MongoDB Jobs

We are looking for a full-stack Web3 developer to complete and productionize a cryptocurrency payment gateway. The product enables merchants to accept TEXITcoin (TXC) and PUREmedal (PURE) payments, with a merchant dashboard and a customer checkout flow. The core architecture is in place; we need someone who can close gaps, fix edge cases, align frontend and backend, and prepare for deployment. About the Project Product: Payment gateway (branded “Kryptopay”) for TXC and PURE. Merchants get API keys, configure webhooks and wallets (HD/xpub or static addresses), and receive payments; customers are shown a payment address and real-time status until the order is confirmed and the merchant is notified via webhook. Backend: Node.js (Express), MongoDB (Mongoose), Bitcoin-style JS...

Title: Senior Python Developer for US Data Pipeline and iOS Verification System (Phase 1) Project Description Suggestion: Overview: > We are looking for a senior Python developer to build an automated data scraping and iOS verification pipeline based in the US. The goal for Phase 1 is to acquire over 10,000 verified leads per day. Core Tasks: 1. Data Scraping: Extract data (name, phone number, age, gender, carrier) from US people search websites. 2. Anti-detection: Must integrate the API and set render=true and super=true. 3. Data Filtering: Implement automatic filtering by wireless/phone number and age range (50-90 years old). 4. Data Verification: Integrate the LoopLookup API to verify iMessage activation status. 5. Data Export: Automatically sort and export data to tagged .t...

Our mobile app is already live on a staging domain, built with React Native, Node.js (Express) and MongoDB. I now need a full-stack developer who can dedicate the next seven days to finish three key items and move everything to our official domain. 1) Community auto-membership Every new registrant should be placed into the correct in-app community automatically when their professional email domain matches one that we map in the database. No manual steps—just detect, assign and save. 2) OTP email verification Before the first login the user must confirm ownership of that professional address. Generate a one-time six-digit code, send it via email, and allow a single attempt window with proper resend limits and expiry logic. 3) Production deployment The existing backend and adm...

I’m building a mobile-only app that needs a real-time text chat backend dedicated to one-on-one conversations. The goal is a lightweight, low-latency server that can authenticate users, deliver messages instantly, store chat history, and scale as the user base grows—all without the overhead of group or public room logic. I’m open to proven stacks such as Node.js with WebSocket/, Go with gRPC, or an equivalent solution that plays nicely with iOS and Android clients. End-to-end encryption, push-notification hooks (FCM / APNs), and a RESTful or GraphQL API for ancillary data are highly desirable. Deliverables • Production-ready server code with clear setup instructions • Secure user authentication and encrypted message transport • Message persistence (Mo...

I want a clean, fast portfolio site built entirely with the MERN stack—MongoDB, Express, React, and Node.js. The goal is to present my work and services in a professional, responsive layout that looks great on desktop and mobile alike. Key pages will include Home, About, Projects, and Contact, but I’m happy to discuss additional sections if you feel they will strengthen the overall presentation. No user accounts or authentication flows are required, so you can keep the build streamlined and performance-focused. Design matters: subtle animations, smooth page transitions, and an intuitive navigation bar will help the site feel polished. SEO-friendly markup and meta tags are also important so that search engines can pick up the content quickly. Please deploy the finished ...

I’m launching an online store and need a developer who can take the project from blank domain to a fully operational e-commerce site. The single non-negotiable requirement is a rock-solid payment gateway integration that handles multiple cards securely and passes PCI compliance checks. I’m open on platform—Shopify, WooCommerce, Magento, or any other stack you’re comfortable with—as long as the final build is stable, fast, and easy for me to manage after hand-off. Product search, filters, and customer reviews may be added in later phases, but they aren’t part of this initial scope. Deliverables • Responsive storefront with sample product catalog • Payment gateway set up, tested end-to-end in both sandbox and live modes • Admin das...

I'm seeking an experienced backend developer to build the backend for a cab booking application using Node.js. Essential Features: - User authentication - Payment processing - Driver tracking Ideal Skills & Experience: - Proficiency in Node.js - Experience with user authentication and payment processing - Knowledge in tracking algorithms and databases (MongoDB, MySQL, or PostgreSQL) Please provide relevant work experience.

