Salary: £100,000 - 110,000 per year Requirements: 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 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 Technologies: Active Directory Ansible C# CI/CD Cloud DevOps Git Jenkins LDAP PowerShell Python Security Teamcity Terraform Windows AWS Azure Docker GCP Kubernetes MongoDB Oracle SQL Snowflake Splunk VMware More: We are a leading global investment bank seeking a skilled Windows Site Reliability Engineer to join our London-based Technology team. This senior-level leadership role focuses on driving platform reliability, automation strategy, and infrastructure modernization across mission-critical banking systems. We offer an attractive package of circa £110,000 along with excellent benefits, including flexible working options with three days onsite. last updated 11 week of 2026