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Senior Automation Engineer(Python with Jmeter)

LSEG (London Stock Exchange)

3 Locations permanent

Posted: February 23, 2026

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Quick Summary

Design, develop, and maintain efficient test automation frameworks for API testing, utilizing Python, Pytest, and JMeter. Utilize automation testing frameworks and test scripts to improve test coverage, and create detailed test reports for wider teams.

Job Description

Tech Profile/Required Skills

• Bachelor’s degree/Master’s degree in Computer Science, Computer Engineering, IT or related fields.

• Solid hands on experience in Test Automation suites – Python / Pytest, Robot Test Framework, Postman and Postman Test scripts, JMeter.

• Ability to develop test frameworks and test scripts for API testing.

• Proven experience in automation testing and reporting.

• Experience in implementing automation testing from scratch and producing test reports for wider teams.

• Experience of test automation setup of multi-tier, on prem and cloud based integrated solutions, include API, database, end to end integrations.

• Experience of DevOps tooling including GitLab, pipelines. Understanding of CICD methodology.

• Good communication, verbal and written in English.

• Ability to handle a fast-paced work environment and being proactive in delivering results.

Preferred Skills and Experience

• Cloud Testing experiences (Azure,AWS).

• Knowledge of Robot Test Framework.

• Technical skills and knowledge on SQL, Snowflake, Vectorwise etc

• Experience working with Jenkins , Test Rail , JIRA and Confluence or similar tools.

• Understanding of financial markets, experience testing financial software a plus.

• Any performance tools or metrics usage are an addition but not required.

• Stays up to date with the best tooling and emerging technologies.

Detailed Responsibilities:

• Understand, analyze business and technical requirements, with testability and test approaches.

• Provides the planning, integration, casing, scripting, and execution of all testing required of a single software change or project or program.

• Independently develops test plan documents, writes and executes automation scripts, analyze manual test cases etc.

• Recommend automated test design best suited for the projects, write test cases/scripts, execute test automation tools/scripts.

• Lead implementation of test automation within existing Python / Pytest based framework.

• Develop and maintain tests and/or workflow usage, test environment, test cases/test data, test plans, with limited assistance and the ability to work independently.

• Generate test reporting using company standard methods, analyze defects for improvement.

• Diagnose and resolve technical and operational problems on test systems or products.

• Guide consultants with automated testing efforts and share knowledge (both domain/technical) across the wider Platform Multicloud distribution teams.

• Participate in planning and estimating efforts in the squad as well as planning and execution of on-going QA requirements.

• Work with cross-functional teams to ensure quality throughout the software development lifecycle.

• Responsible for communicating accurately the status of ongoing work to stakeholders recommends improvements to the testing processes to create efficiencies.

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.

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.

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