Our Company

Jeffrey A. Courchene, FCAS, MAAA

Principal & Consulting Actuary
London, UK

Tel: +44 20 78471500

E-Mail | Download bio | VCard

Professional Designations

  • Fellow, Casualty Actuarial Society
  • Member, American Academy of Actuaries


  • BS, Mathematics, University of Denver
  • Jeff is a native speaker of English, but also speaks fluent German.

Current Responsibility

Jeff is a Principal & Consulting Actuary in Milliman's London office. He rejoined the firm in 2001.


Jeff's area of expertise is international property and casualty insurance: particularly reserving, reinsurance analysis, mergers and acquisitions, and dynamic financial modeling. Jeff has extensive experience in matters related to both personal and commercial lines of business in continental Europe, the United Kingdom, the United States, and the Middle East. His experience includes leading:

  • the regular review of reserves, reinsurance structures, and pricing level of various (re)insurers
  • due diligence assignments in both established and emerging markets
  • dynamic financial modeling projects for (re)insurers in terms of design, calibration, and validation

Jeff is an author and frequent presenter on actuarial topics including:

  • "Integrating Reserve Variability and ERM: A Case Study" ICA 2014
  • A primary author of the IAA monograph, "Discount Rates in Financial Reporting – A Practical Guide"
  • A contributing author of the IAA monograph "Stochastic Modeling - Theory and Reality from an Actuarial Perspective" and speaker for the European Actuarial Academy (EAA), 2011-2015, based on the IAA monograph
  • "Solvency II – Things we should be thinking about" GIRO 2012
  • "The importance of assumption consistency when back-testing or using other validation techniques" GIRO 2010 and 2011

Jeff began his career with the Denver office of Milliman in 1993, where he worked until 1997 and again from 2001 until 2005. From 1997 until 2001, Jeff worked for The Cologne Re in Cologne, Germany, where he was the primary reserving actuary responsible for monitoring the U.S. and U.K. subsidiaries of The Cologne Re, with specific responsible for reserving multiple lines of assumed and retroceded business, and where he also served as a liaison between the U.S. and German actuarial departments.

Since 2005 Jeff has been based primarily in Europe but has also worked in the Middle East.


  • Jeff is involved in committee work of the Casualty Actuarial Society (US) and the Institute and Faculty of Actuaries (UK). Jeff currently serves on the Executive Council of the CAS as Vice President International. He serves as the CAS representative to the Institute & Faculty of Actuaries General Insurance Board.
  • Work at Milliman

    • “I was offered a chance to come in, shake things up, create something."
    Work at Milliman