This is a simple job which knows the PHP, SEO and using htaccess properly. In the existing php script, you need to make little changes...
a) Title of the page created according to the Job Posting Job name, country.
b) Keywords and Description meta tags need to be setup according to the job posting data.
c) Make the URL of job posts search engine friendly using htaccess or some addition in the script without affecting the other url's which not related to jobs posts.
d) Posted Email address need to be secure from spammers (script for that will be provide by us, you need to implement).
You can visit the url of the script for which we are talking - <[login to view URL]>
Everything will be w3C compatible and search engine friendly. Server access will not provided, so you have to co-operate with me to do this task and i will upload on the server.