Freelance AI Developers in KolkataFreelance AI Developers in Kolkata
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Eajaj Hossain's avatar
Eajaj Hossain
Kolkata, India
AI Developer & AI Agent Engineer
New to Contra
AI Developer & AI Agent 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 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 I designed and developed a
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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Cover image for Designed and developed a modern
Designed and developed a modern 3D interactive website concept for Freej Swaeleh, a Kuwaiti restaurant brand. The goal was to create a premium digital experience that combines Kuwaiti cultural identity with modern 3D web design, while making it easy for customers to explore the restaurant, menu, branches, gallery, FAQs, and ordering options. What I built • Interactive 3D website experience • Modern responsive UI/UX • Restaurant menu & dish showcase • Branch/location section • Food gallery • FAQ section • Online ordering concept • Mobile-responsive experience • Smooth animations and interactive elements AI Integration Concept I also designed the concept for an AI Restaurant Agent that could be integrated into the website to provide 24/7 customer assistance — answering menu questions, recommending dishes, providing branch information, helping with reservations/orders, and more. Live Demo: https://eajajhossain.github.io/freej-swaeleh/ Note: This is an independent concept/prototype created to demonstrate the potential digital experience and is not an official Freej Swaeleh website.
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AI Developer(2)
Subham paul's avatar
Subham paul
Kolkata, India
AI Engineer
AI Engineer
Cover image for KTech is a modern online tech education platform built to he...
KTech is a modern online tech education platform built to help students and professionals gain real-world, job-ready skills. It offers industry-aligned courses in Full Stack Development, AI & Machine Learning, Data Analytics, Cloud, DevOps, Cybersecurity, and emerging technologies. Designed with a powerful MERN-stack backend, KTech focuses on hands-on learning, live & recorded sessions, secure payments, and scalable course management—bridging the gap between theory and practical industry experience.
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Cover image for indiacampus.in (http://indiacampus.in) is a next-gen Learnin...
indiacampus.in (http://indiacampus.in) is a next-gen Learning Management System (LMS) designed to empower schools, colleges, and training institutes in India with a seamless digital education experience. Built for modern educators and learners, it brings together course management, interactive learning, performance tracking, and collaboration tools into one intuitive platform. IndiaCampus LMS transforms traditional classrooms into engaging online hubs that work across devices — making education accessible, organized, and measurable. From administrators to teachers to students, everyone gets the tools they need to teach and learn with zero friction.
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Cover image for AI Code Explainer is an AI-powered SaaS platform built to he...
AI Code Explainer is an AI-powered SaaS platform built to help developers, students, and teams understand code faster and with more clarity. Reading unfamiliar or legacy code wastes hours. This tool solves that by acting like a smart senior developer that explains logic, suggests improvements, and highlights best practices in seconds. 🚀 Key Features Explain any code in plain, easy-to-understand language AI-powered debugging insights Best practices & code improvement suggestions Compare two versions of code side-by-side Supports multiple programming languages Clean, developer-first UI 💡 Business Model Free plan: Limited daily explanations Pro plan: Unlimited usage 📌 Current Status Live & publicly accessible Actively improving based on user feedback Focused on SEO-driven organic growth 🔗 Live Demo: https://kbs.institute/
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Cover image for Book Roofing Appointments in Minutes
Book Roofing Appointments in Minutes with AI This demo showcases a fully responsive roofing website where homeowners can book inspections directly from their mobile devices using an AI-powered chatbot integrated with Calendly. The experience is designed to reduce response times, automate scheduling, and make it easier for roofing companies to convert website visitors into booked appointments. Features 📱 Fully responsive mobile design 🤖 AI chatbot for instant customer assistance 📅 Calendly appointment scheduling 🏠 Roofing inspection booking workflow ⚡ Fast and intuitive user experience 📧 Automated appointment confirmation 📊 CRM-ready lead capture 🔒 Secure and scalable implementation
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AI Developer(3)
Arpan Goswami's avatar
Arpan Goswami
Kolkata, India
ML Engineer | AI Agent Dev | NLP & CV Expert
ML Engineer | AI Agent Dev | NLP & CV Expert
Cover image for Smart Document Analyzer
Smart Document Analyzer
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Cover image for Sentiment Analysis for Product Reviews
Sentiment Analysis for Product Reviews
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Cover image for Data Analysis and Prediction Website
Data Analysis and Prediction Website
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Cover image for Real-time Intrusion Detection System
Real-time Intrusion Detection System
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AI Developer(2)
Akashdeep Das's avatar
Akashdeep Das
Kolkata, India
Full stack web developer and automation expert.
