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Surya - Java Full Stack Developer

[email protected]

Location: Kansas City, Missouri, USA

Relocation: Yes

Visa: Green Card

Professional Summary: Around 10 + years of Full Stack development experience in all phases of Software Development Life Cycle (SDLC) which includes Analysis, Design, Development, Implementation and Testing of web based, enterprise business applications in different application architectures like Monolithic, Service Oriented Architecture, Microservices, N -tier and Event-driven. Worked extensively with JAVA 8,9,11 features like Stream API, Time API, Functional Interfaces Multithreading, Transaction Management, Exception Handling, Collection API.a Strong experience in developing Dynamic Single Page Application (SPA) using MEAN (Mongo, Express Angular and Node) full stack development tool kit. Good amount of hands-on experience in developing server-side JavaScript frameworks using Node JS (Express JS) to build event driven, non-blocking i/o model web applications. Developed custom filters and model driven forms in Angular and linked them with HTML. Experienced in AngularJS, Backbone JS, Ext JS for unique and customized front-end app development and to achieve MVC design flow. Well experienced in developing applications using JQuery, React JS, Handlebar JS for view rendering, and implementing React JS with Redux and Flux patterns to attain MVC functionality. Expertise in using JavaScript build tools and task runners like Webpack for React and Angular 7.0/8.0, Grunt, production build for angular 2.0 with Gulp, Browserify for packaging Node JS modules for browsers. Worked on UI testing with Karma, Jasmine, Protractor for AngularJS, Mocha, and Chai for React JS and Backbone JS. Good knowledge of package manager tools such as NPM and Bower for dependency management. Have good knowledge of different databases like PostgreSQL, MySQL, DB2, Oracle 13c/11g, Microsoft SQL Server, NoSQL DB (MongoDB, Cassandra, Couch DB, Redis, DynamoDB) and good experience in writing stored procedures, functions, and triggers using PL/SQL in JDBC, ODBC and in WebLogic server. Expertise to interact with relational DB using ORM frameworks like Hibernate, Spring Data, JPA, IBatis, MyBatis, Java Persistence API (JPA), Hibernates second-level cache - Ehcache. Experienced in configuring and deploying applications on different servers such as Apache Tomcat, Web logic, IBM WebSphere, JBoss. Worked with various frameworks in Spring such as Spring IOC, AOP, Spring transaction Management, Spring Data, Spring JDBC, Spring Batch, Spring JTA, Spring IO, and Spring Security (Spring Security, Site Minder). Developed and deployed Microservices based applications using Spring Boot and Spring Cloud. Proficient in using Spring Data JPA that helped in creating automatic Data Access Objects (DAOs) at the compile time. Extensive experience in developing scalable, reliable, efficient web and enterprise applications using JSP, EJB, JNDI, JMS, Struts, JSF (Prime Faces). Unit tested web services using Junit, Mockito Easy mock, Spring Junit Runner, Spock, Test NG and hence achieved the goals of Test-Driven Development (TDD). Good knowledge of providing authentication and authorization for web services using OIDC (OpenID Connect) on top of OAuth 2.0. Efficient in creating access tokens using JWT (JSON Web Token) to assert claims. Experienced in handling message queues using JMS, Rabbit-MQ, Active-MQ and Apache Kafka. Experience in integration tools like Spring Integration, Apache CXF, Apache Kafka and Apache Camel to integrate the enterprise application technologies with existing JVM environments. Building real-time dashboard applications for visualizing, analyzing, and exploring data on Apache Web servers using Elastic Search, Logstash, and Kibana 4.0 (ELK), Splunk. Good knowledge in employing database caching strategies using Redis, MongoDB Elastic search. Well experienced in using various AWS (Amazon Web Services) Iaas (Infrastructure as a Service) Components like EC2 for running applications on virtual machines, S3 and Glacier for storing and long-term backup of data, EBS for persistent block-level storage, Elastic Cache, DynamoDB, SQS for message queueing, RDS for setting relational database in cloud and Lambda for serverless program functions. A better understanding of using Spring Cloud Netflix OSS stack