Maguelonne specialises in dispute resolution, with a focus on international commercial and investment treaty arbitration and expert determination proceedings. She has represented clients from the renewables, oil and gas, TMT, automotive and construction sector in arbitrations under ICC, LCIA, UNCITRAL, and JCAA Rules. She has considerable experience in the energy sector, having previously spent over a year in Herbert Smith Freehills' corporate energy department. She has also advised on crisis management matters as well as matters of public international law.
Maguelonne has worked in Herbert Smith Freehills' offices in Tokyo, London and Paris. She speaks English and French fluently and Spanish at an intermediate level and is currently learning Japanese.