Hello,
I'm Magento certified developer with experience of over 5 years developing custom Magento extensions, theme development, 3rd party integration etc.
I have created many custom modules in Magento projects, ie Marketplace, supplier modules, separate shipping modules. I have successfully launched many Magento extensions in Magento marketplace also.
Due to less space for typing, I’ll keep this short and we can go into more details when we chat.
Thanks
Andrew