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Head of External Data Vendor Management

Job in London, Greater London, W1B, England, UK
Listing for: Marsh McLennan
Full Time position
Listed on 2026-10-18
Job specializations:
  • Management
    Change Management, AI Business & Operations, Corporate Strategy
Job Description & How to Apply Below

Company:

Oliver Wyman

Description:

Help shape how Oliver Wyman turns external data research and expertise into competitive advantage.

As Head of External Data Vendor Management you will lead the strategy for our portfolio of external data and expert vendors shaping investment governance partnerships and adoption across the firm.

With AI transforming how consultants discover and use information you will have a significant opportunity to ensure our investments translate into better insights smarter decisions and greater impact for our clients.

Why Join Us

  • Shape firm-wide strategy: Define how Oliver Wyman invests in and derives value from external data research and expert partnerships.

  • Lead at the intersection of data commercial strategy and AI: Explore emerging and AI-enabled capabilities that can transform how our consultants discover access and use external knowledge.

  • Make a measurable impact: Take a strategic view of firm-wide investment vendor performance adoption and ROIfinding new ways to unlock greater value from our portfolio.

  • Work across the firm: Partner with senior stakeholders across Knowledge Services consulting teams Technology Procurement Legal Risk and business leadership.

  • Lead and develop a talented team: Set the vision for a team operating across multiple locations creating an environment of collaboration accountability and continuous development.

Meet The Team
:

Reports to: Key member of the Knowledge Services Executive Team

Day-to-day collaborators: Knowledge Services Finance Procurement Legal Risk Practice and Capability Heads

People management: You will lead a team of approximately 57 people across multiple locations.

How This Role Will Contribute To Team Success

  • Ensure our consultants have access to the external data research and expertise they need to deliver high-quality insights and outcomes for clients.

  • Lead the commercial agenda for our external data portfolio controlling firm-wide spend demonstrating measurable ROI and continually increasing the value generated from our investments.

  • Drive enterprise-wide adoption as AI-enabled search expands access beyond specialist users owning the critical final mile that turns technology and data investment into consultant adoption and client impact.

Your Day-To-Day

Shape vendor strategy governance and partnerships
Develop and implement a comprehensive strategy for Oliver Wymans external data vendor portfolio. Evaluate providers against our consulting needs establish effective governance and SLAs and build strategic long-term vendor relationships.

Unlock value through data adoption and technology
Identify new opportunities to derive value from vendor data and integrate external sources into our frameworks and methodologies. Explore emerging technologies and AI-enabled capabilities that improve how consultants discover access and use external data research and knowledge.

Drive commercial performance
Manage external data procurement budgets analyse spending and vendor performance and identify opportunities to improve value and service. Establish meaningful metrics and KPIs that demonstrate performance and ROI and enable better investment decisions.

Lead and develop the team
Coach and develop a team of professionals setting a clear strategic direction and high standards for delivery accountability and impact while fostering collaboration knowledge sharing and professional growth.

Be a trusted senior advisor
Partner with senior stakeholders to align external data strategy with broader organisational priorities. Provide insight on vendor strategy market developments and emerging capabilities and represent Oliver Wyman in relevant external forums and industry events.

Skills & What You Bring To The Team

  • Significant leadership experience: At least eight years of progressively senior experience within External Data Research Knowledge or Information Services including enterprise-scale responsibility for vendor portfolios investment strategy and commercial outcomes.

  • Strategic and commercial judgement: A strong track record of evaluating investments analysing spend and vendor performance demonstrating ROI and turning complex information into clear decisions.

  • Transformation and adoption: Demonstrated success evaluating and integrating emerging and AI-enabled capabilities and driving adoption across a large complex organisation.

  • Leadership: Experience building managing and developing high-performing teams while creating a collaborative and accountable environment.

  • Influence: The ability to work…

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