Freelancers using Python in Kolkata

Freelancers using Python in KolkataFreelancers using Python in Kolkata

Projects People

AI Developer & Agentic AI Engineer

New to Contra

AI Developer & Agentic AI Engineer

Cover image for DocFlow AI – Intelligent Document

DocFlow AI – Intelligent Document Processing Platform DocFlow AI is an enterprise document intelligence platform that transforms unstructured documents into searchable, actionable knowledge. The platform automatically extracts information from PDFs, Word files, invoices, contracts, and reports, builds a searchable knowledge base, and enables users to interact with their documents through an AI assistant using Retrieval-Augmented Generation. It combines OCR, structured extraction, RAG, AI agents, and workflow automation to simplify document-heavy business operations. Features: PDF Processing OCR Pipeline RAG AI Chat with Documents Entity Extraction Document Classification Knowledge Base Citation Generation Role-based Access FastAPI Backend Tech Stack: Python FastAPI LangGraph LangChain ChromaDB PostgreSQL Docker Redis OpenAI OCR

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Cover image for ResearchX – Autonomous Deep Research

ResearchX – Autonomous Deep Research AI Agent ResearchX is a production-ready autonomous research agent that performs end-to-end research with minimal human input. Instead of simply answering questions, the agent plans research tasks, searches multiple trusted sources, evaluates information quality, retrieves supporting evidence, and generates structured reports with citations. Built using a multi-agent architecture, the system combines planning, retrieval, tool calling, memory, and iterative reasoning to handle complex research tasks while reducing hallucinations through grounded retrieval and verification. Features: Autonomous Planning Multi-Agent Workflow Web Search Integration PDF Analysis RAG Pipeline Citation Generation Long-Term Memory Report Generation Source Verification Evaluation Framework Tech Stack: Python • LangGraph • FastAPI • Tavily • ChromaDB • PostgreSQL • Redis • Docker • OpenAI • Claude

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Cover image for Scopio – Multi-Agent AI Sales

Scopio – Multi-Agent AI Sales Automation Platform Scopio is a production-ready multi-agent AI platform designed to automate B2B sales and lead generation. The platform coordinates multiple AI agents to perform end-to-end sales workflows: Discover potential businesses from multiple sources Research company websites and public information Analyze business context using LLMs Generate personalized outreach emails Manage follow-up workflows automatically Maintain conversation history and workflow state I designed the agent architecture using LangGraph, enabling planning, tool calling, memory, and multi-step execution while integrating external APIs and backend services for reliable automation. Key Features Multi-Agent Architecture Autonomous Business Research AI-Powered Personalized Outreach Tool Calling & API Integration Workflow Orchestration Long-Term Memory PostgreSQL & Redis Integration Dockerized Deployment FastAPI Backend Tech Stack Python • LangGraph • LangChain • FastAPI • PostgreSQL • Redis • Docker • OpenAI • MCP • REST APIs

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Cover image for Built a production-ready Agentic AI

Built a production-ready Agentic AI nutrition assistant using LangGraph, LangChain, Hybrid RAG, FastAPI, ChromaDB, and SQLite. Features include: • Human-in-the-loop onboarding • Hybrid Retrieval-Augmented Generation • Long-term user memory • Deterministic nutrition engine • Tool calling and workflow orchestration • Guardrails to prevent hallucinated nutrition values • Automated evaluation pipeline Tech Stack: Python • LangGraph • LangChain • FastAPI • ChromaDB • SQLite • Groq Llama 3 • Streamlit

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Full stack web developer and automation expert.

$5k+: Earned

46x: Hired

5.0: Rating

25: Followers

Expert

Full stack web developer and automation expert.

