Greetings,
I have gone through all your requirements and and i understand what you are looking for . I will make this functionality in PHP and Msql database. Its not just a script its a big project to get each and every thing from jira and put it into yours site and vice versa. Before start the project i also must work some research that jira provides such facilities or Api available for that or not. Please inbox me if you flexible with your budget.
I have 10 years of experience in web development and i am expert in my domain areas like php advance frameworks, laravel, codeigniter, and hands on in all CMS like wordpress, drupal, magento, weebly, php motion, joomla, opencart , woocommerce, big commerce etc.
I have extensive knowledge of html5, css3, javascript, ajax, jquery, bootstrap, and payment integration modules.
I am available 24/7, so you can contact me any time round the clock to discuss the project.
Many Thanks
Danish Hameed