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CDSClear IT Site Reliability Engineer

LSEG (London Stock Exchange)

St. Loui, Missouri permanent

Posted: March 11, 2026

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Quick Summary

A CDSClear IT Site Reliability Engineer is responsible for ensuring the stability and performance of the company's applications and systems, with a focus on efficiency, data pipelines, and business policies.

Job Description

Accountable for key functions and systems of the applications. Hands on in the definition, review, support and execution of complex tasks. ​

Role Responsibilities & Key Accountabilities:
- Proactively builds and applies applicable domain knowledge that may relate to efficient workflows, timely data pipelines, business policies, configurations and constraints
- Handles essential processes, drives remediation and automation while ensuring high quality standards are met
- Holds responsibility for performance through execution, completion and tracking of Application Management services, driving continuous service improvement plans when necessary and identifying structural improvements where required.
- Tracks spend to ensure cost-effective delivery within budget​
- Applies experienced domain knowledge and develops the same in others.

Qualifications & Experience:
- Bachelors degree or equivalent in an IT related discipline
- Significant experience in ops, support and change in a business critical / regulated environment
- Developed experience leading one or more technical teams
- Demonstrable experience operating and managing service operations in a relevant technology domain
- Demonstrated experience and ability in managing time critical incident and recovery (crisis) situations and communication with internal stakeholders​
- Significant experience contributing to post incident analysis and reviews, retrospectives and blame free post mortems
- Significant experience of application management
- Significant experience supporting the specific product / application in use
- Extensive experience with monitoring tools (e.g. DataDog, ITRS etc.).

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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