Eingesetzter
Eingesetzter is a German term derived from the verb einsetzen, meaning to place into service, deploy, or appoint. The word functions as an attributive adjective (e.g., eingesetzte Kräfte) and, in some contexts, as a substantive noun referring to a person who has been assigned to a post or task. As a noun it is formed by capitalization (Eingesetzter) and is typically used in formal or bureaucratic language to denote someone who has been deployed or put to work.
In everyday and official language, eingesetzter describes something that has been put into use or assigned
Eingesetzter agrees with the noun it describes: masculine singular eingesetzter, feminine eingesetzte, neuter eingesetztes; plural eingesetzte.
The term combines ein- (into, in) and setzen (to set, place). The related participle eingesetzt is used
The nuance centers on deployment or assignment to a duty or function, rather than mere presence.