Senior Investment Manager - London Stock Exchange Group

The Group Investment Management (GIM) team is hiring a Senior Investment Manager to play a critical role in how the Group allocates, reports on, and optimises its ongoing investment allocations. This role requires strong financial acumen, the ability to work with complex data sets, and the confidence to propose capital allocation decisions to senior executives. This role will lead key elements of monthly reporting, forecasting improvements, capital redeployment, and cross-functional alignment with divisions, Finance, Strategy and Procurement. You will also work closely with our Tooling & Dashboard teams to ensure the delivery community has the tools and processes needed to manage the change portfolio effectively.

WHAT YOU'LL BE DOING:

• Capex Reporting & Financial Governance
• Own Group reporting across budgets, forecasts, growth tracking, and acceleration updates.
• Drive adoption and consistent use of the Group PPM tooling across divisions.
• Run monthly data sessions with Divisions, issuing actions to resolve variances or data issues.
• Monitor the phasing of investments, drawing insights on delivery pace, risk, and opportunities to reclaim capital.
• Scrutinise spend feasibility and proactively recoup capital for reinvestment where appropriate.
• Ensure adherence to financial controls including Clarity usage, change control, resourcing adoption, and detailed third-party spend forecasting.
• Capital Redeployment & Growth Opportunities
• Maintain a pipeline of investment opportunities that can be funded if capital becomes available.
• Work with divisions and Procurement to identify opportunities for acceleration and cost optimisation.
• Support Growth Fund assessment by providing high-quality analysis and spend feasibility inputs.
• Forecasting, Tooling & Process Improvement
• Mature the Group's forecasting capabilities and improve budget tracking processes.
• Partner with the Dashboard/PPM Tooling teams to enhance forecasting, budgeting and cost tooling - improving ease of use and MI quality.
• Work with divisional stakeholders to embed improved processes and data standards across the portfolio.
• Investment Planning
• Support the annual Investment Planning cycle with data-driven analysis.
• Champion the continued full adoption of the PPM tooling solution (Clarity) for cost, benefits, outcomes, OKRs and investment baselines.
• Collaborate with senior stakeholders to gather feedback, refine processes, and support Group-level decision-making.
• Ensure alignment across PPM tooling, PowerBI dashboards, and the Group's investment approach.

WHAT YOU'LL BRING:

• Experience in a Group or Enterprise-level role owning central processes and tools.
• Proven background in capital planning, portfolio management or financial governance.
• Strong analytical capability, including advanced Excel and the ability to interpret large data sets.
• Ability to influence and drive action through data-led insight (without direct authority).
• Excellent relationship management and communication skills, able to persuade senior stakeholders.
• Experience working with enterprise tooling such as Clarity, Planview, or similar PPM/portfolio systems.
• Experience balancing competing priorities in a fast-paced environment.
• Demonstrated ability to design and operationalise processes at scale.

NICE TO HAVE:

• Familiarity with Oracle ERP, Workday or equivalent financial systems.
• Experience working with or alongside programme delivery teams (though this is not a delivery role).
• Understanding of investment letters, baseline management, and centralised financial controls.
• Experience with PowerBI or similar analytics tooling.

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.