Windows Systems Engineer

  • Spencer Rose
  • Jul 22, 2025
Full time I.T. & Communications

Job Description

Windows Systems Engineer
Central London (4 days in office)
75,000 - 80,000 per annum + annual discretionary bonus

On behalf of a Leading hedge fund, I have an exciting opportunity for a Windows Infrastructure Engineer to make an immediate impact on challenging infrastructure projects, driving automation, security, and efficiency across the IT infrastructure in a collaborative working environment. The successful candidate will be a hands-on engineer who supports a highly available IT infrastructure.

The role requires applicants to commit to a non negotiable 4 days per week in the office.

Responsibilities:

  • Deploy and support enterprise Windows Server (Apply online only) and Microsoft 365 solutions (Entra ID, Exchange, Endpoint Manager, Teams, Conditional Access) to meet organizational needs and following best practices
  • Manage and optimise the Windows server estate, focusing on on-prem infrastructure.
  • Perform system maintenance, such as applying patches and updates to ensure availability, optimal performance and security of IT infrastructure
  • Monitor system performance and proactively identify/resolve issues
  • Maintain detailed documentation of system setup, configuration, procedures and change
  • Implement and manage security platforms including endpoint protection and patch management to protect data and shared IT infrastructure
  • Manage backup solutions to ensure data recovery and resiliency
  • Work as part of the Infrastructure and Systems Engineering team to plan and execute larger IT projects, such as system upgrades, migrations, and deployments
  • Take ownership of ongoing Windows-related projects, driving them forward and ensuring timely completion
  • Keep up to date with the latest technologies, security vulnerabilities and industry best practices
  • Ensure that systems and user activities comply with organizational policies and any relevant legal or regulatory frameworks
  • Troubleshoot and resolve system issues and outages.

Skills/Experience required:

  • The ideal candidate will have at least 5 years of applied experience as a Windows Systems Engineer with additional experience of supporting enterprise level applications based on a Windows/O365 environment.
  • Experience working in Financial Services environment is essential
  • Proven experience as a Windows System Administrator or currently in a similar role
  • Solid understanding of Active Directory Services (DNS/DHCP/FSMO/ADFS/SSO/ADCS)
  • Experience of Bloomberg/Reuters trading applications highly advantageous.
  • Solid understanding of networking concepts, including TCP/IP, LAN/WAN
  • Scripting skills desirable (eg PowerShell, Batch Scripting) for automating routine tasks and deployments
  • Strong written, oral, and interpersonal communication skills
  • Ability to troubleshoot systems issues and applications in a logical and level-headed manner.