Some of the different types of clinical research jobs include clinical research associates, coordinators, data managers, clinical nurses, research scientists, and biostatisticians. There are also administrative, managerial, and recruitment positions. As a research associate, you monitor the clinical trials and the people administering them, such as clinical nurses and research coordinators who work under the direction of the principal investigator. As a biostatistician, your duties are to collect data about the study and analyze the results to determine if the medication or treatment shows statistically significant effects on participants.