Stack Developer Senior Java

Pratyusha Mandava

Java Technical Lead Senior Java Full Stack Developer

Email: ****************.*@*****.*** Mobile No : +1-901-***-****

LinkedIn: www.linkedin.com/in/pratyusha143

Professional Summary

11+ years of strong IT experience in development and implementation of enterprise applications using JAVA, J2EE, Java Script with 5+ years of experience in APIs design and development, used APIGEE and MuleSoft as API Gateways.

Excellent designing, debugging, troubleshooting skills.

Extensive experience in building microservices using Rest API and Spring Boot. Used Jenkins for microservices deployment.

He has good experience with TDD and pair programming, have worked on AngularJS, NodeJS frameworks along with some exposure on ReactJS.

Developed unit test cases using Mockito framework for testing accuracy of code and logging is done using SLF4j + Log4j.

Used Docker for creating Docker images for launching containers on PCF instances.

Strong in databases like Oracle, SQL Server, DB2, MySQL.

Experience multi thread programming using Thread Executor, Thread Local

Have Good knowledge on the Micro service architecture and design patterns of Micro services.

Expert in developing Micro Services using Spring Boot.

Experience front-end UI development skills using scripting languages like HTML5, CSS3, JavaScript, JQuery, AJAX, JSON, Angular, jQuery Plug-ins.

Strong in databases like Oracle, SQL Server, DB2, MySQL.

Strong experience on AGILE (SCRUM).

Experience in designing and developing web-based applications using Java, J2EE, Web Services, both SOAP/WSDL and REST, Spring MVC framework, spring, Spring Security, Hibernate, Struts, Oracle, and SQL.

Have very good experience in supporting production environment. Supporting 24/7 on rotation basis.

Excellent analytical, logical, and programming skills, Self-Motivated, Self-Starter, Team Player can work with minimal supervision with effective Communication skills and Organizational skills combined with attention and Time management skills.

Ability to work independently.

Expertise in continues build and deployment tools like Jenkins and release process.

Establish and maintain productive working relationship with management, Clients, and team members.

Designed and developed the framework to consume the web services hosted in Amazon EC2 instances.

Installed application on AWS EC2 instances and configured the storage on S3 buckets.

Perform S3 buckets creation, policies and the IAM role based polices.

Created monitors, alarms, and notifications for EC2 hosts using Cloud Watch.

Migrated applications to the AWS cloud.

Involved in writing java API for Amazon Lambda to manage some of the AWS services.

Expertise in Angular framework and its ability to create simple and scalable code for SPA.

Hands on Experience on Angular CLI (Command line Interface).

Designed, configured and managed public/private cloud infrastructures utilizing Amazon Web Services (AWS), including EC2, Elastic Container Service (Docker Containers), Elastic Beanstalk, S3, Cloud Front. Implemented robust testing strategies, including unit testing, integration testing, and end-to-end testing, to ensure the reliability, scalability, and performance of the WES/WCS solution

Good amount of work done on Reactive forms or Web Forms 2.0 in Angular and their Validations.

Create desktop application with Angular and Unit Test with Karma-Jasmine, Mockito, JUnit.

Expertise in using Angular JS directives, Controllers, Filters, Services, Templates, Events, and Injectors.

Experience in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept.

Experience in building application with React JS, Redux, Require JS, in MVC architecture.

Used Apache Kafka for messaging services and broadcast.

Leveraging Apache Kafka for sending huge invoice data to the vendors.

Experience working with APIGEE Edge, Developer Portal & APIGEE On Premise and Hybrid platform.

Good understanding of APIGEE Architecture. Worked on transition from legacy products to newer versions of APIGEE Edge.

Created Shared Flow for IP whitelisting, OAuth2, CORS, JWT token Creation and Http signature.

Design, build, manage and operate the infrastructure as a service layer (hosted and cloud-based platforms) that supports the different platform services.

Using APIGEE configuration and generated proxies service discovery definition, telemetry definition, logging, and security.

Troubleshooting and monitoring API proxies running on APIGEE using Trace tool.

