Alliance Partnerships Sales Leader

Marsh McLennan•St. Louis, MO

6d•Hybrid

About The Position

We are seeking a talented individual to join our Strategic Partnerships team at Mercer, a Marsh business. This position is flexible to be near any Mercer office. The Alliance Partnerships Sales Leader role leads the strategy, sales leadership, and P&L management for the US&C Alliance Partnerships ecosystem. You will own the overall partner-driven sales and revenue number and lead teams responsible for platform and solution alliance sales, commercial relationships, client success, and activation excellence—building a scalable, predictable, high-growth revenue engine through strategic partners.

Requirements

Senior commercial leadership experience with P&L ownership and accountability for large-scale revenue targets.
Proven ability to build and scale alliances/ecosystem GTM motions that drive measurable pipeline and closed-won revenue.
Demonstrated success leading and developing high-performing teams across sales, commercial, and activation/client success functions.
Strong executive presence with a track record of building C-suite relationships and driving outcomes in complex, matrixed organizations.

Nice To Haves

Experience leading strategic alliances with major enterprise platforms (e.g., Workday, SAP, UKG) and scaling co-sell programs.
Background integrating partner-led growth with consulting/professional services sales and delivery models.
Evidence of improving win rate, YoY partner revenue growth, and margin contribution through disciplined operating cadence and activation excellence.

Responsibilities

Own and be accountable for segment P&L, including sales and revenue targets across all strategic Alliance Partnerships, in lockstep with partnership leadership.
Design and execute the firm’s 3–5-year Alliance partnership strategy, aligned to partner programs and Careers growth objectives.
Lead, mentor, and manage the Alliance Partnerships organization, building a culture of high performance and accountability.
Build and maintain C-suite and executive relationships with key alliance partners (e.g., Workday, SAP, UKG) to deepen alignment and accelerate growth.
Direct the overall go-to-market (GTM) strategy across partner types, ensuring tight integration with direct sales and consulting practices.
Serve as the senior, central point of contact across the firm to ensure practice leaders are aligned with and enabled by the partnership strategy.