Senior Java Fullstack Developer

VAMSHI B

Email: ***************@*****.*** Phone: +1-404-***-****

Sr. Java Full Stack Developer

Professional Summary:

Highly accomplished and versatile Senior Java Full Stack Developer with 9+ years of comprehensive experience in architecting, developing, and delivering scalable web and enterprise applications across Banking, Insurance, E-commerce and Retail sectors. Expertise in Java/J2EE, Spring Boot, Microservices, RESTful APIs, Angular and front-end/backend integration, with a strong emphasis on clean code, performance optimization, and secure design principles.

Strong experience with the Spring ecosystem, including building scalable microservices using Spring Boot/MVC, implementing IoC and AOP for clean architecture, adopting JDBC/JTA/ORM for data access, and applying Spring Cloud components (Eureka, Ribbon, Zuul) for service discovery, load balancing, and API gateway solutions.

Handson experience in implementing Java Message Service (JMS) for reliable, asynchronous enterprise messaging, integrating Spring Boot microservices with messaging platforms such as Apache Kafka, ActiveMQ and RabbitMQ to enable scalable, decoupled, and highperformance enterprise applications.

Expert in Java and the Spring Framework ecosystem, including Spring Boot, Spring MVC, Spring Data JPA, and Spring Security for building scalable and secure microservices.

Extensive experience in Spring Cloud for microservice communication, service discovery with Eureka, loadbalancing with Ribbon, a`nd API gateway configuration using Spring Cloud Gateway/Zuul.

Designed and delivered modern, responsive UIs with React.js and TypeScript, building reusable components and state management patterns (Redux/Context API) to create smooth, user-friendly experiences.

Developed and maintained scalable backend services with Node.js and Express.js, exposing RESTful and GraphQL APIs and integrating with databases like PostgreSQL and MongoDB for reliable data exchange.

Improved performance and SEO by applying server-side rendering (SSR) with Node.js and optimizing client–server communication.

Deployed full-stack applications on AWS (EC2, Lambda, API Gateway, S3, CloudFront, Route53) with CI/CD pipelines and Docker/Kubernetes, ensuring high availability and quick release cycles.

Proficient in developing web applications using React.js (Hooks, Context API, Redux) with TypeScript, JavaScript (ES6+), HTML5, CSS3, SASS, LESS, Bootstrap, and RESTful API integration. Skilled in building responsive, dynamic, and high-performance UIs with React’s component-based architecture to ensure scalability and maintainability.

Implemented modern React features such as functional components, custom hooks, React Router, and state management with Redux/Context API. Experienced in creating reusable component libraries, applying two-way data binding patterns, and leveraging JSX to deliver intuitive, user-friendly front-end solutions.

Experienced in implementing Jenkins driven CI/CD pipelines to build, test, and deploy Java Spring Boot microservices, applying Docker for efficient containerization and seamless deployment across environments.

Deployed and managed enterprise Java web applications on Oracle WebLogic, IBM WebSphere, JBoss EAP/WildFly, GlassFish and Apache Tomcat. Performing server configuration, application deployment, performance tuning, and production environment support.

Designed and developed SOA and Microservices architectures for J2EE applications using Spring Boot, RESTful (JAX RS) and SOAP (JAX WS, JAX RPC, JAX R) web services with Apache CXF, Jersey and Apache Axis. Deployed scalable, containerized solutions on AWS and PCF, integrating with cloud native services for high availability and performance.

Developed ETL pipelines in IBM DataStage for high-volume data ingestion, transformation, and load across Oracle and PostgreSQL.

Implemented data modeling and transformations in DBT with version-controlled SQL, improving pipeline reliability and data quality.

Automated ETL workflows to support regulatory reporting, fraud detection, and analytics, reducing data latency and manual intervention.

Deployed and scaled Spring Boot microservices on Red Hat OpenShift using container orchestration and service mesh.

