Medium

Arvind Kumar

he/him

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Arvind Kumar

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May 12

20 Concepts that Every AI Engineer Should Learn

From Prompt Engineering to Multi-Agent Systems

20 Concepts that Every AI Engineer Should Learn

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Arvind Kumar

·

Feb 6

The Ultimate Core Java Interview Question Bank (170+ Questions)

Modern Java (8–25) interview questions with detailed explanations, diagrams & follow-ups in the ebook

The Ultimate Core Java Interview Question Bank (170+ Questions)

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Arvind Kumar

·

Nov 15, 2025

Ace Your Spring Boot Interview: 450+ Questions with Detailed Answers

Comprehensive Guide Covering Core Spring Boot, Microservices, Spring Cloud, Spring AI, Reactive Programming, and Production Best Practices…

Ace Your Spring Boot Interview: 450+ Questions with Detailed Answers

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Arvind Kumar

·

Oct 30, 2025

Building a Ticketing System: Concurrency, Locks, and Race Conditions

What happens when 100,000 fans try to book the same concert ticket at exactly 10:00 AM? Let’s design a ticketing system that prevents…

Building a Ticketing System: Concurrency, Locks, and Race Conditions

Arvind Kumar

·

1d ago

Inside Google’s SynthID: Reverse Engineering Google’s SynthID(Part 3)

If you’ve followed the story so far, Google’s decision starts to make sense.

Inside Google’s SynthID: Reverse Engineering Google’s SynthID(Part 3)

Arvind Kumar

·

2d ago

Inside Google’s SynthID: Why AI Detection Is an Arms Race Nobody Can Win(Part 2)

When ChatGPT became popular, a new industry emerged almost overnight.

Inside Google’s SynthID: Why AI Detection Is an Arms Race Nobody Can Win(Part 2)

Arvind Kumar

·

3d ago

Inside Google’s SynthID — Reverse Engineering the Invisible Trust Layer of the AI Internet (Part 1)

Before understanding Google’s invisible watermarking technology, we first need to understand why the Internet’s trust model is quietly…

Inside Google’s SynthID — Reverse Engineering the Invisible Trust Layer of the AI Internet (Part 1)

Arvind Kumar

·

4d ago

The Essential Docker Commands I Needed to Debug a Spring Boot Microservices Project

Building a Dockerized Spring Boot application is usually straightforward — until something doesn’t work.

The Essential Docker Commands I Needed to Debug a Spring Boot Microservices Project

Arvind Kumar

·

5d ago

StampedLock in Java: The Concurrency Primitive Most Developers Never Explore Deeply

When Java developers talk about concurrency, the discussion usually revolves around:

StampedLock in Java: The Concurrency Primitive Most Developers Never Explore Deeply

Arvind Kumar

·

6d ago

The Backend Engineer Roadmap That Builds a Real 2–3 Years Experience Story

Every Interview Asks for Experience. But Most Developers Never Get Exposure to Everything.

The Backend Engineer Roadmap That Builds a Real 2–3 Years Experience Story

Arvind Kumar

Arvind Kumar

he/him

Staff Engineer | System Design, Microservices, Java, SpringBoot, Kafka, DBs, AWS, GenAI | Teaching concepts via stories & characters | https://codefarm.in/

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