The phrase "young hotshot" refers to a person who is young and overly confident, often with a lot of success or talent in a particular field. They are seen as being ambitious and eager to prove themselves. Full definition
Our 2013 edition of the list features young hotshots who are rocking businesses as diverse as air travel, natural gas, and genetic coding, as well as — if you can believe it — government. (fortune.com)
Brad Pitt turns up as Ben Rickert, a dispossessed trader brought in to act as mentor / facilitator by a pair of young hotshots (John Magaro and Finn Wittrock) who sniff out the opportunity. (thefilmyap.com)
Arsenal's hopes to transfer young hotshot attacking midfielder Marco Reus are not yet gone even though reports have appeared saying that Marco Reus has signed an agreement with Dortmund and is due to join them in the summer. (arsenalbanter.com)