Job Description Job Description Description: For over 75 years, Joseph J. Magnolia Inc. has proudly served the DC metropolitan area as a premier contractor specializing in commercial new construction, providing expert plumbing and mechanical solutions to our customers. We believe the best service starts with the best people, so we hire the best and invest in their success. Joseph J. Magnolia (“JJM”) is currently seeking an experienced Mechanical Pipefitter to join our New Construction team. Thi…