Java Full Stack Developer
Resume:
EMPLOYMENT HISTORY
Java Full Stack Developer - Bread Financial
Columbus, Ohio, USA Jul 2024 - Current
Bread Financial Holdings, Inc. is an American publicly-traded provider of loyalty and marketing services. I am designing, developing, testing, and deploying web applications using Java technologies for both frontend and backend components. Created and maintained the databases to store patient records, medical data, and hospital inventory using technologies like MySQL, PostgreSQL, or Oracle.
Responsibilities and Achievements:
Used AWS Lambda to manage the servers and run the code in the AWS and Automation of various administrative tasks.
Integrated Spring and Hibernate framework to develop end-to-end application.
Used Spring Core annotations for Spring Dependency Injection, Spring MVC for Rest API's and Spring Boot for microservices. Designing & development of entire validation service to perform data validations on the test cases built on the extracted, transformed, loaded data & working on Linux platform.
Migrated tables from SQL Server to Cassandra and written queries in CQL for retrieving the data present in Cassandra Cluster. Designed and developed the ETL (Extraction Transformation and Loading) solution using the request mod-ule and the Oauth 2.0 protocol in node JS.
Charge of managing code releases in the software development cycle by leveraging the version control tool GIT, to effectively track changes, manage branches, and coordinate code merges, ensuring a smooth and controlled release process.
Migrated from SVN to GitHub with merge and version and used Jenkins for continuous integration (CI/CD).
Designed and developed an advertising system using Java 8, SpringBoot 2.4, Spring Cloud, Netflix Eureka, Maven, JPA, MySQL, Kafka and Docker.
SOAP has been used as a protocol to Communicate in the form of XML messages.
Involved in writing the Microservices in Spring Boot application with Spring annotations.
Responsible for unit, functional, integration, automation backend API's testing for all new software features and enhancements using JUnit and TestNG framework.
Implemented AngularJS Controllers to maintain each view data. Implemented Angular Service calls using Angular Factory tested all application controllers extensively with AngularJS built-in testing facilities.
Created Data Transfer Objects (DTO) and implemented business logic using Java8 in Spring framework.
Fixed defects Identified in Production/ QA environments; Defects were tracked in Jira tracking Portal.
Designed Validation service on Spring MVC framework for integration with my sql database, and an UI feature.
Designed and implemented GraphQL APIs using Spring Boot and Node.js to enable efficient client-side data querying and reduce over-fetching compared to REST.
Integrated GraphQL resolvers and schemas to support dynamic client queries and improve front-end flexibility.
Leveraged GraphQL with Angular to provide faster UI data rendering and enhance overall application responsiveness.
Developed REST API's using Spring MVC and Spring Boot, hosted all micro services on PCF.
Used Kubernetes to orchestrate the deployment, scaling, and management of Docker Containers.
Created/managed MongoDB/NoSQL collections. Developed Server-side automation using Node.js scripting and connecting different types of SQL and NoSQL databases.
Implemented Micro Services using PCF (Pivotal Cloud Foundry) platform build upon AWS.
Utilized AWS Kinesis for real-time streaming and event-driven data processing across microservices within AWS environments.
Integrated Kinesis with AWS Lambda, SQS, and DynamoDB to enable serverless event-driven architectures and automate backend workflows.
Implemented Redis for distributed caching to optimize API response times and reduce database load across microservices.
Utilized Elasticsearch to design and deploy search and analytics functionalities, enabling real-time data querying and improved customer data insights.
Integrated Snowflake for data warehousing and reporting, creating efficient data pipelines for analytics and business intelligence.
Implement and enhance TAF (Test Automation Framework) application to invoke SOAP and Restful Web Services.
Experienced in using Scala, Java and Python frameworks for Bigdata/Spark engine requirements.
Developed business layer using EJB stateless session beans and deployed on the Application server (Web logic).
Utilized Splunk dashboards for centralized logging, error tracking, and performance analysis of microservices deployed across AWS and PCF environments.
Demonstrated exceptional problem-solving skills by analysing complex challenges and implementing efficient, data-driven solutions to achieve project goals.