I need a full-stack developer who can turn a straightforward informational concept into a polished, responsive web application. The site will be open to the general public for browsing, while registered users will enjoy additional authenticated features. You are free to choose between a Python (Flask) or Node.js backend, but please keep MongoDB as the data store. On the front end, I expect clean, semantic HTML, modern CSS for a crisp UI, and JavaScript to keep interactions smooth. The back end should expose well-structured RESTful routes that handle basic authentication along with standard CRUD actions. Whether you pick Flask with Jinja templates or a Node/Express stack with a preferred view layer, the code must remain clear, modular, and fully documented so another developer can step in ...

Real-Time MERN Collaboration Platform (Notion + Slack hybrid), I’ll write a polished, client-facing version. Project Title Real-Time Collaborative Document & Communication Platform (MERN Stack) Freelancing Description (Professional Version) I have developed a production-grade real-time collaborative web application using the MERN stack (MongoDB, , React, Node.js) with for live synchronization. This platform allows multiple users to collaborate on documents simultaneously with secure access control and real-time updates — similar to tools like Notion or Google Docs. Core Features Secure JWT Authentication Login / Signup Email verification via OTP Password reset system Protected API & WebSocket routes Real-Time Rich Text Editor Built with Delta-based con...

We’re expanding the next round of services at Inboxlogy, and we’re looking for a freelance backend developer to help us build new features on top of our existing application. About Inboxlogy, Inboxlogy helps businesses grow 10X faster by setting up scalable email outreach infrastructure and providing cost-effective deliverability solutions. Our core system is already built — now we’re enhancing it with new modules and advanced functionality. What You’ll Work On You’ll be responsible for backend feature development and system enhancements, including: * Building and enhancing REST APIs using Java + Spring Boot * Designing scalable business logic and service layers * Working closely with the front-end team to support new features * Integrating with MongoD...

I’m putting together a multi-page web application built with ReactJS (NextJS framework), and I’d like a hand finishing the core functionality. The app must: • include secure user authentication (sign-up, login, protected routes) • render dynamic content pulled from a NoSQL database (MongoDB is my current pick, but I’m open to another option like Firebase) • handle multiple forms with client- and server-side validation All pages are already wireframed; your job is to implement the React/Next components, integrate the database layer, and ensure the UX remains smooth across page transitions. I’ll provide Figma mock-ups, the existing repo, and API endpoints on project start. Acceptance criteria 1. Users can register, verify, log in/out, and acc...

Company Description Authem is India's 1st real-time marketplace for limited edition sneakers, streetwear, and collectibles. Using a bid/ask system, we let buyers and sellers set real market prices, no arbitrary markups, no guesswork. Every item is thoroughly verified for authenticity before it reaches your hands, so you can trade with complete confidence. Whether you're hunting grails or moving pieces from your collection, AUTHEM gives you control, protection, and honest pricing in a market that's needed it for years. The Role We're looking for a skilled Full Stack Developer to build our marketplace platform from the ground up and own its ongoing development and maintenance. This is a unique opportunity to be the founding technical team member of an exciting startup, w...

This project is a new social networking platform that needs end-to-end development on the MERN stack. The goal is to deliver a scalable, secure web application where users can create accounts, interact in real time and consume dynamic content. Core work spans the full stack: designing MongoDB collections, building an Express/Node.js backend with REST or GraphQL endpoints, and crafting a responsive React front-end. Real-time features (chat or live updates) should leverage or a comparable solution. Clean, well-commented code in a Git repository and deployment to a staging server are essential. Deliverables: • MVP deployed to a test server with sign-up/login and editable user profiles • Documented API plus a concise README for local setup • Two weeks of post-launch...

I need a sharp-eyed Flutter / Node.js troubleshooter to pinpoint and fix an intermittent signup failure in my mobile app. The OTP step completes successfully, yet many users (on both iOS and Android) hit a wall when the form tries to create the account. No explicit error is returned to the UI, but the account never appears in the database. Here is what I can share right away: • Front end: Flutter 3.x, using MSG91 for phone-based OTP. • Back end: Node.js (Express) REST API, MongoDB. • Flow: user enters phone → receives OTP → OTP verified → form posts profile details → failure occurs after the POST. What I need from you is a fast, reproducible diagnosis, a clean code fix (whether in Dart, the REST endpoint, or both), and a short hand-off note so my te...

