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Gundam Raju S.
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Gundam Raju S.

Senior Java Spring Boot Developer | Microservices | API Expert | Kafka

Spring Boot Specialist | 7+ Years of Experience | Microservices | Event-Driven Architecture I’m a seasoned Java Backend Developer with over 7 years of hands-on experience in designing, developing, and deploying scalable RESTful APIs and microservices using Spring Boot and the Java ecosystem. 🛠️ I’ve architected and delivered robust enterprise applications used in banking, finance, and retail — handling everything from database modeling to CI/CD automation and cloud deployments on AWS and on-prem environments. 🔍 What I bring to the table: 💡 End-to-end API development with Spring Boot, JPA, and Hibernate 🔁 Kafka-based event-driven systems for high-volume processing 🧪 Quality-focused development with 90%+ unit test coverage, SonarQube, and Cypress 🚀 CI/CD pipelines with Jenkins, Docker, and Gradle 🛡️ Secure systems using JWT, OAuth2, and role-based access control ☁️ Experience deploying Microservices on AWS EC2, S3, Lambda, and Docker Compose setups 🧪 My tech solutions have powered: ✔️ Chat-based web platforms using WebSockets and STOMP with real-time messaging ✔️ E-commerce backend APIs including product catalog, cart, and checkout modules ✔️ NetSuite integrations for syncing orders, inventory, and CSV file processing ✔️ Tax calculation integration within e-commerce checkout flows ✔️ Advanced cart and discount logic, including promo codes and gift card redemption ✔️ Swagger/OpenAPI documentation for seamless API consumption ✔️ Multi-locale & translation-ready APIs using Google Cloud Translation API ✔️ Gift card system development: both Customer-to-Customer and Business-to-Customer models ✔️ Robust scheduling features for email delivery and status updates Skills : Java Spring Boot Spring Batch Spring Data JPA REST API Development Apache Kafka Microservices Architecture Event-Driven Architecture AWS (EC2, S3, Lambda) Docker & Docker Compose Jenkins CI/CD OAuth2 & JWT PostgreSQL / MySQL / Oracle MongoDB / DynamoDB JUnit 5 & Mockito SonarQube Swagger & Postman Liquibase / Flyway GitLab / Bitbucket / Git System Design Clean Architecture

🇮🇳Hyderabad, India$18/hr100% JSS4.25 (11)Since Sep 2023

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#184,654 / 412k
🇮🇳Country#23,594 / 45.9k
Revenue, last 30 days
$0
Total earnings
$12k

Billed in all: $12k

World#184,654 / 412k
🇮🇳Country#23,594 / 45.9k
Per project
$825
Projects, last 6 months
0
World#209,850 / 412k
🇮🇳Country#23,217 / 45.9k
Projects in all
14

Across 23 contracts

70% fixed30% hourly
World#168,283 / 412k
🇮🇳Country#23,126 / 45.9k

Earnings, last 30 days

$12kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$11.8k$12.0k$12.2k$12.4kOct 8Oct 23Nov 7

Skills