Available

Kaushalendra Singh

Full Stack Engineer • AI Backend • LLM & Agentic Systems

Building full-stack applications and intelligent AI systems - from scalable backend architectures to RAG pipelines and agentic workflows.

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+91 6398519072

My Stack

TypeScript

JavaScript

Python

C++

React

Next.js

Node.js

Express

FastAPI

MongoDB

PostgreSQL

MySQL

Prisma

Tailwind CSS

Socket.IO

WebSockets

TypeScript

JavaScript

Python

C++

React

Next.js

Node.js

Express

FastAPI

MongoDB

PostgreSQL

MySQL

Prisma

Tailwind CSS

Socket.IO

WebSockets

LangChain

LangGraph

Pinecone

FAISS

LLaMA

Mistral

Hugging Face

Ollama

Mixtral

PyTorch

OpenCV

Docker

AWS

Redis

Vercel

LangChain

LangGraph

Pinecone

FAISS

LLaMA

Mistral

Hugging Face

Ollama

Mixtral

PyTorch

OpenCV

Docker

AWS

Redis

Vercel

Experience

FaxLab AI·Frontend Developer Intern

Feb 2026 – Mar 2026

Developed UI for AI course platform using Next.js, TypeScript, Tailwind; improved engagement for 50K+ learners.
Implemented course catalog, auth flows, dashboards; replaced hardcoded data with Graphy's API, boosting page load by 30% via SSR and code splitting.
Integrated Graphy's REST APIs for real‑time course data and learner progress tracking.

GRS Worker·Full Stack Developer Intern

Sep 2025 – Nov 2025

Architected full-stack app with Next.js 15, Prisma, NextAuth; secured sessions and complex DB relations.
Integrated Twilio SMS, QR codes, Zod validation; cut data errors by 40%.
Built UI with Radix UI, Framer Motion; optimized API with Turbopack and Server Actions.

Open Source Contributions

Joplin·Contributor (Bug fixes & sync engine)

Fixed core issues across desktop, mobile, and sync engine – merged and approved PRs in a 54K+ stars repo.
Collaborated directly with maintainers on a large‑scale real‑world codebase (React, Electron, Node.js).

aden-hive·Contributor (Bug fixes & UI improvements)

Reported and proposed fix for dropdown visibility issue on sign‑up page (Issue #6906) – options were cut off due to improper positioning.
Suggested using a portal, adding max‑height with scroll, and dynamic flip behavior to keep dropdown within viewport.

Featured Projects

8 projects

AI Business Intelligence

Buildify Labs

→

Conversational analytics platform turning natural language into dynamic UI components with real-time rendering.

Next.jsTambo AIZustandTypeScript+1

Modern Social Media Platform

Postly

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Full-stack social media application with authentication, posting, media uploads, and real-time interactions.

Next.jsClerkMongoDBTypeScript+1

Smart Attendance Management System

MyAttendance

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Progressive Web App for attendance tracking used by 1300+ active users to maintain 75% attendance criteria.

Next.jsMongoDBPWATypeScript+1

Worker Management System

GRS Worker Business

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Enterprise platform for managing worker information, attendance, payroll with Twilio SMS and QR codes.

Next.js 15PrismaTwilioNextAuth+2

AI Object Detection for Space Operations

CosmoDetect

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Custom YOLOv11 model for space object detection with deployed inference API.

PythonYOLOv11OpenCVFastAPI+1

AI-Powered Twitter Automation

Twitter AI Bot

→

Automated Twitter bot with AI-generated content and intelligent scheduling capabilities.

PythonAI/MLTwitter APIOpenAI+1

Context-Aware Backend Intelligence System

AI Context Engine

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RAG-based system that retrieves relevant project context and generates structured technical insights using LLMs.

PythonLangChainHuggingFacePinecone+2

Real-Time Chat Application

Cokkie Chat

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MERN stack chat application with Socket.IO for instant messaging. 150+ active users with 80+ Lighthouse score.

MERNSocket.IOReal-timeJWT+1

Building From Zero

I build from zero. Whether it's AI applications, full-stack platforms, or real-time systems, I work across the entire development lifecycle. From computer vision models to production deployment, I focus on creating functional, user-focused applications that solve real problems.

Education

Harcourt Butler Technical University

Bachelor of Technology • 2023 – 2027

Relevant: DSA, OS, LLD, DBMS, Web Dev

Technical Skills

Languages

JavaScript/TypeScriptPythonCC++SQL

Frontend

Next.jsReactTailwind CSSShadCN UIRadix UIFramer MotionHTML5CSS3

Backend

Node.jsExpress.jsFastAPIREST APIsGraphQLPrismaMongooseNextAuthZodSocket.IOWebSocketsAuthentication (JWT, OAuth)API Design

AI / Agentic Systems

LangChainLangGraphRAG (Retrieval Augmented Generation)Vector Databases (Pinecone, FAISS)EmbeddingsPrompt EngineeringAgents (ReAct, Plan & Execute)Tool CallingHugging Face (Transformers, Pipelines)Open Source LLMs (LLaMA, Mistral, Mixtral)Model Serving (Ollama, HF Inference API)PyTorchOpenCVYOLOGemini API / OpenAI API

Database

MongoDBMySQLPostgreSQLRedis (Caching)

DevOps & Cloud

DockerAWS (EC2, S3)VercelRenderCI/CD PipelinesNginx (Basics)Linux

Core Concepts

Data Structures & AlgorithmsOOPSOLID PrinciplesSystem Design (LLD, HLD)Concurrency & Async ProgrammingDesign PatternsType Safety

Currently Exploring

Agentic AI Systems

Designing autonomous agents using LangGraph with planning, tool calling, and multi-step reasoning

RAG & Retrieval Systems

Building pipelines with embeddings, vector databases, and semantic search for context-aware AI

LLM Pipelines

Developing structured workflows for transforming natural language into actionable outputs and APIs

Scalable Backend Architecture

Designing modular backend systems with async processing, caching, and high concurrency handling

AI + Backend Integration

Combining LLMs with production systems using FastAPI, Node.js, and real-time APIs

Real-time & Event-driven Systems

Building low-latency systems using WebSockets and event-driven architectures