Freelancers using MongoDB in HyderabadFreelancers using MongoDB in Hyderabad
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Mubashir Ahmed's avatar
Mubashir Ahmed
Hyderabad, India
SaaS Builder | MERN + Real-time Apps & IoT
New to Contra
SaaS Builder | MERN + Real-time Apps & IoT
Cover image for I built an AI-powered data
I built an AI-powered data enrichment system that efficiently processes and improves large university datasets. It automates the entire enrichment workflow, handles structured data cleanly, and gives real-time logs so you can easily monitor what's happening in the pipelines. The main goal was to make the whole process scalable, automated, and easy to manage. I created a clean dashboard where users can track everything, which really helps improve data quality and gives full visibility into the operations. Key Highlights: AI-driven data enrichment workflows Real-time processing logs and activity monitoring Structured university data management Automated backend pipelines Clean dashboard for monitoring and control Scalable and efficient architecture Tech Stack: Node.js, Express.js, MongoDB, JavaScript, REST APIs, AI Automation Tools
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Cover image for I built a clean and
I built a clean and modern e-commerce website focused on great user experience. The whole thing feels smooth, looks good, and works perfectly on both mobile and desktop. It includes a nice dynamic landing page, easy product browsing, add-to-cart functionality, a fully working shopping cart where you can change quantities or remove items, and a clean checkout page. I developed it using React and followed modern frontend practices. Everything is built with reusable components and responsive design so it feels fast and seamless no matter what device you're on. Key Highlights: Responsive homepage with a modern look Smooth add-to-cart experience Smart cart management (add, remove, update quantity) Clean and minimal UI/UX Fully mobile-friendly Tech Stack: React.js, Tailwind CSS, JavaScript, HTML & CSS
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Cover image for Built a full-stack overseas study
Built a full-stack overseas study abroad platform from scratch using the MERN stack. This wasn't just a CRUD app — it's a real SaaS system with four separate role-based dashboards (Student, Counselor, Admin, Super Admin), each with their own permissions and workflows. The student side lets users track their entire application journey — from shortlisting universities to monitoring visa progress in real time. Counselors get a dedicated space to manage their assigned students, handle documents, and track leads. Admins oversee the counselors and overall operations, while the Super Admin has full system control. Some things I'm genuinely proud of here: I integrated Socket.IO (http://Socket.IO) for real-time updates so students actually see status changes live without refreshing. Authentication runs on both Google OAuth and session-based login with Express Sessions. Security was taken seriously — Helmet.js for HTTP headers, XSS protection, and need-based API design so the server never over-fetches. Cloudinary handles all media uploads for university images and application documents. The backend is built with pagination from day one, so it scales cleanly even with thousands of universities and users in the database. The whole thing is modular — adding new roles or features doesn't break existing flows. This is one of those projects where I had to think like a product engineer, not just a developer. Managing multi-role access, real-time communication, and secure document handling all in one system was a solid challenge and I'm happy with how it came together.
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Cover image for 🚨 Preventing equipment failure with
🚨 Preventing equipment failure with real-time IoT monitoring I built a live temperature monitoring system that detects critical changes instantly and alerts before damage happens. 🔴 Live Demo: https://live-temperature-sensor.vercel.app This system streams real-time sensor data using Socket.IO (http://Socket.IO) — no refresh, no delay. ⚡ What it does: • Real-time temperature tracking with live graphs • Instant alerts when thresholds are exceeded • Predictive insights to detect risks early • Device health monitoring (battery, uptime, status) 🧠 Tech Stack: React + Node.js + Socket.IO (http://Socket.IO) + IoT sensors (MQTT) 💡 Use cases: • Server rooms & data centers • Industrial environments • Medical storage systems • Smart IoT setups 👉 Built as a scalable real-time system, not just a dashboard. If you're working on IoT or real-time applications, let’s connect.
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MongoDB(1)
Vishnu Vardhan Reddy Gajjala's avatar
Vishnu Vardhan Reddy Gajjala
Hyderabad, India
Passionate full-stack dev building impactful solutions.
Passionate full-stack dev building impactful solutions.
