(GMT+5:30) Bihar Sharif, India

Arpit Kr. Singh

Remote

Full-Stack & GenAI Engineer

Hi, I'm Arpit Kr. Singh, a full-stack & GenAI engineer from 🇮🇳 India.

I build end-to-end products that scale and ship on time. From RAG pipelines to production web platforms, I craft systems that just work.

You can reach me on 𝕏 DMs or Email.

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Tech Stack

Technologies I work with

</>LANGUAGES

TypeScript

JavaScript

Python

C/C++

SQLSQL

🎨FRONTEND

Next.js

React

Tailwind CSS

⚙️BACKEND

Node.js

Express.js

FFastAPI

APIREST APIs

WSWebSockets

MSMicroservices

🗄️DATABASE

PostgreSQL

MongoDB

Redis

SBSupabase

N4Neo4j

QDQdrant

🧠AI / ML

🦜LangChain

LGLangGraph

AIOpenAI API

GGemini

RAGRAG

🚀CLOUD & DEVOPS

AWS

Docker

Git

Linux

Projects

Things I've built

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Pod Gear Platform

Freelance e-commerce and coach booking platform serving 10k–15k users. Built with Next.js, Node.js, MongoDB, Redis, Stripe, and AWS EC2.

Next.jsTypeScriptMongoDBRedisStripeAWS

</>

RepoExplainer

AI-powered codebase assistant. Paste a GitHub repo URL and ask natural-language questions. Uses Gemini to intelligently select relevant files instead of embedding the entire codebase.

Next.jsTypeScriptNode.jsMongoDBGeminiRAG

</>

TubeTalkAI

CLI RAG assistant that lets you chat with YouTube videos. Fetches transcripts, builds a Neo4j knowledge graph and Qdrant vector store, and answers with timestamped responses via Gemini.

PythonNeo4jQdrantRAGGeminiLangChain

</>

Pothole Detection Backend

Microservices backend for an AI-powered pothole detection system. Express API gateway proxies sensor data to a Python FastAPI ML service running a Keras LSTM model, with PostgreSQL/Prisma storage.

Node.jsExpressTypeScriptFastAPIPostgreSQLTensorFlow

GitHub Activity

759 contributions in the last year

@ArpitKrSingh7 on GitHub →

Contributions

759

Current Streak

Longest Streak

13d

Repos · Followers

26 · 12

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Less

LeetCode

Competitive programming stats

@Arpitkrsingh on LeetCode →

Problems Solved

673

Easy / Medium / Hard

384/274/15

Global Ranking

102,969

Contest Rating

1597

Top 24.61%

Recent Blogs

Thoughts & learnings

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Blogs are on the way

I'm writing up some system design and GenAI breakdowns. Check back soon.

START HERE

Let's hop on a quick call and see if we've got the right chemistry.

Want to bounce ideas?

Drop me an email or DM on X and let's explore what's possible.

Looking to build something bigger?

I can connect you with the right team and resources.

In Kancheepuram?

Perfect! Let's grab a coffee and brainstorm in person.

Ready to chat?

Send me an email or reach out on X. I usually respond within a day.

Email Me Message on X

“Turning your vision into digital reality is just one conversation away”