Márcio Nunes is a Director at Valid S.A. at Valid S.A.. He possess expertise in telecommunications, smart cards, it management, product development, management and 23 more skills. Colleagues describe him as "It was a pleasure to work with Marcio at Certisign. He is an example of professional regarding the aspects of ethic, technical knowledge, behavior, ownership, people management, dedication and very strategic mind. I had learned a lot with Marcio s presentations and meetings and he is a leader by example." and "Trabalhar com o Márcio foi uma grande oportunidade de aprendizagem. Ele é profundo conhecedor da tecnologia da certificação digital e profissional bastante responsável, detalhista e que respeita sua equipe."