Automated builds and deployments via OpenShift Pipelines (Tekton) integrated with Jenkins/Git, streamlining CI/CD.

Optimized microservice performance with OpenShift resource quotas, health checks, and monitoring (Prometheus/Grafana).

Expertise in Core Java (8/11/17) with strong skills in OOD/OOP, multithreading, exception handling, Collections Framework, annotations, and modern features including lambdas, Streams API, Date and Time API (java.time), JPMS modules, records, and sealed classes.

Experience in Pivotal Cloud Foundry (PCF) and Engagement using Spring Boot.

Experienced in deploying and managing Java/Spring Boot Microservices on AWS using EC2, S3, RDS, ELB and Route 53. Implemented serverless applications with Lambda, asynchronous messaging via SQS/SNS and security with IAM. Skilled in monitoring and logging with CloudWatch.

Containerization using Docker and orchestrating with Kubernetes/EKS. Optimized deployments through ECR and CI/CD pipelines (CodePipeline, CodeBuild, CodeDeploy).

Utilized Apigee API Gateway in microservices projects to expose APIs securely with OAuth2, JWT, mTLS, rate limiting, and threat protection policies.

Experienced in building APIs with Java and Python, deploying on Linux environments, and integrating with Elasticsearch pipelines for large-scale Data Ingestion and analytics

Designed and deployed API proxies and shared flows to standardize authentication, error handling, and traffic management across services.

Experienced in developing scalable data models using Hibernate ORM Framework, employing Hibernate Annotations to streamline entity mapping, reduce XML configuration, and enhance database persistence operations.

Proficient in build automation and dependency management using Maven and Gradle, configuring multi module projects, managing transitive dependencies, and automating packaging and deployments across multiple environments to streamline the CI/CD pipeline.

Proficient in designing and optimizing relational database schemas in Oracle, MySQL, DB2, and MS SQL Server, utilizing advanced SQL and PL/SQL for complex queries, stored procedures, triggers, and performance tuning.

Experienced in working with NoSQL databases including MongoDB and Cassandra for high volume, distributed, and scalable data storage solutions.

Proficient in implementing automated unit testing using JUnit and Mockito within a test driven development (TDD) approach, leveraging assertions, mocks, and stubs for comprehensive coverage; skilled in architecting centralized logging frameworks with Apache Log4j and SLF4J to optimize maintainability, observability, traceability, and root cause analysis in enterprise level Java applications.

TECHNICAL SKILLS:

Languages: Java 8/11/17, C#, SQL, PL/SQL, Python

Java/J2EE Technologies: Core Java, JDBC, JSP, Servlets, JMS, Active MQ, RabbitMQ, JSTL, RESTful(JAX-RS), SOAP(JAX-WS), Struts, Spring, JAAS, Spring Security, JWT, OAuth2, JTA, terraform, JCA, Hibernate, Ajax, EJB, JSON and Webservices (SOAP, REST), Groovy, Collection API, One-App/ One-Date Architecture, Low-Level Design, Design Patterns, Requirement analysis, Debugging, Agile Methodologies and High-level Design.

Spring Framework: Spring MVC, Spring Boot, Spring Core, Spring Data JPA, Spring Cloud(Config, Netflix OSS, Gateway), Spring REST, Spring AOP, Spring Security, Hibernate, XSLT Processing and Spring Batch.

Front-End Technologies: HTML5, CSS3, JavaScript, Bootstrap, Material UI, TypeScript, Angular 15/16, jQuery, Node JS, React JS, Redux, NgRx, Webpack, Angular CLI, XML, Jest, AJAX, jQuery and JSON.

IDE Tools: NetBeans, Eclipse, IntelliJ, VS Code, Postman, Swagger UI and Spring Suit Tools.

Build Tools: Maven, Gradle, Jenkins, SonarQube, Nexus, Artifactory, GitLab CI and GitHub Actions.

