Glymin, 22, has recently overcome a hamstring strain which he suffered while making his first-grade debut against the North Queensland Cowboys at WIN Stadium, Wollongong in Round 17.
The local Arncliffe Scots junior joined the Dragons High Performance Unit in 2009 and graduated from the Dragons National Youth Competition team ranks in 2013.
“I am really happy to have the opportunity to continue playing for the Dragons having worked my way up from their junior grades to first-grade over the years,” said Glymin.
“It’s every player’s dream to someday represent their childhood team and I am fortunate that I was recently given the chance to do just that with the Dragons.
“My goal now is to continue contributing to the first-grade squad as well as continuing my development under the guidance of Head Coach Paul McGregor.”