After graduation, he interviewed at Hoffmann Architects in Hamden, Connecticut. Impressed with the well-dressed, charismatic young graduate, John Hoffmann, FAIA, founder of Hoffmann Architects, recalls telling his colleagues, “You’d better hire him – don’t let him get away!” On November 17, 1986, Kadlubowski joined Hoffmann Architects as a Drafter. A shrewd learner, he quickly earned promotions to Project Manager and then to Group Leader. In 1991, he was promoted to Production Manager, responsible for overseeing six drafters. After becoming a Registered Architect (RA) in Connecticut in 1993, he was promoted to Project Architect. In 1994, Kadlubowski became the temporary manager of the New York office for four months, commuting from New Haven to New York City every day, taking the 5:55 am train to Grand Central and returning late in the evening.
In February 1997, he was offered the opportunity to transfer to the District of Columbia and help to open a new Hoffmann Architects office. On June 1, 1997, the third office of Hoffmann Architects was opened in the heart of DC. With a promotion to Senior Architect, Kadlubowski was responsible for leading the DC office. In 2010, he was promoted to Senior Vice President and Director, Architecture, and he became an owner of the firm in July 2011, one of the first to be offered the opportunity.
A respected expert in the industry, Kadlubowski has served as a presenter for multiple AIA Virginia and AIA|DC events, the National Facilities Management & Technology (NFMT) Conference, as well as International Concrete Repair Institute (ICRI) seminars. Since his first Hoffmann Architects JOURNAL in 1992, he has published several JOURNAL articles on topics ranging from green roofs and energy efficiency to waterproofing and accommodation for building movement. His technical writing has appeared in Papyrus, Building Design+Construction, Buildotech, The Construction Specifier, High-Profile, ERAPPA Newsletter, and Today’s Facility Manager.