Oliver Wyman – Actuarial Intern (2026) – Health

Description :

Oliver Wyman – Actuarial Intern (2026) – Health

Company Overview

is a global leader in management consulting. With offices in 70 cities across 30 countries, Oliver Wyman combines deep industry knowledge with specialized expertise in strategy, operations, risk management, and organization transformation. The firm has more than 7,000 professionals around the world who work with clients to optimize their business, improve their operations and risk profile, and accelerate their organizational performance to seize the most attractive opportunities. Oliver Wyman is a business of Marsh McLennan [NYSE : MMC]. For more information, visit www.oliverwyman.com. Follow Oliver Wyman on X @OliverWyman.

The of Oliver Wyman provides customized actuarial services and strategic insight, supporting clients as they strive to exceed their business objectives. Our exceptional client and employee retention exemplify our commitment to relationships built on trust, responsiveness, and clear communication.

Job Description

Job Title : Health Actuarial Intern - 2026

Office / Regions available : Atlanta, Chicago, Milwaukee, Philadelphia, New York, San Francisco, or D.C.

The Health Practice of Oliver Wyman is rapidly growing and seeking individuals who are highly motivated to expand our team. The practice seeks to inspire a collaborative, team-based culture which fosters free flowing ideas, values diversity and allows for challenges to the status quo. Its colleagues are proud to perform exciting, diverse, and leading-edge work.

As an Actuarial Intern , you will work alongside and learn from Oliver Wyman’s industry leaders and other consultants while contributing to a broad range for client projects. You will gain industry exposure with Oliver Wyman’s clients, which include top tier insurance companies, provider health systems, state regulators, and private equity firms.

Potential projects may include :

Health insurance product development, modeling and analysis support

Care management design and operational efficiency optimization

Pricing assumption analysis, trend analysis and model methodology reviews

Medical and pharmacy claims analysis, including benchmarking to applicable industry experience

Financial reporting and valuation support

Market simulation analyses of proposed federal and state legislation

Mergers & acquisitions due diligence including assumption review, model build and valuation

Feasibility studies for startup operations or expansions of new products

Support of regulatory changes and implementation

Analysis of value-based care and other risk-taking arrangements

In addition, all interns participate in our actuarial bootcamp which consists of a series of presentations, case studies, and mentorship sessions over a six-week period and aims to give participants a valuable and directly applicable skillset for future employment opportunities within the actuarial industry.

Skills and Attributes

Working towards Bachelor’s or Master’s degree, preferably in Actuarial Science, Mathematics, Statistics, Finance or a related field

Commitment to passing actuarial exams

Track record of and desire for rapid learning, high performance, and professional growth

Strong written and oral communication skills

Excellent time management skills

Understanding of the value of collaboration and the ability to work effectively in a team setting

Deep critical-thinking skills and problem-solving ability

Highly motivated individual and willingness to work in a dynamic environment

Exposure to MS Excel, SAS, SQL, R, Python, VBA or other programming languages

Oliver Wyman seeks to invest in its people by fostering a safe and inclusive environment, respecting and welcoming different perspectives, promoting an ownership culture, providing opportunities for individuals to develop their personal brand, and celebrating successes and rewarding performance.

For more information, please visit our website at .

About Marsh McLennan

(NYSE : MMC) is the world’s leading professional services firm in the areas of risk, strategy and people. The Company’s 83,000 colleagues advise clients in 130 countries. With annual revenue of nearly $20 billion, Marsh McLennan helps clients navigate an increasingly dynamic and complex environment through four market-leading businesses. provides data driven risk advisory services and insurance solutions to commercial and consumer clients. develops advanced risk, reinsurance and capital strategies that help clients grow profitably and pursue emerging opportunities. delivers advice and technology-driven solutions that help organizations redefine the world of work, reshape retirement and investment outcomes, and unlock health and wellbeing for a changing workforce. serves as a critical strategic, economic and brand advisor to private sector and governmental clients. For more information, visit , follow us on and or subscribe to .

Oliver Wyman, a business of Marsh McLennan (NYSE : MMC), is a management consulting firm combining deep industry knowledge with specialized expertise to help clients optimize their business, improve operations and accelerate performance. Marsh McLennan is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses : Marsh, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective. For more information, visit oliverwyman.com, or follow on LinkedIn and X.The Actuarial Practice of Oliver Wyman advises clients across a broad spectrum of risk management issues. We are a rapidly growing group with offices expanding across the globe. Our actuaries hold the highest professional qualifications and are nationally recognized as experts in their field(s). We use mathematical and statistical modeling skills and our qualitative assessment methodologies to assist clients in evaluating and addressing risk. Our solutions help clients manage and prepare for the potential financial consequences of uncertain future events. We bring a combination of broad-based expertise with specialized knowledge of specific risks, allowing us to provide independent, objective advice in the three primary areas of risk : healthcare, life and annuity, and property and casualty.Marsh McLennan 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 Marsh McLennan 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 McLennan 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.