Senior Infrastructure Engineer (Network Focus)

Mondrian Alpha; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading hedge fund in the UK is seeking a Senior Infrastructure Engineer to design, implement, and manage modern infrastructure services. The role involves hands-on work with Microsoft technologies and core network infrastructure, ensuring reliable trading platforms. Ideal candidates should possess strong TCP/IP networking knowledge, scripting skills (PowerShell/Python), and experience with cloud infrastructure and M365. A competitive salary and excellent benefits are offered in a collaborative environment.

Benefits

Competitive package

Excellent benefits

Collaborative environment

Qualifications

• Proven scripting/automation skills using PowerShell or Python.
• Experience delivering cloud infrastructure (IaaS) and M365 migrations.
• Strong TCP/IP networking fundamentals essential.
• Proficiency with Conditional Access and CI/CD pipelines required.

Responsibilities

• Design and manage modern infrastructure services.
• Partner with Information Security to ensure reliable trading platforms.
• Contribute to service design and drive automation.
• Manage core network infrastructure spanning LAN/WAN, Wi-Fi and firewalls.

Skills

TCP/IP networking fundamentals

Scripting/Automation skills (PowerShell or Python)

Cloud infrastructure delivery (IaaS)

M365 deployments/migrations

CI/CD pipelines

Infrastructure-as-Code (e.g., Terraform)

Exchange Online/Server

Teams

SharePoint

OneDrive

Windows 365/AVD

Ansible or Puppet

Job description

My client, a leading hedge fund, is seeking a Senior Infrastructure Engineer to join their in-house engineering team.

This individual will be responsible for designing, implementing, securing, and managing modern infrastructure services - partnering closely with Information Security and Support to deliver reliable trading platforms across the enterprise.

This is an opportunity to work hands‑on with the latest Microsoft technologies - as well as core network infrastructure spanning LAN/WAN, Wi‑Fi, firewalls, and cloud connectivity. You’ll contribute to service design and drive automation.

The ideal candidate should bring strong TCP/IP networking fundamentals, proven scripting/automation skills (PowerShell or Python), and experience delivering cloud infrastructure (IaaS) and M365 deployments/migrations. Proficiency with Conditional Access, CI/CD pipelines, and Infrastructure‑as‑Code (e.g., Terraform) is essential. Additional exposure to Exchange Online/Server, Teams, SharePoint, OneDrive, desktop build/deploy automation (Windows 365/AVD), and config management tools such as Ansible or Puppet will be highly advantageous.

To secure the most relevant hire, my client is committed to offering a highly competitive package alongside excellent benefits and a collaborative environment where engineers can thrive and make a visible impact.

Apply now via the link below or send your CV directly to [e-mail].