Dear friend
I am Linh, Top Joomla Developer from Vietnam.I have worked and had much deeply experience in upgrading Joomla site from 1.5 to 3.3.6 [latest version] , protect it with firewall as well as make it Responsive on tablet/mobile device. You can check these related jobs which I’ve done
All milestone payments only released all after you are satisfied about final results. You will have daily or hourly update about your project.
What step I will do for you
+ I can develop Joomla Component, Plugin, Module, build new feature for scrap, decode data, make API for system, create payment gateway plugin, PDF Generate...
+ I can fix CSS, JS Error, legacy, compatibility with all browsers
+ Create Responsive template for mobile/tablet device with new visual views. You can check directly in development time
+ Make sure all SEO Links work greatly as old site
I guarantee
+ Clean code, native responsive layout, works well with all mobile and tablet device
+ Full document and guide after moving it to production site
+ Have warranty you at least in 3 month for supporting free
+ Good in English and keep to reply you within 1 or max 2 hours
I really want to work with you on this project so looking forward to starting now. Thank you for your attention
Developer
Linh