A postdoctoral position is a job usually taken up after completing a Ph.D. that could last between 3 to 5 years. The position is usually referred to as a postdoc position and is often termed a postdoc. The “postdoc” phrase is usually deemed derogatory as it refers to something of a low-paid job as soon as one completes a Ph.D. The temporary position ranges from a few months to 5 years. The tenure length depends on the university’s funding from the group leader and investigator.