Stephen Jiang Email & Phone Number

Montreal, Canada Area

Risk Model Control System and Document Management. Java 8, Hibernate, Spring Boot, Spring Config, Spring JPA, Spring executor, Jenkins automation, container, Linux shell script, yaml configuration, Microservices, JMX, sybase, db2, Selenium, Cucumber and cloud ready apps.

Pavilion Financial Corporation is a diversified global investment services firm, which develops and maintains its unique trading systems.My responsibilities1. Migrated source control from CVS to Git, managed the git repositories, implemented the continuous integration platform by setting up Jenkins, Nexus, migrated build process from Ant to Maven, and documented these processes.2. Introduced the crucible code review among developers, supervise the best practice for coding, and normailized the release process.3. Learn the trading business including the OMS, Portfolio Transition System, and Back office System, and designed, implemented the new requirements. Technologies: FIX protocol & Engine, JBoss EAP, Hibernate, Oracle10g, JMX, Git, Maven, Ant, Java Swing, Eclipse RCP, Quartz, Apache Common Utilities.

Montreal

Yellow Page Business Center Portal is a website which allows the customers (mainly small and medium enterprises) to customize their business information (logos, photos, videos and text info) through the DIY web based interfaces. The customer information is retrieved from and stored into backend data stores via ESB. Technologies Used: Tomcat7 + Liferay6, SOAP Web Services (CXF), Spring RESTFul Web Service, JSON, XML Schema, WSDL, JDBC, MySQL, Spring MVC, Spring Repository 4.x + Hibernate 4.x, Multithreading, Java Collection Framework, JUnit, Mockito, PowerMock.

Montreal, Canada Area

Nuance VMCS is Nuance incubated Voice Message to Text system, which receives voice messages, transcribes, audits them, and finally returns corresponding text messages to the customers. VMCS contains many distributed components communicating with one another via RESTFul, SOAP services backed by Jetty and Jersey REST framework. It is capable to handle millions of voice messages per day across one the data centers. During the SDLC, the message queueing, multithreading, memory management, security, performance, potential memory leaking, and product robustness are the main concerns.My Responsibilities:* Use Core Java and Collection framework to queue the messages from upstream components, and use multithreading techniques like (spring task scheduler, ThreadExecutor) to send messages to downstream components after computing the result. * Implement a generic xml format message communicated and understood among all distributed components: downstream components take the attributes calculated from upstream ones and compute other attributes needed by its downstream components, message are correlated by the unique message id. If the source component doesn’t receive the response before message timeout, message is resent until desired result is obtained. * Use spring configuration to initialize all beans needed in each distributed components, apply spring transaction + jdbc repositories + hibenrate for the MySQL database transaction. * Use ActiveMQ to implement the subscribe/publish pattern to propagate real-time transcribing agent status changes to the components in which agents are logged.

I worked on Covisint Healthcare Project, a tremendous project that involves hundreds of people. I was proud that I was part of it. The customized HIE (Healthcare Information Exchange) derived from Healthcare core projects are NHIN(National Healthcare Information Network) compatible nodes. NHIN is a could computing environment that enables patient clinical document sharing among HIE(s) using the standard XDS.b defined by IHE. Being an NHIN compatible node means the patient information can be shared and retrieved among authorized HIEs.

Ph.D student in the field of Service(WebService & RESTful Web Service) Composition and Cloud Computing. Using the industrial technologies such as BPEL, ESB(ServiceMix, JBOSS ESB), and I am currently involved in new work called MAPL(Message Adaptor Processing Language) which can be finally served a plugin for JBI and JBOSS ESB for the message transformation mechanism.

• Master-Card Revenue Waiver –Oct 2010 to Jan 2011 This is Master-Card internal web application used by the account managers to manipulate the revenue waiver of enterprises. This project mainly uses GWT(Google Web Toolkit) as front-end web user interface, and Hibernate+Spring+Oracle+Tomcat in the back-end, and uses Eclipse+Maven for the development. My work was to define the customized GWT event system called Mutators that would trigger mutation event when the data is changed, and implemented its Test Unit using the GWT unit test framework, or in some cases, used EasyMock. In addition, fixed some issue that is Hibernate and Spring related. • FDC project -- July 2010 to Dec 2010 FDC project is a web application providing the functions of loading paystub from xml or fixed-length text files, printing paystubs, as well as paystub arrival notification for big organizations such as Walmart, Burger-king, and Seven 11. Spring Web Security, IoC, AOP, DAO, JAXB and Struts 1.0 are main frameworks adopted. I dealt with the technical issues of xml schema namespace definition, provided the generic solution for loading paystub text source files that have the arbitrary fixed length format, designed the xml schema to support it, and implemented this generic solution using the technique of Spring AOP, JAXB, StAX, Reflection, Java Collection framework.

My job was to provide the architecture, the detail design and implementation for the website www.network21c.com. One of the main features is to enable the user to define and customize the precious metal, exchange rate 24-hour real time charts using web GUI, and generate the charts on the fly. Users can put the chart links on the other websites. To improve the chart generation performance, java collection framework was widely used for incrementally caching the charts data.

• Designed and Developed a framework named JRRP(Java Request and Reply Platform) which enables developer to implement the functionality by means of XML configuration instead of traditional java programming. The grammar of JRRP language is defined by an xml schema. In JRRP, the functionality exists in term of services, and a service is composed of Request name, request parameter & value pairs, an operational chain which consists a combination of DB Operation, Java operation, parallel operation, assignment operation, and page generation operation etc., finally a response. There are 4 transportation methods to invoke the services, namely Local, HTTP, TCP, and RPC. To locally invoke the service, Local transportation can be applied by means timer task or Quartz cron job. Http, TCP or RPC can be the options to invoke the service remotely.

Participated in many projects for Bell Enterprise, such as Max+ : an existing platform used by more than 10 thousands bell representatives to help customer to modify and order new services when they make a call to bell. My main responsibility was to add a new module of authorization and authentication to Bell Aliant employees which was acquired by Bell. NGCSS: a platform used by bell individual client, retailer and Enterprises like RBC for customizing the orders and services; Bell Consumer Dashboard: a reporting system used by Management level to support decision making.

Ph.D Student In Computer Science, Service Composition And Cloud Computation

Used BPEL and ESB for composing the services, and my current work is to create markup language of MAPL(Message Adaptor Processing.

Master'S Degree, Applied Computer Science

Bachelor'S Degree, Management Information System