100% Free Courses

Learn Java, React & Cloud

This is my personal blog with various posts, including course-style learning notes and a separate Blog section. Build real-world applications with Java Spring Boot, React and cloud services.

Java & Spring Boot

Enterprise-grade backend development

React & TypeScript

Modern frontend development

Cloud

Scalable cloud infrastructure

Why Choose This Platform?

Designed by a developer, for developers. Learn the skills that matter in today's job market.

Project-Based Learning

Build real applications from scratch. Each course includes complete projects you can add to your portfolio.

Hands-On Coding

Write code from day one along with theory lessons. Every concept is taught through practical examples.

Full-Stack Integration

Learn how frontend and backend work together. Understand the complete development lifecycle.

Cloud Deployment

Deploy your applications to AWS. Learn industry-standard practices for production environments.

Completely Free

No hidden costs, no subscriptions. All content is free forever because education should be accessible.

Modern Tech Stack

Learn the latest versions of Java, React, and AWS services used in today's industry.

My Learning Notes & Courses

Here are some topics I've been learning and documenting. Feel free to follow along – it's all free and open.

Free Notesbeginner

BigDecimal and Floating-Point Precision (must read)

Understand fundamental concepts of java

6 hoursjava, backend
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Free Notesbeginner

Java Spring Notes

Build REST APIs with Java Spring Boot from scratch. Learn dependency injection, JPA, security, and testing.

6 hoursjava, spring-boot
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Free Notesbeginner

Web

Understand concepts of web

6 hoursweb
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Recent Posts

Thoughts, tutorials, and things I'm learning along the way.

how to efficiently log in a vps
Infrastructure8 min read

how to efficiently log in a vps

Don't leave your VPS open to the wild internet. Learn how to secure your server by closing all incoming ports, routing admin access over a private Tailscale network, and using Cloudflare Tunnels.

Azhar
Locking Down a VPS: A Pragmatic Security Setup
Infrastructure8 min read

Locking Down a VPS: A Pragmatic Security Setup

Don't leave your VPS open to the wild internet. Learn how to secure your server by closing all incoming ports, routing admin access over a private Tailscale network, and using Cloudflare Tunnels.

Azhar

Technologies Covered

Learn the technologies used in our courses

Backend

Java
Spring Boot
Hibernate/JPA
REST APIs

Frontend

React
TypeScript
Next.js
Tailwind CSS

Cloud & DevOps

AWS
Docker
Kubernetes
CI/CD

Data & Architecture

SQL/NoSQL
System Design
Microservices
Message Queues

Kambrathi

Passionate about coding, driven to teach.

Full-Stack Developer

With years of experience building enterprise applications, I've worked with Java Spring Boot backends, React frontends, and AWS cloud infrastructure in production environments.

I believe in sharing knowledge freely, which is why all my courses are completely free. My goal is to help you build the skills needed for modern full-stack development.

9+
Years Experience
100%
Free Content

What You'll Learn

  • • Java & Spring Boot
  • • React & TypeScript
  • • AWS & Cloud Deployment
  • • System Design & Architecture
  • • DevOps & CI/CD
  • • Database Design

My Teaching Philosophy

"Learn by building—projects first, theory to support. Forgetting is fine; just keep practicing."

Want to Follow Along?

Sign up to access all my notes and stay updated with new posts.