Lead Performance Engineer

About LSEG:

The London Stock Exchange Group (LSEG) is a global financial markets infrastructure and data provider headquartered in London, UK. Established in 2007, though its core institution—the London Stock Exchange—dates to 1801, LSEG plays a meaningful role in capital markets worldwide. It operates several trading venues, including the London Stock Exchange, Borsa Italiana, and Turquoise.

We are the leading source of intelligent information for the world's businesses and professionals, providing customers with competitive advantage. Intelligent information is a unique synthesis of human intelligence, industry expertise and innovative technology that provides decision-makers with the knowledge to act, enabling them to make better decisions faster. We deliver this must-have insight to the financial and risk, legal, tax and accounting, intellectual property and science and media markets, powered by the world's most trusted news organization.

Proud to share LSEG in the India is Great Place to Work certified (Jun ’25 – Jun ’26).

Learn more about life and purpose of our company directly from India colleagues’ video: Bengaluru, India | Where We Work | LSEG

Location : Bengaluru

Job Type : Full Time

Experience Level : 8+ years

Key Responsibilities:

• Devise and implement robust performance testing strategies for time-critical systems and large-scale databases, ensuring they meet demanding performance and scalability requirements.
• Design targeted performance tests for Azure services and high-volume database platforms, using tools such as Azure Monitor, Application Insights, Log Analytics, and APM solutions like DataDog and AWS CloudWatch to track and analyse system behaviour.
• Apply deep expertise in system architecture and networking to identify, analyse, and resolve performance bottlenecks, ensuring efficient data flow and optimal resource utilisation across distributed environments.
• Collaborate with development and database engineering teams to optimise application and database efficiency through code profiling, query optimisation, architectural enhancements, and network configuration improvements.
• Conduct comprehensive load, stress, and scalability assessments for transactional and analytical workloads, simulating real-world scenarios to validate autoscaling, failover, and disaster recovery capabilities.
• Develop and maintain performance test scripts and frameworks, integrate testing into CI/CD pipelines, monitor production metrics, and document strategies, execution plans, results, and improvement actions for transparency and effective knowledgebase.

Requirements:

• Bachelor’s degree or equivalent experience in Computer Science, Engineering, or a related field, with a solid foundation in system architecture and networking principles.
• Minimum of three years’ experience in performance engineering or testing, with proven expertise in large-scale database technologies, query optimisation, and database management.
• Demonstrated experience in fintech, banking, or other highly regulated industries, ensuring strict compliance with security and data privacy standards.
• Hands-on proficiency with performance testing tools such as JMeter, LoadRunner, Gatling, and database-specific profiling and monitoring solutions, including scripting, execution, and analysis of test results.
• Strong analytical and problem-solving skills, with the ability to collaborate effectively with multi-functional teams—including developers, database engineers, cloud architects—and integrate performance testing into CI/CD pipelines for Azure and cloud-based platforms.
• Good communication skills and a demonstrable ability to document performance strategies, test executions, findings, and improvements, delivering clear and actionable recommendations to collaborators.

Why Join Us?

• Work on a critical system with high visibility across the organization.
• Be part of a supportive and skilled team focused on operational excellence.
• Opportunity to lead technical improvements and influence support strategy.
• Competitive salary and benefits with learning and career development opportunities.

Every day will bring new and exciting challenges on the job while you:

· Learn and use groundbreaking technologies.

· Apply sophisticated fix techniques to provide outstanding solutions to our customers' individual needs.

· Interact with leading engineers around the world.

What Makes This Opportunity Exciting

• Lead with Impact: You won’t just maintain systems—you’ll drive improvements, influence architecture decisions, and help shape the support strategy for a business-critical data platform.
• Growth-Driven Culture: We're committed to your professional development. You’ll have access to learning resources, certifications, and the opportunity to mentor others and grow into a leadership or architecture role.
• Modernization Journey: Be part of a team that’s modernizing its data estate. While we rely on SQL Server and SSIS today, we’re actively exploring cloud-native platforms—your voice will help guide that transition.
• Collaborative Environment: Work multi-functionally with guides in data engineering, DevOps, and analytics in a culture that values curiosity, accountability, and continuous improvement.
• Tech that Matters: You'll support systems that drive real-time business decisions, impact thousands of users, and power insights across departments.

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. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.

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

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.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.