I need core android developer

I need core android developer who understands android core development, AAb and google play store publishing in a deep level We are _not_ using android service studio - no lightweight android front end developers respond please. Only android devs that can use command line and really understands how deploying works in google play store Work will be to take existing apk and provide instructions (and coding changes where needed) to take generic finished apk (android app) and make aab with asset pack please provide fixed price quote. only capable android developers respond please