Nitish Chauhan

Full-stack developer

Noida, Uttar Pradesh, India 0+ yrs exp 81 · Excellent

About

Full-stack developer specializing in AI-integrated web applications, with experience building RAG pipelines, LLM integrations, and scalable backend systems using React.js, Node.js, FastAPI, and LangChain across two internships and multiple AI projects. Seeking SDE / AI Engineer roles.

Skills & Expertise (53)

Typescript Intermediate

6.8/10

0.5

Years Exp

React.js Intermediate

6.8/10

0.5

Years Exp

Python Intermediate

5.8/10

0.5

Years Exp

Node.js Intermediate

5.8/10

0.5

Years Exp

Rest API Intermediate

5.8/10

0.5

Years Exp

JWT Intermediate

5.8/10

0.5

Years Exp

MongoDb Intermediate

5.8/10

0.5

Years Exp

HuggingFace Transformers Intermediate

5.5/10

0.5

Years Exp

LangChain Intermediate

5.5/10

0.5

Years Exp

AWS Intermediate

5.5/10

0.5

Years Exp

FastAPI Intermediate

5.5/10

0.5

Years Exp

Nginx Git ELK Stack VS Code Docker Postman Redis S3 Vercel Render Visual Studio Axios TanStack Query Zustand Socket.IO Mongoose NextAuth Resend Stripe BCrypt C++ TailwindCSS JavaScript HTML CSS RAG Pipelines FAISS Pinecone OpenAI API Prompt Engineering REDUX Next.js IAM Responsive UI Design Express.js GraphQL OAuth2 Postgresql Firebase Prisma ORM Drizzle ORM EC2

Work Experience

Software Developer Intern

Velocity Software Solutions Pvt. Ltd.

Apr 2026 - Jun 2026

Built the complete New Product workflow for an enterprise eCommerce platform (UKSoccerShop) using React.js and TypeScript, cutting manual product-entry time by an estimated 30%; optimized OpenCart SQL queries to improve page-load performance on high-traffic listing pages. Architected a role-based procurement platform (Admin/Vendor access control) supporting the full end-to-end RFP lifecycle across 14 client routes, covering RFP creation, publishing, vendor quote submission, comparison, and closure. Implemented JWT-based authentication and role-based authorization for vendor onboarding, approval, and category management; integrated 12+ REST APIs using Axios and TanStack Query with mutation-driven cache invalidation and error handling. Built reusable, sortable, paginated data tables for vendors, categories, RFPs, and quotes; managed application state with Zustand and automatic Bearer-token injection for secure API communication.

Backend Developer Intern

MetaSquare Technologies Pvt. Ltd.

Jun 2025 - Aug 2025

Designed secure authentication flows (JWT + OAuth2) with role-based access control supporting multiple user permission tiers. Built a Retrieval-Augmented Generation (RAG) pipeline using LangChain and a FAISS/Pinecone vector database with HuggingFace models for semantic search and automated fact-checking. Developed scalable REST APIs with FastAPI and MongoDB for a browser-extension-based application, handling authenticated requests with full token lifecycle management.