Good Morning Sir,
Here is Michele Cimmino from Italy I'm the owner of an individual software firm.
I can provide more than 10 years of exp and passion in IT and web-mobile technologies, that's why i handle very well ANDROID, iOS (Cordova-PhoneGap), PHP5, Javascript, Jquery, HTML5, XML, CSS3, MYSQL, JSP, Python, C, C++, Java etc.
My proposal for this maintenance is to use free HTML5 API to implement the geolocation and Jquery (or native javascript) - PHP5 to add category/subcategory to your site.
About the installations I don't think there are issues, anyway I need more details.
Cause of my degree in information technology I know exactly how to build up a software according to the principles of software engineering.
I speak / understand english very well.
I work with mobile applications, web applications, websites, ERP and web security too ( prevent SQL injecting, rainbow tables, brute forcing, DDOS).
The quality of projects that I product is the strength of my company, because software, per definition, is the most maintainable and obsolescent product that exists.
Pls take a look to my CV on my profile to understand the quality of works that I made.
As you can see I passed with good marks a lot of exams on freelancer, this is a garancy of my skills.
Feel free to contact me, anytime, for any question.
Hire me for clean, smart and lasting solutions!
Regards, Michel