Hello there,
I have gone through your project detail, you want to optimizing/indexing databases and upgrade from 1.6 to new version of Prestashop,
Myself having has 10 + years experience of web site development. Expert in Custom programming in php / Mysql / Jquery /Prestashop/ Wordpress/ Joomla / OSC / Magento /OpenCart / Android / Mobile development / Responsive.
Ready to start the work immediately.
I am confident to handle your projects with dedication and good quality.
Thanks and regards,
Harpreet Singh