Information Security

Windows Security Engineer – Quant Trading

Quant Capital

London · Greater London · United Kingdom

Overview

In questa role you will secure Windows platforms for a leading quantitative trading firm. You’ll design, test and implement security controls while guiding the Windows team and collaborating with the Cybersecurity group. The role combines hands-on security work with policy development in a demanding, agile environment. You’ll operate in a globally distributed, tech-driven firm with a strong emphasis on innovation and continuous learning. This is a high-impact position with significant technical scope and growth potential.

Responsibilities
  • Design, test and implement security controls for Windows environments
  • Provide guidance, support and escalation to the Windows team
  • Collaborate closely with the Cybersecurity team on security initiatives
  • Hands-on administration of core Windows infrastructure (AD, PKI, SQL) and monitoring/performance tuning
  • Develop guidelines, standards and procedures for IT security policy
Key requirements
  • Degree from a top institution
  • Extensive experience securing Windows platforms
  • Knowledge of Windows vulnerabilities, mitigations, and OS hardening
  • Experience with log aggregation and query methods
  • Hands-on experience with Active Directory, PKI, and SQL
  • Ability to deliver solutions for complex problems
  • Good hands-on experience in agile, small-team environments
  • Powershell experience is a bonus
  • delivery mindset with focus on practical solutions
  • aptitude for working in fast-changing environments
  • hands-on, can-do attitude
  • Windows platform security
  • OS hardening and best practices
  • log aggregation and querying

Reference: WJ-747_31188806 · Posted 01 Nov 2026

Find more on GigBlows

This role is listed on GigBlows for discovery and search. Hiring decisions and applications are handled by the employer or their chosen application system.