You will be required to fine tune the web server and Magento store to run fast, setup and install Magento store with store views and multiple currencies.
There will be a complex pricing module need building. This store will be selling gold jewellery. Gold price changes on a regular basis, you will need to take a XML feed of daily prices and update the pricing on the store regularly. Also on the pricing structure, each product will need will be calculated by defining the gold purity multiplied by cost, plus profit margin. 2 weight fields will need to be provided. One for internal use and one that customers sees.
There will be a News module to be implemented, carousel slider on the homepage and other sub pages. Payment gateway integration. You will need to know how to use Git to commit all your code changes.
Communication is utter most important. I will need to speak with you on Skype, email and phone on a regularly basis on project updates. Please make sure you are experienced in Magento development before applying.