Math Internship Jobs in Watertown, WI (NOW HIRING)

Exciting Spring 2027 internship opportunities!

Join our CMH HealthPractice!

Milliman’s CMH Health Practice is looking for motivated graduates or current college students pursuing a bachelor’s or master’s degree in actuarial science, math, economics, finance, statistics or another major with quantitative course work to participate in a full-time seasonal (winter-spring) internship with a focus on our Medicare Advantage and Medicare Advantage Part D business areas. We offer competitive pay with the opportunity to work on real world assignments in our vibrant, dynamic, and growing health consulting practice. Candidates should be talented and hard-working individuals with strong math and analytical skills. 

Who WeAre 

Independent for more than 75 years, Milliman delivers market-leading services and solutions to clients worldwide. Today, we are helping companies take on some of the world’s most critical and complex issues, including retirement funding and healthcare financing, risk management and regulatory compliance, data analytics and business transformation. 

Time Commitment 

This internship will be a full-time seasonal position that requires significant time commitment and is not typically completed at the same time as college coursework. We are ideally looking to fill these positions with individuals who will be available to work during standard business hours and willing to work extended full-time hours (at least 40+ hours per week, along with extended hours, at times of 50+ or 60+ hours per week). This role is eligible for overtime and any hours worked over 40 per week will be paid at time and one-half the hourly rate. The preferred start and end dates are mid-January 2027 to mid-June 2027 depending on business need.

Our Internship Provides You 

• Challenging assignments with practical on the job experience 
• Real world experience working during our busiest season (January through June)
• Competitive pay and high earning potential with the opportunity to work overtime and receive time and a half
• Work alongside some of the leading experts within the Medicare Advantage and Part D (MA-PD) healthcare industry
• Exposure to relevant case studies through our CMH Health training program which focuses on teaching basic and applicable concepts of the MA-PD program
• Within the MA-PD segment of our practice, exposure to a variety of actuarial functions, including experience studies, valuation, pricing, model development, and forecasting 
• An opportunity to work alongside Milliman’s premier MA-PD actuarial consultants, including those in senior management 
• Development of your technical skills with platforms such as Excel, VBA, Python, and SAS 
• Attendance at professional staff meetings and department meetings 
• For those on an actuarial track, day of actuarial exam sitting is paid time off 
• Mentorship from experienced actuaries 
• Housing stipend may be provided
• Competitive pay
• Prospect of securing a full-time position with Milliman 

Job Responsibilities 

• Perform data analysis using Excel, VBA, SAS, Python, and proprietary Milliman programs to assist with consulting in Medicare Advantage and Part D 
• Pricing and analysis for Medicare Advantage and Part D plans 
• Provide medical, dental, and/or pharmacy benefit design strategy support for insurance carriers
• Participate in consulting activitiesincludingpricing, reserving, financial, projections, and mergers and acquisitions 
• Responsible for reviewing the work ofpeersand assisting with research and product development 
• Coordinate with Consultants, Managers, Professional Staff, and fellow Interns as a project team to analyze claims data, quantify the cost of insurance coverage, and model payment scenarios for clients 
• Responsible forthe majority ofthe technical work, which may include analyzing data, completing actuarial calculations, developing and utilizing actuarial models, and implementing software solutions

Minimum requirements 

• Pursuing abachelor’sor master’s degree in actuarial science, mathematics, economics, finance, accounting, or another major with quantitative course work  
• Junior standing is preferred but not required.Freshmen and sophomores will also be considered 
• Must be able to work full-time from mid-January 2027 to mid-June 2027 (40+ hours per week along with extended hours, at times of 50+ or 60+ hours per week) 
• For those on an actuarial track, at least one actuarial exam passed is preferred, but not required 

Competencies and Behaviors that Support Success in this Role 

• Ambition and excitement for professional development 
• Good academic standing (3.2 grade point average or above is preferred)
• Previous internship or relevant work experience
• Leadership experience and involvement in extra-curricular activities
• Experience working with SAS,VBA, or other coding languagesis advantageous
• Strong communication skills (both verbal and written) 
• A detail-oriented self-starter with an entrepreneurial spirit inspired to contribute to the success of any project 
• Ability to work on multiple types of projects at one time 
• Can complete project deliverables, meet deadlines, and ensure compliance with quality procedures 
• Analytical thinking skills to evaluate analyses fordownstream impact 
• Strong time management skills
• Ability to work independently andin a team environment 
• Demonstrates integrity in all functions of work 
• Excel, programing, and prior internship experience or work is a plus, but not a requirement for this position 

Individual(s) must be legally authorized to work in the United States without the need for immigration support or sponsorship from Milliman now or in the future.

The Team 

Milliman is one of the leading experts in healthcare financing and delivery. We advise clients on a wide range of issues—from assessing the impact of healthcare reform on organizations or populations to streamlining operations while advancing the quality of patient care. Our consulting work is supported by a powerful toolkit of data analytics solutions and informed by the most trusted, comprehensive set of cost guidelines in the industry. 

Through a team of professionals ranging from actuaries to clinicians, technology specialists to plan administrators, we offer unparalleled expertise in employee benefits, investment consulting, healthcare, life insurance and financial services, and property and casualty insurance. 

Location:

It is preferred that candidates work on-site at our Brookfield, WI, Chicago, IL, or Hartford, CT office, however, remote candidates will be considered. If you decide to work on-site, you will be required to work at least three days (60% of the time) per week in any one of our three CMH Health office locations. The expected application deadline for this job is January 17, 2027.

Compensation:

The overall range for this role is $21 - $46. For candidates residing in:

• Alaska, California, Connecticut, Illinois, Maryland, Massachusetts, New Jersey, New York City, Pennsylvania, Virginia, Washington, or the District of Columbia the range is $23 - $46. 
•  All other locations the range is $21 - $37. 

A combination of factors will be considered, including, but not limited to, education, relevant work experience, qualifications, skills, certifications, etc.This is a non-exempt overtime eligible role. 

Benefits:

• Employee Assistance Program (EAP) – Confidential support for personal and work-related challenges.
• 401(k) Plan – When an employee reaches 1,000 hours worked within 12 consecutive months, they become eligible for a 401(k) plan that includes a company matching program and profit-sharing contributions.
• Paid Time Off (PTO) – Begins accruing on the first day of work; Interns, Temporary, and Seasonal Employees will earn PTO each pay period, based on 1 hour for every 30 hours worked.
• Transportation – Pre-tax savings for eligible transit and parking expenses.

Equal Opportunity

All qualified applicants will receive consideration for employment, without regard to race, color, religion, sex, sexual orientation, national origin, disability, or status as a protected veteran.

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