Samuel Johnson Jr. is the senior managing director for Mangfold Group LLC, a management and security consulting firm. He is a former Baltimore police officer and Maryland Courts judicial officer. He has held executive-level management positions with the Baltimore Fire Department, the Baltimore Mayor's Office of Emergency Management and Baltimore Housing.
In 2016, Johnson was recognized by the Baltimore Business Journal as one of Maryland's top 40 business professionals under the age of 40. He holds a graduate degree from Johns Hopkins University.