Company Description. Citizen Rail, a grill-centric restaurant and bar, is operated by Limelight Denver by Aspen One. An open kitchen and Josper coal-fired grill are the center of the action at Citizen Rail, and guests in the dining room get a front-row seat to the show. Out on the heated patio there’s a lively scene all its own. cozy and sociable, it’s an ideal perch for a Union Station happy hour, dinner with friends or weekend brunch. Job Descr...