Stack Developer Software Development

MANI CHINTHAKUNTLA

Java Full Stack Developer

Mobile: 316-***-****

Email: *******************@*****.***

LinkedID: https://www.linkedin.com/in/mani-chinthakuntla-508264117/

Career Profile:

• Over 12 years of IT experience across the Software Development Life Cycle (SDLC) including Requirement Analysis, System Design, Development, Testing and Deployment of enterprise and web-based applications with a strong emphasis on Object-Oriented Programming, Java/J2EE, and client-server architectures.

• Expertise in Agile(Scrum), Waterfall, Pair Programming, and Test-Drvien Deevlopment (TDD).

• Expertise in estimations, analysis, design, development, testing, maintenance, performance tuning and deployment of internet, e-commerce and client-server applications using Java, Servlets, JSP, JavaBeans, JDBC, Spring, Hibernate, AJAX, JavaScript.

• Involved in Application Design & Architecture using Core Java 1.5, J2EE, EJB, Spring, Hibernate, JSP, Struts, Servlets, JMS, MDB, XML, Web Services (CXF), JAX - WS.

• Experience in User Experience (UX) design and development, User Interactive (UI) Web Pages and visually appealing User Interfaces using HTML5, CSS3, Bootstrap, SASS, JavaScript, jQuery, AngularJS, Angular 6/8/9, ReactJS, NodeJS and understanding in WCAG Guideline.

• Implemented a distributed caching solution using Hazelcast, resulting in significantly improved application performance.

• Integrated Hazelcast seamlessly into a microservices architecture, enabling efficient communication and data sharing across distributed services.

• Expertise in various open-source frameworks like AngularJS, NodeJS, Struts 2.0/1.2, Spring 2.5/3.0, Spring MVC, IoC, Web and ORM Technology like Hibernate 3.0, JPA, EJB3.0, IBatis, MyBatis, jQuery.

• Expertise in Web-Development technologies like Servlets, JSP, JSTL, HTML5, JSON, JavaScript, CSS3, XML, XSL/XSLT, AJAX, jQuery.

• Utilized the performance enhancements introduced in Java 17 to optimize critical sections of the codebase, resulting in improved application response times.

• Extensive experience in Amazon Web Services like EC2, Simple DB, RDS, Elastic Load Balancing, SQS, SNS, AWS Identity and access management, AWS Cloud Watch, Elastic Beanstalk and CloudFront, Redshift.

• Expertise in Hibernate, Docker, Jenkins, Azure, EMR, Apigee, Splunk, Dyna Trace Management tools and a web commerce like ATG

• Developed and designed the architecture for Silo OMNIMARK using a fourth-generation programming language, ensuring scalability, modularity, and performance optimization.

• Proficiently managed and administered ServiceNow instances, including configuration, customization, and enhancement of modules like Incident, Change, Problem, and Service Catalog, ensuring optimal performance and adherence to business needs.

• Extensive knowledge of XML-based standards and protocols (such as WSDL and SOAP), Service Oriented Architecture (SOA), development of XSD schemas and implementing both SOAP and REST web services.

• Designed and developed the REST based Microservices using the Spring Boot, Spring Data with JPA (Java Persistence API) and deployed Microservices on Docker.

• Led the creation and maintenance of comprehensive README documentation, ensuring clear and concise guidance for developers and users.

• Solid Experience in creating Kubernetes Clusters in AWS and deploying a Docker Image on top of Kubernetes Cluster.

• Extensively worked with the Build and deployment tools like Maven, Gradle and Ant.

• Profound knowledge in configuring and deploying web applications in Tomcat Server, WebLogic, Web Sphere and JBoss

• Experienced in testing Angular, Angular 2 applications using Jasmine, Mocha, Karma, and Angular Test Bed.

• Demonstrated expertise in utilizing Terraform to manage infrastructure as code, enabling consistent and scalable deployment of cloud resources across multi-cloud or hybrid environments.

• Good knowledge and experience with multiple Servers like IBM Web Sphere, IBM Web Sphere ESB (Enterprise Service Bus), WebLogic server, Apache Tomcat, JBoss.