Technical Skills

Java Technologies

Java 1.11, J2EE (Servlets, JSP, JMS, JNDI), Jakarta Apache Struts 1.2, Spring 4.5, Hibernate3, Ajax, JUnit, MQ Series, Web Services, Spring Boot

Web Development

Java script, JSP, Servlets, jQuery, AngularJS, JSON, SOAP, REST

Application/Web Servers/Messaging

Web sphere 8.5/7.1, Tomcat 3.x/4.x, Web logic 8.x, JMS2.0/TIBCO MQ

Operating Systems

Windows XP/2000/NT, UNIX/Linux, and Mac OS X

IDEs/Other Tools

Eclipse 3.1, Net Beans, ANT and Log4j

Languages

Core Java 1.11, J2EE, Spring MVC, Hibernate,

Java Reflection API, Java Persistence API (JPA), JSON, Web Services (RESTful & SOAP), Docker, Kubernetes

RDMS

Oracle 11g, SQL Server,MySQL

Frameworks

Struts, Spring MVC, Hibernate, Cucumber, RabbitMQ

Build & Deployment

Maven, ANT, Gradle

CICD Tools

Log4J, JUnit, TestNG, Maven, Jenkins Cucumber, Splunk, Jira, Couch Base,

Cloud Platforms

Azure, PCF, Amazon EC2, Amazon S3, AWS Lambda, GCP, Amazon SQS, AWS Identity and access management, AWS Cloud Watch

Logging Frameworks

Splunk, ELF

Professional Experience

American Express, phoenix, AZ May2023- Sep 2025

Senior Java Full Stack Developer

Responsibilities:

Involved in Design, Development of SDLC. Working in AGILE environment and participated in SCRUM meetings for the code reviews.

Designed the application using Java/J2EE Framework and Technologies using various design patterns, Developed Application to assess JSON and XML from Restful web service from consumer side using React.

Developing the web application using HTML, CSS, JSP, JavaScript, Bootstrap, React and Java, utilizing Redux for state management.

Use of redux middleware for logging and talking to the asynchronous API and used nginx as a proxy to interact with Rest services and interacting with Database using Jersey framework.

Creating responsive design and developed a single-page responsive website that could be served to desktop, Tablets and mobile users using ReactJS mainly used for authentication, authorization, and session maintenance.

Responsible to work on a Java API built using Hibernate, Spring MVC to map the business objects to Database using XML configuration file and Annotations.

Implemented REST Microservices using spring boot. Generated Metrics with method level granularity and Persistence using Spring AOP and Spring Actuator.

Involved in writing and reviewing unit test cases using JUnit and unit test cases for React application using testing-library.

Used MYSQL as primary relational database to manage data, with a focus on optimizing queries and maintaining data integrity using stored procedures.

Implemented security measures, such as OAuth2 and JWT, to ensure the privacy and security of data and transactions in the microservices.

Developed and updated the existing page layouts, navigation and presented designs and concepts to the clients and the management to review.

Use of JSX in the React components for cleaner HTML like structure inside JavaScript, Smoke Test and Acceptance Testing is performed with Selenium in multiple Java platforms.

Well versed with core Java concepts like Collections, Swing, Serialization and Servlets & JSP.

Worked with the automation team to understand the Selenium scripts and review the code, run the tests, wrote selenium scripts, and review the results and provide inputs to the team.

Worked on developing Restful endpoints to Cache application specific data in in-memory data clusters like Redis and exposed them with Restful endpoints by using Redis Cache

Took part in Continuous Integration and Continuous Deployment (CI/CD) with Jenkins and Docker for build, ship, to run distributed applications

Maintained the Production and the Test systems and worked on bug fixing and enhancements on change requests.

Worked on the Couchbase, by implementing the buckets, keys and metadata by maintain the Couchbase SDK.

Environment Software: Java 1.8, Spring Boot, REST API, GIT, Maven, JPA, Angular 5, SQL Server, Azure Resource groups, Azure Insights, Azure Key vault, Azure AKS, Azure functions, Splunk, Mockito, Kafka, Cosmos DB, AWS, Couchbase, Vertx.

T-Mobile, Bothell, WA Aug 2021 – April 2023

Sr. Java Full Stack Developer

Responsibilities:

Understanding the existing work process and analysis on the automation of the process.

Supported for the Canvas Dashboards for multiple modules using AngularJS for front end and Spring Boot for developing the micro services interacting with the Cosmos DB.

Converted a monolithic app to micro services architecture using Spring Boot using 12-factor app methodology. Deployed, Scaled, Configured, wrote manifest file for various Micro services in Azure.

Implemented REST Microservices using spring boot. Generated Metrics with method level granularity and Persistence using Spring AOP and Spring Actuator.

Implemented Hysterix a Latency and Fault Tolerance system for Distributed Systems.

Used spring config server for centralized configuration and App Insights for centralized logging. Used Concourse and Jenkins for Micro services deployment.

Implemented various resources in Azure using Azure portal, PowerShell on azure resource manager deployment models.

Worked on Enzyme 3.0 for to avoid creating legacy code using TDD.

Developed story/task by following TDD and Pair programming concepts. Providing daily status in scrum meetings with the client. Mentored new team members on effective usage of blend of Spring Boot /JPA and Java

Involved in creation of APIGEE proxies for the API’s created and integration with the Azure platform.

Creating new and modifying existing APIGEE policies.

Experienced in WCAG 2.0 for prioritized and contextual implementation.

