Hello,
let me offer you my prestashop skills.
Can you send me list of tasks you need to have done ?
After that i can tell you more accurate price and delivery time.
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I work daily with prestashop over 5 years. I know prestashop from top to bottom. I am familiar with every aspect of this eshop system. Prestashop settings, tweaking, modifiing core and theme files, custom module development, you name it.
You can also check many of my positive reviews here on freelancer.
Thank you for your time.
Best Regards,
Jarda