React native developer to finish app development

I have figma ready and approx 20 screens are already coded in react native,, i am looking for react native developer to add some more screens and also make some changes in previous screens like color ,possition as i said if there are 50 screens then 20-22 screens are coded already . my developer is out of country right now due to emergency situation so he ll be back after a month ! complex app so only experiece ones bid! BUDGET IS TIGHT as i wasnt ready for the situation !