• RDBMS experience includes Oracle, SQL Server; database programming and connectivity using JDBC, ODBC, SQL, PL/SQL, Stored Procedures, triggers, Queries etc.

• Proficient in structuring documents using SGML, defining elements, attributes, and their relationships for clear content representation

• Designed structured and easily maintainable YAML configurations for deployment and environment management.

• Good experience in Amazon Web Services (AWS) environment and good knowledge of AWS services like Elastic Compute Cloud(EC2), Elastic Load-balancers, Elastic Container Service (Docker Containers), S3, Elastic Beanstalk, Cloud Front, Elastic Filesystems, RDS, DMS, VPC, Route53, Cloud Watch, Cloud Trail, Cloud Formation.

• Comprehensive knowledge on working with Databases MYSQL, Oracle 10g/11g, SQL-Server, DB2 and NoSQL MongoDB, Cassandra.

Expertise in Technologies:

EDUCATION:

Bachelors in Computer Science and Engineering, Aditya Engineering College (JNTUK), 2012.

PROFESSIONAL EXPERIENCE:

Senior Full Stack Java Developer Sep 2022 - Present

CVS, Irving, Texas

Activities:

• Designed and implemented backend services using Spring Boot, leveraging Spring IOC, Transactions, Dependency Injection, Annotations, and Actuator for system monitoring.

• Developed robust, scalable microservices using Java 17 and Spring Boot, integrating advanced features like sealed classes and pattern matching to modernize codebase and improve maintainability in a cloud-native architecture.

• Developed Microservice architecture with Spring Boot based services interacting through a combination of RESTand Apache Kafka message brokers.

• Secured applications with Spring Security and OAuth2 for robust authentication and authorization.

• Built REST APIs using Hystrix commands and Feign clients for fault tolerance and fallback mechanisms in micro services.

• Developed Microservice architecture with Spring Boot and Apache Kafka for asynchronous inter-service communication.

• Designed interactive front-end interfaces using Angular 15, TypeScript, HTML5, and CSS3 to build dynamic, high-performance single-page applications (SPAs) with modular architecture and improved rendering.

• Migrated infrastructure from AWS Elastic Beanstalk to Docker containers orchestrated via Kubernetes.

• Developed responsive UI with React.js, utilizing JSX, Redux, flux, and React Router; created reusable component libraries for consistency.

• Developed backend utilities and microservices using Python (Flask, Django) for data transformation, API orchestration, and integration with front-end modules built in Angular and React.

• Designed relational database schemas and maintained backend implementations for platforms like Silo OMIMARK.

• Designed and optimized data models in MongoDB for handling high-volume transactional and session data in Angular-based SPAs, enabling faster query performance and seamless integration with microservices.

• Utilized Swagger to auto-generating and validating RESTful API documentation.

• Designed and implemented custom applications, workflows, and integrations within the ServiceNow platform using JavaScript, REST APIs, and other development tools, enhancing functionality and meeting specific organizational requirements.

• Implemented persistence layer with Spring JDBC Template to store the data in Oracle database.

• Used Oracle as database and Involved in the development of PL/SQL backend implementation and using SQL created CRUD, Views, Joins, Indexes, and Procedures statements.

• Developed and deployed Spring Boot microservices integrated with Kafka for real-time data processing; created unit and integration tests using JUnit, Mockito, Jasmine, and Karma.

• Built and maintained microservices architecture using Docker, Kubernetes, and AWS (Lambda, EC2, S3, Elastic Beanstalk); migrated legacy monolithic applications to cloud-native services.

• Implemented CI/CD pipelines using Jenkins, integrated Apache Maven for build automation.

• Designed and Integrated RESTful APIs with Swagger UI and Postman for validation and documentation, handled synchronous/asynchronous messaging via ActiveMQ.

• Integrated GraphQL APIs to optimize data retrieval in front-end Angular applications, reducing over-fetching and under-fetching issues compared to REST; enhanced performance and flexibility of client-server communication.

• Conducted end-to-end testing using Cucumber, Protractor, and HTTP-server for full-stack validation of Angular and Spring Boot applications.

