Newcastle United have completed the signing of the forward Siem de Jong from the Eredivisie champions, Ajax.

The 25-year-old Holland international moves to Tyneside for an undisclosed fee and has signed a six-year deal at St James’ Park.

De Jong came through the Amsterdammers’ fabled youth system and has won four Dutch titles since making his debut in 2007, assuming the captaincy in 2012.

De Jong joins the Tenerife striker Ayoze Pérez and Sunderland midfielder Jack Colback in signing for the Magpies this summer.

“We are absolutely overjoyed to bring Siem to the club because he will give us intelligence in the final third and create goalscoring situations, which we lacked towards the end of last season,” the Newcastle manager, Alan Pardew, said.

“It is a big signing for this club. Siem brings massive experience from Ajax. I think our fans are going to enjoy the way he plays and I cannot wait to start working with him.”

De Jong’s younger brother, Luuk, struggled to make an impact for Newcastle after signing on loan in January but De Jong Sr is relishing the challenge of the Premier League.

“It is great to have signed for Newcastle,” he said. “It is a big club which my brother told me all about, so I already feel good here. I had been at Ajax a long time and wanted a new challenge in a new environment and a new country.”