Version Controls: Git, GitHub, Bitbucket, GitLab and SVN.

CI/CD: Jenkins, GitLab CI/CD, GitHub Actions, Circle CI, Bamboo, Argo CD and Sonarqube.

Testing Tools: Junit 4/5, Selenium, Cucumber, Zest,TestNG and Mockito.

Logging: Log4j2, SLF4J, Redis DB and ELK Stack.

Messaging/IoT: MQTT, Pub-Sub Communication and Kafka

ETL: IBM Datastage, DBT and Apache Airflow.

AI Assisted Coding: GitHub Copilot and GitHub CodeQL.

Monitoring Tools: Grafana and Prometheus.

Container & Deployment Tools: RedHat Openshift and Tekton

API Management Platform: Apigee, AWS API, Oracle API platform and Snap Logic.

Web Services/APIs : SOAP, WSDL, XML, SOA, JAX-WS, JAX-RPC and REST.

SQL Databases: Oracle, MySQL, SQL Server, IBM DB2 and PostgreSQL.

NoSQL Databases: MongoDB, Cassandra and DynamoDB.

Tools & Productivity or Development Tools: GitHub Copilot, Git, Bitbucket, VS Code, IntelliJ IDEA, Postman, Swagger, JIRA, Confluence

Application Servers: Apache Tomcat, JBoss/WildFly, WebLogic, IBM WebSphere, Glassfish and Jetty

Cloud Technologies: AWS (EC2, Lambda, EBS, ECS, Amazon Kinesis, EKS, IAM, KMS, S3, CloudWatch, CloudTrail, CodePipeline, CodeBuild, CodeDeploy, Fargate) and Azure (Azure VMs, Azure Blob Storage, Azure Kubernetes Service (AKS), Azure App Services, Azure Functions, Azure Container Instances, Azure Virtual Network, Azure Monitor, Azure DevOps, Azure Pipelines, Azure Repos, Azure Service Bus, Azure Key Vault), Docker, Kubernetes.

Professional Experience:

Sr. Java Full Stack Developer

US Bank, Minneapolis, MN Feb 2024 – Till date

Enterprise Digital Banking Modernization:

At U.S. Bank, I am part of the core team developing a Spring Boot microservicesbased digital banking platform deployed on AWS Cloud to deliver secure, scalable, and compliant banking services. The platform features digital account management, realtime funds transfer and bill payments, transaction history with downloadable statements, fraud detection alerts via Kafka event streams, and a mobilefriendly omnichannel interface. On the backend, I design and build microservices in Spring Boot, deploy them on AWS EC2 and ECS, store transactional data in RDS, manage documents in S3, secure access with IAM, and monitor performance through CloudWatch. On the frontend, I develop responsive Angular (v8–15) applications using TypeScript, RxJS, NgRx, SCSS, and Bootstrap to ensure fast, accessible, and engaging customer experiences. I integrate Apache Kafka for highthroughput event streaming, implement RESTful (JAXRS) and SOAP (JAXWS) services for system interoperability, and enforce PCI DSS and SOX compliance. Through architectural optimization and CI/CD automation with Jenkins, I have helped reduce transaction latency by 30% and shorten deployment cycles by 25%.Responsibilities:

Designed and developed Microservices using Spring Boot, Hibernate ORM, JDBC, and Spring DAO for core banking services such as loan processing, payment scheduling, and fund transfers, integrating with Oracle and PostgreSQL databases to ensure highperformance, secure, and reliable data transactions.

Developed RESTful web services using Spring MVC/Boot and JSON for secure, highthroughput microservice communication with thirdparty payment systems. Chose REST for lighter payloads and faster integration, ensuring reliability via Kafka streaming, Swagger docs, and Postman-API testing.

Implemented SOA and OOP principles using REST and SOAP services in core banking systems to enable scalable, maintainable, and interoperable architectures. Developed REST for lightweight, highperformance APIs and SOAP for secure, contractdriven integrations.

