Windows Security Engineer

Caxton Associates LP.; Bengaluru; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

A global trading and investment firm is seeking a Windows Security Engineer to join their Systems and Infrastructure team in Bangalore. The ideal candidate will have strong expertise in Windows OS internals, Active Directory, and EDR platforms. Responsibilities include managing security tools, improving security controls, and investigating security incidents. With at least 5 years in a similar role, the candidate should also demonstrate proficiency in PowerShell and have a deep understanding of network security fundamentals. This position offers an opportunity to enhance global trading operations from a new office in India.

Qualifications

• At least 5 years’ experience in a similar role.
• Strong knowledge of vulnerability management and patching tools.
• Experience with deployment and support of Enterprise Windows systems.

Responsibilities

• Manage and optimize Microsoft Defender and EDR/XDR tooling.
• Implement and maintain Windows security controls.
• Monitor security alerts and investigate incidents.
• 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.

Skills

Windows OS internals

Active Directory

Group Policy

EDR platforms

PowerShell

Python

Network security fundamentals

Azure security controls

Tools

Microsoft Defender

SIEM tools

security monitoring tools

Patch management tools

Azure AD

Job description

Role Title: Windows Security Engineer (Systems and Infrastructure team)

Department: Technology

Location: Bangalore

About Caxton Associates

Caxton Associates, founded in 1983, is a global trading and investment firm with offices in New York, London, Singapore, Monaco and Dubai, and launching Bangalore in 2026. Caxton Associates’ primary business is to manage client and proprietary capital through global macro hedge fund strategies. As part of our continued growth, we are establishing a new office in Bangalore, India. This office will play a critical role in supporting our trading, research, and operations globally.

About the role

We are 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.

The successful candidate will play a key role in the Systems and Infrastructure team, contributing to the operational efficiency, reliability, and security of our Windows infrastructure.

Responsibilities

• 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.

Experience

• Strong knowledge of Windows OS internals, Active Directory, Group Policy, and Windows security baselines
• At least 5 years’ experience working in a similar role
• Experience with EDR platforms, SIEM tools, and security monitoring
• Automation using PowerShell (and/or Python)
• Deploy and support Enterprise Windows systems and third-party applications
• Familiarity with vulnerability management and patching tools
• Understanding of network security fundamentals (firewalls, DNS, TLS, authentication flows)
• Exposure to Azure security controls (Defender for Cloud, conditional access, identity protection)
• Ability to investigate systems issues and applications as required.
• Highly self-motivated and directed, with keen attention to detail.
• Proven analytical and creative problem-solving abilities.
• Communicates clearly and works well cross-functionally.
• Operates with the highest degree of ethics and integrity.

The following would be highly beneficial

• Experience with Intune
• Knowledge of AWS Infrastructure
• Understanding of Zero Trust principles