Skip to content

DEV Community

Rahul Kumar Barnwal

Full-stack developer | Passionate about Problem Solving, Node.js, React, and Next.js | Tech mentor @ Polaris | Open Source Contributor | Sharing insights on coding, SaaS, and project building 🚀

Bangalore, Karnataka Joined on Apr 24, 2024 https://www.polywork.com/rahulkumar_barnw

Education

B.Tech in Electronics and Communication Engineering | Vinoba Bhave University | Graduated Dec 2020

Pronouns

He/Him

Work

Senior Backend Developer | Tech Mentor @ Polaris | Open Source Contributor

JavaScripters

rahulgithub-web

Proficient in Node.js, React, Next.js, MongoDB, and TypeScript. Skilled in full-stack development, microservices, and dynamic role-based systems.

Exploring advanced Next.js concepts, Google Generative AI, and refining UI design with Tailwind CSS and Shadcn UI. Constantly leveling up my web-scraping skills with Puppeteer.

Building a modern web scraper for Airbnb resort data and enhancing the MediQuery UI to improve user experience.

Open to collaborations on SaaS platforms, UI/UX improvements, and backend architecture. Happy to discuss web development, open source, and career guidance!

37 posts published

38 comments written

18 tags followed

Pinned

Rahul Kumar Barnwal

Jan 2

My Journey Through 2024 and Bold Predictions for 2025 🌟🔮

#devchallenge #newyearchallenge #techtrends #2025goals

3 min read

Rahul Kumar Barnwal

Jan 3

LeetCode Challenge: 209. Minimum Size Subarray Sum - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

3 min read

Want to connect with Rahul Kumar Barnwal?

Create an account to connect with Rahul Kumar Barnwal. You can also sign in below to proceed if you already have an account.

Already have an account? Sign in

Rahul Kumar Barnwal

Jan 2

LeetCode Challenge: 15. 3Sum - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

4 min read

Rahul Kumar Barnwal

Dec 31 '24

LeetCode Challenge: 11. 📦 Container With Most Water - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

3 min read

Rahul Kumar Barnwal

Dec 30 '24

LeetCode Challenge: 167. Two Sum II - Input Array Is Sorted - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 29 '24

LeetCode Challenge: 392. Is Subsequence - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

3 min read

Rahul Kumar Barnwal

Dec 28 '24

🧩 LeetCode Challenge: Remove Element | Top Interview Questions [Java Solution]

#java #leetcode #interview #programming

3 min read

Rahul Kumar Barnwal

Dec 28 '24

LeetCode Challenge: 125. Valid Palindrome - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 27 '24

LeetCode Challenge 68: Text Justification - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

3 min read

Rahul Kumar Barnwal

Dec 26 '24

🧩 LeetCode Challenge: Merge Sorted Array | Top Interview Questions [Java Solution]

#java #leetcode #interview #programming

3 min read

Rahul Kumar Barnwal

Dec 26 '24

LeetCode Challenge: 28. Find the Index of the First Occurrence in a String - JavaScript Solution 🚀

3 min read

Rahul Kumar Barnwal

Dec 25 '24

LeetCode Challenge: 6. Zigzag Conversion - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 24 '24

LeetCode Challenge: 151. Reverse Words in a String - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

3 min read

Rahul Kumar Barnwal

Dec 23 '24

LeetCode Challenge: 14. Longest Common Prefix - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 22 '24

LeetCode Challenge: 58. Length of Last Word - JavaScript Solution🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 21 '24

LeetCode Challenge: 12. Integer to Roman - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 20 '24

LeetCode Challenge: 13. Roman to Integer - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 19 '24

LeetCode Challenge: 42. Trapping Rain Water - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 18 '24

LeetCode Challenge: 135. Candy - JavaScript Solution 🍬

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 17 '24

LeetCode Challenge: 134. Gas Station - JavaScript Solution 🚀

#javascript #programming #interview #leetcode

2 min read

Rahul Kumar Barnwal

Dec 16 '24

LeetCode Challenge: 238. Product of Array Except Self - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 15 '24

LeetCode Challenge: 380. Insert Delete GetRandom O(1) - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

3 min read

Rahul Kumar Barnwal

Dec 14 '24

LeetCode Challenge: 274. H-Index - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 13 '24

LeetCode Challenge: 45. Jump Game II - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 12 '24

LeetCode Challenge: 55. Jump Game - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 11 '24

LeetCode Challenge: 122. Best Time to Buy and Sell Stock II - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 10 '24

LeetCode Challenge: 121. Best Time to Buy and Sell Stock - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 9 '24

LeetCode Challenge: 189. Rotate Array - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 8 '24

LeetCode Challenge: 169. Majority Element - JavaScript Solution 🚀

#javascript #leetcode #interview #programming

2 min read

Rahul Kumar Barnwal

Dec 7 '24

LeetCode Challenge: 80. Remove Duplicates from Sorted Array II - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 6 '24

LeetCode Challenge: 26. Remove Duplicates from Sorted Array - JavaScript Solution 🚀

#javascript #programming #interview #leetcode

2 min read

Rahul Kumar Barnwal

Dec 5 '24

LeetCode Challenge: 27. Remove Element - JavaScript Solution 🚀

#javascript #programming #leetcode #interview

2 min read

Rahul Kumar Barnwal

Dec 4 '24

LeetCode Challenge: 88. Merge Sorted Array - JavaScript Solution 🚀

#javascript #leetcode #interview #programming

3 min read

Rahul Kumar Barnwal

Oct 24 '24

🚀 Introducing Claude 3.5 Sonnet & Haiku: The AI Revolution is Here! 💻✨

#ai #api #programming

3 min read

Rahul Kumar Barnwal

Oct 8 '24

🚀 My 2024 Hacktoberfest Journey: A Contributor's Reflection 🌍💻

#devchallenge #hacktoberfestchallenge #hacktoberfest #opensource

3 min read

Rahul Kumar Barnwal

Apr 24 '24

Earth Day Frontend Challenge

#devchallenge #frontendchallenge #css #javascript

7 min read

loading...