NoSQL Couch y Mongo Jobs

I’m looking for a developer who can create a small-footprint application focused exclusively on USDT transaction management. The tool will not mine coins or generate wallet addresses; its single job is to monitor activity on one or more USDT wallets, capture every movement, and store a clear audit trail. Core workflow Whenever a USDT payment is sent or received, the app should automatically pull the on-chain data (Omni, ERC-20, or whichever network you recommend) and write an immutable record containing: • Date & time of the transfer (UTC) • Exact amount of USDT moved • Blockchain transaction ID I’d like the records displayed in a simple dashboard and also saved to a back-end data store (SQLite or Postgres is fine) with a one-click CSV export. A R...

Looking for Senior Backend Engineer — Data Pipeline & Scalable Systems (Node.js + PostgreSQL)

Senior Full Stack Developer – Interview Preparation Support Summary Hiring an experienced full stack engineer to assist with technical interview preparation, including realistic simulations and communication improvement. ________________________________________ Scope of Work You will run structured interview-style sessions and provide direct feedback on both technical depth and clarity of explanation. The goal is to strengthen performance in coding, system design, and real-world technical discussions. ________________________________________ What Success Looks Like • Clear and structured technical explanations • Improved performance in mock interviews • Stronger presentation of project experience • More confident communication in live discussions _____________...

I need a production-ready dashboard built on Node.js that streams website-traffic data in real time, lets me administer users, and pushes notifications to the right people instantly. For the visual layer, think smooth charts that update live via WebSockets or without forcing a page refresh. The traffic feed is already available from our analytics endpoint, so your job is to consume that JSON stream and render it with a library you feel comfortable with—, D3, ECharts, or similar—as long as the result stays responsive on desktop and mobile. User management must be fully integrated: role-based access control, individual user profiles, and searchable activity logs so I can trace who did what and when. A simple admin UI for creating roles, assigning permissions, and viewing audit...

Elekyo Admin is a modern admin dashboard designed to manage and control the operations of the Elekyo e-commerce platform. It is developed using the MERN stack (MongoDB, , React.js, Node.js) and styled with Tailwind CSS for a clean and responsive user interface. The dashboard allows administrators to manage products, monitor platform data, and handle essential e-commerce operations through a structured and intuitive interface. It is built with a strong focus on usability, making complex tasks simple and efficient. The frontend is developed using React.js with Tailwind CSS to create a modern, responsive, and user-friendly design. The backend is powered by Node.js and , with MongoDB handling data storage and management efficiently. Elekyo Admin is designed with scalability in mind and can ...

Elekyo is a full-featured e-commerce web application developed using the MERN stack (MongoDB, , React.js, Node.js) with Tailwind CSS for modern UI design. The platform is built to deliver a seamless and user-friendly online shopping experience with a strong focus on performance, scalability, and clean interface design. The application allows users to browse products, explore categories, and interact with a responsive and intuitive interface optimized for both desktop and mobile devices. The frontend is designed with a clean and modern layout using Tailwind CSS, ensuring a visually appealing and consistent user experience. On the backend, Elekyo is powered by a robust Node.js and server with MongoDB as the database, enabling efficient data handling and scalable architecture. The system i...

I have an app that I created with Claude Code base on AI. I built the application and move it to Google I am using Firebase for auth and Firestore for authentication. I need someone to make the app robust enough to go production . A enthusiastic person that also will be part of the journey and product. Needs to know AI, and Testing if possible development phyton

I’m building a lightweight telehealth web app and need an experienced backend developer to set up the core services. The stack is fixed at Node.js for the server layer and PostgreSQL as the data store, so deep familiarity with Express (or a comparable framework), query builders/ORMs, and SQL optimisation is essential. Scope of this first phase is intentionally narrow—two key modules only: 1. Secure user authentication (email / password, bcrypt hashing, JWT sessions) 2. Payment workflow wired to either Stripe or Razorpay—single-charge flow with webhooks for confirmation and refunds The REST API should expose clean endpoints the front-end team can consume for sign-up/login, patient profiles, appointment booking, and payment intent creation. Please containerise the ...

I need an experienced full-stack developer who can take a product from database schema right through to polished user interfaces and have it running smoothly on every major platform we care about. The goal is a single, cohesive code-base that delivers: • Web application • Android build • iOS build You should be comfortable switching hats between back-end architecture (API design, database optimisation, security) and front-end flair (clean UI, responsive layouts, native-feeling interactions). Whether you prefer Node.js with React, Django with Flutter, or another proven stack, the emphasis is on maintainable, well-documented code that can scale. Please outline the tech stack you’d use and walk me through a recent cross-platform project where you owned both serve...

