The 30-year-old joined Mitra Kukar in Liga 1 after leaving Blackburn Rovers following their relegation into the third tier last season.
Guthrie - who scored nine goals in 104 games for the Magpies between 2008 and 2012, and was part of Newcastle's 2009/10 Championship-winning side - has also played for Liverpool, Reading and Fulham during a 12-year career in English football.
“Ever since I was young I have wanted to play abroad, it's just always been an ambition for me," Guthrie told planetfootball.com.
“Now is the perfect time. I am 30, I have two young children, who are seven and four, and a wife who also shares the same ambition to travel, so from a family point of view it's perfect.
“From a career point of view, in England I have achieved all I can. I played for the team I love, Liverpool, played for a massive club in Newcastle, and played in the Premier League or Championship my whole career.
“I didn't have the same excitement or hunger to play in the Championship or League One where the offers were coming from.
“There was nothing for me to prove. The only way I could ever play in the Premier League again was to be promoted, and I didn't see that happening."