Specialties:* PERL, Java, Spring, BatchIO, Hibernate, Oracle, and PL/SQL.* In-depth knowledge of E-Commerce Payment system (from client point of view), including:(understanding/impementation of) various types of transactions, interactions with further downstream Payment actors (gateways, processors, networks, etc.), settlement, reconciliation, chargeback processing, and additional back-office activities required to run payments on enterprise scale.* Architecting and development of PCI-compliant software.* Implementation of encryption/decryption mechanisms for storage and retrieval of payment instruments.* Representation of new and existing architecture in yearly PCI compliance audits.I have extensive QA Background.I have historically been a generalist and a quick learner.I prefer analytical and methodical approach.Former Quality Assurance Engineer with extensive experience in manual and automated black box, as well as white-box testing.I currently work as a Software Engineer and plan on continuing my career in this capacity.