Lead Site Reliability Engineer

London Stock Exchange; Nottingham; On-site; GBP 90,000 - 120,000; Full time

Job summary

London Stock Exchange in Nottingham seeks a Tech Lead – Site Reliability Engineering to own reliability for Screening services and related platforms. You will define SLOs/SLIs, lead 24x7 operations, and drive automation across incident response, deployment, and observability.

The role combines cloud-native engineering with team leadership, mentoring, and strategic reliability initiatives within a risk intelligence context.

Qualifications

• 8+ years in production operations, SRE or DevOps roles.
• Strong leadership and mentoring of engineering teams.
• Experience implementing reliability practices (SLOs/SLIs).
• Hands-on with cloud-native services on Azure and AWS.
• Proficiency in CI/CD and IaC tooling.
• Excellent stakeholder communication and collaboration.

Responsibilities

• Lead 24x7 reliability operations for Screening services and platforms.
• Define SLOs/SLIs and drive improvements via backlogs.
• Act as Major Incident Commander for critical outages.
• Drive automation across incident response, deployments, and observability.
• Co-own cloud reliability roadmap with platform teams.
• Mentor SRE engineers and support workforce planning.

Skills

SRE leadership

Incident management

Automation

Cloud operations

Observability

Stakeholder management

Talent development

Strategic thinking

Tools

Terraform

GitHub Actions

Jenkins

Datadog

OpenTelemetry

Kubernetes

Docker

Azure

AWS

CloudWatch

Cosmos DB

Azure SQL

Application Gateway

Key Vault

Terraform

Job description

• We are seeking an accomplished and forward-thinking technical leader to join our Risk Intelligence organisation as the Tech Lead – Site Reliability Engineering (SRE) for the Risk Screening Product Line
• Based in Nottingham, UK, this role will lead the reliability engineering function for critical Screening applications supporting the EMEA region
• The successful candidate will be accountable for ensuring the availability, scalability, performance, and security of business-critical platforms while driving operational resilience and service excellence across a complex, cloud-native technology landscape
• As a key technical leader, you will combine deep expertise in Site Reliability Engineering, cloud operations, and modern software delivery practices with a passion for building high-performing engineering teams
• You will lead reliability strategies, incident management, automation initiatives, and continuous improvement efforts, while partnering closely with product, engineering, and business stakeholders to align technology outcomes with organisational objectives
• This role offers an exciting opportunity to influence engineering culture, mentor and develop talent, and establish best-in-class operational practices within a growing and innovative UK-based technology organisation
• Technical Ownership for Identity & Fraud Platforms:
• Lead 24×7 reliability operations for Screening services, ensuring uptime, performance, and compliance across WC1 and World Check verify Applications
• Define and implement SLOs, SLIs, and error budgets; maintain reliability scorecards and drive improvements through engineering backlogs
• Act as Major Incident Commander during critical outages; lead blameless post-incident reviews and ensure learnings are institutionalized
• Drive automation-first mindset across incident response, deployment, compliance, and observability
• Collaborate with product and engineering teams to embed non-functional requirements and secure-by-design principles into delivery pipelines
• Co-own cloud reliability roadmap with platform teams; standardize tooling for observability, ITSM, and incident communication
• Ensure DR readiness, runbook quality, and resilience patterns are consistently applied across services
• People Leadership:
• Lead and mentor a team of SRE engineers, fostering a culture of ownership, learning, and engineering excellence
• Drive career development, performance management, and technical capability growth across the team
• Collaborate with HR and Talent teams to build local hiring pipelines and support workforce planning
• Promote well-being and psychological safety within the team; ensure compliance with health and safety standards
• Represent Nottingham site in global SRE forums; contribute to offshore strategy and location planning
• Partner with vendors and staffing partners to manage workforce augmentation and ensure delivery quality
• Support BCP/DR planning and ensure site-level operational readiness for critical events

Excellent communication and stakeholder management skills; ability to influence across technical and business domainsAWS Lambda, ECS, RDS, CloudWatchProven experience managing cloud-native services on Azure and AWS, including: Azure SQL, Cosmos DB, Application Gateway, Key Vault, Storage, DNS, Load Balancer, Virtual Machines, Azure Machine Learning, Sentinel8+ years in production operations, SRE, or DevOps roles, with at least 3+ years in a people management capacityStrong understanding of SRE principles (SLOs, SLIs, error budgets, incident response)Strong analytical mindset with a focus on measurable outcomes and continuous improvementProficiency in CI/CD pipelines and infrastructure-as-code tools (Terraform, GitHub Actions, Jenkins)Familiarity with observability platforms (Datadog, BigPanda, OpenTelemetry)Hands-on experience with container orchestration (Kubernetes, Docker)Experience working with identity platforms and/or fraud detection systemsStrong collaborator who builds trust across teams and geographiesEmpathetic and inclusive leader, committed to team well-being and growthCalm and structured under pressure; able to lead teams through high-stakes incidentsPassionate about engineering excellence, automation, and reliabilityCommitted to continuous learning and knowledge sharingStrategic thinker with a bias for action and accountability