Tim Mohr, an American who worked as a disc jockey and freelance writer in Berlin in the 1990s, diving deep into the city’s fervent post-Communist underground, before using his experiences to turn out sensitive, award-winning English translations of works by up-and-coming German writers, died on March 31 at his home in Brooklyn. He was 55.

His wife, Erin Clarke, said the cause was pancreatic cancer.

Mr. Mohr arrived in Germany in 1992 with a yearlong grant to teach English. He did not speak a word of German, so the program sent him to Berlin, a melting pot of cultures where English was often the second language.

He stayed for six years. By day, he worked as a journalist for local English-language magazines, including the Berlin edition of Time Out; at night, he was a D.J. in the city’s ever-expanding club scene.

He later remarked that his time spent traveling among Berlin’s many underground subcultures gave him a thorough education in a form of street German that set him up to work as a translator.

One of his first major translation projects, in 2008, was “Feuchtgebiete” (“Wetlands”), a sexually explicit coming-of-age novel by Charlotte Roche packed with raunchy, idiomatic slang that only someone with Mr. Mohr’s background could render in English.

“I read the book for the eventual U.S. publisher when they were considering buying the rights,” he told The Financial Times in 2012. “And I said to the editor, ‘You know, you’ll be hard pressed to find an academic translator who is as familiar with terminology related to anal sex as a former Berlin club D.J. is.’”