Gulashan Kumar

@gulshankumar

Senior UI developer

Noida, Uttar Pradesh, IndiaJoined December 2025

About

I'm a Senior Front-End Engineer with 12+ years of experience in JavaScript-based technologies, UI architecture, and platform modernization. I have strong expertise in React.js, Next.js, TypeScript, and WordPress headless systems.

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Gulashan Kumar's blogs

5 Performance Mistakesgulshandev.hashnode.dev7 posts

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Recently published

gulshandev.hashnode.dev

🚀 Frontend Engineering Interviews: Real Questions + Real Answers (2026 Edition)

Frontend interviews are no longer about “Do you know React?”They’re about how you think, debug, optimise, and scale real products. Below is a curated list of REAL interview questions companies are asking along with concise, practical answers 👇 🔹 1...

Jan 256 min read

gulshandev.hashnode.dev

After years of building web applications, I’ve realized something important:

Creating a website is not enough. Making it accessible is what truly matters. Accessibility isn’t a checkbox—it’s an engineering responsibility. Some practical accessibility practices I now prioritize in React projects: 🔹 Use semantic HTML first Pre...

Jan 192 min read

gulshandev.hashnode.dev

🚀 What 12+ years in Frontend Engineering has taught me about React performance

Most React performance issues are not caused by React. They’re caused by how we use it. Here are a few patterns I see repeatedly in production apps 👇 🔹 Overusing useEffectSide effects running on every render = unnecessary re-renders→ Prefer derived...

Jan 141 min read

gulshandev.hashnode.dev

As a UI developer, I’m trained to look for big features.But yesterday, one tiny UI detail stopped me mid-payment.

While paying via Paytm, I noticed a small “+” button on the payment keypad. That’s it. No tooltip. No announcement. No onboarding. Yet it solved a problem I’ve silently lived with for years. Earlier, paying for multiple items meant: Switch to calcula...

Dec 27, 20251 min read

gulshandev.hashnode.dev

SEO in Next.js: Metadata, Open Graph & Social Sharing (Complete Guide)

Search Engine Optimization (SEO) in modern web applications is no longer just about meta tags. With Next.js App Router, SEO has become declarative, dynamic, and extremely powerful — if implemented correctly. In this article, I’ll walk through: How S...

Dec 22, 20253 min read

Gulashan Kumar

About

Available for

Gulashan Kumar's blogs

Recently published

🚀 Frontend Engineering Interviews: Real Questions + Real Answers (2026 Edition)

After years of building web applications, I’ve realized something important:

🚀 What 12+ years in Frontend Engineering has taught me about React performance

As a UI developer, I’m trained to look for big features.But yesterday, one tiny UI detail stopped me mid-payment.

SEO in Next.js: Metadata, Open Graph & Social Sharing (Complete Guide)

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Gulashan Kumar

About

Available for

Gulashan Kumar's blogs

Recently published

🚀 Frontend Engineering Interviews: Real Questions + Real Answers (2026 Edition)

After years of building web applications, I’ve realized something important:

🚀 What 12+ years in Frontend Engineering has taught me about React performance

As a UI developer, I’m trained to look for big features.But yesterday, one tiny UI detail stopped me mid-payment.

SEO in Next.js: Metadata, Open Graph & Social Sharing (Complete Guide)