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Manikandan4411/README.md

Hi, I'm Manikandan S 👋

Product Engineer | Java Backend & Full Stack Developer | GenAI Developer

I’m a Product Engineer with 3+ years of professional experience building scalable web applications, backend services, REST APIs, and microservices using Java and Spring Boot.

Currently focused on building practical applications combining Java, Spring Boot, React, Microservices, SQL, and Generative AI.

👨‍💻 About Me

  • 💼 Product Engineer with 3+ years of professional software development experience
  • ☕ Strong focus on Java, Spring Boot, REST APIs and Microservices
  • 🌐 Full-stack development with React, JavaScript and REST APIs
  • 🗄️ Experience with SQL, PostgreSQL and MySQL
  • 📨 Experience with RabbitMQ and asynchronous communication
  • ⚡ Working with Redis, Docker and CI/CD
  • 🤖 Building applications with Generative AI and LLM APIs
  • 🧠 Interested in AI-powered applications, backend engineering and system design
  • 📝 Sharing Java and software engineering knowledge through technical writing

🛠️ Tech Stack

Backend

Java Spring Boot Hibernate

Frontend

React JavaScript HTML5 CSS3

Databases

PostgreSQL MySQL

Messaging & Caching

RabbitMQ Redis

AI / GenAI

Gemini

DevOps & Tools

Docker Git GitHub Maven

🚀 Featured Projects

🤖 AI Resume Analyzer

AI-powered full-stack application that analyzes resumes against job descriptions using Generative AI.

Tech: Java 21 · Spring Boot · React · Vite · REST API · Google Gemini API · PDF Processing

Features include:

  • Resume PDF analysis
  • Job description analysis
  • Resume-job compatibility score
  • Matched skills
  • Missing skills
  • ATS keywords
  • AI-generated improvement suggestions
  • Mock mode for development

👉 View Project

📚 Library Management System

Full-stack library management application using Spring Boot microservices and React.

Tech: Java · Spring Boot · Microservices · React · PostgreSQL · JPA/Hibernate · REST APIs

Demonstrates:

  • Microservice architecture
  • REST API development
  • Database integration
  • React frontend
  • Service separation
  • CRUD operations
  • Backend/frontend integration

👉 View Project

💡 Areas of Interest

Java Backend Development
Spring Boot
Microservices
REST API Development
Full Stack Development
Generative AI
LLM Applications
AI-powered Applications
SQL & Database Design
System Design
Cloud & DevOps

📚 Currently Building & Learning

  • Generative AI applications
  • LLM-powered applications
  • RAG-based applications
  • AI agents
  • Spring Boot microservices
  • System design
  • Cloud-native application development
  • Backend performance and scalability

✍️ Technical Writing

I also write about Java, Spring Boot, backend development, software engineering and Generative AI.

🔗 Hashnode:
https://manikandan4411.hashnode.dev

🤝 Connect With Me

🔗 LinkedIn:
https://www.linkedin.com/in/manikandan4411

🔗 GitHub:
https://github.com/Manikandan4411

📊 GitHub Stats

GitHub Stats

Top Languages

⭐ Feel free to explore my repositories and connect with me.

Pinned Loading

  1. AI-email-generator AI-email-generator Public

    A React + Gemini 3.6 Flash project that generates professional emails with subject and body, includes copy button, tone presets, loading spinner, and history viewer.

    JavaScript

  2. AI-Resume-Analyzer AI-Resume-Analyzer Public

    AI-powered full-stack application that analyzes resumes against job descriptions using Google Gemini API and provides match scores, skills, missing skills, ATS keywords, and improvement suggestions.

    JavaScript

  3. Chinese-match-game Chinese-match-game Public

    A React-based Chinese-English vocabulary matching game with randomized words, interactive matching, score tracking, and pronunciation.

    JavaScript

  4. Library-Management-System Library-Management-System Public

    A full-stack Library Management System built with React.js, Spring Boot Microservices, REST APIs, JPA/Hibernate, and PostgreSQL.

    JavaScript

  5. Manikandan4411 Manikandan4411 Public

    Config files for my GitHub profile.

  6. theory_hub theory_hub Public

    A responsive Theory Hub Learning website built with React and Vite, featuring a structured sidebar navigation, topic-based tutorials, search functionality, and Markdown-rendered content.

    JavaScript