Brown will leave the job of CIPD assistant director-general in March after five years in the role.
He began his career as a personnel officer with car maker Vauxhall in the early 1980s and then went on to complete an MBA at the London Business School.
Following this, he joined consultancy Towers Perrin, where he developed a formidable reputation for his expertise around pay and reward. Before joining the CIPD, he was chairman of the Institute’s reward forum and is the author of number of CIPD books.
He is also credited with raising the CIPD’s profile during his time in the job, becoming its main media spokesman on people management issues.
It is understood the process of recruiting his replacement has already started.