$5k+
Earned
46x
Hired
5.0
Rating
25
Followers
REPLIT_EXPERT

Expert

Full stack web developer and automation expert.
Cover image for Chatterbox TTS: Real-Time Text-to-Speech Service
Chatterbox TTS: Real-Time Text-to-Speech Service
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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 Real-Time AI Avatar Backend and Frontend integration Development
Real-Time AI Avatar Backend and Frontend integration Development
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AI Developer(1)
Abhishek Jha's avatar
Abhishek Jha
Kolkata, India
15+ Yrs Developer With Projects of AI, Blockchain, Websites
7
Followers
15+ Yrs Developer With Projects of AI, Blockchain, Websites
Cover image for FixMySlide .. created in <
FixMySlide .. created in < 24 hrs.. via Figma Make is a Text to Slides Designer created using Figma Make, and Integration with Supabase and OpenAI API.. 1. FixMySlide Figma Make Site Link: https://git-trout-05007105.figma.site 2. FixMySlide Community Link: https://www.figma.com/community/file/1649630322186671975 3. Walkthrough Video: https://youtu.be/J-GPSBo2gt8 4. Social Clip: https://x.com/EasyBasedotsite/status/2067829094625255627 I have also used 1. #FigmaMCP to create initial Deck Design then 2. #FigmaWeave to Create Background Design then 3. #FigmaMake
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Cover image for See AI. — A flippable
See AI. — A flippable AI literacy magazine (built in Wonder) My family kept asking: "Is this message real? Is this photo AI?" So I built See AI. — a 10-spread flippable magazine for daily life. Not for developers. For anyone with a phone. 🔗 Wonder file: https://app.wonder.so/abhishek-jha/files/019f1d4f-7698-7319-b303-4591537e5739 🌐 Live preview (optional): https://see-ai-delta.vercel.app What's inside: • Cover + 8 photo spreads — scams, fake photos, voice clones, homework • Full-width sponsor ads (WhatsApp, Midjourney, NotebookLM, Truecaller, etc.) • Spine-bound page-flip interaction • Back page: advertising contact + QR + barcode Designed in Wonder using Chat (layouts) + shader (dark editorial stage). Plain words, real situations — no jargon. Walkthrough video attached. #wonderchallenge
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Cover image for Angel Baby — Almost Angels
Angel Baby — Almost Angels Co. | Recraft Challenge Meet Angel Baby 👼 Angel Baby is the mascot of Almost Angels Co. — a fictional brand for everyday comfort. A pint-sized celestial intern who specializes in almost-invisible acts of kindness. Clumsy but devoted, Angel Baby proves magic doesn't need spectacle — just presence. 🔗 Recraft project: https://www.recraft.ai/project/08a8ca2e-5165-4e40-92fd-0558989d1501 What's included: • Original mascot — Angel Baby • Custom wordmark — Angel Baby with Almost Angels Co . • Sticker sheet + 5 product lineup (soap, sticker, doll, tea, scent) • Poster / cafe scenes + consistency proof • Brand Video in Landscape (see video) Built entirely in Recraft Studio — V4.1 Exploration, Vector wordmark, reference workflows, and image-to-video. #recraftchallenge
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Cover image for BitEdu - ReactJs Theme For Bitcoin Education Website
BitEdu - ReactJs Theme For Bitcoin Education Website
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AI Developer(1)
Anurag Das's avatar
Anurag Das
Kolkata, India
Full-Stack | Golang | NodeJS | NextJS | React | Dev-Ops
Full-Stack | Golang | NodeJS | NextJS | React | Dev-Ops
Cover image for AI Content Generation SAAS Website
AI Content Generation SAAS Website
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Cover image for Spotbuzz Marketing Website
Spotbuzz Marketing Website
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Cover image for React Native Mobile Math Game
React Native Mobile Math Game
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Cover image for VPN App Developed With React Native
VPN App Developed With React Native
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AI Developer(1)
Pradip Kaity's avatar
Pradip Kaity
Kolkata, India
Fast, Customized Web Design with Free Add-Ons
Fast, Customized Web Design with Free Add-Ons
Cover image for Deepali Narula Portfolio
Deepali Narula Portfolio
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Cover image for Reusable UI Components Web Application using VUE and Firebase
Reusable UI Components Web Application using VUE and Firebase
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Cover image for Figma/XD Design to Dynamic Web Apps
Figma/XD Design to Dynamic Web Apps
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Cover image for Innovative Marketing for Bold Brands
Innovative Marketing for Bold Brands
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AI Developer(1)