# Lead Site Reliability Engineer

**Company**: London Stock Exchange Group (LSEG)
**Location**: Nottingham
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Finance

**Apply**: https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/GBR-Nottingham-1-Chapel-Qtr/Lead-Site-Reliability-Engineer_R0118571?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_ba41c22c-8b5

## Description

We are evolving our Site Reliability Engineering capabilities to strengthen reliability, observability, security, and operational excellence across our Markets and Risk Intelligence division.

As a Technical Lead SRE, you will be a senior hands-on technical person helping shape the foundations of reliability across both new and existing platforms. You will collaborate with Architecture, Engineering, Security, and Platform teams to ensure reliability is built into systems from day one.

**Key Responsibilities**

- Lead the establishment of SRE foundations for new projects building environments, monitoring, alerting, and ensuring operational readiness from day one.

- Collaborate with Architecture and Engineering teams to embed reliability, scalability, security, and observability into system design.

- Define, implement, and champion observability standards, tooling, and guidelines across metrics, logs, traces, and SLIs/SLOs.

- Design and evolve monitoring and alerting solutions that improve visibility, reduce toil, and strengthen system health.

- Continuously drive reliability improvements across our environments through incident reduction, performance tuning, and building resilient patterns.

- Partner with Security teams to ensure our platforms meet compliance, security, and risk-management expectations.

- Lead seamless handovers from project delivery into BAU SRE operations by ensuring documentation, readiness, and strong operational practices.

- Influence architectural and design decisions through data-driven cloud cost optimization and efficiency initiatives.

- Be a technical leader and mentor supporting engineers, shaping engineering standards, and fostering a culture of learning and development.

**PERSON SPECIFICATION**

- Education: Bachelor’s Degree in Computer Science or related field

- Required skills and experience:

+ 10+ years of hands-on technical experience in SRE, Platform Engineering, Infrastructure, or related roles   + Strong experience with AWS, including services such as EKS, ECS, EC2, networking, IAM, and managed services   + Deep hands-on experience with Kubernetes and containerised platforms   + Strong background in Linux systems administrations.   + Proven experience designing and operating observability platforms, including monitoring, logging, and alerting   + Hands-on experience with Datadog for metrics, logs, APM, and alerting   + Strong understanding of SRE principles, including SLOs, error budgets, incident management, and reliability engineering   + Experience working closely with architecture and engineering teams on system design and delivery   + Solid understanding of cloud security principles and experience collaborating with security teams   + Experience with cloud cost optimisation strategies and tooling   + Hands-on experience integrating AI with observability stacks (Prometheus, Grafana, ELK, OpenTelemetry) for proactive issue detection.

**Benefits**

- Join a dynamic organisation of 25,000 people across 65 countries

- Be part of a team that values innovation, quality, and continuous improvement

- Work with a global team and make a significant impact

## Skills

### Required
- AWS
- Kubernetes
- Linux systems administration
- Observability platforms
- Datadog
- SRE principles
- Cloud security principles
- Cloud cost optimisation

### Nice to have
- Microsoft Azure
- Multi-cloud or hybrid environments
- Infrastructure as Code
- Large-scale, complex, or regulated environments
- Vector databases and RAG architectures
- Generative AI and LLM platforms

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Source: [Apply at lseg.wd3.myworkdayjobs.com](https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/GBR-Nottingham-1-Chapel-Qtr/Lead-Site-Reliability-Engineer_R0118571?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)