I build large-scale data warehouses and then implement data mining/machine learning services on top of them - recommendation / prediction / decision engines / etc. For example - to analyze and predict customer behavior.
I use hadoop (including mapreduce) and nosqls (including hbase), mostly apache stuff. I do integrate my own code into it.
I started with processing large amounts of data in 2000, at a major mobile telecom here in Bulgaria. I left the company in 2007 to do freelancing. Last year I established a small consulting company.
Unfortunately, I'm afraid the lowest possible bid I can do is $20/hour (not including freelancer.com's fee).
If you're still interested in discussing your project - please don't hesitate to contact me, thank you!
Best Regards,
Andrey