For four years worked on paswordles logging solutions for the banking sector.  Basic premise was to utilize the keys stored in a secure enclave of the user's smartphone as login credentials for the high value asset (e.g. e banking website, ssh login ...). Project consisted of backend running Amazon beanstalk, blockchain ledger, Android  and iOS smartphone applications and the logging asset interfaces  (e.g. javascript implementation). Took part in almost all parts of the system.  During faculty studies on Electrotechnic and computer science faculty in Belgrade workers as student demonstrator on System programing course and Operating systems course