He notably played in the Premier League for Arsenal, in the Eredivisie for Sparta Rotterdam, Vitesse Arnhem and NAC Breda.

Born in Leiden, Helder played for Sparta Rotterdam and Vitesse Arnhem of the Eredivisie before joining Arsenal on 14 February 1995.

Helder made 27 league appearances for Arsenal, plus 12 as a substitute, and scored a solo goal for the club in a 3–2 win over Middlesbrough.

[2] Helder then moved to NAC Breda in his native Netherlands and, after a short spell there, he went to play in China for Dalian Wanda FC.

[2] In July 2006, Helder made a surprise appearance for Arsenal in Dennis Bergkamp's final game, a testimonial against Ajax.