Collaborated effectively within cross-functional teams, fostering open communication and teamwork to deliver high-quality outcomes on time.
Technologies Used: Angular, AngularJS, AWS, AWS Lambda, Cassandra, CI/CD, Docker, GraphQL, EJB, Git, GitHub, Hibernate, Java, Java 8, Jenkins, Jira, JUnit, Kafka, Kubernetes, Microservices, MongoDB, MVC, MySQL, Node.js, NoSQL, PCF, Scala, SOA, SOAP, Spark, Spring, Spring Boot, Spring Cloud, Spring MVC, SQL, SQL Server, SVN, TestNG, Web Services, XML
Java Full Stack Developer - Avient Corporation
Avon Lake, Ohio, USA Nov 2023 - Jun 2024
Avient Corporation is a global manufacturer of specialized polymer materials. Involved in building intuitive and responsive user interfaces using modern web technologies such as HTML5, CSS3, and JavaScript frameworks like Angular or React. Deployed the applications to production environments and ensuring scalability, performance, and security.
Responsibilities and Achievements:
Hands on experience on Azure VPN-Point to Site, Virtual networks, Azure Custom security, end point security and firewall. Utilized Node.js to create a fast and efficient chat server.
Implemented different types of spring controllers as per application requirements, DAO and service layer components using Spring/Hibernate APIs and annotations. Extensively used Hibernate (HQL).
Good Knowledge in developing Express, working with Microservices backend with RESTful, GraphQL, gRPC etc. type of services. Experienced on Linux and Windows Virtual servers on EC2 using chef servers.
Worked on Jenkins for continuous integration with Gradle and GitHub. Extensively used Jenkins for CI/CD and used SVN for version control and used STS as the IDE for developing the application.
Developed and consumed GraphQL APIs to streamline data access between frontend React/Angular components and backend microservices.
Developed and consumed GraphQL APIs for seamless integration between Angular and microservices-based backend.
Created and optimized GraphQL queries and mutations to handle complex data requirements efficiently.
Collaborated with frontend teams to replace multiple REST endpoints with consolidated GraphQL endpoints, reducing network overhead.
Used Apache-Maven tool to build, configure, and package and deploy an application project.
Designed the data schema and developed SOAP web services with Axis implementation and REST web services with JAX-RS, services that allowed for retrieving persisted data from various databases using SOAP protocols.
Tested application API implementation using Junit 5 and Spring Boot Testing Starter
Created responsive design and developed a single responsive website that could be served to desktop, Tablets and mobile users using React Js. Involved in writing JUnit Test Cases and Ant Build Script.
Developed the application using Agile methodology and followed TDD, Scrum.
Used Client side MVC frameworks like Angular JS Single Page Application developments.
Implement Java 8 Method References feature to point to methods by their names & implement functional Interfaces.
MQ was used to provide a single unifying transport that reduces cost and maintenance efforts, including support for HTTP, REST and JMS. Implemented applications in HTML, CSS, JavaScript.
Installed Pivotal Cloud Foundry on EC2 to manage the containers created by Pivotal Cloud Foundry (PCF).
Experience in Container management using Docker by writing Docker files and set up the automated build on Docker HUB and installing and configuring Kubernetes.
Involved in configuration and usage of Apache Log4J for logging and debugging purposes.
Used Microservices to communicate using synchronous protocols HTTP and REST for implementing SOAP.
Technologies Used: Agile, Angular, GraphQL, Azure, CI/CD, CSS, Docker, EC2, Git, GitHub, Gradle, Hibernate, HTML, Java, Java 8, JavaScript, Jenkins, JMS, JUnit, Kubernetes, Microservices, MVC, Node.js, PCF, React, RESTful, SOA, SOAP, Spring, Spring Boot
Java Full Stack Developer – FIS
Chennai, India Jul 2022 - Jul 2023
Fidelity National Information Services, Inc. (FIS) is an American multinational corporation which offers a wide range of financial products and services. Implemented the RESTful APIs to facilitate seamless communication between the frontend and backend components. Developed the robust server-side logic using Java technologies such as Spring Framework, Spring Boot, Hibernate, or other related frameworks.
