Marsh McLennan · 21 hours ago
Business Impact Manager: Defense and Security, Global
London - Baker
Full-time
Hybrid
Mid Level
4+ years expOliver Wyman, a Marsh McLennan business, specializes in providing deep industry insights and innovative solutions. The Business Impact Manager will play a crucial role in the strategic and commercial development of the Defense & Security task force, managing day-to-day operations and collaborating across functions to align initiatives with business goals.
Financial ServicesProfessional ServicesService Industry
Responsibilities
Develop and leverage trusted relationships with firm leadership and teams, as well as relevant infrastructure teams
Manage or support recurring activities that are important to the long-term success and smooth day-to-day running of the business (not exhaustive)
Strategic topics, including
Development and implementation of strategies for commercial, corporate, or people development
Support of periodic planning activities
Delivery of strategic decision support analyses
Commercial activities, including
Key account planning
High impact opportunity management
Pipeline management
Business operations, including
Preparation and facilitation of internal meetings
Tracking and follow up of action items
Management of business to-do list, prioritizing tasks and initiatives
Execution of people management processes such as objective setting cycles
Execution of compliance processes etc
Engagement and communication
Manage or support ad-hoc initiatives according to the needs of the business
Identify and implement improvements including in strategic, commercial or operational processes, enhancing efficiency and effectiveness in day-to-day activities
Show leadership within the Business Impact Team, leading key internal projects or initiatives and enabling the success of fellow members for example through participation in learning and development initiatives, best practice sharing etc
Provide coverage where needed
Qualification
Required
4+ years of experience in professional services
Experience dealing with confidential and business critical issues
Client Service Excellence: Delivers a high-impact, '10 out of 10' client service experience
Curiosity and Market Understanding: Demonstrates a strong desire to understand Oliver Wyman and Marsh business dynamics and the broader market context
Project Management and Solution Development: Independently manages and prioritizes multiple projects, leading the development of creative solutions that enhance business performance while meeting tight deadlines
Insightful Advising: Provides high-quality insights and acts as a trusted advisor to leadership
Effective Communication: Communicates with confidence and clarity, employing a constructive style in both spoken and written formats to engage diverse audiences
Self-Motivation and Leadership: Exhibits strong self-motivation and leadership qualities
Relationship Building and Collaboration: Builds and maintains trusted relationships with stakeholders, promoting open and respectful communication while effectively collaborating with colleagues across teams
Inclusivity and Diversity Advocacy: Exemplifies inclusive behavior and actively promotes equality and diversity within the team and the organization
Culture of Improvement: Identifies and shares best practices widely, fostering a culture of continuous improvement and innovation
Performance Enhancement and Coaching: Seeks opportunities to improve individual performance, coaches colleagues, and provides constructive feedback
Adaptability: Willingly responds to ad-hoc requests and projects
Quantitative skills, and proficiency in Microsoft Office suite (in particular Excel and PowerPoint)
Familiarity with generative AI and productivity tools is a plus
Strong academic credentials in fields such as Business, Economics, International Relations, Public Policy, Engineering, or Security Studies
Excellent written and verbal communication skills in English
Eligibility for security clearance (or prior clearance) may be required
Preferred
Experience at a leading management consulting firm highly desirable
Experience with Defense & Security or government clients is strongly preferred
Further languages helpful, but not required
An advanced degree is advantageous but not required
Bonus: Understands the dynamics of private capital or corporate mergers and acquisitions
Benefits
Flexibility of working remotely
Collaboration, connections and professional development benefits of working together in the office
Ability to take career breaks for personal or family reasons
Company
Marsh McLennan
Marsh McLennan (NYSE: MMC) is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman.
10001+ employees
H1B Sponsorship
Marsh McLennan has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (2)
2023 (8)
2022 (6)
2020 (11)
Funding
Current Stage
Public CompanyTotal Funding
$11.2B2024-10-30Post Ipo Debt· $7.25B
2024-02-14Post Ipo Debt· $1B
2023-09-06Post Ipo Debt· $1.6B
Leadership Team
Joe Hayes
Senior Vice President, COO Private Client Services
Katherine Brennan
SVP & General Counsel
Recent News
2025-12-01
MarketScreener
2025-11-21
2025-10-17
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