Site Reliability Engineer

Our Team

We are evolving our Reliability Engineering team to move beyond support and operations. As a Senior Engineer, 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.

Job Summary

The Application Support Engineer (L2) is responsible for providing advanced technical support for business-critical applications. This role handles incident resolution escalated from L1 support, performs root cause analysis, and works closely with development, infrastructure, and business teams to ensure application stability, performance, and availability.

Key Responsibilities

• Provide Level 2 support for production and non-production applications

• Investigate and resolve application incidents escalated from L1 within SLA

• Perform root cause analysis (RCA) and implement preventive fixes

• Monitor application health, logs, and system performance

• Execute SQL queries or scripts to analyze and fix data-related issues

• Support application deployments, releases, and patches

• Coordinate with development, DevOps, DB, and infrastructure teams

• Document known issues, workarounds, and standard operating procedures (SOPs)

• Participate in on-call / shift rotations as required

• Assist in problem management and continuous service improvement

• Ensure compliance with security, audit, and change management processes

Required Skills & Qualifications

• Bachelor’s degree in Computer Science, IT, or related field (or equivalent experience)

• 5–8 years of experience in Application support or Production support

• Strong understanding of application architecture and support processes

• Experience with:

  • Incident, problem, and change management (ITIL-based)

  • Log analysis and troubleshooting

  • SQL / database queries (Oracle, MySQL, PostgreSQL, etc.)

  • Linux/Unix and/or Windows environments

• Familiarity with monitoring tools (Bigpanda, Splunk, Datadog etc.)

• Good communication and documentation skills

Preferred Skills

• Knowledge of cloud platforms (AWS, Azure, GCP)

• Experience with middleware (WebLogic, WebSphere, Tomcat, Kafka)

• Understanding of APIs, microservices, and batch jobs(Autosys)

• Basic scripting (Shell, Python, PowerShell)

• ITIL certification

Key Competencies

• Strong problem-solving and analytical skills

• Ability to work under pressure in production environments

• Customer-focused mindset

• Effective collaboration across teams

• Attention to detail and ownership of issues

Does this sound like a challenge you'd be interested in taking on? Join us!

Career Stage:

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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