The CMS Young Scientist Committee (CMS YSC) is planning to organize the fourth internal Job Matching Event (JMEv Fall 2021), in order to help both the young scientists of the CMS Collaboration who wish to pursue a scientific career and apply for a job at another CMS institute, and the senior scientists of the CMS Collaboration who are actively seeking specialized personnel for their groups. Young scientists are encouraged to prepare a maximum of 5 slides containing some of their most interesting research results and their outlining experience in PDF format. Senior researchers offering job positions are encouraged to prepare a short (10-minutes-long) presentation highlighting the structure, activities and interests of their group in PDF format.