Custom wordpress website

I need to update an already existing WordPress website. The website has custom post type. The user submit form filling up the CPT. The update will include but not limited: Make changes to already existing CPT and change submit form. Make changes to website design. Create a widget for frontend user to share their listings Make currency conversion (crypto) for a filter system (already working but we are adding currency) Debug Cron Jobs for email sending and daily update of onsite info ***Must be good with API*** This project have multiple task that have to be done. Contact me for more info.