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Marsh & McLennan

Brokers insurance and runs risk and HR consulting

Business Analyst - Accounting Operations

Full-TimeUpdated on 10/24/2026
No salary listed
Mid
Bachelor's
Warsaw, Poland
HybridHybrid role; at least three days per week in the Warsaw office.
Business & StrategyBusiness Analysis

About the job

Requirements
  • A bachelor's degree in Finance, Accounting, Business Administration, or a related field is required.
  • At least three years of experience in business analysis, preferably within accounting or finance.
  • A solid understanding of accounting principles and financial reporting standards is required.
  • The role requires problem-solving and critical and analytical thinking skills.
  • Strong written and verbal communication skills are required, including the ability to present complex information to non-technical stakeholders.
  • The role requires the ability to work independently and collaboratively in a fast-paced, global environment.
  • The role requires attention to detail, strong organizational skills, and the ability to manage multiple projects simultaneously.
Responsibilities
  • Support strategic and tactical project work for Finance and Financial Systems independently.
  • Identify improvements, act as a subject matter expert, and lead small project teams while liaising between IT, users, and senior management to track tasks, resolve issues, and deliver updates.
  • Assist in creating strategic documents, including project business cases, assessments, communication plans, and detailed project plans.
  • Work with the Financial Systems team and user groups to prepare rationale for new system implementations supporting a function or business.
  • Research problems and issues, recommend solutions, and provide tactical analysis associated with projects.
  • Test system enhancements and upgrades while liaising between IT and user groups, and support production users in their day-to-day work.
  • Analyze data as required.
  • Participate in projects by providing input into project structure and acting as a subject matter expert; complete assigned tasks in externally managed projects; contribute information to strategic documents; and present project updates and presentations to senior management within Finance.
  • Recommend process improvements based on analysis.
  • Map accounting processes and recommend improvements based on analysis, including evaluating robotics versus other solutions.
  • Lead small teams on minor projects using project implementation documentation, including implementation toolkits and migration schedules; track issues and tasks, follow up with responsible individuals, and escalate issues when appropriate.
Desired Qualifications
  • Strong proficiency in data analysis tools such as Excel, SQL, Tableau, and Power BI, and experience with data visualization techniques.
  • Curiosity and an exploratory mindset for continuous improvement and process streamlining.
  • Experience in business analysis within accounting or finance.

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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