Magento Programmer (Expertise in code required)

Due to unexpected long term illness of our programmer, I am looking for someone who can take over the programming of our Magento based webshop. The shop is not online yet and there are some changes still to be made (navigation, colour selection for the products, etc.)

Knowledge of codes is an important requirement !
Due to the illness of our programmer we are unfortunately running on a tight timeline and would appreciate it if you could start immediately.