Responsibilities and Achievements:
Developed API for using AWS Lambda to manage the servers and run the code in the DB.
Used JSP for presentation layer, developed high performance object/relational persistence and query ser-vice for entire application utilizing Hibernate. Implemented MicroServices architecture using Spring Boot 2.4 and Spring Security for making the application smaller and independent.
Experience in developing LINUX shell scripts for automating deployment of applications
Implemented CORS (Cross Origin Resource Sharing) using Node JS and developed REST services using Node and Express, Mongoose modules. Used version tools like SVN for source code and project documents
Setup CI/CD pipeline process for the application using the Jenkins.
Worked on Eclipse for development and deployment of application in Web Logic Application Server.
Used SOAPUI for load testing, JMeter was used for performance testing and stress testing. Used Spring Core Annotations for Dependency Injection Spring DI and Spring MVC for REST API s and Spring Boot for micro-services.
Expertise in AngularJS controllers, directives, factories, services, routing, DOM manipulation using JavaScript, jQuery and AngularJS. Experience in MEAN (MongoDB, Express, Angular and NodeJS) Stack application development. Involved in raising questions for business, getting answers from them, bug fixing, and tracking is done by JIRA.
Implemented GraphQL APIs using Node.js and Express to simplify client-server data communication.
Integrated GraphQL endpoints with existing Spring Boot microservices, improving query performance and flexibility.
Participated in migrating select REST services to GraphQL architecture, enhancing scalability and maintainability.
Developed and designed the web interface using HTML5, CSS3, JavaScript, jQuery, React and Bootstrap.
Worked on enhancements using JSP, Struts, database stored procedures and wrote SQL queries.
Worked with Confidential AWS EC2, RDS and S3 as a data store for storing data into the buckets that fall into it. Used EC2 as an Infrastructure as a Service (IaaS) and RDS as Platform as a Service (PaaS)
Developed a controller Servlet that dispatches request to appropriate Action Classes.
Technologies Used: Angular, AngularJS, GraphQL, AWS, AWS Lambda, Bootstrap, CI/CD, CSS, CSS3, EC2, Eclipse, Hibernate, HTML, HTML5, Java, JavaScript, Jenkins, JMeter, jQuery, JSP, MongoDB, MVC, RDS, React, S3, SOA, SOAP, Spring, Spring Boot.
Java Developer - BGR Energy Systems
Chennai, India Mar 2021 - Jun 2022
BGR Energy Systems Ltd (BGR Energy) is a manufacturer of industrial equipment. Implemented the CI/CD pipelines to automate the build, test, and deployment processes, ensuring rapid and reliable delivery of software updates. Utilized the version control systems like Git for managing code repositories and collaborate effectively with other team members using tools like JIRA, Confluence, or Slack.
Responsibilities and Achievements:
Implemented Spring Validators, persistence layer, and service layer components using Spring/Hibernate API and Spring/Hibernate annotations. Extensively used Hibernate QL.
Working on creating batch jobs using Autosys as the job scheduler and technologies like SQL invoker, UNIX shell scripting and core java. Used Git for Source Code Management.
Design and implementation of web applications in Java and HTML5/JavaScript using Eclipse.
Developed front end modules and consumed various Web services in the business layer using REST and SOAP.
Design and implementing Model view controller (MVC) architecture using spring framework.
Familiar with creating Custom reusable React component library.
Actively participated in the daily SCRUM meetings and paired programming to produce quality deliverables with in time.
Configured JMS server setup, DB connection setup & deployed Returned items in Web Sphere Server.
Created complex JRXML templates with parameters, sub-reports, and expressions.
Used Pivotal Cloud Foundry, the connection/service binding details is injected from the deployed cloud platform itself.
Developed the single page front-end to integrate with backend using HTML5, CSS3, JavaScript and React18.
Extensive expertise in Kubernetes, orchestrating containerized applications for efficient deployment, scaling, and management. Implemented SQL queries and stored procedures to save user profile, order in formation to database and retrieve information form database.
Migrated Applications between JBoss and WebLogic Application servers, build and release the issues.