Worked with the Enzyme for the mount and transverse React.js component trees.

Developed processors which consumes DEEP events to process the payload and invoking orchestration API.

Configured PCF for microservices deployments, CI/CD pipelines and set up configuration server for properties file.

Used Splunk for the engineering dashboards used by the developers for easy track of application health.

Designed and developed the framework to consume the web services hosted in Amazon EC2 instances.

Installed application on AWS EC2 instances and configured the storage on S3 buckets.

Perform S3 buckets creation, policies and the IAM role based polices.

Created monitors, alarms, and notifications for EC2 hosts using Cloud Watch.

Migrated applications to the AWS cloud.

Worked with the WCAG 2.0 to provide required recommendations for working web content.

Involved in writing java API for Amazon Lambda to manage some of the AWS services.

Used webjars / node for using angular 2 dependencies.

Used NPM for installing, update the dependencies for angular 2, socket.io, react js etc.,

Used system js /webpack / gulp for packaging the angular 2 application.

Expertly used bootstrap, CSS3, data tables for styling the application GUI.

Used Kanban for testing process to get clear snapshot of work in progress and status of each task at anytime.

Expertly used Angular 2 Directives, Pipes, Event Binding, Data Binding, Interpolation, Injection etc., for building the GUI.

Used different user interface technologies HTML, JavaScript, TypeScript, jQuery, Angular 2, and JSON for developing the GUI of the application.

Used Apache Kafka for messaging services and broadcast.

Leveraging Apache Kafka for sending huge invoice data to the vendors.

Environment Software: Java 1.8, Spring Boot, REST API, GIT, Maven, JPA, Angular 5, SQL Server, Azure Resource groups, Azure Insights, Azure Key vault, Azure AKS, Azure functions, Splunk, Mockito, Kafka, Cosmos DB, AWS.

Nike, Portland, OR July 2020 – July 2021

Sr Full Stack Developer

Responsibilities:

Worked in an Agile methodology environment with a Content Management system for workflow management and content versioning.

UML diagrams like class diagrams, interaction diagrams (sequence and collaboration), use cases, and activity diagrams were used.

Created the Application using React.JS and Node.js libraries NPM, gulp directories to generate the desired view, and flux to root the URLs properly.

Used rich user interface with CSS3 and AJAX calls along with pseudo-elements, transformations, and gradients.

Implemented Java EE components using Spring IOC, Spring Transactions, and Spring Security modules.

Used Apache Mesos and Kubernetes to deploy and manage Microservices.

Defined and constructed layers, server-side objects, and client-side interfaces based on J2EE design patterns. RESTful web services using Jersey for JAX-RS implementation.

Tested REST services using google chrome’s POSTMAN plugin.

Consumed messages from JMS beans and Active MQ, integrated Active MQ services with Beans.

Used Jenkins as an AWS code deploy plug-in to deploy to AWS. Experience with DevOps methodologies, implementing CI/CD Pipelines using toolsets like GIT, Jenkins, Chef, and

AWS.

Deployed Spring Boot Microservices into AWS EC2 container service using AWS admin console and used lambda to run applications in AWS console.

Worked on Camel-based integration middle-ware solution for provisioning Services by design and the implementation of business logic and data processing routes using Apache Camel.

Wrote PL/SQL queries, and stored procedures for applications to execute as part of a scheduling mechanism.

Implemented Hibernate concepts such as lazy loading, dirty bit checking, optimistic locking, and transactions.

Creating and updating documentation relating to many aspects of Linux/Unix systems administration workflow.

Worked with Splunk to log and analyze defects status.

Environment Software : Java, J2EE, Spring, Web services, Microservices, Restful, POSTMAN, Apache Camel,

Drools, Active MQ, JMS, JIRA, JUnit, Spring Cloud, AWS, Apache Camel, MongoDB, JSON, HTML5,

CSS3, Python, JavaScript, Bootstrap, jQuery, Angular, Maven, AJAX, jQuery, ANT, Gradle Java Beans,

Design Patterns, Linux/Unix, JBOSS, Agile Methodology, DevOps,

HCSC, Plano, TX Dec 2017 – May 2019

Sr.Java Developer

Responsibilities:

Experienced with Software Development Life Cycle (SDLC) with object-oriented business process and worked on developing Service-oriented architecture (SOA) applications in an Agile development environment.

Worked on business components using core Java concepts and classes like Inheritance, Polymorphism, Collections, Serialization, and Multithreading.

Developed various Web Services like SOAP/HTTP, SOAP/JMS, and SMTP using SOA technologies such as SOAP, WSDL, and UDDI.

Developed presentation layer includes UI components, validations using HTML5, applying styles with CSS while using jQuery to make Ajax calls.

