Domain Areas

1. Performance improvement/optimization:

• Multy-server app development for improve scalability
• DB optimization/denormalizations
• Usage indexer for full-text search (Lucene, SOLR)
• Impl. of different level cache
• Background process optimization

2. Integration with 3-rd party systems

• Payment systems - PayPal, MiraPay, TNS, Authorize.Net, Piraeus, Paymentech
• Social Networks - Facebook, Twitter
• Shopzilla
• Zuora
• Affiliate Marketing Services (LinkShare , Commission Junction)
• Single SingOn (openID, etc)
• Salesforce plugin development
• Google API (Picasa, Maps, etc), Flickr API, Metacafe API, Netflix API

3. Business goals tracking

• Integration with Google Analytics, goals funnel tracking
• A/B testing