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Executive Assistant

LSEG (London Stock Exchange)

London, United Kingdom permanent

Posted: March 23, 2026

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Quick Summary

Deliver high-quality support services, manage complex diaries and meetings, and contribute to a cohesive team.

Job Description

Role Summary

The Executive Support team plays a crucial role in enabling our leaders and broader organisation to operate efficiently and effectively. As a Senior Executive Assistant, you will provide high quality, proactive support that not only manages day-to-day operational demands but also anticipates needs before they arise. This role requires strong leadership—helping drive best practices, fostering collaboration across fellow EAs and business management, and contributing to a cohesive, high performing team.

You will deliver a wide range of services, including complex diary and meeting management, proactive inbox management, streamlined handling of internal and external communications, coordination of international travel, maintenance of records and documentation, and expert guidance on tools, systems, and processes. Your ability to build strong partnerships, influence outcomes, and proactively connect work across teams will be key to supporting our leaders in an extremely fast‑paced, dynamic environment.

You will bring a strategic mindset, sound judgment and discretion and have the ability to operate confidentiality and in ambiguity. You will require a talent for building trust quickly and confidence in influencing senior stakeholders globally.

What you will be doing:

• Complex diary management, supporting a global business function within LSEG
• Sophisticated inbox management on behalf of the leader(s) & taking care of incoming communication, correspondence on behalf of the Executive
• Using critical thinking to make connections across the business, internally and externally to pre-empt the leader(s) requirements
• Working in partnership with the Business Manager to ensure efficiency for the leader(s)
• Onsite and remote support in a hybrid working environment
• Arranging standard, multi sector travel itineraries in conjunction with the travel team ensuring compliance with internal policies and ensuring appropriate security measures are in place for travel in high risk areas
• Collation of briefing papers, reports and presentations
• Building and maintaining strong working relationships both internally and with clients and other key contacts at all levels
• Leading the expense processes from raising claims, POs, setting up suppliers.
• Ensuring the leader(s) is compliant and in line with LSEG governance procedures
• Meeting and greeting visitors at all levels of seniority;
• Communication Presence – Always acting as a face of the leader.
• Supporting the holiday coverage module
• Onsite and remote support in a hybrid working environment, usually 3 days per week in the office, or as often as the role requires

What you will bring:                                               

• Experience of supporting C-Suite or ExCo level leaders in complex, global environments is essential
• Experience of a financial services company or other fast paced environments
• Professionalism – Communication & organizational skills are key

Key Skills

• Ability to build and manage relationships up to all levels both internally and externally;
• Highly organised and able to prioritise and multi-task optimally with minimal supervision;
• Excellent communication and influencing skills;
• Resilience, tenacity and tact;
• Able to act as a credible representative for the executive;
• Excellent MS Office and document creation skills; and
• Sound literacy and numerical skills;
• Ability to think on feet and to react quickly to problems and tackle them; and
• Flexibility, discretion and ability to respect confidentiality at all times;
• Appetite for hard work and dedication to work hours required of the role.
• Calm demeanour and able to function well under pressure;
• Able to work well individually and part of teams across a matrixed environment;

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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