Welcome to VaibhavCodes

Hi there! I’m Vaibhav Jain, and I’m excited to share this new chapter of my journey with you.

Who Am I?

I’m a software engineer with a passion for understanding how technology really works—not just the surface-level APIs and frameworks, but the deep, foundational principles that make everything tick. Whether it’s diving into database internals, exploring distributed systems consensus algorithms, or understanding how compilers optimize code, I believe that knowing the “why” and “how” makes us better engineers.

What Is VaibhavCodes?

This website is my digital home where I share:

  • Deep Technical Explanations: Breaking down complex systems and algorithms into understandable concepts
  • System Design Insights: Real-world lessons from building scalable applications
  • Paper Summaries: Key insights from research papers that every engineer should know
  • Book Reviews: Takeaways from the technical books that have shaped my thinking
  • Course Content: Educational material from DeepTech Visual Academy

Building DeepTech Visual Academy

One of my main focuses is building DeepTech Visual Academy—an initiative to teach engineers the fundamental concepts behind the technologies they use every day. Too often, we work with abstractions without understanding the underlying mechanics. This academy aims to bridge that gap through:

  • Visual Learning: Complex concepts explained through diagrams and interactive examples
  • Practical Applications: Connecting theoretical knowledge to real-world problems
  • Hands-on Projects: Building simplified versions of complex systems to understand their internals

My Philosophy on Learning

I believe that the best way to truly understand technology is to:

  1. Start with fundamentals: Understanding the core principles before diving into specific implementations
  2. Learn by building: Creating simplified versions of complex systems
  3. Teach to understand: Explaining concepts to others deepens your own understanding
  4. Stay curious: Always asking “why does this work?” and “how is this implemented?”

What You Can Expect

In the coming weeks and months, you’ll find content like:

  • “Why Your Database Query is Slow”: Understanding indexes and query optimization
  • “How API Caching Actually Works”: Redis, CDNs, and caching strategies
  • “Git Internals: What Happens When You Commit”: Understanding version control under the hood
  • “Understanding JSON Web Tokens”: How authentication really works

Each piece will focus on practical concepts that you encounter in day-to-day development, explained with the “under the hood” details that make you a more effective engineer.

Join the Journey

Whether you’re a junior developer looking to build deeper knowledge, a senior engineer wanting to strengthen your fundamentals, or simply someone curious about how technology works, I hope you’ll find value in what I share here.

Feel free to connect with me on social media or reach out with questions, suggestions, or topics you’d like me to explore. This is as much a learning journey for me as it is for you.

Let’s explore the fascinating world of technology together—one explanation at a time.


This is just the beginning. Stay tuned for deep dives, insights, and the occasional “aha!” moment that makes all the complexity worth it.