Majaneva works as a project manager in environmental impact assessment (EIA) and environmental and chemical safety permitting projects, as well as a process engineering expert, particularly in industrial projects. She has previously worked as a Senior Process Design Engineer in the process and chemical industries, as well as a wastewater expert in industrial projects. Her recent tasks have included serving as an EIA project manager n hydrogen projects, such as those involving Power-to-Gas and Power-to-Liquid technologies.