Cover image for Cuisine Creators Recipe Sharing Platform
Cuisine Creators Recipe Sharing Platform
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Cover image for Smart Study Scheduler Development
Smart Study Scheduler Development
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Cover image for Fullstack 1v1 DSA Competition Platform
Fullstack 1v1 DSA Competition Platform
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MongoDB(2)
saivamshi gannoju's avatar
saivamshi gannoju
Hyderabad, India
Full-stack engineer shipping production SaaS & AI systems
New to Contra
Full-stack engineer shipping production SaaS & AI systems
Cover image for The Whole Truth Foods — E-commerce Platform
The Whole Truth Foods — E-commerce Platform
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Cover image for RepoFox — AI Repository Intelligence
RepoFox — AI Repository Intelligence
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Cover image for DownloadAnything — Universal Web Downloader
DownloadAnything — Universal Web Downloader
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Cover image for Bannerbear — Media Generation API
Bannerbear — Media Generation API
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MongoDB(1)
Sree charan reddy Pacharla's avatar
Sree charan reddy Pacharla
Hyderabad, India
Full Stack Developer, Node.js Specialist
Full Stack Developer, Node.js Specialist
Cover image for sreecharan7/form-website
sreecharan7/form-website
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Cover image for sreecharan7/socialMediaBackend
sreecharan7/socialMediaBackend
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Cover image for sreecharan7/schoolPeriodPlayer
sreecharan7/schoolPeriodPlayer
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MongoDB(2)
Varun Kodi's avatar
Varun Kodi
Hyderabad, India
Full-stack Developer
Full-stack Developer
Cover image for Crypto Payments System
Crypto Payments System
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Cover image for Solana Blockchain Token
Solana Blockchain Token
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Cover image for Event Manager
Event Manager
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MongoDB(1)
Raghu Teja's avatar
Raghu Teja
Hyderabad, India
Fullstack Developer: Dream Apps to Reality
Fullstack Developer: Dream Apps to Reality
Cover image for Starter Stack
Starter Stack
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Cover image for WrapLinks
WrapLinks
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Cover image for 20minrecipes
20minrecipes
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Cover image for IndieLaunch
IndieLaunch
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MongoDB(2)
Abhishek Kumar's avatar
Abhishek Kumar
Hyderabad, India
Full-Stack Developer · MERN, Next.js & AI Integration
New to Contra
Full-Stack Developer · MERN, Next.js & AI Integration
Cover image for Full-stack chat and video calling
Full-stack chat and video calling app built with MERN stack and Stream SDK. Features real-time 1-on-1 messaging with typing indicators and reactions, video calling with screen sharing, friend request system, email verification via Resend, JWT authentication, and 32 UI themes. Built with React.js, Node.js, MongoDB, Zustand, and TanStack Query.
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Cover image for "Full-stack e-commerce platform built with
"Full-stack e-commerce platform built with MERN stack and Razorpay payment integration. Features product catalog with search and filtering, shopping cart, secure checkout, order tracking, and admin dashboard for managing products, orders, and users. Responsive design optimized for both desktop and mobile.
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Cover image for Built and deployed a production-grade
Built and deployed a production-grade multi-tenant WhatsApp AI lead qualification platform for real estate, using LangGraph, Meta Cloud API, and OpenAI. An AI agent (not a script) qualifies leads through natural conversation — understanding property type, location, budget, and timeline. Runs on a 7-node LangGraph state machine, not hardcoded if-else flows. Includes multi-language support (English, Hindi, Telugu, Tamil), automated follow-ups, vector-based semantic search for vague queries, real-time broker alerts, and multi-tenant isolation with AES-256 encrypted credential storage.
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Cover image for Built NexCart, a production-ready e-commerce
Built NexCart, a production-ready e-commerce platform with secure Polar payments, automated order fulfillment via webhooks, per-order Stream support chat, and video calling. Includes an admin dashboard with ImageKit image management and role-based access. Stack: Node.js, TypeScript, Express, PostgreSQL, React, Clerk, Tailwind CSS. Deployed on Railway.
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MongoDB(2)