•Deep understanding of Object-Oriented design, data structures and programming concepts.
•Expert-level Java experience with common frameworks (Spring, Hibernate, etc.) 
•Deep understanding of multi-threading and high concurrency designs.
•Very clear understanding of Service Oriented Architecture and REST principles.
•Experience with SQL and relational databases
•Understanding of XML, JSON, DOM, and other W3C standards.
•7-10 years of related experience.
Desired Skill:
•Data warehousing and  BI
•ETL & Data preparation
•Amazon Web Services
•Experience designing and implementing SaaS or PaaS offerings
•Automation unit tests (JUnit).
•Build systems (Maven/Ant).
•Continuous integration (Jenkins).
•Experience with Agile software development and Test Driven Development methodologies.