Senior Site Reliability Engineer

Role Summary

We are seeking a Senior Site Reliability Engineer (SRE) with strong expertise in automation, observability, infrastructure operations, and platform reliability. This role is primarily focused on improving the reliability, availability, and operational efficiency of large-scale on-premises environments through engineering excellence and automation. Additionally, the candidate should possess a solid understanding of ITIL-based Service Management practices to effectively manage incidents, changes, and problems.

Key Responsibilities

• Design, build, and maintain highly reliable and resilient infrastructure platforms.
• Drive automation initiatives using Python, Ansible, and Terraform to reduce operational overhead.
• Develop and support CI/CD pipelines and Infrastructure as Code (IaC) practices.
• Implement and enhance observability solutions, monitoring, alerting, and troubleshooting frameworks.
• Lead reliability improvements, incident response, RCA activities, and service restoration efforts.
• Work closely with infrastructure and engineering teams to improve platform performance and availability.
• Apply ITIL best practices for Incident, Change, and Problem Management to ensure operational governance and service stability.

Experience: 8–10 Years

Required Skills

Site Reliability Engineering

• Strong hands-on experience in Python (Advanced) for automation and tooling.
• Experience with CI/CD platforms and deployment automation.
• Proficiency in Ansible and Terraform.
• Strong infrastructure and platform operations knowledge.
• Good understanding of Azure and AWS cloud fundamentals.
• Advanced expertise in Observability, Monitoring, Alerting, and Troubleshooting.
• Experience with SRE concepts including reliability, availability, capacity planning, and operational excellence.

Service Management

• Strong understanding of ITIL principles.
• Hands-on experience in: Incident Management Change Management Problem Management
• Experience conducting Root Cause Analysis (RCA) and driving service improvements.

Good to Have

• OpenTelemetry (OTEL)
• Grafana
• Cribl
• ClickHouse
• Experience supporting enterprise-scale on-prem or hybrid environments

We're proud to have been recognised as a Great Place to Work® in India ‘25.

Career Stage:

Senior Associate

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

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 purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

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.

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 we are proud to partner with our 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.

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

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