Developed a dashboard based on Ajax calls with Business Customers Count, Flags, and Real-time graphs for Analytical Reporting using NodeJS.

Used ReactJS to create views to hook up models to the DOM and synchronize data with the server as a SPA.

Used Jackson Custom Mappers for Custom manipulation for the date, and currency conversations on JSON Data.

Developed POJO objects and used Hibernate as the Object-Relational Mapping (ORM) tool to access the persistent data from SQL Server.

Build PL/SQL functions, stored procedures, and views and configured using Oracle Database10g.

Deployed applications on Web Logic Application Server and performed required configuration changes.

Used JIRA for bug tracking, project-level issue tracking, and environmental issue tracking.

Prepared Unit test case using JUnit and used Jenkins for continuous integration testing.

Used Git Hub extensively as a versioning tool and used Maven for automated building of projects.

Environment Software: Java, J2EE, SOA, JSON, ReactJS, NodeJS, AJAX, Spring, EJB, Hibernate, IntelliJ, Angular, Oracle 10g, PL/SQL, XML, HTML5, CSS3, JavaScript, Bootstrap, SOAP, Maven, JUnit, JIRA, Jenkins, GIT.

Met Life, NYC, NY May 2016 – Nov 2017

Java Developer

Responsibilities:

Interacted with Clients to gather business requirements and generated requirement specification documents.

Leading the project team, specified design and coding standards.

Developed web modules by using Spring Boot, Spring MVC 3.2, Hibernate 3.

Implemented SSO using site minder and spring security.

Implemented pre authentication and the data base security using spring security.

Experience in working with Spring JMS for messaging.

Developed and deployed the application on Web sphere application server.

Used Toad to interact with the database.

Involved in development of Search Screen Module which is extensively used by application.

Have developed front end GUI with AngularJS, java script and jQuery.

Experience with the features of Angular JS such as directives, modules, and routing.

Highly used Angular JS router to build single page application for navigate through the different status and multiple modals.

Worked with QA team on daily basis in fixing the reported bugs/defects and checking cross platform compatibility Used JIRA for bug tracking.

Involved in AGILE Methodology process which includes bi-weekly sprint and daily scrum to discuss the design and work progress.

Evaluate JSON from the server and making Ajax requests using XHR object and handling JSON objects.

Created Interfaces between the systems by using REST web services. They are used to send the messages from client to service.

We have implemented the second level cache in Hibernate using EH Cache.

Used Team City for continuous integration.

Involved in code review of the team members and implemented best practices.

Implemented CI (Continuous Integration) using Team City and GIT.

Responsible for analyzing Production incidents and Provide solution.

Suggest architectural improvements, design and integration solutions, and formulate methodologies to

optimize object-oriented software.

Provide architectural review and recommendations.

Participated in several two-week iterations developing an application using agile.

Environment Software: Java 1.8, Spring, Angular2, GIT, Maven, Hibernate, Angular JS, Oracle 11g, JSP, HTML, AJAX, CSS, Web Sphere Application Server.

Biocon LTD, Bangalore, India March 2014 – Dec 2015

Project: Predictive Analysis:

Responsibilities:

Gather detailed business requirements and use cases and translate technical specifications into product requirements.

Participated in several two-week iterations developing application using agile methodologies.

Design and Developed Restful API using Spring Framework.

Good knowledge on micro service architecture

Developed micro services using the Spring Boot.

Migrating existing application into micro services architecture using Rest APIs, spring boot.

Prepare Java/J2EE development structure for Eclipse, Maven.

Implemented security using Spring Security and OAUTH2.

Implemented Persistence layer using Hibernate to interact with the Oracle database, Used Hibernate Framework for object relational mapping and persistence.

Extensive experience using framework APIs like spring and Hibernate.

Experience in writing test cases using JUnit testing framework.

Experience in working with Spring JMS for messaging.

We have implemented the second level cache in Hibernate using EH Cache.

Implemented RESTful documentation using Swagger Framework.

Involved in developing the UI panels using Angular JS, JSON, CSS.

Involved in the creation of interface to manage user menu using AngularJS.

Developed Presentation and Controller layers using JSP, HTML, Custom Tag Libraries, JSTL, Java Script, Business layer using Spring (IOC), DTO, JTA, and Persistent layer DAO, Hibernate for all modules.

Experience in Hibernate 3.0 which includes integrating legacy databases, writing custom CRUD statements, integrating stored procedures and functions, and also performed polymorphic associations.

Created SQL queries for the Database layer by studying the required business requirements.

Environment Software: Java 1.8, spring Boot, RESTFul API, Hibernate, Angualr JS, TIBCO MQ, Oracle 11g, JSP, HTML, AJAX, CSS, Git, WebSphere 8.0 & 8.5, Maven.

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