Siret is a PhD student of Estonian University of Life Sciences, whose previous work and studies have been related to the environment and waste. She has worked in a waste management company, where she saw the practical side of waste management. Currently associated with a company that sells packaging and packaging materials, which has given a good overview of what is happening in the world of packaging, and with the green university of the Estonian University of Life Sciences, where her area of ​​responsibility is the promotion of waste management at the university. She has helped institutions create their own waste sorting solutions.