Working as SW dev and manager for over 15 years. Extensive experience in development of C# enterprise applications and Oracle database systems using object oriented approach and database optimization techniques. Strong experience and domain knowledge with various industries: telecom (core network, billing software, customer relationship management (CRM), invoice and payment processing), utility (billing software, CRM, invoice and payment processing), traffic (SCADA and reporting). Experience working with fairly large data sets (several TB in size and hundreds of millions of records).