Site Reliability Engineer

Site Reliability Engineer

London Stock Exchange Group – St. Louis, United States

ABOUT US: LSEG (London Stock Exchange Group) is a diversified global financial markets infrastructure and data business. We provide trusted services that enable businesses and economies worldwide to fund innovation, manage risk and create jobs. Headquartered in the United Kingdom, LSEG operates in 70 countries across EMEA, North America, Latin America and Asia Pacific, employing 25,000 people globally. LSEG’s ticker symbol is LSEG.

OUR PEOPLE: We value diversity, teamwork and innovation. Our culture focuses on connecting, creating opportunity and delivering excellence, fostering individual growth and inclusive collaboration across our global workforce.

As a Site Reliability Engineer you will coordinate activities within the team and apply technology expertise to support the development of products. You will be an enabler for cloud migration, conducting architectural reviews, operational testing, and configuring observability dashboards. Your work will span the entire service lifecycle, from design through deployment and ongoing operation.

• Implement, tune, and administer data layers and infrastructure, proposing system improvements.
• Improve services from inception and design through deployment, operation, and refinement.
• Provide pre‑launch support through system design consulting, software platform development, capacity planning, and launch reviews.
• Lead availability, performance monitoring, and capacity planning, building automation to prevent recurring problems and automate responses to non‑exceptional conditions.
• Maintain live services by measuring and monitoring availability, latency and system health.
• Handle incident response sustainably.
• Scale systems through automation and advocate for changes that enhance reliability and velocity.
• Write highly optimised and accurate code for LSEG products and solutions.
• Continuously build and apply domain knowledge related to workflows, data pipelines, policies and constraints.
• Support essential processes while ensuring high quality standards are met.

• A Bachelor’s degree in computer science or a related technical field, or equivalent practical experience.
• Experience with Object‑Oriented programming languages such as Java, C#, Python, or Go.
• Experience with Unix/Linux and Windows operating systems.
• Hands‑on experience with a cloud platform:
  Azure, AWS, or GCP.
• Experience with Dev Ops concepts and practices.
• Experience with algorithms and data structures.
• Experience in observability practices including logging, metrics, tracing and alerting.
• Experience with Infrastructure as Code.
• Understanding of identity and access management and application security.

We use Datadog and Big Panda for observability, Terraform for cloud infrastructure, and Entra

ID for IAM solutions, but we welcome expertise with other tools.

Senior Associate

We are proud to be an equal opportunities employer. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity or expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. We can accommodate applicants’ and employees’ religious practices, mental health or physical disability needs in accordance with applicable law.

We advise all applicants to read our privacy notice carefully. It explains what personal information we may hold, how it is used, and how applicants can contact us as a data subject.