Dear Sir/Madam,
I worked with several multinational companies on various technologies and in various functional domains. I had designed & developed (all by myself) a distributed search engine based on Apache Lucene & Apache Cassandra.
If you are really interested to develop a search engine like Google/Yahoo/Bing, then i am pretty sure i you will find no better a freelancer than myself for i have had past experience in developing such distributed search engine and am myself planning to launch into action soon.
If on the otherhand, you meant to incorporate search feature in your existing web application instead of developing a search engine from the scratch, then please ignore this bid and pick a better alternative in that zone of work.
Regards,
Samba