Helmke came to Malaysia in 2012 and joined Sabah FA on 16 April 2012, replacing Michael Baird. He scored his first goal for Sabah, converting a penalty in a 1–2 loss against PBDKT T-Team FC on 15 May 2012.
He scored two goals in the Malaysian Super League. The first was in 1–2 loss against PBDKT T-Team FC, the second in a 3–1 victory against Negeri Sembilan FA. After a spell with the Finnish club Jaro, Helmke joined the Norwegian Tippeligaen side Tromsø on a free transfer in August 2013 and signed a two-and-a-half-year contract with the club. In the winter transfers of 2015, Hendrik signed a contract with Esteghlal only to break the deal later for unknown reasons. Later in the same month, he signed a contract for Al Ahly for 3 and a half years.