MPAndroidChart developer needed to start now

Budget:20$,please apply only if u have MPAndroid chart experience and firebase,miniumum of 3+ years. Pull values from Firebase and show group bar graph chart,each bar has 3 values on x axis and 3 values for y axis, graph depending on subjects,show subjects from firebase,screen already there,click on subjects should change graph values from firebase. Water front graph,looking for long [login to view URL] find attachment. Bitbucket,push code,review code,release milestone. Need to start now.