The owner or the phone +61 434 419 622 seems to be Charlie Hung
forbes.com/pictures/hddf45iih/charlie-hung/?sh=68e488dc7101, Skype contact Charlie Hung
He is a scammer in Australia which is damaging the image of the German company Rocket Internet and the career of dozens of students by posting fake job ads and looking for unpaid interns.
His company (Beijing Qilesi Information Technology Ltd, 1199 Panyu Road, Xuhui District, Shanghai, China) has an existing hiring process with interviews taking place, established partnerships with universities (universities sharing open jobs with its students) and collecting personal data like passport and cv.
If you have received a suspicious call or text, or if you have returned the call or text and you realize it is a scam, you can Report a Phone Call