Java Developer Node Js

Vyshnavi Nagulapalli

Richardson, TX • +1-940-***-**** • *******************@*******.*** LinkedIn

SUMMARY

Java Developer with 4+ years of experience building enterprise-grade applications, microservices, and integration solutions across banking, insurance, and marketing technology domains. Proven expertise in Java (J2EE/Java 11/8), Spring Boot, Node.js, REST/SOAP APIs, and middleware integration platforms like Oracle SOA, OSB, and OIC. Skilled in CI/CD pipelines, cloud deployments (AWS), and container orchestration (Docker, Kubernetes). Adept at optimizing SQL/NoSQL databases, integrating message streaming with Kafka, and ensuring high availability in production systems. Strong collaborator in agile environments, delivering solutions that improve performance, scalability, and system resilience. SKILLS & OTHER

Backend & Middleware Technologies: Java (J2EE, Java 8/11), Spring Boot, Spring Security, Hibernate, Node.js, Express.js, Oracle SOA Suite, OSB, Oracle Integration Cloud (OIC), Microservices Architecture, MERN Stack (Backend-focused) JavaScript Frameworks & Libraries: Angular (RxJS), React.js (Context API), jQuery Frontend & UI Technologies: HTML5, CSS3, Bootstrap, Material UI (for admin tools) Databases: PostgreSQL, MySQL, MongoDB, OracleDB, SQL Server Messaging & Streaming: Apache Kafka, JMS

Web Services & APIs: RESTful APIs, SOAP, Swagger/OpenAPI, Postman, JSON, XML Cloud Platforms & DevOps Tools: AWS (EC2, S3, Lambda, CloudWatch), Docker, Kubernetes, Jenkins, GitHub Actions, Bitbucket, Maven Authentication & Security: JWT, OAuth 2.0, RBAC, Middleware throttling Application Servers & Tools: Apache Tomcat, IBM WebSphere, Oracle WebLogic, Linux, Splunk, Log4j, ELK Stack Development Practices: Agile/Scrum, CI/CD, Test-Driven Development (TDD), Unit & Integration Testing (JUnit, Mockito, Testcontainers) PROFESSIONAL EXPERIENCE

Epsilon Jul 2024 – Present

Web Developer Intern TX, USA

Developed backend REST APIs in Java (Spring Boot) and Node.js (Express.js) to process marketing automation platform data, enabling secure handling of customer and campaign information for over 50 enterprise clients.

Engineered microservices integrated with MongoDB for high-volume analytics, applying custom indexing to handle 1M+ records with improved query execution times in production environments.

Implemented backend-driven React.js modules for campaign metric reporting, integrating role-based API access control via Spring Security (JWT).

Deployed Java and Node.js services to AWS EC2 using Docker, orchestrated with Kubernetes to ensure scalable performance during campaign launches with 20K+ concurrent sessions.

Automated deployments with Jenkins, adding gated approvals and environment-based promotion workflows for production readiness.

Authored Swagger/OpenAPI documentation for all backend services and performed Postman contract testing to validate API reliability.

Tuned PostgreSQL queries and stored procedures to optimize backend aggregation processes for campaign reports, reducing generation time from minutes to seconds.

Capgemini Oct 2020 – Jun 2023

Java Application Consultant India

Designed backend integration services using Java (Spring Boot), Oracle SOA, OSB, and OIC, connecting 15+ enterprise systems including Oracle Financials Cloud and on-prem ERP.

Built REST/SOAP APIs for insurance and claims workflows, delivering high-availability services on Oracle WebLogic Server for 1M+ monthly API calls.

Integrated Apache Kafka for event streaming, enabling asynchronous processing across services and handling 10K+ daily events.

Developed and optimized Oracle PL/SQL procedures, functions, and triggers to improve backend data retrieval and reporting speed.

Implemented API security using OAuth 2.0 and JWT, safeguarding access to sensitive financial data in compliance with internal security standards.

Managed deployments via Jenkins and Docker, ensuring stable environment migrations across DEV, SIT, and UAT.

Led code reviews, mentored 5 junior developers, and collaborated with cross-functional teams in agile delivery cycles. Adani Jan 2020 – Jun 2020

Java Developer Intern India

Developed backend Spring Boot microservices for inventory management, integrated with MySQL to support 2K+ daily transactions.

Built REST APIs for multi-platform front-end clients, maintaining data consistency and relational integrity across modules.

Assisted in deployment on Apache Tomcat and basic cloud hosting setup using AWS EC2.

Optimized SQL queries for reporting modules, improving backend processing times in live environments.

Designed role-based access controls using Spring Security to secure internal web applications.

Participated in Jenkins CI/CD pipeline setup to automate builds and deployments for testing environments.

Supported QA teams with API testing in Postman and authored JUnit unit tests for backend validation. PROJECTS

Secure E-Commerce API Platform

Java 11, Spring Boot, PostgreSQL, JWT, AWS EC2, Docker, Swagger

Developed Spring Boot microservices with JWT-based authentication and payment gateway integration, enabling secure order processing and role-based access.

Deployed services to AWS EC2 in Docker containers, integrating Swagger/OpenAPI for API documentation and Postman for validation. Healthcare AI Chat Service

Java, Spring Boot, MongoDB, Python, OpenAI API, Docker, AWS Kubernetes

Built REST APIs in Spring Boot to manage patient sessions in MongoDB and integrate Python microservices for OpenAI API-driven medical Q&A.

Secured APIs with Spring Security, deployed containerized services to AWS Kubernetes, and implemented validation for HIPAA compliance. EDUCATION

University Of North Texas Aug 2023– May 2025

Masters in Computer Science GPA- 3.4

Majors: Software Engineering, Functional Database Systems, Big data Analytics, Fundamentals of Artificial Intelligence

CMR college of Engineering and Technology Aug 2016 – Sep 2020 Bachelors of Technology in Computer Science, GPA- 8.8

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