The goal is to craft a complete web application from the ground up, pairing a React.js front end with a Node.js back end and shipping a functional MVP within a month. I already know I want React for the client interface, so the build should follow best-practice component architecture, modern hooks, and a clean, responsive layout. On the server side, Node.js (Express preferred) will power a RESTful API, handle authentication, and connect to a persistent data store—MongoDB or PostgreSQL, whichever you feel best suits the use case. To keep expectations crystal clear, here are the concrete deliverables: • Git repo initialized with meaningful commits, README, and .env sample • React UI coded, styled, and wired to the API (state management via hooks or Redux) • Node.js...

Job Title: Technical Support Developer (React/Azure/MongoDB) – UK Hours 9am-6pm The Platform: The platform is a working MVP currently undergoing user testing. It is a careers-driven events hub featuring a built-in career coach booking system and event registration modules. The code is complete; I now require a reliable, sharp developer for ongoing maintenance, bug fixes, and feature iterations during our launch phase. The Role: This is a pay-as-you-go position for a developer who is exceptionally fast at learning and navigating existing codebases. You must be able to grasp the site logic quickly, fix bugs efficiently, and ensure high-quality code deployment. Key Requirements: Availability: You must be available 9am – 6pm UK Time. You must also be available for emergency bug...

We need a Node.js Expert from Pakistan or India we need work for Guidance and Help we need work for long term

I’m in the middle of a CROMA overhaul and the single, driving objective is to refresh existing features by squeezing every last millisecond out of them. No new bells and whistles—just a focused performance pass aimed at raw speed. Here’s the picture: React on the client side, Node.js/Express talking to a MongoDB cluster, all containerized in Docker and running on AWS ECS. I already have baseline profiling data and a staging environment waiting; once we start, you’ll get full access so you can re-profile, isolate the slow spots, and rewrite or refactor whatever is holding us back. Deliverables • A set of well-commented code changes or configuration tweaks • A before-and-after benchmark report (same test suite, same hardware) showing at least a 35 % dr...

ooking for a Developer to Build a Custom UPI-Based Earning App + Admin Panel I want to build a fully working earning app like: Reference Apps: - 789Pay → [login to view URL] - HKPay - IncoinPay - LakshmiPay This is not a basic earning app — it must work like a self-controlled UPI-based gateway for deposits and withdrawals between users, just like the apps above. Core App Features: - UPI Deposit using apps like PhonePe, Paytm, Freecharge, Mobikwik, Slice, etc. - Auto Transaction Tracking (no Razorpay or payment gateway — via app scraping or any method) - Custom Wallet: Deposit, Withdrawal, Balance - Order Auto-Matching System: One user’s withdrawal = another’s deposit - Referral Commission (1.5% to direct, 0.3% to indirect) - Admin Manual Control Option - W...

This is PHASE 2 of an already existing project. I need a full-stack Flutter application that runs smoothly on iOS, Android, and the web, allowing landlords in Cameroon (and ultimately all of Africa) to publish room listings while tenants browse, filter, and book viewings. Every booking fee will be held in an escrow wallet until the viewing is completed, so the payment flow has to be airtight and auditable. Core experience • Room listing with powerful search and filters • Secure booking tied to an escrow payment workflow • Rating and review system that lets both sides build trust Additional engagement features Push notifications must alert users to new listings, booking confirmations, and escrow releases. In-app messaging should let landlords and tenants coordinate details ...

Job Title: NestJS Backend Developer – High-Performance Car Bulk Import (ETL) The Challenge We are looking for a senior-level NestJS developer to build a robust, production-ready car data import engine for our vehicle marketplace. This isn't a simple "upload and save" task; we require a sophisticated streaming pipeline capable of processing massive datasets (CSV, XML, JSON) with minimal memory footprint and high reliability. Core Task Build a POST /imports/cars endpoint that: Automatic Format Detection: Handles multipart/form-data and identifies the file type (CSV, XML, or JSON) programmatically. Stream-Based Processing: Processes data using Node.js Streams / AsyncIterables. The application should never load the full file into RAM. Data Pipeline: Implements a clean ...

