Senior M&A Consultant

Marsh McLennan

Senior M&A Consultant supporting the full deal lifecycle across M&A transactions at Mercer. Leading project management and development of HR strategies for clients in New York and Chicago.

Posted 7/30/2026full-timeNew York City • Illinois, New York • 🇺🇸 United StatesSenior💰 $104,400 - $208,800 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in M&A deal lifecycle management, project management, and financial modeling while effectively leading teams and engaging with clients. Proficient in workforce analytics and HR functions, with a strong emphasis on communication and business development.

Highest-signal resume keywords

M&A Deal LifecycleProject ManagementFinancial ModelingMicrosoft Office ProficiencyConsulting Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Financial ModelingWorkforce AnalyticsProject ManagementQuantitative AnalysisData Room Review

Soft Skills

Written CommunicationVerbal CommunicationTeam Leadership

Tools & Technologies

Microsoft ExcelMicrosoft PowerPointVirtual Data Room (VDR)

Industry Keywords

ConsultingM&AHR FunctionsOrganizational DesignBusiness Development

About the role

Key responsibilities & impact

Lead due diligence and transaction execution across deal types
Manage data requests, virtual data room (VDR) review, and quantitative analyses
Drive project management and cross-workstream coordination
Serve as a primary day-to-day client contact and workstream lead
Develop workforce analytics and financial models
Support organizational design and culture assessment workstreams
Lead and develop junior team members
Contribute to business development

Requirements

What you’ll need

Bachelor's degree required
4–7 years of professional experience
Minimum of 2–3 years in a consulting role (or in-house strategy/M&A)
Strong understanding of the M&A deal lifecycle
Working knowledge of core HR functions
Familiarity with transaction-specific HR considerations across deal types
Demonstrated project management capabilities
Strong written and verbal communication skills
Proficiency in Microsoft Office (Excel modeling, PowerPoint storyboarding)
Willingness to travel to client sites as required

Benefits

Comp & perks

Health and welfare benefits
Tuition assistance
401K savings and other retirement programs
Employee assistance programs