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Directory Services Support Engineer

LSEG (London Stock Exchange Group)
United States, Missouri, St. Louis
Sep 18, 2025

ABOUT US:

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It's how we've contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services - and our open-access model - we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.

LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG's ticker symbol is LSEG.

OUR PEOPLE:

People are at the heart of what we do and drive the success of our business. Our culture of connecting, creating opportunity and delivering excellence shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.

We know that real personal growth cannot be achieved by simply climbing a career ladder - which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organisation spanning 70 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers!!

ROLE SUMMARY:

You will need to be a highly skilled and motivated Directory Services Support Engineer to join our global Active Directory Support team. The ideal candidate will have extensive experience in Active Directory, Entra ID, Domain Controller support, Windows OS support, Quest administration and tooling, Patch management, and PowerShell. This role requires a proactive individual who can effectively run and support our Active Directory infrastructure across multiple regions.

WHAT YOU'LL BE DOING:

  • Providing support for Active Directory and Entra ID, ensuring the stability and security of the directory services.

  • Running and maintaining Domain Controllers, including installation, configuration, troubleshooting, and decommissioning.

  • Providing Windows OS support, addressing issues related to Active Directory integration and performance.

  • Deploying, configurig and troubleshooting Quest tools for Active Directory administration, migration, reporting, and auditing tasks.

  • Implementing and running Patch management processes to ensure systems are up-to-date and secure.

  • Collaborating with global teams to ensure consistent and efficient Active Directory operations across all regions.

  • Monitoring and responding to incidents and service requests, providing timely and effective resolutions.

  • Developing and maintaining documentation for Active Directory processes, procedures, and configurations.

  • Participating in on-call rotations to provide 24/7 support for critical Active Directory issues.

  • Designing, developing, and maintaining PowerShell scripts to automate monitoring, reporting, and management tasks within the Active Directory and Entra ID environments, ensuring operational efficiency and reliability.

WHAT YOU'LL BRING:

  • Proven track record in administering and resolving issues within Active Directory and Entra ID environments across complex, large-scale global infrastructures.

  • Support for Domain Controllers and Windows operating systems, administration of Quest tools, and management of patching processes.

  • Demonstratable expertise in PowerShell scripting and automation, with the ability to design, implement, and refine scripts that streamline complex administrative tasks within Active Directory and Entra ID environments.

  • Comprehensive understanding of Group Policy Management, with the ability to design, implement, and troubleshoot GPOs.

  • Strong knowledge of Identity and Access Management (IAM): experience with principles and practices for managing user identities, authentication protocols, and access controls within hybrid or cloud-integrated environments.

  • Expertise in troubleshooting and root cause analysis: advanced diagnostic skills to resolve complex issues related to replication, authentication failures, DNS integration, and trust relationships in multi-site infrastructures.

  • Experience with security best practices: proficiency in monitoring and remediating security vulnerabilities, implementing least privilege access models, and auditing directory changes for compliance and risk mitigation.

  • Familiarity with backup and disaster recovery strategies: skill in designing and executing robust backup, restore, and recovery plans for Active Directory.

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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