SUMMARY:

• Over (8) years of experience with all phases of the Software Development Life Cycle (SDLC) of Java/J2EE enterprise web applications on Windows, Linux, Unix and Mac OS environments.
• A seasoned hands - on developer with experience in a wide of range of Java/J2EE based frameworks and toolkits and an in-depth understanding of their underlying concepts.
• Design and develop complex enterprise applications
• Work well with Agile & Scrum
• Interact with business stakeholders to define business requirements
• Translate business requirements to technical design documents
• Ensure that architectural designs are based on business requirements
• Work well with both onsite and remote offshore teams
• Hands on development of prototypes
• Maintain and enhance live production systems with 100% uptime
• Monitor reliability and performance of live productions systems
• Research and implement technology advancements in projects

TECHNICAL SUMMARY:

• Object Oriented Analysis and Design (OOAD)
• Spring Boot microservices with Actuator, Hystrix, Feign, Sleuth, Ribbon, Eureka and Zuul
• RESTFUL web services with JAX-RS, Spring and Spring Boot
• Swagger and Spring Rest Docs for contract definitions and documentation of RESTFUL API’s
• Best practices for RESTFUL web services with HAETOS and the Richardson Maturity model
• SOAP webservices with JAX-WS and Spring and Spring Boot
• WSDL first and Code first development of SOAP web services
• JSP’s, Javascript, StealJS, AngularJS, AJAX, HTML, CSS and bootstrap based web clients and RIA’s.
• J2EE Enterprise applications with Spring, Struts, Hibernate, JDBC, JPA, AOP, REST and SOAP
• Spring Core, Spring AOP, Spring Data, Spring MVC and Spring Security
• Authentication and Authorization with Single Sign on (SSO) and OAuth Tokens
• Action classes, Service Classes, DTO’s and DAO’s with Struts
• Object Relational Mapping (ORM) with JPA for Oracle and Hibernate
• Testing with JUNIT and Mockito
• Ant and Maven for build management and code versioning
• GIT, SVN and CVS code repositories
• Nexus and JFrog artifactories
• Apache, Tomcat, Tomcat LAE, Glassfish and IBM Websphere web servers
• RDMS SQL development with Oracle, SQL Server and DB2
• NoSQL with ElasticSearch and MongoDB
• Agile (Scrum), TDD, Pair programming with JIRA for short development iterations.
• Design patterns like MVC, Singleton, DAO, Session Façade, Factory Method and Gang of Four
• XML manipulation with SAX, DOM, Jackson, Jersey and JAXB
• CI / CD deployment workflow with Jenkins, Sonar, uDeploy and uRelease
• Hosting apps (spaces and orgs) in Pivotal Cloud Foundry (PaaS)
• Pivotal Cloud Foundry (PCF) on Amazon Web Services (AWS) Cloud
• PCF Service Broker to create and manage AWS Resources
• Amazon Web Services (AWS) SDK to manage S3 buckets, deployed instances and CDN

PROFESSIONAL EXPERIENCE:

Confidential, Peoria, IL

Sr. Java / J2EE Developer

Responsibilities:

• Work in a fast-paced agile environment with 2-week sprint cycles
• Re-write of JAX-WS and JAX-RS web services to Spring Boot Restful web services
• Consume 3rd Party RESTFUL web services with Spring Rest Client
• Translate Java based ElasticSearch and MongoDB ingest modules to Spring Boot
• Object Oriented Analysis and Design of use cases
• Implement best practices in RESTFUL design with Swagger Contracts and HAETOS
• OAuth2 Stateless Authentication with JSON Web Tokens (JWT)
• LDAP user authentication for Spring Boot applications
• Confidential vault for the storage and retrieval of secrets
• Translate Hibernate ORM’s to Spring Data ORM’s
• CI / CD with Jenkins, Sonar and Docker
• QA signoffs, Performance signoff’s and production deployment of Microservices
• Create API Documentation with Spring Rest Docs
• API WIKI Documentation on Confluence
• Ported legacy Quartz based scheduler jobs to Sprig Boot scheduler jobs
• Convert scoped bean bases JSP, AngularJS and JS webpages to consume REST services
• Client side load balancing with Ribbon and Spring Cloud
• Degrading services gracefully with Hystrix

