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Senior Client Manager – Business Insurance

Marsh McLennan Agency, Chesterfield, MO, United States


Our not-so-secret sauce.

Award-winning, inclusive, Top Workplace culture doesn’t happen overnight. It’s a result of hard work by extraordinary people. The industry’s brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as a

Senior Client Manager

at MMA.

Marsh McLennan Agency (MMA) provides business insurance, employee health & benefits, retirement, and private client insurance solutions to organizations and individuals seeking limitless possibilities. With offices across North America, we combine the personalized service model of a local consultant with the global resources of the world’s leading professional services firm, Marsh (NYSE: MRSH).

A day in the life As our

Senior Client Manager

on the

Business Insurance

team, you will oversee and manage client accounts, ensuring exceptional service delivery and customer satisfaction. This role involves leading the marketing process, preparing comprehensive proposals, binding coverage, and ensuring the accuracy of policy documentation. You will also mentor team members, collaborate with cross‑functional teams, and contribute to the agency’s growth and retention goals.

Our future colleague

High school diploma or equivalent

3+ years of experience in customer service, underwriting, or commercial lines insurance for a carrier or broker preferred

Familiarity with insurance company markets, binding authority, and underwriting guidelines preferred

Property/Casualty license or ability to attain one is required

These additional qualifications are a plus, but not required to apply:

AAI, CIC, CISR, or CRIS designation preferred

Valuable Benefits

Generous time off, including personal and volunteering days

Tuition reimbursement and professional development opportunities

Hybrid work flexibility

Charitable contribution match programs

Stock purchase opportunities

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Who You Are Is Who We Are We embrace a culture that celebrates and promotes the many backgrounds, heritages, and perspectives of our colleagues and clients. We are always seeking those with ethics, talent, and ambition who are interested in joining our client‑focused teams.

Marsh McLennan and its affiliates are EOE Minority/Female/Disability/Vet/Sexual Orientation/Gender Identity employers.

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