In 2372, Stevens was aboard the Defiant during its mission to the Karemma in the Gamma Quadrant in an effort to establish trade relations with that species. In the course of the mission the Defiant came under attack from a Jem'Hadar attack ship and was forced into the atmosphere of a gas giant with severe damage.
Stevens and Enrique Muniz were together in engineering at the time and assisted Miles O'Brien and Worf in establishing command operations from that location. They were later able to modify the main deflector to act as a phaser array which the Defiant used to destroy the Jem'Hadar starship. (DS9: "Starship Down")
Stevens was played by actor Jay Baker.
In the video game Starship Creator he was called Jason Stevens. According to his biography, he was born on Alpha Centauri to parents Veronica and Albert Stevens. He has a sister named Susan and a brother named Fred.
In Pocket Books' Star Trek: Starfleet Corps of Engineers series, Stevens appears (in the post-Dominion War era) as a crewmember of the series ship, the USS da Vinci. According to these novels, his first name is Fabian and he was born in the United Rigel Colonies.