for microservices deployment and auto configurations like Ribbon (client-side Load Balancer), Hystrix (latency and fault tolerance library), Zuul (gateway for routing, monitoring, security) with Eureka service registry and log management with ELK. Implemented Docker container service, build pipeline Jenkins, Bamboo and CI/CD for Continuous Integration and Continuous Deployment that can run on the cloud or on-premises. Good practical experience with Java-based logging utility. i.e. log4J. Used Kubernetes Linux container for deploying and scaling containerized applications. Better understanding of using Spring Cloud Netflix OSS stack for microservices deployment and auto configurations like Ribbon (client-side Load Balancer), Hystrix (latency and fault tolerance library), Zuul (gateway for routing, monitoring, security) with Eureka service registry and log management with ELK. Experience working with JIRA to track the status of the application. Technical Skills: Languages Java, C++, SQL Web Technologies HTML5, CSS3(Sass and less), JavaScript, AJAX, JSON, Bootstrap, jQuery, Angular2.0/4.0, React JS with Flux, Redux, Handlebar JS, Backbone JS, NodeJS, Express JS, Hapi JS J2EE Technologies & Frameworks Servlets, EJB, JSP, JSF, JDBC, SOAP, WSDL, REST, XML, JAXP, JAXB, JPA, JMS, Spring 3.x/4.x/5.x, Struts, Hibernate 2.x/3.x/4.x/5.x, Spring MVC, Spring Boot, Spring Data, Spring Batch, Spring Cloud, Dump Analysis. Messaging Services JMS, Rabbit MQ, Apache Kafka Web service frameworks JAX-RS, JAX-WS, Apache CXF, Axis, Jersey, SOAP, RESTful, WSDL Application/Web Servers Apache Tomcat, Oracle Web Logic, IBM Web Sphere, JBoss IDE Tools Eclipse, NetBeans 6.9,6.8, Visual Studio, IntelliJ, Spring Tool Suite, Sublime Text, WinSCP, Putty Databases Oracle 9/10/11g/12c, DB2, MySQL 7.1.9, SQL Server 2000/2005/2008, MongoDB, Cassandra. Cloud Technologies & DevOps Tools AWS, PCF, EC2, EBS, S3, Docker, ECS, EBS, EKS, SQS, RDS, S3, Glacier, Lambda, Kubernetes Methodology Agile, Waterfall, TDD, Scrum Build & Configuration Tools Ant, Maven, Gradle, Jenkins, Grunt, Webpack, NPM, Bower Testing Tools Junit, TestNG, Mockito, Jasmine, Karma, Mocha, Chai, Spock, Protractor Project Management Tools JIRA, Rally, Microsoft Project Operating System Windows, Linux, Unix, MAC. Professional Experience: Synchrony, CT June 2022 Till Date Sr Full Stack Java Developer Responsibilities: Developed the single-page application following Agile Scrum, participated in daily standups, sprint reviews, Kickoffs, and used Jira for project management. Involved in Software Development Life Cycle for gathering requirements, Analyzing, Designing, Developing, and Testing applications using Agile methodology. The application is built in Micro Service Oriented Architecture using MEAN 4+ (Mongo, Express Angular 8.0 and Node) stack and developed Single Page Applications (SPA). Developed multiple Angular 11.0 components that are compatible with the latest versions of typescript, angular CLI. Designed the user interface screen and its functionality as per user requirements and developed RESTful Web services. Designed and developed efficient user Interaction screens using HTML5, CSS3, and Bootstrap CSS framework and media queries to create responsive web pages. Created dynamic schema design through NoSQL MongoDB by writing rich queries and achieved data in a collection to be distributed across multiple systems for horizontal scalability as data volumes increase through Sharding. Implemented Java11 features like Lambda expressions, Streams, filters, pipelines, Optional Interfaces, etc. Worked with KAFKA Zookeeper for managing the cluster with broker/cluster technology. Implemented Microservices architecture with Netflix, Spring Eureka, Spring Ribbon using Spring Boot to provide client-side load balancing in calls to other Microservices, making applications into smaller chunks and the Spring Hystrix circuit breaker and for the fail-safe. Kubernetes is configured in the application for automating deployment, scaling, and management of containerized applications. Hands-on experience on Dump Analysis and thread Dump common problem patterns (Thread race, deadlock, hanging IO calls, garbage collection / Out of Memory Error problems, infinite looping, etc.). Implemented Spring Netflix Zuul API gateway and Eureka service registry for reverse proxy and Dynamic service discovery of APIs. Responsible for