Role Summary: The Client Experience Senior Associate is a post‑sales role orientated to relationship management passionate about encouraging long‑term client value from an existing portfolio of accounts. Acting as a trusted partner to clients and a key collaborator to Sales and Client Experience colleagues, this role emphasizes account stewardship, analytical insight, and proactive engagement to ensure clients derive maximum value from our solutions. The role balances data‑driven analysis with frequent client interaction, supporting retention, satisfaction, and sustainable growth rather than new‑logo hunting.

Key Responsibilities

• Act as the primary day‑to‑day contact for a defined book of small to mid‑sized client accounts, ensuring a consistently high‑quality client experience post‑sale.

• Develop a deep understanding of client objectives, workflows, and usage patterns to proactively see opportunities to increase value, adoption, and satisfaction.

• Analyse client usage, performance metrics, and feedback to identify risks and opportunities, translating insights into clear, practical actions for clients and internal partners.

• Partner closely with Index Sales Managers and other commercial roles to support renewals, identify logical expansion opportunities, and ensure a joined‑up client strategy—without primary responsibility for hunting new business.

• Deliver structured client engagements such as check‑ins, reviews, and tailored demonstrations that reinforce value realization and product understanding.

• Coordinate with Product, Operations, and Client Advisory teams to resolve issues, handle user problems, and ensure client needs are met efficiently and accurately.

• Maintain accurate account records, activity tracking, and data within CRM systems to support visibility, forecasting, and collaboration.

• Act as the “voice of the client,” sharing insights and feedback internally to help improve products, services, and client processes.

What You’ll Bring

• 2–4 years’ experience in a client‑facing role within financial services, data, analytics, customer success, or account management environments.

• A strong analytical mentality with the ability to interpret data, usage trends, and client metrics, and translate them into clear recommendations.

• Comfort and confidence engaging directly with clients—able to explain insights, guide conversations, and build trust‑based relationships.

• Demonstrated experience managing a portfolio of existing accounts, focusing on retention, service quality, and long‑term value.

• Solid understanding of financial markets, investment products, or data‑driven solutions (index knowledge a plus).

• Strong organizational skills, with the ability to manage multiple priorities while maintaining attention to detail.

• A collaborative, team‑oriented approach, working effectively alongside Sales, Product, and Client Experience colleagues.

Key Competencies

• Analytical thinking and problem solving

• Client engagement and relationship management

• Clear, structured communication (verbal and written)

• Data‑driven decision making

• Collaboration and customer management

• Accountability and follow‑through

Career Stage:

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.

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