Ricardo Calado worked for eight years under the supervision of Bárbara Bulhosa, first in administration at a bookstore and then as an editorial assistant. Bulhosa emphasizes Calado's strong human and professional skills, noting he proved extremely competent and a great asset. Calado displayed admirable responsibility, followed directives well, and had great teamwork abilities. Bulhosa also praised Calado's wide general culture and intellectual qualities, saying he has the precision and professional awareness to be an excellent mathematics teacher.