What did George Washington become before becoming president?

In 1749, Washington was appointed as surveyor for Culpepper County, Virginia after a trek for Lord Fairfax into the Blue Ridge Mountains. He was in the military from 1752-8 before being elected to the Virginia House of Burgesses in 1759. He spoke against Britain's policies and became a leader in the Association. From 1774-5 he attended both Continental Congresses. He led the Continental Army from 1775-1783 during the American Revolution. He then became the president of the Constitutional Convention in 1787.