Full Stack Developer with intense experience on Software API development, Web Service and Application Integration with Scalability and high availability.Experienced on Web Application and Enterprise Integration with Spring framework and building up web application for request based MVC model with servlet 3.0 async support and flow sensitive Web flow model. Using AOP (Aspect Oriented Programming) for work flow logging and monitoring with JMX. Isolating between message senders and receivers in high volume transactions system by Rabbit MQ with AMQP. Developing the batch job process logic for handling extremely high-volume of data with high performance by spring-batch and Quartz scheduler. Providing secured web service and client by spring-ws and also REST communication by spring-webmvc and restTemplate client.Design highly reconfigurable and reusable application by workflow with SOA(Service Oriented Architecture) through analyzing work process into small activities which are connected each other by message queue built through Ehcache.Develop stand alone client service to talk ERP account system by spring boot with embedded tomcat server, so customer can run the client just from out of box without configuring java web server.Develop AddressBook Handheld Application and API by Qt and Cascades to display and configure composite contact information. Backend AddressBook Sync engine development with Python Bottle framework and http lib for communicating with client and remote servers and sqlite database with SQLAlchemy Python SQL toolkit and ORM.Also experienced on Test Driven Development with unit test, performance test and end-to-end integration test. Testing unit level by JUnit for java, gmock for C++ and Python unittest and measuring performance / throughput by Apache JMeter and covering end-to-end test with robot framework and selenium Agile Software Development Practice with ScrumSpecialties: Java, Spring Framework, Hibernate, C++ and Python