Integrated Elasticsearch with Spring Boot microservices to provide near realtime, fulltext search and advanced filtering across millions of banking transaction records, improving query performance by 80% andenabling faster fraud detection and compliance reporting.

Designed and delivered modern, responsive UIs with React.js and TypeScript, building reusable components and state management patterns (Redux/Context API) to create smooth, user-friendly experiences.

Developed and maintained scalable backend services with Node.js and Express.js, exposing RESTful and GraphQL APIs and integrating with databases like PostgreSQL and MongoDB for reliable data exchange.

Improved performance and SEO by applying server-side rendering (SSR) with Node.js and optimizing client–server communication.

Deployed full-stack applications on AWS (EC2, Lambda, API Gateway, S3, CloudFront, Route53) with CI/CD pipelines and Docker/Kubernetes, ensuring high availability and quick release cycles.

Developed responsive, reusable UI components using React.js (Hooks, Context API, Redux) with TypeScript, HTML5, CSS3, and SCSS, implementing server-side rendering (SSR) with Node.js and orchestrating APIs for seamless client–server communication. Designed component-based architecture to improve maintainability, accelerate feature delivery, and ensure UI consistency across enterprise applications.

Built high-performance, cross-browser compatible UIs with React.js, JavaScript (ES6+), Bootstrap, and responsive design principles, optimizing page load times and delivering seamless, user-friendly experiences across desktop and mobile devices.

Partnered with crossfunctional teams to deliver scalable, AWShosted microservicesbased banking applications, meeting strict SLAs and regulatory standards (PCI DSS, SOX).

Integrated Apache Kafka with Spring Boot in the digital banking platform for highthroughput, faulttolerant asynchronous messaging between microservices, enabling realtime transaction processing and ensuring schemavalidated data consistency.

Leveraged GitHub Copilot within IntelliJ and VS Code to generate optimized boilerplate code, unit tests, and API integrations in Java Spring Boot microservices and Angular UIs, improving development speed by ~20% and reducing manual repetitive coding.

Automated monitoring scripts in Python for log parsing and anomaly detection on Linux-based banking microservices.

Utilized GitHub Copilot for code refactoring, enhancing code readability, maintainability, and ensuring adherence to enterprise coding standards.

Accelerated REST API integration, DTO design, service layer implementation, and SQL query optimization using AIassisted code completion in the digital banking platform, enabling faster, errorfree development and improved sprint velocity in Agile delivery cycles.

Engineered Spring Boot microservices for core banking modules like Integration, Validation, Decisioning, Auditing, and Exception Handling to support modular, faulttolerant workflows that enabled faster onboarding of new financial services and reduced release cycle time.

Secured RESTful APIs using Spring Security with OAuth2 and JWT, implementing rolebased access control (RBAC) and tokenbased authentication to safeguard sensitive financial data, meet PCI DSS compliance, and prevent unauthorized access in highrisk banking transactions.

Leveraged AWS services including EC2, S3, RDS, ECS, EKS, IAM, SNS, SES, and CloudWatch to deploy and manage scalable, highavailability Spring Boot microservices for realtime banking transactions, ensuring secure access control, automated notifications, and proactive system monitoring.

Designed and implemented real-time data pipelines using Amazon Kinesis Data Streams and Firehose to ingest, process, and deliver high-throughput streaming data to AWS S3 and Redshift.

Integrated Kinesis Data Analytics with AWS Lambda for real-time event processing, enabling low-latency insights and automated business workflows.

Developed automated CI/CD pipelines using AWS Code Pipeline, Code Build, Code Deploy, and CloudFormation for reliable and repeatable deployments.

Deployed and managed containerized applications using Docker, Kubernetes, AWS Fargate, and PCF, enabling Dev/Test/Prod separation.

Built RESTful APIs backed by MongoDB and Cassandra, using Spring Data, Swagger, and other modern integrations for NoSQL storage.

