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Olivier Mahieux

Consulting Actuary
Luxembourg, LU

Tel: +352 28 488 486

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Professional Designations

  • Fellow of Belgium and Luxembourg actuarial associations (IABE and ILAC)
  • Professionnels du secteur de l'assurance (PSA) approved manager of actuarial services in Luxembourg
  • Certified by the Ministère de la Sécurité Sociale of Luxembourg to perform the actuarial validation of corporate pension plans


  • DESS Financial Risk Management, University of Brussels
  • Master’s degree, Actuarial Science, University of Brussels
  • Master’s degree, Physics Science, University of Brussels

Current Responsibility

Olivier is managing director and consulting actuary of the Milliman office in Luxembourg. He manages and executes the actuarial activities in Luxembourg, supported by Milliman staff in our Benelux offices. He joined the firm in 2018.


Over the last 20 years, Olivier has held various actuarial and managerial roles, profiling him as a seasoned insurance and pension expert who is highly experienced in Luxembourg and with the European regulatory framework. He specialises in life insurance (including group pensions) covering a broad range of areas such as pricing, valuation, M&A, MCEV, capital modelling, risk management and Solvency II.

From 2010 to 2017, Olivier worked for Zurich Eurolife in Luxembourg, ultimately in the role of CFO, and before that as COO and chief life actuary. He has built up extensive expertise in accounting management, budgeting and strategic business planning, forecasting, treasury, investment management and risk management.

  • Work at Milliman

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