• Leveraged AWS services to configure cloud infrastructure, perform data uploads to S3, and manage application deployment via Elastic Beanstalk and EC2 instances.

Technology Stack: JDK 8, Spring, Hibernate, Spring Boot, LINUX, Maven, RESTful Web Services, AWS, Jenkins, Docker, Kubernetes, HTML5, CSS3, React JS, Bootstrap,J2EE, DB2, Java17, JavaScript, jQuery,GraphQL, IBM WebSphere, Ajax, Node.js, MongoDB, SoapUI, Postman, API Life Cycle, JUnit, JMeter, Git, JAX-RS, JIRA, Cucumber, Agile.

Full Stack Java Developer

State of Maryland, Maryland MAR 2021- AUG 2022

Activities:

• Led end-to-end development through all phases of the SDLC, leveraging Agile/Scrum methodologies for iterative delivery and collaboration.

• Designed and developed scalable full-stack applications using Java 11, Spring Boot, Spring MVC, Spring Security, JPA/Hibernate, Thymeleaf, and EJB for enterprise-grade backend solutions.

• Developed automated workflows using ServiceNow's Flow Designer and Script Includes, streamlining cross-functional approval processes and integrating ITSM with internal ticketing systems via REST/SOAP APIs.

• Contributed to ITIL-aligned ServiceNow modules such as Incident, Change, and Asset Management by configuring business rules, client scripts, and UI policies to enhance service delivery and operational efficiency.

• Developed responsive single-page applications using React.js, Redux, JSX, and Virtual DOM; implemented reusable components, routing, animations, and form validations for cross-platform compatibility.

• Implemented GraphQL APIs to unify access across multiple data sources, enabling efficient querying for React-based front-end modules and improving application responsiveness and maintainability.

• Developed single-page, isomorphic web apps using React.js, compatible with desktop, tablet, and mobile devices.

• Utilized HTML5, CSS3, JavaScript, Bootstrap, Angular (6 –9), Node.js, Backbone.js, AJAX, and JSON for frontend and presentation layer development.

• Designed and implemented fault-tolerant, scalable cloud architectures using AWS (EC2, S3, RDS, Lambda, Elastic Beanstalk) and containerized applications with Docker and Kubernetes.

• Automated multi-cloud infrastructure provisioning using Terraform, orchestrating consistent deployments across AWS, Azure, and GCP.

• Established CI/CD pipelines integrating Jenkins, AWS CodePipeline, CodeBuild, and CodeDeploy with Git for version control; utilized JIRA for project tracking and collaboration.

• Designed data workflows and batch processing using Spring Batch, SQLAlchemy Migrations, PL/SQL, MySQL, MongoDB, and Oracle; integrated with Apache Tomcat for web hosting.

• Engineered multithreaded Java-based ETL tools to ingest XML into relational databases using JPA/Hibernate.

• Worked with Apache Cassandra clusters and queried distributed datasets in HDFS using Apache Impala.

• Authored clear README documentation templates to standardize onboarding, installation, and usage guidance across teams.

Technology Stack: Java, Spring Boot, DAO, MVC, Spring Security, AOP, ORM, JPA, TopLink, Hibernate, JavaScript, Angular 2+, React, Redux, HTML5, CSS3, AJAX, Bootstrap, Node.js, Express.js, MySQL, Oracle, SQL, PL/SQL, MongoDB, Cassandra, Kafka, Apache Kafka, Apache Camel, EJB 3.0, HRIS, Swagger, Postman, JUnit, EasyMock, Jasmine, Protractor, Git, Visual Studio, SQL Profiler, AWS, EC2, S3, RDS, Lambda, API Gateway, ECS, Docker, Kubernetes, SSO, SSL, Maven, JIRA, Agile, Scrum

Full Stack Java Developer

First Republic, San Francisco, CA SEP 2019 – FEB 2021

Activities:

• Designed and developed RESTful microservices using Spring Boot, Spring MVC, Spring Web Flow, Spring Security, and Spring Batch, leveraging Java 8/11 features like lambda expressions and streams.