Developed reusable Angular services, modules, and components using Angular CLI, TypeScript, and RxJS to integrate secure REST APIs, enabling scalable, highperformance, and realtime transaction workflows in digital banking platform.

Configured and managed version control with Git and SVN, performing peer code reviews via Bitbucket/Stash to enforce coding standards, maintain code quality, and support collaborative development across distributed teams in digital banking platform.

Configured and maintained Private Cloud CI/CD infrastructure for U.S. Bank’s digital platform using Jenkins, Artifactory, SonarQube, and private Docker registries to enable secure, automated microservices deployments.

Environment: Java 8/11/17, Spring Boot, Spring MVC, Spring Security, Hibernate, JDBC, Oracle 11g, PostgreSQL, MongoDB, Cassandra, RESTful APIs, SOAP, JSON, React.js, Express.js, Node.js, TypeScript, HTML5, CSS3, SASS, SCSS, JavaScript, Bootstrap, JSP, jQuery, Apache Kafka, Swagger, IntelliJ IDE, AWS (EC2, S3, Lambda, Elastic Kubernetes Service (EKS), Amazon Kinesis, Elastic Beanstalk, Elastic Search, API Gateway, CloudFront, CloudFormation, CloudWatch, RDS – PostgreSQL/MySQL, DynamoDB, SNS, SQS, Pivotal Cloud Foundry (PCF), Jenkins, Docker, Kubernetes, Puppet, Git, SVN, Bitbucket, Stash, Jira, SonarQube, Artifactory, and Agile/Scrum.

Sr. Java Full Stack Developer

Humana, Texas May 2022 – Jan 2024

Healthcare Claims Processing & Member Portal:

I am responsible for development of a modernized claims processing system and member self-service portal to improve efficiency, compliance, and user experience for millions of Humana members. Designed and implemented Spring Boot microservices integrated with Angular 13+ front end for responsive, accessible, and HIPAA-compliant healthcare applications. Leveraged Azure services (Azure VMs, Azure Blob Storage, Azure Database for PostgreSQL, Azure Monitor, Azure Service Bus) for scalable, cloud-native deployments. Integrated Apache Kafka for real-time event streaming between eligibility, claims, and payment services, reducing processing latency by 35%. Developed RESTful APIs for integration with third-party healthcare data providers and internal enterprise systems. Automated build and deployment pipelines using Jenkins, Maven, SonarQube, and Docker, ensuring continuous delivery and zero-downtime releases. Applied NgRx state management, lazy loading, and reusable Angular components to improve maintainability and performance.

Responsibilities:

Engineered and integrated RESTful APIs using Spring Boot and JAX-RS for insurance claims processing, eligibility checks, and member services, enabling secure, low-latency communication with Angular front-end modules.

Implemented Spring Batch jobs to process millions of insurance claim records with parallel processing, transaction management, and retry mechanisms, ensuring high throughput and fault tolerance.

Integrated Apache Kafka with Spring Boot microservices to support asynchronous, real-time event streaming between claims adjudication, payment, and eligibility services, reducing processing delays.

Designed and optimized PostgreSQL queries, indexes, and stored procedures to improve claims data retrieval performance and reduce SLA response times.

Documented APIs with Swagger/OpenAPI for standardized integration across insurance backend systems and Angular UI components.

Deployed and managed cloud-native microservices on AWS, leveraging EC2, ECS (Fargate), EKS (Kubernetes), S3, RDS (PostgreSQL), CloudWatch, and SQS/SNS to ensure high availability, fault tolerance, and scalability.

Implemented OAuth2 and JWT-based authentication with RBAC for securing sensitive claims, eligibility, and member data, ensuring HIPAA compliance and preventing unauthorized access.

Developed Angular 13+ UI components and feature modules using TypeScript, RxJS, NgRx, and SCSS, enhancing responsiveness and accessibility of insurance member portals.