migrating existing modules in IBM MQ to Apache Kafka and creating Kafka adaptors for decoupling the application dependency. Used Cassandra for storing internal statements and reports and worked extensively in Development which includes updating and retrieving data internally from the back-end Cassandra. Implemented AWS solutions using E2C, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups, Optimized volumes, and EC2 instances and created monitors, alarms, and notifications for EC2 hosts using Cloud Watch. Implemented a 'server less' architecture using API Gateway, Lambda, and DynamoDB and deployed AWS Lambda code from Amazon S3 buckets. Created a Lambda Deployment function and configured it to receive events from your S3 bucket. Worked with Jenkins to configure Continuous Integration and Continuous Deployment (CI/CD). Implemented Spring Circuit breaker pattern, integrated Hystrix dashboard to monitor Spring microservices. Participated in code review and mentoring sessions and used GIT as version control and GIT Bash for GIT interactions. Experience in working with GraphQL queries and use the Apollo GraphQL library. Experience working with (consuming) REST or GraphQL APIs via client-side JavaScript or server-side via NodeJS. Designed and optimized relational database schemas for efficient data storage and retrieval. Authenticating Users to provide security to Restful web services using OAUTH 2.0. Environment: Java, Angular 11.0, J2EE, Git, Spring Boot, Hibernate, Core Java, Rest, Web Services, CSS, Eclipse RCP SASS, WSDL, JIRA, PostgreSQL, AWS, Spring Cloud, Spring batch, PCF, Apache JMeter, jQuery, JUnit, Docker, Maven, Jenkins. Quest Diagnostics, NJ Sept 2021 - May 2022 Role: Full Stack Java Developer Responsibilities: Participate in the application's requirement gathering, analysis, design, development, and testing utilizing the Agile process. worked on Java 8 and made use of its new features when writing code, including Lambda expressions, resource classes, and database document retrieval. React and Redux were used to create the user interface, and gulp, webpack, and NPM tools were used to build systems and create a Node-powered workflow. I rewrote the front-end application using React Hooks. a functional component was used in place of the React class component. Replaced by new hooks like use State, use Effect, use Reducer, and use Ref for stateful management. Utilized React's lifecycle methods, such as React-Router and component Did Mount, component Update, and component Will Unmount. Used Axios service to retrieve data from server synchronously in the background without interfering with the display and existing page in an interactive way. Used Spring Boot which is radically faster in building cloud Microservices and developing Spring based applications with very less configuration. Used Spring Boot Actuator to externalize application's configuration properties for different environments and RESTful web services using spring Boot and Spring Rest. The implementation of functionality involves creating RESTful web services with spring Boot. Worked with Spring Cloud and Netflix OSS-Eureka for service registration and discovery and with Zuul API gateway for Spring boot Application. Developed application on Spring framework by utilizing its features like Spring Dependency injection, Spring Beans, Spring Security, Spring JPA, Spring AOP, Spring IOC, Spring Web flow using MVC. Used Spring Transactions in the application and developed Session beans for the business logic at the middle tier level. Implemented the Spring IOC for the core business application logic and used Hibernate as persistence framework. Worked with Spring Batch to convert xml files to database records using Quartz Scheduler. Implementation of the Bottle microframework utilizing a MySQL database and RESTful API. asynchronous processing's communications infrastructure was Apache Kafka. used Amazon EC2 for testing lower environments like Dev, INT, and Test, as well as for deploying instances. We used AWS Lambda with Step Functions to build the event-driven architecture, and we set up Amazon RDS to host Oracle 12c. Environment: HTML5, CSS3, Redis, Express JS, jQuery, JavaScript, Node JS, Bootstrap, REST API, Load Balancer, MongoDB, REST administrations, Docker, Mocha, SSO Authentication, WebPack, Kubernetes, Maven, and Jenkins. GIT, Jenkins, AWS Services, Elastic Cloud