Youth
Maignan played in the lower categories of Paris Saint-Germain before being promoted in 2013 to the first team. He participated in the 2013–14 UEFA Youth League in which his team reached the quarter-finals, being eliminated by Real Madrid.
Senior
In July 2013 he signed his first professional contract with Paris Saint-Germain, which consisted of a period of three years, ending in 2016.
