Abstract The COVID-19 pandemic required the restructuring of educational models, including the rapid transition from face-to-face to remote education. The aim of this qualitative research was to understand the effect of the COVID-19 pandemic on undergraduate professors’ work and health at a public university in the state of São Paulo. Semi-structured interviews were conducted with 17 undergraduate faculty of humanities, biological and exact sciences form August to September 2020. The interviews were recorded and transcribed. From the content analysis, four thematic categories emerged: (1) changes in the work routine and their impacts, including adjustment to remote work and the difficulties in establishing boundaries between work and their personal life; (2) changes in the dynamics between faculty and students and the possibility of rethinking teaching practice; (3) the relationship between faculty and the university with emphasis on the decision-making process, support for the transition to remote teaching, and concerns about the quality of teaching; and (4) anguish and fears related to the pandemic that added to the set of work-related stressors. Our findings showed that actions towards the communicational dynamics, as well as actions towards faculties’ mental health should be implemented.