I have over 20 years of experience working in IT. Over 10 years in Australia as a contract programmer for companies like NAB, Bosch, etc. I am now based in Malaysia.
I am very good at communicating with clients and understanding and solving complex problems.
Your spec requires more detail. Working with other people's code is normally OK unless it is very badly written. Enhancing search tool, do you mean more search criterias (and , ors, wildcards, etc). Save via Ajax is simple.
I have extensive experience with PHP, Javascript, JQuery, Responsive design, Ajax, CSS3 & mySql.
I prefer projects where the clients are ready to go and committed to finishing the project ASAP.
I do all the work myself and don't subcontract.
In my last project, my German client told me his programmer estimated one month for the project. It was a complicated PLC system interfaced with a CSS 3D UI. I quoted 6 days. We finished the project in 10 days due to delays by his programmer. He said I was the first programmer that chased him to finish the project.
We need further discussion to confirm if my assumptions are correct, your requirement is met and if your budget and my bid is reasonable. Lets talk more. Initially I would like to use Skype to get to know the client and see if we are comfortable and can communicate well with each other. Thank you for considering my bid.