The Role We are looking for a skilled Full-Stack Developer to join our growing dev team. You will be working alongside our existing developers to build out new features, optimize performance, and scale our vehicle marketplace platform. We need someone who is comfortable jumping into a mature codebase, collaborating via Git, and contributing to a high-quality TypeScript environment. Technical Stack Frontend: (React), TypeScript. Styling: Tailwind CSS & Bootstrap (handling a hybrid UI environment). Backend: Node.js / NestJS. Database: MongoDB. Tools: Git/GitHub, Vercel, and experience with AI-assisted coding (Cursor, Lovable, etc.) is a major plus. Key Responsibilities Feature Development: Collaborate with the team to ship new frontend components and backend endpoints. Data Hand...

I have a complete Figma prototype for a new online store and now need those screens turned into a live, responsive e-commerce site. Every component in the design—headers, product cards, cart icons, micro-interactions—should be reproduced pixel-perfectly in the browser and remain consistent across desktop, tablet, and mobile. The design system is already organised, so you can focus on front-end execution and back-end integration. I’m flexible about the tech stack: Shopify, WooCommerce, or Magento are all on the table as long as the final solution is easy for a non-technical store manager to maintain. If you have a clear preference among these platforms, let me know why and how it benefits performance, SEO, and future scalability. Deliverables • Fully responsive th...

I’m building a mobile-only app that needs a real-time text chat backend dedicated to one-on-one conversations. The goal is a lightweight, low-latency server that can authenticate users, deliver messages instantly, store chat history, and scale as the user base grows—all without the overhead of group or public room logic. I’m open to proven stacks such as Node.js with WebSocket/, Go with gRPC, or an equivalent solution that plays nicely with iOS and Android clients. End-to-end encryption, push-notification hooks (FCM / APNs), and a RESTful or GraphQL API for ancillary data are highly desirable. Deliverables • Production-ready server code with clear setup instructions • Secure user authentication and encrypted message transport • Message persistence (Mo...

Projektname: Multi Adding Social Media Platform Kurzbeschreibung: Wir suchen erfahrene Entwickler/Teams für die Erstellung einer modularen, skalierbaren Social-Media-Plattform, die Content-Creator, Nutzer und Admins verbindet. Die Plattform soll multilingual, rechtlich konform und hochsicher sein. Live-Streaming wird vorbereitet, aber nicht aktiv im MVP umgesetzt. Ziele: Multi-User Social Media Plattform (User, Creator, Admin, Moderation, Compliance) Token-gestützte Monetarisierung inkl. Kauf, Bonus, Auszahlung Multi-PSP Unterstützung: Stripe, PayPal, Paysafe, Visa/Mastercard, IBAN/SEPA, Bitcoin (BTC) KI-gestützte Content-Moderation und Empfehlungen KYC / Altersverifikation (ID Upload, Selfie, Liveness Check) Frontend Widgets: Token-Kauf, Altersprüfung, DRM...

We are looking for an experienced React.js and Node.js developer (Full Time Freelancer, not an Agency or Part Time freelancer) to develop and integrate APIs for our web application. The developer will be responsible for creating secure, scalable, and well-documented APIs and connecting them with third-party services. This project involves backend API development, third-party service integration, and frontend API consumption where required. ✅ Responsibilities: Develop REST APIs using Node.js and Integrate third-party APIs / external services Connect APIs with React.js frontend Implement authentication systems (JWT, OAuth, API Keys, etc.) Handle data validation, error handling, and performance optimization Write clean and maintainable code Provide API documentation (Postman / Swagger pref...

I need a blazing-fast, fully responsive online store built with and Tailwind CSS. Use whichever backend stack—Node.js or Python—helps you move quickest, pairing it with either PostgreSQL or MongoDB for data storage. The project must deploy cleanly on Vercel (Netlify is fine too) with seamless CI/CD. Core requirements • Server-side rendering plus rich Schema Markup so products surface on Google immediately. • Image delivery through Cloudinary with automatic compression and responsive breakpoints. • Secure checkout via Razorpay or Stripe, covering the full order lifecycle—cart, payment, confirmation, refunds. • Google Analytics 4 events for product views, add-to-cart, checkout start, and purchase. • An admin panel to add and edit product...