Jobs › Marsh McLennan

Sr. Health Actuary Consultant

Marsh McLennan · Chicago, IL · $98,800–$162,500 a year · Full time

Posted Oct 1, 2026 · We last checked this listing on Oct 6, 2026

Apply at Marsh McLennan

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you explained a complex financial result to a non-technical HR audience.

What they are checking: Clear communication, since the role serves as a primary financial contact for clients.

How are you using AI or other technology tools to make actuarial work faster without losing accuracy?

What they are checking: Practical comfort with technology-enabled tools, which the role says it embraces.

Tell me about a mistake that made it to a client. What happened and what did you change?

What they are checking: Honesty about errors and the controls they built afterward to prevent repeats.

What would you do

A carrier's renewal is much higher than your projection. How do you use your analysis in the negotiation?

What they are checking: Turning actuarial evidence into negotiating leverage for the client.

A client wants a plan design option modeled by tomorrow. How do you deliver something reliable that fast?

What they are checking: Ability to work quickly while being clear about simplifications and their limits.

About the work

Walk me through how you would build a renewal projection for a self-funded medical plan.

What they are checking: Command of base period claims, completion, trend, plan changes, large claims and credibility in a real projection.

How do you decide on a trend assumption, and how would you defend it to a client?

What they are checking: Ability to blend market data, client experience and judgment and explain it clearly.

What do you check when reviewing a junior analyst's work for actuarial soundness?

What they are checking: Review discipline, including reasonableness checks, data reconciliation and correct use of models.

How have you used SAS or other tools to handle large claims data efficiently?

What they are checking: Hands-on data skill with the tools the posting names, beyond Excel alone.

How would you set premium equivalent rates for a self-funded plan across coverage tiers?

What they are checking: Understanding of rate setting, tier ratios and how rates support budgeting and COBRA.

Which actuarial credential do you hold or are working toward, and how does it shape your work?

What they are checking: Credential status and its practical connection to health consulting.

Practice this interview out loud.

Offer builds a real interview for this exact role at Marsh McLennan from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by Marsh McLennan.

Company: Mercer Description: We are seeking a talented individual to join our Health Actuarial and Financial Consulting team at Mercer. This is a hybrid role that has a requirement of working at least three days a week in the office. As a Sr Health Actuarial Consultant, you will lead client engagements focused on employers’ health benefits strategies, including financial projections, plan design optimization, and renewal negotiations. You will also serve as a primary financial contact for clients while providing direction to analysts and associates. We will count on you to: • Lead routine client engagements, managing overall service delivery, strategy, financial evaluations, plan design, renewal, business placement, benchmarking, and other projects associated with underwriting health and welfare insurance. • Review data analyses conducted by junior staff to ensure actuarial soundness and assist in their development. • Thrive and be motivated by an environment that embraces AI and technology-enabled tools. • Perform and review complex analyses and cost projections using Excel, SAS, and other software, with potential specialization in certain areas of healthcare-related insurance. • Draft and review client reports or presentations to summarize findings and recommend strategies or solutions. What you need to have: • BA/BS degree in actuarial science, math, statistics, finance, economics, or a related field required. • Minimum 4 years’ experience working in an actuarial field, with health and benefits consulting experience • Proven progress to obtaining your ASA designation • Client facing experience • Strong analytical skills and working knowledge of Microsoft Office—Word, Excel, and PowerPoint. What makes you stand out: • Experience in health benefits actuarial consulting. • Strong programming skills in R and Python, with experience in writing reusable code for data manipulation, actuarial or financial modeling, and process automation, applied effectively in project or production environments. • ASA credentialed Why join our team: • We help you be your best through professional development opportunities, interesting work, and supportive leaders. • We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have an impact for colleagues, clients, and communities. • Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being. Applications will be accepted through October 31 . Mercer is a business of Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information about Mercer, visit mercer.com, or follow us on LinkedIn and X. Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, veteran status (including protected veterans), or any other characteristic protected by applicable law. If you have a need that requires accommodation, please let us know by contacting reasonableaccommodations@mmc.com. Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person. The applicable base salary range for this role is $98,800 to $162,500. The base pay offered will be determined on factors such as experience, skills, training, location, certifications, education, and any applicable minimum wage requirements. Decisions will be determined on a case-by-case basis. In addition to the base salary, this position may be eligible for performance-based incentives. Marsh (NYSE: MRSH) is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information, visit marsh.com, or follow us on LinkedIn and X. Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, veteran status (including protected veterans), or any other characteristic protected by applicable law. If you have a need that requires accommodation, please let us know by contacting reasonableaccommodations@marsh.com. Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.

Apply at Marsh McLennan