Built Angular reactive forms with custom validations to support claims submission, enrollment, and benefits verification workflows.

Orchestrated containerized Spring Boot microservices using Kubernetes on Amazon EKS, enabling auto-scaling, rolling updates, and self-healing deployments for critical insurance workflows.

Integrated Angular services with secured REST APIs for real-time claims tracking, benefits verification, and member profile management.

Applied lazy loading and reusable Angular components to improve portal performance and scalability.

Developed Cypress E2E automation test suites for insurance workflows and integrated them with Jenkins CI/CD pipelines, reducing manual QA time and improving release confidence.

Environment: Java 8/11/17, Spring Boot, Spring MVC, Spring Batch, Spring Security, JAX-RS, RESTful APIs, Node.js, Express.js, MongoDB, SQL Server, Elastic Search, Apache Kafka, Angular 11/13/15, React.js, Express.js, NgRx, HTML5, CSS3, JavaScript, Bootstrap, Type Script, SASS, SCSS, Webpack, NPM, Grunt, Swagger/OpenAPI, AWS (EC2, S3, Lambda, ECS, Elastic Beanstalk, Amazon Kinesis and CloudWatch), Docker, Kubernetes, Microservices Architecture, Git, Agile/Scrum, Bitbucket and Jira.

Java Full Stack Developer

HSBC, New York, Nov 2020 – Apr 2022

Responsibilities:

Designed and implemented Spring Boot and Spring MVC microservices architecture for core banking modules, deployed on AWS EC2 and containerized with Docker for portability and scalability.

Developed and consumed RESTful APIs in Spring Boot, returning JSON data for Angular (v6) frontends via HTTPClient and RxJS Observables with OAuth2/JWT authentication and robust error handling.

Built dynamic, reusable Angular (v6) components and singlepage applications using TypeScript, SCSS/SASS, and Bootstrap to deliver responsive, crossbrowser compatible UI experiences.

Optimized Angular performance with lazy loading, AOT compilation, and modular routing to reduce application load times and improve maintainability.

Integrated Apache Kafka for realtime, eventdriven messaging between backend microservices and Angular UIs, enabling instant transaction and alert updates.

Utilized Spring ORM with Hibernate for database operations, transaction management, and caching, connecting with Oracle through optimized SQL/PLSQL scripts.

Implemented Azure Functions for serverless event processing, enabling scalable and cost-effective execution of background tasks.

Utilized Azure Blob Storage for secure document storage and integrated lifecycle management policies to optimize costs.

Automated workflows using Azure SDKs and Event Grid, ensuring seamless event-driven orchestration between microservices.

Integrated with Azure Key Vault for secure secrets management and applied Application Insights for end-to-end monitoring and diagnostics.

Performed unit testing of Angular components using Karma and Jasmine to ensure UI stability and maintain high test coverage.

Documented and validated APIs with Swagger/OpenAPI and Postman to streamline integration with Angular applications.

Managed CI/CD pipelines in Jenkins for automated Angular builds, API integration testing, and zerodowntime deployments.

Environment: Java 8, Spring Boot, Spring MVC, Spring Security, Spring ORM, Hibernate, RESTful APIs, Apache Kafka, Oracle, PL/SQL, DB2, Angular 6, TypeScript, HTML5, CSS3, Bootstrap, JavaScript, SASS, SCSS, AJAX, JSON, Jenkins, Docker, Azure App Services, Azure Functions, Azure Blob Storage, Azure API Management, Swagger, Postman, Log4j, Karma, Jasmine, SOAP UI, Git, Unix Shell Scripting, Agile/Scrum.

Software Developer (Java Full Stack)

Nike, Oregon Contract, Mar 2019 – Oct 2020

Responsibilities:

Developed and deployed Spring Boot-based microservices using Spring MVC, Spring Cloud, and Spring Boot, with containerization through Docker and deployment on AWS EC2 using Jenkins pipelines.

