The 26-year-old forward signed a four-year deal for a fee believed to be £3million and sat in the Parkhead stand on Wednesday night as the Hoops beat Elfsborg 1-0 in the first leg of their Champions League third qualifying round tie.
Speaking with some confidence at the club's Lennoxtown training complex on Thursday, the former RKC Waalwijk player revealed his disgruntlement at falling out of favour at Ajax and insisted he is looking for a regular place in the Hoops' starting 11.
"I really wanted to leave Ajax and there was a lot of interest from other clubs, but when Celtic came I didn't have to think long," he said. "Celtic is a very big club in Europe. In Holland we know them well.
"When I went to Ajax I played very well and even made it to the national team. But because of a back injury I was out for a couple of months and when I got fit again it was hard for me to get back to my old level.
"Eventually the coach put me on the bench and at that point I thought 'I am too good to sit on the bench, I want to play'.
"I want to play every game. I don't like to sit on the bench. I spoke to him about my situation, I wasn't happy about it. So for that reason it was better for me to leave.
"It is a new opportunity for me to play and to play well, and I hope the coach of the international team will visit me and see what I am capable of."