---
title: "Sunil Kumar (@sunilkumar27) | Hashnode"
description: "Sunil Kumar (@sunilkumar27) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@sunilkumar27"
---

@sunilkumar27

# Sunil Kumar

@sunilkumar27 · Joined September 2024

### [Clean Architecture: A Guide to Building Scalable and Maintainable Software](https://cskblogs.hashnode.dev/clean-architecture-a-guide-to-building-scalable-and-maintainable-software?utm_source=hashnode&utm_medium=feed)

Learn Clean Architecture, its key principles, layered structure, and best practices to build scalable, maintainable, and testable software.

5 min read · [cskblogs.hashnode.dev](https://cskblogs.hashnode.dev/clean-architecture-a-guide-to-building-scalable-and-maintainable-software?utm_source=hashnode&utm_medium=feed)

[Feb 13, 2025](https://hashnode.com/posts/clean-architecture-a-guide-to-building-scalable-and-maintainable-software/67ad55ecf3669e99cf3f9816)

### [Mastering REST API Design: Principles for Scalable and Robust Applications](https://cskblogs.hashnode.dev/mastering-rest-api-design-principles-for-scalable-and-robust-applications?utm_source=hashnode&utm_medium=feed)

Learn REST API design principles like statelessness, caching, and scalability to build robust, efficient APIs for modern web applications.

5 min read · [cskblogs.hashnode.dev](https://cskblogs.hashnode.dev/mastering-rest-api-design-principles-for-scalable-and-robust-applications?utm_source=hashnode&utm_medium=feed)

[Nov 27, 2024](https://hashnode.com/posts/mastering-rest-api-design-principles-for-scalable-and-robust-applications/6746e317484477bb0e75f604)

### [The Comprehensive Guide to Developer Experience (DevEx): Why It Matters and the Roles Driving It](https://cskblogs.hashnode.dev/the-comprehensive-guide-to-developer-experience-devex-why-it-matters-and-the-roles-driving-it?utm_source=hashnode&utm_medium=feed)

Discover the importance of Developer Experience (DevEx) and why it's essential for modern tech environments. Learn about key DevEx elements, emerging roles,

7 min read · [cskblogs.hashnode.dev](https://cskblogs.hashnode.dev/the-comprehensive-guide-to-developer-experience-devex-why-it-matters-and-the-roles-driving-it?utm_source=hashnode&utm_medium=feed)

[Nov 10, 2024](https://hashnode.com/posts/the-comprehensive-guide-to-developer-experience-devex-why-it-matters-and-the-roles-driving-it/673070a879b865e9e3e4f2fc)

### [The Power of Selective Ignorance: A Tool for Modern Leaders](https://cskblogs.hashnode.dev/the-power-of-selective-ignorance?utm_source=hashnode&utm_medium=feed)

Discover why selective ignorance is a powerful leadership strategy in today's information-rich world. Learn how top leaders filter distractions, increase fo

6 min read · [cskblogs.hashnode.dev](https://cskblogs.hashnode.dev/the-power-of-selective-ignorance?utm_source=hashnode&utm_medium=feed)

[Nov 7, 2024](https://hashnode.com/posts/the-power-of-selective-ignorance/672d0fdcc9a64ec0e6cde72d)

### [The New AI Business Model: Charging Customers Only When the Tech Works](https://cskblogs.hashnode.dev/the-new-ai-business-model-charging-customers-only-when-the-tech-works?utm_source=hashnode&utm_medium=feed)

Explore the new AI business model where customers are charged only when the technology delivers results, ensuring performance and trust.

4 min read · [cskblogs.hashnode.dev](https://cskblogs.hashnode.dev/the-new-ai-business-model-charging-customers-only-when-the-tech-works?utm_source=hashnode&utm_medium=feed)

[Oct 1, 2024](https://hashnode.com/posts/the-new-ai-business-model-charging-customers-only-when-the-tech-works/66fbbb84331e6072f9ac5aeb)