Windows Security Engineer

Caxton Associates is seeking a Windows Security Engineer to join the Systems and Infrastructure team. The role will be focused on hardening, monitoring, and improving security across endpoints, servers, identity systems, and supporting infrastructure.

Requirements

• Manage and optimize Microsoft Defender, EDR/XDR tooling, vulnerability scanners, and patching processes.
• Implement and maintain Windows security controls (Group policy, baseline hardening, endpoint protection, logging).
• Continuously improve the core security controls that protect Windows systems across the organization.
• Monitor security alerts, investigate incidents, and assist with remediation.
• Support and improve identity and access management (Active Directory, Azure AD, conditional access, MFA).
• Perform regular security assessments, configuration reviews, and compliance checks.
• Develop and maintain security documentation, playbooks, and automation scripts (PowerShell / Python).
• Collaborate on architecture reviews and secure deployments.

Benefits

• Competitive salary
• Benefits package
• Opportunity to work with a global trading and investment firm