Real-Time AI Avatar Backend and Frontend integration Development

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Cover image for Audio Processing API Deployment on AWS Lambda

Audio Processing API Deployment on AWS Lambda

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Cover image for Chatterbox TTS: Real-Time Text-to-Speech Service

Chatterbox TTS: Real-Time Text-to-Speech Service

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Cloud & AI Architect & Consultant Driving Digital Innovation

Cloud & AI Architect & Consultant Driving Digital Innovation

Cover image for Over the past year, I've

Over the past year, I've been building cloud-native platforms, AI-powered DevOps automation, and secure AWS architectures for startups and growing businesses. My recent work includes developing AI-assisted DevOps and Security agents using the Claude API, n8n, and AWS to automate incident investigation, CloudWatch log analysis, deployment validation, and security audits. I've also implemented LLMOps observability with Langfuse and OpenTelemetry to monitor AI workflows, prompts, latency, and execution traces. Beyond AI, I've architected scalable AWS solutions for video streaming platforms, designed HIPAA-compliant healthcare infrastructure, modernized eCommerce platforms through BigCommerce migrations, and built CI/CD pipelines with GitHub Actions, Terraform, and Kubernetes. I enjoy solving complex infrastructure problems by combining cloud architecture, automation, observability, and AI to improve reliability, security, and engineering productivity. My focus is always on building production-ready systems that reduce operational overhead while enabling teams to move faster with confidence.

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Cover image for Smoky, freshly baked cookies, and

Smoky, freshly baked cookies, and a whole lot of happiness — the perfect recipe for a great time! 😋🔥

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Cover image for 🔥 BBQ, Cookies & Good

🔥 BBQ, Cookies & Good Vibes! 🍪 Smoky BBQ, freshly baked cookies, and a whole lot of happiness — the perfect recipe for a great time!

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Cover image for 🔥 BBQ, Cookies & Good

🔥 BBQ, Cookies & Good Vibes! 🍪 Smoky BBQ, freshly baked cookies, and a whole lot of happiness — the perfect recipe for a great time!

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Data Science | Mathematics Tutor| AI Automations

Data Science | Mathematics Tutor| AI Automations

Cover image for CineMatch-Engine: A High-Performance Movie Recommendation System

CineMatch-Engine: A High-Performance Movie Recommendation System

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Cover image for Real Estate Price Prediction and Recommendation System

Real Estate Price Prediction and Recommendation System

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Cover image for Time Series Analysis on Chicago Taxi Trips

Time Series Analysis on Chicago Taxi Trips

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Shubham Kumar Singh

Data analyst & Software Developer Engineer

Data analyst & Software Developer Engineer

Cover image for ShubhamKrSingh21/Objectify

ShubhamKrSingh21/Objectify

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Cover image for ShubhamKrSingh21/Buy-Me-a-Cutting-Chai--Decentralised-CrowdFund…

ShubhamKrSingh21/Buy-Me-a-Cutting-Chai--Decentralised-CrowdFund…

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Cover image for Blockchain-based Voting System

Blockchain-based Voting System

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Fullstack Engineer: Turning Ideas into Reality

Fullstack Engineer: Turning Ideas into Reality

Cover image for Noorioo - AI SaaS for Students

Noorioo - AI SaaS for Students

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Cover image for MynaSwap - Ship,Vault & Sell

MynaSwap - Ship,Vault & Sell

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Cover image for Ingenium - Ticketing Made Safe

Ingenium - Ticketing Made Safe

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Maheshtala, India

A dedicated and an aspiring Data Science Engineer.

A dedicated and an aspiring Data Science Engineer.

Cover image for samrat0033/Lung_Cancer_Prediction

samrat0033/Lung_Cancer_Prediction

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Cover image for Real-Time Emotion Detection using CNN

Real-Time Emotion Detection using CNN

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Cover image for E-commerce Website Frontend Development with React

E-commerce Website Frontend Development with React

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Expert in Web & Desktop App Development

Expert in Web & Desktop App Development

Cover image for Arch Linux Installation Script

Arch Linux Installation Script

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Cover image for Timecat Chess Engine

Timecat Chess Engine

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Cover image for Good Looking Responsive Website

Good Looking Responsive Website

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