Compute (EC2). Master Card, St Louis Mo Dec 2018 - Sep 2021 Java Full Stack Developer Responsibilities: Involved in all stages of SDLC like Requirement Analysis, Design and Implementation in Agile Methodology. Developed presentation layers using HTML5, CSS3, and Angular4 router to build single page applications to navigate through the different status and multiple modals. Developed and maintained JavaSpark applications, focusing on performance optimization and scalability. Used Angular 4 to associate HTML elements to models, to provide dynamic user validations on the client side. Worked on UI components using Angular2 Dependency Injection, Models, data binding and controllers. Worked on Java8 features like Lambda expressions, Streams, filters, optional classes and default methods. Used Executor Service Interfaces, Thread Pool Executor class for multi-threading & thread resource pooling. Worked on Spring MVC Transaction Management, Spring/Hibernate Batch Transactions and Hibernate cache, Spring Boot components to implement business layer and navigation part of application. Developed the Application using design patterns-Singleton, Factory, DAO, DTO prototype and Composite View. Implemented Microservices architecture with Netflix, Spring Eureka, Spring Ribbon using Spring Boot to provide client-side load balancing in calls to other Micro services making applications into smaller chunks and also the Spring Hystrix as circuit breaker and for the fail-safe. Involved in developing Restful service API s endpoints in microservice architecture. Developed MongoDB Data Access Layer implementing Mongo Repository interface from Spring Data. Implemented a distributed messaging queue to integrate with MongoDB using Kafka and Zookeeper. Developed various SQL queries and PL / SQL Procedures in Oracle DB for the application. Worked on UNIX/Bash environments across EC2 servers with Docker hosts & Kubernetes to manage docker images. Involved in Designing and deploying AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups. Supporting Systems Infrastructure comprises Linux OS, AWS, EC2 clusters. Worked on instantiating multiple AWS EC2 servers by using YAML Script in Ansible playbook. Experienced DevOps methodologies by implementing CI/CD Pipelines using tool sets like GIT, Jenkins, and AWS Utilized AWS Lambda platform to upload data into AWS S3 buckets and to trigger another Lambda function. Worked with API Management product of APIGEE in consuming the API s in implementing customer use cases. UNIX Shell scripts for Bash shell to automate deployments and environment configurations on the EC2 Clusters Developed Apache Spark jobs using Java in a test environment for faster data processing and used Spark SQL. Designed and Developed the Automation Testing Framework using Java, Selenium Web Driver and TestNG. Environment: HTML, CSS, JavaScript, Angular2, Node.js, Java8, Java/J2EE, Spring MVC, Restful Web Services, Microservices, Netflix, Spring Eureka, Spring Ribbon, Spring Boot, AWS, EC2, S3, RDS, EBS, Elastic Load Balancer, Docker, Ansible, Jenkins, Linux OS, Selenium, TestNG, MongoDB, Maven. CBRE / Dallas, TX Jan 2018 Nov 2018 Full Stack Java Developer Responsibilities: Bootstrap components for responsive UI objects were built using React JS and connected to API data to view and render the virtual DOM dynamically. The entire layout design and prototype using React JS and the Redux library, jQuery UI, CSS/Less, and HTML5 are under your control. To keep the application lightweight and effective, Node JS was used as a server-side proxy for an event-driven, non-blocking I/O paradigm. extensively used REACT with Redux Architecture to write minimal code to create reusable forms with associated validations. Adequate familiarity with Java 8 core concepts, Time APIs, and Lambda expressions When data is flushed or committed from one of the open tabs, session-level Data Structure s shared across those tabs are cleaned up as efficiently as possible. Model View Controller (MVC) design pattern-based application architectures and the Struts 2 framework for front-end development and presentation logic have been implemented. All client-side validations were created in JavaScript, and a GUI was created using CSS, JSTL, and XSL. Apply targeted development changes to Oracle databases and watch the changes take effect as they pass through the testing and production