Lindenfeld came to Rutgers in 1953. He became a professor in 1966. At Rutgers, he researched metals, with a particular focus on
superconductivity. During his time at Rutgers, he made an effort to be a bridge between research and teaching, which included mentoring high school teachers. In 2011, Lindenfeld and Suzanne White Brahmia authored the high school textbook,
Physics: The First Science. ==Personal life and death==