Career
On 22 March 1572, Fletcher became a lecturer in King's and held this position until March the following year, until he became a lecturer in Greek, a position which he held until Michaelmas term 1579. Continually rising within the academia, Fletcher rose to dean of arts, the highest position he was to attain at Kings, in 1580-81. However, this would not last long, for he decided to marry, forcing him to give up his fellowship.
During 1582 Giles was made chancellor of the diocese of Sussex.In 1584, Fletcher was elected to the parliament which began on 23 November, for Winchelsea, one of the Cinque Ports.
During his stint in Parliament, Fletcher served on three committees. In 1588 he was an ambassador to Russia to reestablish the treaty with tsar Feodor I of Russia. Fletcher published a treatise, Of the Russe Common Wealth (1591). The treaty to be reestablished was primarily concerning the English trade, but before he departed Queen Elizabeth made him a Master of Requests.