The term CAPITOL BLDG. WORKER can be summarized as a Senate employee, abbreviated as SEN. This job title refers to a person who works in the Capitol Building, which is the home of the United States Congress and the legislative branch of the federal government. The Capitol Building is located in Washington, D.C., and is the site of many important political events. A Capitol Building worker is responsible for providing administrative support to the Senate, such as managing records, preparing documents, and assisting with other tasks.