Rerimna has a background in tourism education, particularly in tourism planning and management. I previously worked at an NGO focused on conservation and education as a program coordinator. In this role, she planned and conducted learning sessions covering topics like ESL, sustainable agriculture, business skills, and conservation. She also assisted with operational tasks such as liaising and negotiating with partners from various organizations and rural communities, and was involved in reporting commitments to the Board of Trustees.

Currently, she works at WRI as a Project Operations Assistant, mainly handling administrative tasks for the Bali project. This includes managing project documentation, coordinating logistics, and process the payments and managing invoices.