The 35-year old centre-back, who joined the A-League outfit from Polish club Wisla Krakow in August last year, has signed a one-year extension.
The former Sparta Rotterdam, Willem II and AZ Alkmaar man, who represented Holland on 10 occasions, said he was thrilled to commit himself to the Jets' cause.
"My family and I really like it here in Newcastle and it is a very good place for my children to grow up," Jaliens said.
"The Jets gave me the chance to still show myself as a footballer and continue doing what I love most and for that I feel very blessed.
"I've really enjoyed my first season at the Jets. As a team we've had some ups and downs so far this season, but I think now everyone really knows what is expected of them and what they have to bring each week in order to get results.
"The focus now is to make the finals this season and from there we'll take it one match at a time and see where that takes us."
Jaliens has made18 appearances, scoring two goals, for the Hunter club who sit seventh on the 10-team A-League table.
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