Windows SRE (PowerShell)

Bonhill Partners; England; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

A leading global investment bank is seeking a skilled Windows Site Reliability Engineer (SRE) to join their London office, offering a hybrid working model. In this mid-senior level role, you will focus on ensuring the reliability, scalability, and performance of the bank’s Windows infrastructure, primarily through automation and operational efficiency. Key responsibilities include developing automation tools, implementing Infrastructure as Code, and managing Active Directory. Ideal candidates will have strong PowerShell and Windows Server experience alongside a background in financial services.

Qualifications

• Strong experience with PowerShell scripting.
• Extensive experience in Windows Server administration, updates, and upgrades.
• Deep understanding of Active Directory administration and troubleshooting.

Responsibilities

• Develop scripts and automation tools to improve infrastructure reliability.
• Implement Infrastructure as Code (IaC) using Terraform or similar tools.
• Support CI/CD pipelines and automation workflows across global teams.

Skills

PowerShell scripting

Windows Server administration

Automation tools (Ansible, Terraform)

Active Directory administration

CI/CD pipelines

Job description

Job Title: Windows SRE (PowerShell)

Location: London, UK – Hybrid (3 days in office)

Salary: Up to £100,000 per year + Bonus

Type: Permanent

About the Role:

We are supporting a leading global investment bank in recruiting a skilled Windows Site Reliability Engineer (SRE) for their London office. This permanent role offers a hybrid working model with three days in the office per week. You will ensure the reliability, scalability, and performance of the bank’s Windows infrastructure while driving automation and operational efficiency.

Key Responsibilities

• Develop scripts and automation tools to improve infrastructure reliability and streamline deployments.
• Implement Infrastructure as Code (IaC) using Terraform, Ansible, or similar tools.
• Support CI/CD pipelines and other automation workflows across global teams.
• Manage and maintain AWX/Ansible Tower to optimize automation processes.
• Monitor, maintain, and upgrade Windows Server environments in a complex enterprise setting.
• Administer and troubleshoot Active Directory across multiple global sites.
• Strong experience with PowerShell scripting.
• Extensive experience in Windows Server administration, updates, and upgrades.
• Deep understanding of Active Directory administration and troubleshooting.
• Hands‑on experience with automation tools such as Ansible, Terraform, or similar.
• Familiarity with CI/CD pipelines and modern SRE/automation practices.
• Previous exposure to financial services or investment banking environments is a plus.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology

Industries

Investment Banking, Banking, and Financial Services