Hong Kong App developer

we are looking for someone to develop an app for our
company. we are a steel fixing company based in
Balmain NSW. The main goal of this app is to cut out
the middle man and not have to deal with recruiters by
having employees on one database that will send them
notifications of upcoming steel fixing work etc.
Android, iPhone, Mobile App Development, Objective C,
PHP
I see your above requirment