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Marsh & McLennan

Brokers insurance and runs risk and HR consulting

Senior Administrative Assistant

Full-TimeUpdated on 10/24/2026
No salary listed
Senior
Bachelor's
Seattle, WA, USA
HybridHybrid; at least three days per week in the local office or onsite with clients.
Administrative & Executive AssistanceAdministrative Support
Company Does Not Provide H1B Sponsorship

About the job

Requirements
  • High school diploma and 5+ years of administrative experience, including meeting and event planning, Outlook calendar management, international travel arrangements, and expense management.
  • Expertise in Word, Excel, and PowerPoint, with the ability to manage multiple priorities while keeping stakeholders informed.
  • Strong experience with event planning, including meeting catering and external events.
  • Experience using Zoom and Microsoft Teams and the ability to maintain confidentiality.
Responsibilities
  • Arrange travel accommodations, prepare itineraries, and coordinate group travel logistics.
  • Coordinate meetings, teleconferences, and client/market meeting-room bookings across U.S. time zones.
  • Prepare and submit expense reports in accordance with corporate travel and expense policies.
  • Support event planning and execution, including catering, private-room bookings, and restaurant reservations.
  • Provide onboarding and offboarding support, including nameplates, access cards, American Express cards, and distribution list updates.
  • Perform general administrative duties such as ordering office supplies, business cards, promotional materials, and handling shipping and couriers.
  • Create and edit documents in PowerPoint, Excel, and Word in line with Marsh & McLennan Companies style guidelines.
  • Partner with Broking Support Services leadership to improve processes, consistency, and efficiency across the region.
Desired Qualifications
  • Bachelor’s degree.

About the company

Marsh & McLennan Companies, which operates under the Marsh brand, is an insurance broker and consulting group serving businesses, governments and institutions worldwide. Its Marsh Risk unit arranges property, casualty, cyber and employee-benefit coverage, while Guy Carpenter places reinsurance for insurers. Mercer advises employers on pay, benefits, retirement and investments, and Oliver Wyman, Lippincott and NERA handle strategy, brand and economic consulting. Brokers earn commissions and fees from placing coverage, and consultants bill client fees or charge fees based on assets or plan members. The company traces its roots to 1871 and is headquartered in New York City.

Company Size

10,001+

Company Stage

N/A

Total Funding

N/A

Headquarters

New York, NY

Founded

1871

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Simplify Jobs

Simplify's Take

What believers are saying

  • Consulting drives growth: Mercer and Oliver Wyman's group grew 8% organically in the June 2026 quarter, versus 3% for broking.
  • Profits cushion jobs: Marsh kept about 27 cents of operating profit per sales dollar in 2025, before one-time costs.
  • Many career paths under one employer: 95,000+ colleagues span broking, reinsurance, benefits and strategy consulting in 130 countries.

What critics are saying

  • Expect cuts: Thrive, announced October 2025, sets aside $500 million, mostly severance and technology, to save $400 million yearly.
  • Pricing works against broking: Marsh's index shows commercial rates fell 6% in the June 2026 quarter, an eighth straight drop.
  • Back-office roles are being consolidated: a Business and Client Services unit is pooling operations and technology teams company-wide.

What makes Marsh & McLennan unique

  • Consulting is a third of the business: Mercer and the Oliver Wyman group earned 36% of 2025 revenue.
  • Investment management sets it apart: Mercer is the world's largest outsourced chief investment office, running portfolios for institutions.
  • Scale sets it apart: 2025 revenue grew 10% to $27.0 billion across broking, reinsurance and consulting.

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