Job description

Quant Capital is seeking an IT Security Engineer to strengthen its global security posture within a high-performing engineering group. The role involves owning technical decisions, implementing scalable security controls across Windows platforms and driving vulnerability management initiatives.

You'll build automation for configuration, monitoring, and incident response while improving endpoint security with EDR, patching and OS hardening.