Hi, I'm Rajapriya Maduraimuthu

Senior Java Backend Developer

Transitioning into AI-Powered Application Development

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About Me

I'm a Senior Java Backend Developer with 6 years of experience specializing in Java, Spring Boot, Microservices, REST APIs, AWS, Docker, and Kubernetes.

Currently, I'm passionate about transitioning into AI-powered application development, with hands-on experience in Generative AI, RAG, LangChain, OpenAI APIs, Claude APIs, Vector Databases, and n8n automation workflows.

My expertise lies in building scalable enterprise applications, optimizing backend performance, and exploring the intersection of traditional backend development with cutting-edge AI technologies.

6+

Years Experience

10+

Enterprise Modules

25%

Performance Boost

Skills & Expertise

Backend Development

  • Java, Spring Boot, Spring MVC
  • Microservices Architecture
  • RESTful APIs, GraphQL
  • Hibernate, JPA

Cloud & DevOps

  • AWS (EC2, S3, RDS, Lambda)
  • Docker, Kubernetes
  • CI/CD (Jenkins, GitHub Actions)

AI & Automation

  • LangChain, OpenAI API, Claude API
  • RAG (Retrieval Augmented Generation)
  • Vector Databases (Pinecone, ChromaDB)
  • n8n Workflows, Automation

Databases

  • PostgreSQL, MySQL, MongoDB
  • Redis (Caching)
  • Query Optimization
  • Database Design

Tools & Methodologies

  • Git, GitHub, GitLab
  • Agile, Scrum, JIRA
  • Unit Testing (JUnit, Mockito)
  • IntelliJ IDEA, VS Code

Frontend Basics

  • HTML5, CSS3, JavaScript
  • React.js (Basic)
  • REST API Integration

Work Experience

Oct 2023 - Present

Senior Associate Engineering

vThink Global Technologies Pvt Ltd

  • Developed scalable Java Spring Boot microservices and enterprise applications
  • Built REST APIs and automation workflows using n8n
  • Worked on Docker and Kubernetes deployment environments
  • Optimized SQL queries for high-volume transactions
  • Improved API performance and reduced manual workflow effort
  • Explored OpenAI and Claude APIs for automation and developer productivity use cases
Apr 2023 - Aug 2023

Senior Developer

Newt Global

  • Developed scalable microservices using Java and Spring Boot
  • Integrated enterprise applications using REST APIs
  • Resolved backend performance and production issues
  • Improved service throughput by ~25% through API optimization
Aug 2019 - Mar 2023

Associate Developer

GIERP Solutions

  • Developed ERP modules for inventory, finance, and sales management
  • Built REST APIs and handled database migration activities
  • Implemented PDF/CSV export automation and email scheduling
  • Delivered 10+ enterprise modules end-to-end

Certifications & Credentials

LangChain Academy Completed

Introduction to LangChain for Python

Mastered LangChain framework fundamentals including chains, agents, memory, and retrieval for building production-ready LLM applications

LangChain Python LLMs
Anthropic Completed

AI Fluency: Framework & Foundations

Deep understanding of AI/ML principles, Claude API integration, prompt engineering, and responsible AI development practices

Claude API AI/ML Prompt Engineering
IBM In Progress

GenAI for Java & Spring Developers

Specialization in integrating generative AI capabilities into Java enterprise applications using Spring Boot, LangChain4j, and AI services

Java Spring Boot GenAI LangChain4j

Education

Bachelor of Engineering in Computer Science

Anna University, Chennai

2008 – 2012

Featured Projects

Whitecup Solutions – BI Application

Dec 2024 – Present

Developed backend services using Spring Boot for business intelligence and reporting. Contributed to Report, Dashboard, Admin, and Hypercube modules. Deployed applications using Docker and Kubernetes.

Java Spring Boot PostgreSQL React JS JSP Docker Kubernetes

Synergy Housing

Oct 2023 – Nov 2024

Developed backend services using Node.js for booking and traveler management. Designed APIs to support client portal and sourcing modules. Integrated booking management and traveler management systems.

Node.js Express.js MySQL REST APIs Docker Postman

Automation Workflow Engine

Created a custom automation platform using n8n and Python. Integrated with 15+ third-party APIs, automating 50+ business processes and saving 20+ hours weekly.

n8n Python Claude API AWS Lambda

EFMFM – Cab Booking Application

Apr 2023 – Aug 2023

Developed backend services using Spring Boot for core application functionalities. Worked on Booking, Report Generation, Dashboard, and Admin Panel modules. Ensured secure and scalable deployment.

Java Spring Boot Microservices MySQL REST APIs Docker

VPharma

Feb 2022 – Mar 2023

Developed profit and loss reporting functionalities. Debugged and resolved database synchronization and API issues. Led successful migration and enhancement of financial data.

Java Spring Boot MySQL REST APIs Hibernate Maven

Flair Bots

Aug 2019 – Feb 2022

Implemented email notifications, PDF generation, and CSV export functionalities. Enhanced stakeholder management and service request modules for enterprise automation.

Java Spring Boot MySQL REST APIs Jasper Reports Email Services

Get In Touch

Let's Connect

I'm always open to discussing new opportunities, AI projects, or collaborations in backend development and AI-powered applications.

Location

Chennai, Tamil Nadu

Open to Remote & Hybrid Opportunities

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