Our Company

Wesley Arai, FCAS, MAAA

Irvine, CA, US

Tel: +1 714 9331094

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Professional Designations

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


  • BA, Mathematics – University of California, Berkeley
  • BA, Statistics – University of California, Berkeley
  • MA, Mathematics – University of California, Los Angeles

Current Responsibility

Wesley Arai is an actuary with the Property and Casualty Practice in Milliman’s Orange County office focusing on InsurTech solutions and advanced ratemaking techniques. He joined the firm in 2019.


Wesley’s areas of expertise include:

  • Conducting personal lines ratemaking, product development, and filing support
  • Developing rates and filing support for emerging markets
  • Using advanced rating techniques for catastrophe exposed property
  • Performing competitive analysis in the context of ratemaking and product development
  • Designing and automating insurance processes to improve efficiency and profitability
  • Developing advanced business intelligence reports using data visualization

Prior to joining Milliman, Wesley was an assistant actuary at Farmers Insurance Group, where he managed a team of analysts in the Personal Lines Pricing group. He was responsible for homeowners pricing for several states and was involved with the launch of multiple new insurance products. Wesley also spent time in both actuarial and product management roles at Esurance, focusing on personal automobile.

  • Work at Milliman

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