• Migrated monolithic applications to microservices architecture on AWS Cloud, utilizing Docker, Kubernetes, Elastic Beanstalk, EC2, S3, and Lambda for scalable and efficient deployments.

• Integrated microservices and APIs using Apache Kafka, ActiveMQ, AMQP, and Apache Camel, implementing real-time data processing with Spark Streaming and Kafka pipelines.

• Engineered backend logic and data access layers with J2EE, Hibernate, JPA, and PL/SQL across MySQL, MongoDB, and Oracle databases; developed multithreaded ETL tools for XML data ingestion.

• Constructed CI/CD pipelines using Jenkins, AWS CodePipeline, and Azure DevOps for automated deployments; provisioned and managed infrastructure with Terraform, ensuring compliance with HIPAA and GDPR standards across AWS, Azure, and GCP.

• Developed full-stack applications using Python (Django, Flask) and Perl, automating tasks and building backend systems to support web applications.

• Created responsive user interfaces with React.js, Redux, Flux, JSX, React Native, and Angular (6/8/9), incorporating dynamic components and Virtual DOM optimization; styled applications with HTML5, CSS3, Bootstrap, JavaScript, jQuery, AJAX, JSON, and Node.js.

• Built scalable analytics and aggregation systems using Java, Hazelcast, MongoDB, and MySQL, supporting parallel computation for business intelligence insights.

• Designed desktop and mobile applications using Java Swing, Vaadin, GWT, PhoneGap, and JSF, integrating with front-end libraries for seamless user experiences.

• Developed and maintained HRIS applications featuring robust workflows, access controls, and security policies; integrated automation using Terraform and implemented security measures with Spring Security and OAuth2.

Technology Stack: AWS (EC2, S3, Lambda, RDS, Elastic Beanstalk, CodePipeline), Azure DevOps, GCP, Docker, Kubernetes, Jenkins, Terraform, Ansible, Linux, Git, JIRA, Agile, Scrum, Apache Tomcat, IBM WebSphere, Docker Compose, Kubernetes YAML.

Full Stack Java Developer

Zipcar, Boston, MA MAR 2017 – AUG 2019

Activities:

• Involved in creating the Test automation framework from scratch. Used Maven as a build tool and created the framework with selenium, selenium grid, java, TestNG, BDD cucumber-JVM and page object page factory design pattern.

• Used Java, multithreading, JDBC, Quick FIX, Sybase, GemFire, MS SQL, Tibco, Financial Fusion and Eclipse to design and implement high volume, low latency and multithreading FIX trading platform.

• Used JavaScript/jQuery to perform client-side validations on Visual Force pages and to improve the performance of the User interface.

• Implemented serverless solutions using Google Cloud Functions and Cloud Run, optimizing resource utilization and reducing operational overhead, resulting in cost savings of 15%.

• Designed and developed the agent portal using framework AngularJS 2.0 along with HTML5, CSS3 and Typescript.

• Developed and implemented Swing, spring and J2EE based MVC (Model-View-Controller) framework for the application.

• Tested the performance of our API using SoapUI, Postman, and JMeter.

• Successfully integrated GraphQL with existing backend systems, including RESTful APIs and databases, to centralize data access and streamline communication between clients and servers.

• Developed views using JSPs and struts tags and using Tiles framework, improving UI flexibility and providing single point of maintenance.

• Configured Hibernate, Spring and MyFaces (JSF) to map the business objects to MySQL Database using XML configuration file.

Technology Stack: Java, Spring, MyBatis, Struts, JSF, JSP, Servlets, JavaScript, AngularJS, HTML5, CSS, AJAX, bootstrap, NodeJS, ExpressJS, Db2, SQL, PL/SQL, MS SQL Server, Rest, XML, Apache CXF, Eclipse, WebLogic, SVN, JUnit, JMeter, Selenium, Postman, Agile, EC2, S3, RDS, JSP, Servlets, Maven, ANT, JSON, JIRA, SOA, YAML, Tomcat,GraphQL, Linux, Unix, Mac, iOS, Android.

Full Stack Developer

JP Morgan Chase, Plano, TX Nov 2013 – MAR 2017

Activities:

• Developed N-tier client-server business application software using Model View Controller (MVC) Architecture.

