Site Reliability Engineer - - Electronic Trading Team

About the role

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. You will work on the design, reliability, and operational excellence of our high-performance FX trading platform—technology used by major financial institutions around the world. This role plays a key part in ensuring our trading systems remain robust, secure, scalable, and highly available.

The ET platform is a highly configurable, component-based FX dealing system delivered as isolated client instances. It supports direct electronic trading via web interfaces, connectivity adaptors, and APIs. The platform integrates seamlessly with market-rate providers, credit engines, and backend services to enable full straight-through processing.

Responsibilities

• Own and maintain Service Level Objectives (SLOs) for the systems you support.
• Continuously measure and improve availability and overall system health.
• Develop automation to scale systems sustainably and prevent or mitigate service issues.
• Partner with development teams to enhance reliability, observability, and release velocity.
• Participate in on-call rotations, incident response, post-incident reviews, and root-cause analysis.
• Promote strong engineering practices to help build, deploy, and operate high-performance services.
• Act as a key enabler for Cloud migration, working with operations and engineering teams from project inception through to operational readiness.
• Conduct architectural reviews, support operational acceptance testing, and configure Datadog dashboards and metrics.

Requirements

• Experience with DevOps or operating highly available distributed systems.
• Strong scripting and automation skills (Bash, Python, etc.).
• Understanding of Linux and cloud environments.
• Knowledge of working with financial trading systems (an advantage).

Qualifications

• A Bachelor's degree in computer science, a related technical field involving software/systems engineering, or equivalent practical experience.
• Experience with programming languages such as: Java, C#, Python.
• Experience with relational databases and SQL.
• Experience with Infrastructure as Code.
• Experience in Observability practices with logging, metrics, tracing, and alerting.
• Hands-on experience with one of the following cloud platforms: Azure, AWS, Kubernetes.

Preferred Qualifications

• Experience with DevOps concepts and ways of working.
• Experience with algorithms and data structures.

About LSEG

London Stock Exchange Group (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 values of Integrity, Partnership, Excellence, and Change underpin our purpose and set the standard for everything we do.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and proud to partner with customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation, provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

Benefits

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days, and wellbeing initiatives.