Dr. Hauke Stier
PhD
Senior Consultant
Düsseldorf, DE
Hauke Stier joined Milliman in 2025 and previously completed an award-wining doctorate in financial and insurance mathematics.
Experience
Hauke holds a PhD in Financial and Insurance mathematics from the University of Oldenburg. His actuarial expertise includes:
- Extensive knowledge of financial mathematics, especially in stochastic calculus, cash flow valuation, and numerical integration
- Contributing to multiple scientific papers in the field of stock option pricing and decomposition of profits and losses of insurance companies
- Comprehensive knowledge of insurance mathematics and experience with business transactions
- Leveraging advanced programming skills in R to perform comprehensive simulation studies
- Supporting data processing activities, including within the context of a DAV working group
- Preparing benchmark studies and reports
Professional Designations
- In the process of becoming a qualified actuary DAV, German Actuarial Society (2028).
Education
- PhD, Financial and Insurance Mathematics, University of Oldenburg (2025)
- Masters, Mathematics, University of Oldenburg (2021)
Publications
Read their latest work
Article
Concrete use case of Milliman Mind as reference calculator
12 February 2026 - by Thomas Kaufmann, Dr. Hauke Stier, Mete Karabulut, Edward Mout
We present a practical use case of Milliman Mind as reference calculator for migration test cases and balance sheet projections.
Article
Cyber threats, insurance and DORA
10 November 2025 - by Eamonn Phelan, Dennis Sieg, Dr. Hauke Stier
Cyber insurers—using DORA for guidance—can ensure good cyber risk management practices through strict policy conditions while minimizing client claim volatility.