What kind of job did Martin van Buren have before he was president?

Before becoming president, Martin Van Buren served as the eighth Vice President of the United States under Andrew Jackson. He also held the position of Secretary of State from 1829 to 1830. Additionally, van Buren was a prominent attorney and politician in New York, where he played a key role in the formation of the Democratic Party. His political career included serving as a U.S. Senator and Governor of New York.