• Used Hibernate in persistence layer and developed POJO's, Data Access Object to handle database operations.

• Worked on System security with the use of SSL (Secure socket layer), encryption and used role-based security.

• Successfully contributed to the development of single-page applications (SPAs) that load quickly and provide seamless navigation without full-page reloads, improving performance and responsiveness using React.js.

• Leveraged React's component-based architecture to create reusable UI components, streamlining development, improving code maintainability, and promoting consistency in the application.

• Managed and maintained GCP infrastructure, ensuring high availability, scalability, and security for mission critical applications

• Integrated README documentation into the continuous integration/continuous deployment (CI/CD) pipeline, ensuring that documentation is automatically updated with each code release.

• Worked on Big Data Integration &Analytics based on Hadoop, SOLR, Spark, Kafka, Storm and web Methods

• Developed SOA architecture using SOAP and RESTful and Preparation of Java and JSP coding standard checklist.

• Involved in the development of Servlet, Struts Action classes, Business Objects, Web Services.

• Used the spring validation and Tiles Framework in the presentation layer.

• Integrated GCP Secrets Manager to securely store and retrieve application secrets, passwords, and API keys.

• Had knowledge on Kibana and Elastic search to identify the Kafka message failure scenarios.

• Designing and developing EJB components for business logic.

• Created GraphQL schemas tailored to specific project requirements, optimizing data models and query execution for improved performance and reduced latency.

• Developing RESTful or SOAP services using Spring Boot and EJB. Created UIs with JSP and Spring Tag Libraries. Built APIs in Python for backend services.

• Developing dynamic web pages and forms using JSF.

• Created and maintained scalable J2EE applications tailored to run on IBM WebSphere servers, ensuring high performance and reliability in enterprise environments.

• Implementing or exposing the Micro services to base on RESTful API utilizing Spring Boot with Spring MVC.

• Used Hibernate Transaction Management, Hibernate Batch Transactions, and Hibernate cache concepts.

• Involved in writing the Maven build file to build and deploy the application.

• Involved in writing JUnit Test Cases and Ant Build Script.

Technology Stack: Java, JSP, HTML, CSS, GCP, Servlets, J2EE, EJB 3.0,GraphQL, XML, Kafka,SOAP, WSDL, JSF,Oracle, Eclipse, JAX-R, JAX-WS, PL/SQL, Apache Server, Struts, DAO, AOP Spring, MVC Spring, React Js,Hibernate, IBM WebSphere, Junit, Maven.

Java Developer

Biocon Research, Bangalore, IND SEP 2012 – AUG 2013

Activities:

• Involved in Requirement Analysis. Preparing Requirement Analysis Document.

• Involved in preparing different Artifacts HLD, LLD using Activity Diagram, Sequence Diagram, Class Diagrams.

• Involved writing code for Request Processor class to extend the functionality of struts Controller.

• Applied patterns like Session Facade, Service Locator, Front Controller, Abstract Factory, Factory method, Singleton, Data Transfer Object etc.

• Involved in writing code for Action Class, Business Delegate, Session Bean, Entity Bean and DAO.

• Designed and optimized message queues using AMQP, enhancing system scalability and responsiveness, and reducing message processing times by 25%.

• Developed Java End Point Service, EJB End Point Service, Secure Web services with RPC, Document Style and of Using Axis 1.3 and JBOSS.

• Developed robust and maintainable automated test scripts using TestNG for web applications, APIs, or mobile applications.

• Designed and maintained databases using Python-based libraries and tools, including SQLAlchemy and Django ORM.

• Developed web pages using Struts, JSP, Servlets, HTML and JavaScript.

• Involved in designing and implementation of MVC design pattern using Struts framework for Web-tier.

Technology Stack: UML, Java, J2ee1.4, Struts, Axis 1.3, Open DTP Connector, EJB3.0, JSP, JSF, Web services, Eclipse 3.2 PDE JBOSS 6.0,, JavaScript, Eclipse with Lomboz plug-in, TestNG,IBM WebSphere, Rational Rose, JMeter, VSS, Oracle.

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