Senior Specialist - Site Reliability Engineering

Role Profile

We are seeking a highly motivated and experienced Senior Engineer to join the Shared Site Reliability Engineering (SRE) team supporting Risk Intelligence Services within the Markets and Risk Intelligence division. This role is essential to maintaining uninterrupted business operations across multiple applications while adhering to defined SLAs. The successful candidate will be responsible for day-to-day operational support, collaborating closely with product SMEs to ensure smooth change deliveries, and contributing to observability improvements across the environment. As a subject matter expert for Risk Intelligence applications, the candidate will play a key role in incident resolution, system reliability, and mentoring junior team members in domain and process expertise. Flexibility is required, including availability during out-of-office hours and public holidays, to support critical production services and on-call responsibilities. The ideal candidate will demonstrate strong ownership, technical depth, and a proactive approach to problem-solving in high-pressure situations.

Key Responsibilities Ensure uninterrupted business operations by managing production support activities in alignment with defined SLAs

Take ownership of incident calls and lead resolution efforts until SMEs are engaged

Collaborate with product SMEs to ensure smooth and timely change deliveries

Participate in out-of-hours and on-call support, including overnight monitoring and weekend release activities

Contribute to observability analysis and drive improvements in monitoring, alerting, and telemetry

Maintain and enhance support documentation and runbooks for supported applications

Act as a subject matter expert for Risk Intelligence applications, providing deep technical and domain knowledge

Mentor junior team members to build domain and process expertise

Support continuous improvement initiatives across the SRE function

Communicate effectively with stakeholders and provide timely updates on incidents and operational status

​ Required Skills and Experience Bachelor’s degree or equivalent, preferably in a technical discipline

Experience with Linux (Amazon Linux AMI) and Windows Server 2019 in cloud environments

Proficient in MySQL, PostgreSQL, MongoDB, and Aurora RDS

Familiarity with AWS DocumentDB, DynamoDB, and SQLite

Knowledge of MS SQL Always On Availability Groups and migration to Azure SQL Managed Instances

Hands-on experience with AWS SQS and AWS SES

Exposure to Amazon MSK, Coviant, and Cerberus

Strong understanding of AWS S3 and EFS, including frontend integration

Skilled in development using Spring Boot, Node.js, Python (Django, Flask, Apache Airflow), Java (Java 11, Lambdas), React, Angular, JavaScript, C# (.NET Framework), and PHP

Proficient in containerization and orchestration using Docker, Amazon ECS, EKS, and EC2

Additional Attributes 5+ years in production operations, SRE, or DevOps roles

Strong understanding of incident management and operational support in complex environments

Experience working in investment banking or financial services is preferred

Excellent analytical and problem-solving skills

Effective communicator with technical and business stakeholders

Self-motivated with strong prioritization and ownership skills

Collaborative mindset with a focus on mentoring and knowledge sharing

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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