Freelancers using FastAPI in Kolkata
Freelancers using FastAPI in Kolkata
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Eajaj Hossain
Kolkata, India
AI Developer & Agentic AI Engineer
New to Contra
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AI Developer & Agentic AI Engineer
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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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32
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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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52
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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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I designed and developed a cinematic 3D interactive website concept created to turn a couple’s memories into an immersive digital experience. Instead of presenting photos in a traditional gallery, the experience transforms them into a visual journey — combining 2.5D photo depth, floating memories, particle effects, constellation-style visuals, animated transitions, ambient sound, and a cinematic storytelling flow. What I built • Premium cinematic UI/UX • Interactive 3D / 2.5D photo experiences • Depth-based photo animations • Particle and floating-memory effects • Animated timeline and counters • Interactive storytelling sections • Ambient audio experience • Responsive design • Performance-conscious Three.js implementation • Next.js-based architecture The concept A couple can turn their favorite moments — trips, dates, proposals, weddings, anniversaries, and everyday memories — into a personalized interactive experience instead of another ordinary photo album. This concept can also be adapted into a premium product for anniversaries, weddings, proposals, Valentine's Day, birthdays, and special occasions. Tech Stack Next.js • React • TypeScript • Three.js • WebGL • CSS I'm available to build similar premium interactive websites, 3D experiences, landing pages, and personalized digital experiences for brands, businesses, creators, and special occasions. #WebDevelopment #WebDesign #ThreeJS #3DWeb #InteractiveWeb #CreativeDevelopment #3DWebsite #ImmersiveWeb #CinematicWeb #MotionDesign #NextJS #ReactJS #WebGL #CreativeCoding #DigitalExperience
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17
FastAPI
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Akashdeep Das
Kolkata, India
Full stack web developer and automation expert.
$5k+
Earned
46x
Hired
5.0
Rating
25
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Expert
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Full stack web developer and automation expert.
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Chatterbox TTS: Real-Time Text-to-Speech Service
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32
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Real-Time AI Avatar Backend and Frontend integration Development
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26
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Audio Processing API Deployment on AWS Lambda
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70
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FastAPI
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Arpan Goswami
Kolkata, India
ML Engineer | AI Agent Dev | NLP & CV Expert
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ML Engineer | AI Agent Dev | NLP & CV Expert
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Smart Document Analyzer
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7
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Data Analysis and Prediction Website
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4
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Sentiment Analysis for Product Reviews
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7
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Real-time Intrusion Detection System
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5
FastAPI
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