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Marsh & McLennan

Brokers insurance and runs risk and HR consulting

Reinsurance Accounting and Claims Senior Analyst

Full-TimeUpdated on 10/24/2026
No salary listed
Mid, Senior
Bachelor's
Mexico City, CDMX, Mexico
HybridHybrid; colleagues are expected in the local office or onsite with clients at least three days per week.
AccountingAccounts Payable/Receivable

About the job

Requirements
  • Know and comply with US market regulations in reinsurance.
  • Have knowledge of proportional and non-proportional reinsurance.
  • Manage financial statements and perform premium and claims processing.
  • Be familiar with contract law and regulatory controls.
  • Have knowledge of slips (claims from various reinsurers).
  • Have 2 to 3 years of experience in Treaty Reinsurance.
  • Have experience with accounting and finance-related activities.
  • Have a bachelor's degree in Accounting, Finance, or a related field.
  • Have 3 to 5 years of experience in the reinsurance industry.
  • Have excellent written and verbal English communication skills.
  • Have advanced database management skills; Power BI experience is desirable.
  • Be proficient in Microsoft Office applications, including Word, Excel, and PowerPoint, with strong attention to detail in task completion.
Responsibilities
  • Manage financial statements and work in accounting, premium and claim processing, and collections.
  • Ensure accuracy and compliance in financial and claims-related processes.
  • Build and maintain relationships with brokers, clients, and markets.
  • Follow up on activities that are in progress.
  • Mentor colleagues and deliver client service.
Desired Qualifications
  • Power BI experience.
  • Demonstrate strong analytical skills for various tasks.
  • Maintain attention to detail and accuracy in financial reporting.
  • Work both independently and within a team.
  • Handle stress and work under pressure.
  • Focus on achieving results.
  • Demonstrate strong communication and negotiation skills.

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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