There is a wide variety of jobs at universities. The majority of employees at universities are academic staff, such as assistant, associate or full professors, postdocs and PhD candidates. If you desire an academic career at a university, the most logical step after gaining your Master's degree is to become a PhD candidate.
To support research and teaching at universities, there is also a need for non-academic staff such as experts in HRM, communication, IT and finance.
When employed by a university, you contribute to academic teaching and research. AcademicTransfer lists all of the university job openings.