life cycles using an internal deployment tool. Define the needs and requirements for the development of an application employing SQL, Oracle R12, Oracle Forms, and Oracle Reports. React JS is used with the Web Pack module bundler and the Babel JavaScript compiler. Our React-frontend application's CRUD back-end was built using Spring Boot. Utilized Jenkins for CI/CD (Continuous Integration and Continuous Deployment). Performed Unit testing on ReactJS applications using Karma and Jasmine tools and worked with the Gulp tool to build automation. DevOps role converting existing AWS infrastructure to Server-less architecture (AWS Lambda, Kinesis) deployed via CloudFormation. Environment: AJAX, Bootstrap, JSON, XML, Active MQ, JMS, Hibernate, DB2, SOAP-AXIS2, Restful services, JAX-RS SOA, Java, J2EE, JSP, HTML, MVC, Servlets, Struts, MyBatis, JMS, MDB, EJB3.1, JUnit, PL/SQL, DAO, Web Logic Server, Ant, SOAP, JAX-WS, WSDL, Junit, SQL. US Bank, Chicago Jan 2015 - Dec 2017 Java Developer Responsibilities: Developed a Monolithic application and generated UI screens using JSP, HTML, CSS, JavaScript. Worked on JSP, Servlets, Struts framework and production support issues of the existing applications. Involved in development of Action Forms, Action Servlets, Action and Validating Action Forms in Struts framework. Implemented Struts Dispatch Action class and formed bean classes using struts framework. Client-server validations were handled using Struts Validator Framework validate plug-in. Implemented Multithreading for handling multiple requests and for high performance. Developed model components using session beans and used local message driven beans (MDB) to interact with sessions using EJB. Responsible in creating Servlets, which route submittals to appropriate Enterprise Java Bean (EJB) components and render, retrieved information and EJB Session Beans were used to process request from user interface using OSS. Java message queue (JMS) is used for exchanging information and messaging services. Designed and developed Message Driven Beans (MDB) that consumed the messages from the JMS. Build and maintain SQL scripts, indexes, and complex queries for data analysis and extraction. Develop a business continuity plan for the SQL Server Databa sesusing JDBC drivers. Created many Stored procedures and scheduled jobs to support our applications to create reports for customers. Experience in installing, configuring and deploying applications on Web Logic Server. Developed DAO pattern to retrieve the data from the database. Developed SOAP web services (JAX-WS) for sending and getting data from different applications WSDL generation and exposed the service at server-side over the Internet and tested the services using JUnit. Deployed application on Client Linux server. Used ANT build tool for compiling and generating war files. Environment: Core Java, J2EE, JSP, HTML, MVC, Servlets, Struts, MyBatis, JMS, MDB, EJB3.1, JUnit, PL/SQL, DAO, Web Logic Server, Ant, SOAP, JAX-WS, WSDL, Junit, SQL. SK Infotech, India March 2013 Sep 2014 Java Developer Responsibilities: Designed and Developed web interface for admin module using Struts MVC framework to search, reset password, lock/unlock the user accounts. Developed and implemented the interactive functionality using JSP, Tiles framework. Extensively used Struts Validator for server-side validations and JavaScript for client-side validations. Developed Stored Procedures, queries to extract the Customers data from the database. Used Subversion for Version Control Management. Extensively used the Struts tag libraries (Bean Tags, Logic Tags and HTML Tags etc.) and Custom tag libraries. Involved in code reviews, debugging and testing. Used connection pooling for optimization using JDBC interface. Flexibly used J2EEdesign patterns like Value Object, Data Access Object and Singleton. Prepared Use-Cases from the given requirements and interacted with clients for requirements gathering and clarifications. Developed Utility Classes, which are used throughout the application. Environment: Java, JSP, Struts Framework 1.2, JDBC, UML, JavaScript, HTML, Oracle 9i, Toad, WSAD, Maven, Subversion, Log4J, WebSphere and Windows / NT. Keywords: cplusplus continuous integration continuous deployment user interface message queue javascript sthree database information technology procedural language Connecticut Missouri New Jersey Texas