Have also worked on Java 8 along with Cold Fusion and Build RESTful web services using Jax-RS API.
Technologies Used: Autosys, core java, CSS, CSS3, Eclipse, Git, Hibernate, HTML, HTML5, Java, Java 8, JavaScript, JMS, Kubernetes, MVC, React, RESTful, S3, SOA, SOAP, Spring, SQL, XML
Java Full Stack Developer
Anil Kumar Kollapinni
***********@*****.***
Wright State University, Ohio, USA
Masters / Computer Science
As a Java Full Stack Developer position, responsible for Designing, developing, and testing of features and functions delivered via applications and services. Involved actively in complete software development life cycle of various Client/Server and Web applications in many other domains.
ABOUT ME
EDUCATION
SUMMARY STATEMENT
KEY SKILLS
Over 5+ years of experience in IT industry comprising of Java/J2EE enterprise web application design, development, maintenance & support involving all SDLC activities like requirements analysis, design, implementation, reviews, unit testing, integration testing, and production deployments.
Strong knowledge in Spring Framework using IOC/ AOP, Spring Transaction support (Declarative/ Programmatic), Hibernate in Spring.
Experienced in working with Redux architecture using complex Object-oriented concepts in improving the performance of the websites.
Experience of designing and architecting server-less applications using AWS Lambda API Gateway, DynamoDB and Security Token Service (STS).
Used Spring Boot, Spring Batch for building cloud Microservices quickly and develop spring-based applications with very less manual configuration.
Automated the deployment process by integrating code repository using build pipeline Jenkins, Bamboo and CI/CD for Continuous Integration and Continuous Deployment that can run on the cloud or on-premises. Strong experience in Unix & Linux Shell scripting Bash, Perl scripting.
Good experience developing enterprise applications using Spring, Hibernate, JavaBeans, Servlets, Struts, XML Mapping, Ant, Ivy and Maven.
Experience with version control system tools such as Git, SVN and CVS. Extensive experience of using IDE tools Eclipse, NetBeans, IntelliJ IDEA for JAVA/J2EE Application development.
Extensive experience in developing scalable, reliable, efficient web and enterprise applications using JSP, Servlets, Struts, JSF (Prime Faces).
Experience with complete Spring framework- Spring Boot, AOP, Transactions, Security, Auto wiring, ORM, MVC, Spring Data, Spring Hystrix, Hateos, Webflow and Spring integration with AWS.
Proficiency in utilizing various IDEs such as Jupyter notebooks and Visual Studio Code
Experience in Bootstrap (responsive design), Backbone, and AngularJS frameworks. Deep knowledge in Angular 2. Experienced working in both Agile and Waterfall based development environment and participating in Scrum sessions.
Knowledge on various Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry. For communication with web service JSON.
Experienced in integrating Redis for caching, Elasticsearch for advanced search and analytics, and Snowflake for data warehousing and ETL integration to enhance performance, scalability, and data efficiency.
Languages: Java, J2EE, Bash, C#, Golang, Rust, C++, Python, Scala, Groovy, Ruby, Kotlin
Web Technologies: HTML, XML, CSS, PHP, AJAX, JavaScript, jQuery, JSON, Angular, Node.js, React.js, Typescript, Flask, Vue, webpack
AWS technologies: ECS, SQS, Step Functions, Lambda, DynamoDB, Kinesis
Web Services: Web Services (SOAP and REST), Apigee
Database: SQL Server, Oracle, PostgreSQL, MongoDB, Cassandra, GraphQL, Redis, Snowflake
SQL Tools: TOAD, SQL Developer, MySQL Workbench
Cloud Tools: AWS, Azure, GCP, SaaS
Version Control Tools: GIT, SVN, CVS
DevOps & CI/CD: Jenkins, GitHub, GitLab, Bitbucket, Terraform
Containerization / Orchestration: Docker, Kubernetes
Messaging Systems: JMS, Kafka, Confluent Platform, ActiveMQ, RabbitMQ
Testing Tools: JUnit, Jes
Selenium, Cypress
Monitoring & Logging Tools: Splunk, Log4J, CloudWatch, Prometheus
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