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kalidas120799/README.md

Hi, I'm Kalidas 👋

Senior Software Engineer | Full-Stack Developer

I'm a Senior Software Engineer with 6 years of experience building scalable, production-grade full-stack applications and REST APIs.

I specialize in React.js, Next.js, Node.js, TypeScript, MongoDB, Redis, Elasticsearch, and AWS, with a strong focus on performance optimization, scalable architecture, testing, and reliable software delivery.


🚀 About Me

  • 💻 6 years of experience in full-stack software development
  • ⚛️ Strong experience with React.js, Next.js, TypeScript
  • 🟢 Backend development using Node.js & Express.js
  • ☁️ Experience with AWS Lambda & CloudWatch
  • ⚡ Improved API response times by 40% using Redis caching
  • 🔎 Improved historical data retrieval by 60% using Elasticsearch
  • 🧪 Experienced with Jest & Playwright
  • 🔄 CI/CD experience with Jenkins
  • 🐳 Experience containerizing applications with Docker
  • 📊 Worked with high-volume enterprise applications and real-time tracking systems
  • 🤝 Comfortable working in Agile teams and collaborating with developers, QA, BAs, and business stakeholders

⚡ What I Do

Frontend       React · Next.js · TypeScript · SASS · MUI
Backend        Node.js · Express · REST APIs · Microservices
Data           MongoDB · MySQL · Redis · Elasticsearch
Cloud          AWS Lambda · CloudWatch
Testing        Jest · Playwright
DevOps         Docker · Jenkins · GitHub
Architecture   Caching · Real-time systems · Serverless

📈 Impact

6+ years Software Engineering
40% faster API response time with Redis caching
60% faster Historical data retrieval with Elasticsearch
25% faster Release cycle through development improvements
50+ Enterprise customers supported
1,000+ Registered users supported

🧩 What I've Built

🏢 Enterprise Insurance Platform

React · Next.js · TypeScript · Node.js · MongoDB · Redis · AWS

  • Insurance billing and invoice processing
  • Policy document retrieval
  • Payment gateway integrations
  • Node.js microservices
  • Redis-based performance optimization
  • AWS Lambda workflows
  • Jest + Playwright testing
  • Jenkins CI/CD

Result: Improved high-frequency API response times by 40%.


🚚 Real-Time Tracking Platform

React · Node.js · Express · RabbitMQ · Elasticsearch · Google Maps

  • Live GPS tracking
  • Vehicle and farm monitoring
  • Geofencing
  • Real-time operational dashboards
  • RabbitMQ-based GPS data processing
  • Elasticsearch for large-scale historical search

Result: Improved historical data retrieval by 60% across millions of GPS records.


🏥 Healthcare & E-Learning Applications

React · Node.js · Express · Socket.IO · JWT

  • Healthcare management
  • Appointment scheduling
  • Real-time video consultation
  • Role-based access control
  • Payment integrations
  • Responsive UI development

Result: Supported applications with 1,000+ registered users.


🧠 Engineering Focus

I'm particularly interested in:

  • ⚡ Performance optimization
  • 🏗️ Scalable application architecture
  • 🔌 REST API & microservice design
  • ☁️ Cloud & serverless architecture
  • 🔎 Search and data optimization
  • 🧪 Automated testing
  • 🔐 Application security
  • 🔄 CI/CD & production reliability

📜 Certifications

  • Claude Code in Action — Anthropic
  • Frameworks & Foundations — Anthropic
  • GitHub Copilot Fundamentals — Microsoft
  • Microsoft 365 Copilot — Microsoft
  • Cloud Computing on AWS — Udemy

🤝 Let's Connect

LinkedIn · GitHub · Email


💬 Open to

Senior Software Engineer · Full-Stack Engineer · React Developer · Node.js Developer

⭐ If you find something useful here, feel free to explore my repositories.

Pinned Loading

  1. Javascript Javascript Public

    JavaScript

  2. express-app express-app Public

    JavaScript 2

  3. react-redux react-redux Public

    JavaScript 2

  4. data-structures data-structures Public

    Basic Data Structures

    JavaScript

  5. design-patterns design-patterns Public

    Design Patterns

    JavaScript

  6. express-typescript-app express-typescript-app Public

    TypeScript 2