Windows Site Reliability Engineer

Windows Site Reliability Engineer £110K Hybrid LondonOverview:A leading global investment bank is seeking a skilled Windows Site Reliability Engineer to join their London-based Technology team. This is a senior-level leadership role focused on driving platform reliability, automation strategy, and infrastructure modernisation across mission-critical banking systems. This is an excellent opportunity to join an investment banking powerhouse.Role and Responsibilities:

• Lead Platform Engineering and SRE strategy across the organisation
• Build scalable, self-service, and resilient infrastructure platforms
• Drive Infrastructure as Code and CI/CD adoption, automating manual tasks
• Define SLOs and optimise system performance, latency, and scalability
• Lead root cause analysis and remediate technical debt
• Partner with development teams to improve testing, releases, and deployments
• Shape cloud and hybrid migration strategies
• Ensure regulatory, audit, and security compliance
• Act as senior escalation point for high-severity incidents
• Identify cost and efficiency improvements; deputise for senior leadership

Skills and Experience:

• Deep expertise in Microsoft Windows Server internals
• Advanced knowledge of Active Directory, DNS, DHCP, LDAP, and Kerberos
• Extensive experience tuning low-latency, enterprise-scale systems
• Strong background in SRE, DevOps, CI/CD, and Infrastructure as Code principles
• Advanced scripting and development capability (PowerShell, Python, C#)
• Clustering, high-availability, replication, and disaster recovery expertise
• Experience with Git, Terraform, Ansible, Jenkins, and TeamCity
• Strong understanding of security hardening (CIS) within regulated environments
• Deep knowledge of performance monitoring, system internals, and optimisation techniques
• Experience working within financial services or other regulated industries

Desirable:

• Kubernetes and Docker orchestration
• Major cloud platforms (Azure, AWS, GCP)
• Nutanix HCI and VMware ESX
• Enterprise databases (SQL Server, Oracle, Sybase ASE, MongoDB, Snowflake)
• Enterprise monitoring tools (Splunk, Netcool)

Package

• Circa £110,000 + Excellent Package
• London / Hybrid x3 days onsite
• Flexible working considered

Windows Site Reliability Engineer £110K Hybrid London