I have a great experience on creating web-agents, crawlers and scrapers for web sites of different complexity (see my past projects for examples).
Past 2 years I mostly work with Python.
Oleksii M. has added 5 portfolio pieces. Create an account to review them.
Fetching old feedback comments from Amazon Feedback pages
PHP/MySQL database driven web data mining and analysis
PHP Programmer for Web-Crawler
Advanced PHP Test
oDesk Readiness Test for Affiliated Contractors