Professional development of university lecturers plays a decisive role in the quality of training of higher education institutions. Vietnamese university lecturers are required to have a master's degree or higher. Professional development includes many different activities. This study was conducted at Vietnam National University - Hanoi, University of Education (VNU UEd), and simultaneously used two quantitative and qualitative methods. Quantitative methods applied for a survey of 45 random lecturers through online surveys. The qualitative method by making lanterns and surveying sixlecturers who are Ph.D. students. The research results show that there are differences in some professional development activities between lecturers who are masters and doctors as regards the number of publications in international journals
Most doctoral lecturers are willing to share professional knowledge with colleagues
There is an equal proportion of lecturers (Masters, PhDs) seeking advice on professional teaching development, from associations or professional networks, however, the proportion of lecturers with master's degree seeking advice from colleagues and managers is higher than the lecturers who are doctors
The identification of barriers to professional development differs among lecturers (masters and PhDs) on financial constraints, lack of time due to the large workload, lack of information on how to be good at professional development and teaching skills.