Built Java backend services with multi-threaded components, implementing efficient request handling and asynchronous processing in JavaBeans.

Worked on various modules in Struts-based applications, including action classes, form beans, JSPs, and controller configuration following MVC architecture.

Created dynamic, single-page interfaces using Angular, employing templates, components, routing, directives, and AJAX for responsive user experience.

Designed and developed RESTful APIs using Java Spring Boot for business logic and backend communication.

Implemented database connectivity using JDBC, integrating with Oracle 11g and PostgreSQL RDS for data persistence and transaction management.

Utilized PL/SQL for stored procedures, triggers, and backend scheduling processes in Oracle.

Built file upload/download modules using Oracle BLOB data types and JDBC APIs.

Created and maintained UNIX shell scripts for automated data processing and scheduled batch jobs.

Used XSLT, STAX XML API, and XML transformations to generate and consume structured data within web services.

Installed and configured IBM WebSphere Application Server and HTTP web server for both development and production environments.

Integrated WebSphere MQ and Message Broker for enterprise-level message routing, transformation, and data migration.

Developed backend services for parsing, validating, and storing large datasets in PostgreSQL using AWS Lambda functions.

Built dynamic tables and reports using Display Tag Libraries, improving UI presentation of tabular data.

Employed Maven for build automation, Log4j for logging and exception tracking, and SQL Developer for executing Oracle queries.

Participated in application design, API development, backend performance tuning, and code review processes in Agile sprints.

Environment: ava 8, Spring Boot, Spring MVC, Spring Cloud, Struts, RESTful APIs, Angular, JavaScript, HTML5, CSS3, AJAX, JSP, JDBC, Oracle 11g, PostgreSQL, PL/SQL, XML, XSLT, STAX, IBM WebSphere Application Server, WebSphere MQ, Maven, Jenkins, Docker, AWS EC2, AWS Lambda, Log4j, Display Tag Libraries, Unix Shell Scripting, SQL Developer, Agile/Scrum.

Java Full Stack Developer

Atlantis architects, Bangalore, Karnataka, Sep 2016 – Dec 2018

Responsibilities:

Developed fullstack web applications for Nike’s ecommerce and inventory management systems using Java, Spring Boot, Node.js (Express.js), and React.js, following MVC architecture and J2EE design patterns (DAO, Business Delegate).

Built dynamic, reusable React.js components with Redux, HTML5, CSS3, and JavaScript to deliver responsive, highperformance UIs for product browsing and checkout flows.

Integrated RESTful APIs from Spring Boot and Node.js into React frontends, handling JSON/XML data with robust error handling and asynchronous calls.

Used React functional and container components to implement modular, scalable UI structures, improving code reusability and maintainability.

Deployed Spring Boot microservices in Docker containers hosted on AWS EC2, managing infrastructure with IAM, SNS, ELB, and Route 53 for scalability and reliability.

Implemented JWTbased authentication in Node.js to secure REST API endpoints and enforce rolebased access control.

Created realtime dashboards and analytical reporting features using React.js, AJAX, and Node.js with dynamic graph rendering for operational insights.

Integrated JMS messaging with Spring Boot using ActiveMQ to enable asynchronous communication between services.

Conducted unit testing with JUnit and integration testing of web services and backend modules to ensure quality and stability.

Managed build and deployment automation using Jenkins CI/CD, reducing manual deployment time and accelerating release cycles.

Environment: Java 8, Spring Boot, Spring Security, Jersey (JAX-RS), Node.js, Express.js, React.js, Redux, Angular 5, HTML5, CSS3, JavaScript, XML, JSON, AJAX, JWT, Docker, AWS EC2, IAM, ELB, SNS, Route 53, ActiveMQ, JMS, RESTful APIs, SOAP, SOAP UI, JUnit, Jenkins, Git, MVC Architecture, CI/CD, Unix/Linux.

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