"Jefe" is a Spanish word that means "boss" or "chief." It refers to a person who holds a position of leadership or authority in a company or organization. Full definition
In an interview for Poets & Writers, publisher Victor Giron (also jokingly known as El Jefe on the Curbside Splendor website) explains that they «publish a little of everything — urban fiction, creative nonfiction, some poetry, and art books — in all formats, including novels, story collections, essay collections, memoirs, and hybrid books. (subitopress.org)
Hey Senor Jefe: I appreciate what you wrote. (nakedpastor.com)
Rev Mario Felix Lleonart Barroso, a founder of the Patmos Institute, said Captain Erick Francis Aquino Year, the regional Head of Confrontation (Jefe de Enfrentemiento) dealt directly with Alonso. (premierchristianity.com)