Callista has joined the deparment of Planning and Environmental Law as an attorney-at-law in 2025. She specializes in environmental law.
Callista obtained her Bachelors of Laws from the Eramus University Rotterdam. During her bachelor she also spent a semester at the University College of Cork, in Ireland. She received her Master of Laws in 'Law and Sustainability in Europe' from the Universiteit Utrecht and her second Master of Laws in 'Constitutional and Administrative Law' from Leiden University.
During her studies, Callista gained several years of work experience in the legal profession, including one year at Pels Rijcken.