Job Description

Who We Are

Independent for over 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, mortgage and healthcare financing, risk management and regulatory compliance, data analytics and business transformation.

Milliman invests in skills training and career development and gives all employees access to a variety of learning and mentoring opportunities. Our growing number of Milliman Employee Resource Groups (ERGs) are employee-led communities that influence policy decisions, develop future leaders, and amplify the voices of their constituents. We encourage our employees to give back to their varied professions, including leadership in professional organizations. Please visit our web site ( https://www.milliman.com/en/social-impact) to learn more about Milliman’s commitments to our people, diversity and inclusion, social impact and sustainability.

Milliman’s Milwaukee-based Property and Casualty practice is one of the leading experts in P&C insurance matters. Our consulting work is supported by a powerful toolkit of data analytics solutions and software platforms, informed by years of in-depth work.

The Opportunity
Many of our clients have data about their workers compensation claims, but don’t have meaningful ways to interpret the data, or the ability to predict future claims. Milliman’s Defense Complaint Analytics team is answering that need by building a Python-based machine learning application that will process historic and current client data on claims, fit predictive models, and identify key claims, allowing clients to efficiently allocate their time and resources. This application will soon be migrated from MVP to an Azure resource in the cloud.

As a key member of this enterprise-level development team, the Software Development Intern will gain hands-on experience with Python and C# best practices, learn about managing interconnected resources in Azure, and make meaningful contributions to our codebase. Our ideal hire will bring both programming skills and knowledge of data science to support the design and development of high-quality modeling solutions. While the team is comprised of industry experts, there is no “playbook” for this project – we’re building something from the ground up, and this intern will be a part of it. This is a great opportunity for a constantly curious and driven student to apply the programming and data science techniques they’ve learned to real-world business problem-solving.

This internship is anticipated to be part-time, approximately 20 hours per week for 12 weeks, between January and May 2026 with the potential to extend into the summer.

What We Are Looking For

Professional Qualifications:

• Must be currently enrolled in a Bachelor’s or Master’s program, pursuing a degree in Computer Science, Software Development, Statistics, or a similar technical or quantitative field
• Course of study must include past or current enrollment in at least one data science class, including machine learning (e.g. XGBoost, Bayesian Search, and/or Grid Search) and statistical analysis
• Familiar with developing code, debugging, troubleshooting, and resolving bugs in Python
• Familiar with using SQL queries to analyze large data sets

Personal Qualifications:

• Naturally curious, proactively explores possible solutions and new ideas
• Willing to invest the time it takes to learn about an existing product in order to make improvements to it
• Critical thinking skills, able to think through various aspects of a problem and consider all possible solutions
• Effective verbal and written communication
• Team player; comfortable using Microsoft Teams and Outlook to collaborate with coworkers
• Demonstrates strong personal time management and self-organization skills
• Brings a positive and energetic attitude to daily problem-solving
• Exceptional attention to detail

Preferred (Not Required):

• Understanding of relational database concepts
• Familiar with C# .NET programming
• Familiar with Azure cloud resources and services
• Knowledge of Git version control concepts
• Experience working with DevOps project boards (Scrum/Agile methodology)

Location
This role will be based in our Brookfield WI office. We expect this intern to work onsite in our office at least one day per week (Tuesday and/or Thursday) during the spring semester of school year 2025-26. Some remote work may be possible, but no relocation assistance will be provided (i.e. candidates must be in the Milwaukee area).

The expected application deadline for this job is November 30, 2025.

Compensation

A combination of factors will be considered to determine the compensation for this role, including, but not limited to, education, relevant work experience, qualifications, skills, certifications, etc.

Milliman Benefits

We offer competitive benefits which include the following based on plan eligibility:

• 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, gender identity, national origin, disability, or status as a protected veteran.

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