Elvis is a lawyer in charge of the department for the Rights of Environmental Defenders and Indigenous Peoples at the NGO Brainforest. He has been working with ClientEarth since 2021 as project manager of the project "Establishing legal foundations for sustainable forests and livelihoods".

Elvis started his professional career in 2012 as a legal trainee in a project related to the promotion and protection of the rights of forest communities. In 2015, the Food and Agriculture Organisation recruited him as national consultant for the mid-term evaluation of a project on wildlife management and the bushmeat sector. Among other things, Elvis has been trained in marine mammal watching.