A research fellow is an academic research position at a university or similar research institution, usually for academic staff or faculty members. A research fellow may act either as an independent investigator or under the supervision of a principal investigator.
In contrast to a research assistant, the position of research fellow normally requires a doctoral degree, or equivalent work experience for instance in industry and research centers. Some research fellows undertake postdoctoral research or have some moderate teaching responsibilities. Research fellow positions vary in different countries and academic institutions. In some cases, they are permanent with the possibility of promotion, while in other instances they are temporary.
In many universities this position is a career grade of a Research Career Pathway, following on from a postdoctoral position such as Research Associate, and may be open-ended, subject to normal probation regulations. Within such a path, the next two higher career grades are usually senior research fellow and professorial fellow. Although similar to the position of a research fellow, these two positions are research only posts, with the rise of the career grade there will normally be a formal requirement of a moderate amount of teaching and/or supervision (often at postgraduate level). These positions are for researchers with a proven track record of generating research income to fund themselves and producing high-quality research output that is internationally recognised.
In some universities, research career grades roughly correspond to the grades of the Teaching and Scholarship Career Pathways in the following way: research fellow—lecturer, professorial fellow—professor, whereas senior research fellow is somewhere between a reader and a senior lecturer. However, at some top universities, a senior research fellow may be a position of comparable academic standing to a full professorship at these universities, without any teaching requirements.
In the past, the term research fellow often referred to a junior researcher, who worked on a specific project on a temporary basis. Research fellows tended to be paid either from central university funds or by an outside organisation such as a charity or company, or through an external grant-awarding body such as a research council or a royal society, for example in the Royal Society University Research Fellowship. Particularly in Oxbridge style colleges, research fellows appointed as fellows of a college tended to, or still do, partially receive remuneration in form of college housing and subsistence. Colleges may award junior research fellowships as the equivalent of post-doctoral research posts, lasting for three or four years. In contrast, senior research fellows tended to be established academics, often a professor on sabbatical from another institution, conducting temporally research elsewhere.