Confidential, IL

Sr. Java / J2EE Developer

Responsibilities:

• Code use cases based on Sprint stories
• Work with responsive web pages using JSP’s, JavaScript, HTML5, CSS, Bootstrap and AngularJS
• Implement server side backend components using Java/JavaEE and Spring
• Build components with Spring Core, Spring Data, Spring Security and Spring Boot
• Convert legacy Websphere based TUF, J2EE application to a Spring based tomcat LAE application
• Convert JAX-WS and JAX-RS webservices to Spring Rest Services based on Swagger contracts
• Design and develop ingest/read NoSQL components for Cassandra, ElasticSearch and MongoDB
• Translate traditional SQL data structures to NoSQL ElasticSearch indexes
• NoSQL operations and cache with ElasticSearch and MongoDB
• Kafka pipeline to ingest ElasticSearch data to MongoDB and vice versa
• Work with onsite and offshore development teams
• Code reviews, regression tests, performance tests and code coverage signoffs
• Build working prototypes for business stakeholders
• QA signoffs, Performance signoff’s and production deployment of Microservices
• Capacity / redundancy implementation to ensure 100% uptime of the production system
• Manage and maintain tomcat, Oracle, MongoDB and ElasticSearch installations
• Monitor system performance and exceptions with monitoring tools
• Expose / consume new restful web services to interact with other modules
• Manage and maintain multiple code bases of the application
• Develop unit test cases using Junit and Mockito
• Jenkins, Sonar, Docker and uDeploy for continuous deployment of microservices

Confidential

Sr. Java / J2EE Developer

Responsibilities:

• Create Use Cases, Class diagrams and Sequence diagrams for application design
• Code credit management, cash application and reporting modules of Autobot
• Code web clients using HTML5, JSP, Javascript and AngularJS
• Implement STRUTS2 MVC with Action Servlets, Manager Classes, DTO’s and DAO’s
• Develop application components to integrate with 3rd party Java API’s
• Write JAX-RS restful web services based on light weight/fast requests and responses
• Write JAX-WS soap services with XML payloads
• Used SOAP UI and Rest Web Service Client to test web services
• Write complex Oracle and DB2 Stored procedures
• Implement the DAO layer using hibernate to handle data to and from databases
• Used Ant scripts for build management
• Used Jenkins for application build and deployment across multiple instances
• Develop unit test cases using JUnit and Mockito
• Write the Confluence WIKI pages for key Web Service implementations
• Used JConsole to manipulate cache count values
• Developed User Interface using Struts Tags, Spring tags, JSP and JSTL.
• User side validation using Struts Validation Framework.
• Used JVisualVM to monitor heap and thread dumps
• Used IBM Rational Clear Quest to keep track of maintenance issues
• Worked on fixing production issues

Confidential

Java/J2EE Developer

Responsibilities:

• Create Use Cases, Class diagrams and Sequence diagrams for application design
• Develop web clients using HTML, JSP’s, Javascript and HTML
• Implement STRUTS based J2EE backed
• Write complex Oracle and DB2 Stored procedures
• Write Action servlets, DAO and DTO to implement STRUTS MVC
• Write ant scripts for build management
• Assist with application build and deployment across multiple instances
• Develop unit test cases using JUnit
• Worked with Eclipse, NetBeans, and Adobe Flex IDE’s
• Used JVisualVM to monitor heap and thread dumps
• Used IBM Rational Clear Quest to keep track of maintenance issues
• Used JMS Queues and Topics to send messages to remote clients

Confidential

Java / J2EE Developer

Responsibilities:

• Involved in creating Use Cases, Class diagrams and Sequence diagrams
• Involved in the end-to-end implementation cycles of the Waterfall SDLC
• Programmed with JAVA/J2EE, Servlet’s, JSP’s, Javascript and HTML
• Implemented RMI/JINI based interfaces for device communication
• Implemented JNI & CORBA adaptors for legacy system integration
• Worked with JUnit for component testing
• Wrote Ant Scripts for deployment
• Created installation bundles with Install Anywhere
• Work with onsite and offshore development teams
• Manage and maintain multiple code bases of the application
• Develop unit test cases using Junit