Sr. Site Reliability Engineer

London Stock Exchange Group; Creve Coeur (MO); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Healthcare

Retirement planning

Paid volunteering days

Wellbeing initiatives

Job summary

London Stock Exchange Group is evolving its Reliability Engineering team, inviting a Senior Site Reliability Engineer to own availability, performance, and scalability of critical shared services. You will expand hands-on cloud SRE skills, implement automation, and collaborate with development teams to improve reliability and release velocity.

The role emphasizes on-call responsiveness, postmortems, and a culture of continuous learning, with exposure to Datadog and cloud platforms such as Azure

Qualifications

• Bachelor's degree or equivalent practical experience in computer science or a related field.
• Experience in application support with a focus on site reliability engineering.
• Scripting experience with Shell, Python, or similar.
• Infrastructure as Code using Terraform.
• Hands-on experience with Azure or AWS cloud platforms.
• Knowledge of Docker and Kubernetes; observability tools like Datadog or Dynatrace.
• Experience implementing and maintaining CI/CD pipelines.
• Incident response and blameless post-mortems.
• Proficiency with Git workflows.

Responsibilities

• Work in an application support capacity with interest in expanding hands-on cloud SRE experience.
• Maintain Service Level Objectives for owned systems.
• Measure and improve availability, latency, and overall health of services.
• Write automation to scale systems and enable rapid recovery.
• Partner with development teams to improve reliability, observability, and release velocity.
• Participate in on-call rotations, incident response, and postmortems.

Skills

Shell scripting

Python

Terraform

Docker

Kubernetes

CI/CD pipelines

Git workflows

Observability

Datadog

Education

Bachelor's degree in Computer Science or related field

Tools

Terraform

Docker

Kubernetes

Datadog

Dynatrace

Job description

Our Team

We are evolving our Reliability Engineering team to move beyond support and operations. As a Senior Engineer in Site Reliability, you will be part of a diverse and inclusive organization that has full ownership of the availability, performance, and scalability of one of the most critical shared services at LSEG.

Main responsibilities

• Work in an application support capacity with interest in expanding their hands‑on cloud SRE experience.
• SREs maintain Service Level Objectives for the systems they own.
• Constantly measuring and improving availability, latency, and overall system health is at the core of our team's purpose.
• Write automation to scale systems sustainably, prevent service issues, or when they occur, quickly recover service.
• Partner with development teams to improve system reliability, observability, and release velocity.
• Participate in on‑call rotations, incident response, postmortems, and root cause analysis and resolution.
• Be a vocal advocate of strong/sound engineering practices that allow us to build, deploy, and run scalable, reliable, and performant services.
• Enablers for Cloud migration working with foundation and migration teams from the inception of the projects performing architectural reviews, operational acceptable testing and configuring Datadog dashboards and metrics.
• Be part of continuous learning and development culture.

Minimum qualifications

• A Bachelor's degree in computer science, a related technical field involving software/systems engineering, or equivalent practical experience.
• Prior application support experience with a focus on site reliability engineering.
• Experience with scripting languages such as Shell, Python, or similar.
• Experience in maintaining Infrastructure as Code using Terraform.
• Hands on Experience with one of the following cloud platforms: Azure/AWS.
• Knowledge on Docker and Kubernetes.
• Observability tools like Datadog, Dynatrace or similar.
• Implement and maintain CI/CD pipelines.
• Incident response and running blameless post‑mortems.
• Proficient in Git workflows.

Preferred qualifications

• Minimum 6+ years in the industry.
• Experience on DevOps concepts and way of working.
• Experience with algorithms and data structures.
• Understanding of identity and access management, and application security.
• AWS & Azure HandsOn Expertise.

Career Stage: Senior Associate

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our culture of connecting, creating opportunity and delivering excellence shapes how we think, how we do things and how we help our people fulfil their potential. Our Data & Analytics, Capital Markets and Post Trade divisions have a combined power that provides a comprehensive, integrated suite of trusted financial market infrastructure services to help our customers pursue their ambitions. Explore our divisions LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across Europe, the Middle East, Africa, North America, Latin America and Asia Pacific. Find out more get to know some of our people who are pushing the boundaries of technology, finance and more around the world.

Benefits and Support

• Healthcare
• Retirement planning
• Paid volunteering days
• Wellbeing initiatives

Equal Opportunities

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

Privacy Notice

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