Senior Windows Engineer

Job description

Head of Windows Engineering / London or New York

• Fed up with legacy technical debt?
• An active directory that is like the back of the office fridge (stuff in there from years ago, nobody knows who it belongs to or is brave enough to chuck away).
• A desire to build rather than maintain
• Or maybe you’ve sorted out all the problems and need a new challenge

If so, this role is for you. We are working with a systematic hedge fund seeking a Lead Windows Engineer to design and build the organisation’s Windows infrastructure from the ground up.

This is a rare opportunity to own the Windows platform architecture and play a key role in designing and implementing the core infrastructure that supports trading, research and operations systems.

You will lead the development of a secure, scalable and highly automated Windows environment, spanning on-premise and cloud infrastructure.

Responsibilities

• Lead the architecture, implementation and ongoing management of enterprise Windows infrastructure
• Design and deploy core services including Active Directory, identity management and enterprise authentication
• Build and maintain the firm’s Windows Server environment across on-prem and cloud platforms
• Develop automation frameworks using PowerShell and infrastructure-as-code tooling
• Implement security controls, patching, monitoring and configuration management
• Partner with engineering, trading, operations and security teams to deliver a reliable platform
• Integrate infrastructure with trading systems, internal applications and external vendors
• Define infrastructure standards, documentation and operational best practices
• Infrastructure engineers are responsible for designing and maintaining the foundational systems that support business operations and applications across the organisation.

Requirements

• Extensive experience in enterprise Windows infrastructure engineering
• Strong expertise with Windows Server environments and enterprise architecture
• Deep knowledge of Active Directory, identity services and Group Policy
• Experience managing authentication and directory services that control access across corporate systems.
• Strong scripting and automation skills using PowerShell
• Experience supporting virtualisation platforms (VMware / Hyper-V) and hybrid infrastructure
• Exposure to cloud platforms such as Azure or AWS
• Experience implementing monitoring, patching and configuration management frameworks
• Strong troubleshooting skills across complex enterprise systems
• Experience in hedge funds, trading firms or financial services environments is highly desirable.

Get in touch

This is an amazing opportunity to build a new windows infrastructure within a technology driven firm. This is a high visibility role working across the technology organisation at the intersection of engineering, security and trading technology. Very competitive compensation and long-term growth potential.

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full-time jobs

Published at

20-03-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English