I’m creating a brand-new application and need a single developer who can own the entire stack. The work spans the full journey—from crafting a polished, responsive front-end to wiring up robust back-end APIs, shaping the data layer in MongoDB, and finally deploying everything on AWS. MongoDB is the non-negotiable database for this project. For the rest of the stack (React.js, Node.js, or any comparable modern framework), I’m flexible as long as performance, scalability, and clean code standards are met. Deliverables • A fully-functioning application deployed to an AWS account I’ll provide • Well-structured MongoDB schema and seed data • Source code in a Git repository with clear commit history • Concise setup & deployment documentatio...

I’m building a scalable web app (PWA) that includes: - Stripe payment integration (webhooks) - Automatic generation of unique codes after purchase - User access system (token-based) - Audio streaming (audiobook) - Secure PDF delivery (premium only) - Album streaming (premium only) - Raffle system with user codes Requirements: - Strong experience with Node.js (Express or NestJS) - Experience with Stripe webhooks () - Experience building scalable systems (10k+ concurrent users) - Knowledge of queues / async processing (SQS, Redis, RabbitMQ) - PostgreSQL database design - AWS experience (S3, EC2 or Lambda) - Ability to build secure access control (token / signed URLs) Nice to have: - Experience with PWA () - Experience with media streaming - Experience with high-load systems Import...

I’m putting together a full-stack web application for advertising residential properties and I’d like a React front-end paired with a Node.js (Express) back-end. The platform is residential-only, so every screen, filter and data model can focus on homes and apartments rather than commercial space. Core data visible to visitors must include the number of bedrooms, total square footage and the asking price; those three fields need to be prominent in both card and detail views. Search and sorting should work off the same attributes. Role-based access is essential: • Admin – complete control over users, listings and site settings. • Agent – create, edit and deactivate their own listings, upload photos, mark properties as sold. • Buyer – brow...

I need a clean, well-structured Node.js backend to power a real estate platform. The server must expose RESTful endpoints (or GraphQL if you prefer) that handle two core domains: 1. Property listings management • Advanced search and filter capabilities so users can narrow results by location, price, bedrooms, and any custom attributes I add later. • Image and video gallery support for each listing, stored locally or in a cloud bucket, with URLs returned in the payload. • Dedicated property detail pages delivered through the API so the frontend team can render full descriptions, media, and agent contact information in one request. 2. User authentication & profile management • Secure sign-up, login, password reset, and token refresh. • ...

TÌM DEVELOPER PYTHON / REACT (3+ NĂM KN) – FREELANCE Bên mình là một software team mới, đang xây dựng network developer để triển khai các dự án web/app, automation và các hệ thống có sử dụng AI. Hiện chưa có dự án ngay, nhưng muốn kết nối trước với các bạn dev để có thể bắt đầu nhanh khi có project. Hình thức làm việc: 100% remote Giờ hành chính Làm việc theo từng project (freelance) Yêu cầu thời gian: Tối thiểu: ~20 giờ/tuần Hoặc full-time: 35–40 giờ/tuần (tuỳ theo project) Tech stack chính: Backend: Python (Django / FastAPI / Flask…) Frontend: React Database: PostgreSQL / MySQL / MongoDB CI/CD: GitHub Actions Cloud: ...

We are seeking an experienced full-stack developer to help build and maintain a scalable web application. The ideal candidate has strong expertise in both frontend and backend development, with a focus on clean architecture, performance, and maintainability. You will be responsible for developing responsive user interfaces, designing and implementing backend APIs, and collaborating with our team to deliver high-quality features. Responsibilities Develop and maintain frontend components using React Build and optimize backend services using Node.js and Express Design and integrate RESTful APIs Work with databases such as MongoDB or PostgreSQL Implement authentication and security best practices Collaborate with designers and other developers Ensure code quality, scalability, and performance...

I have a clear technical document ready and need a developer to turn it into a working full-stack real-estate site on the MERN stack. The project is not about flashy visuals; it is about reliable, maintainable code and a solid user experience. Core features I need live on day one: • Property listings with photos and key details • Secure user accounts and editable profiles • Fast search and filter functionality so visitors can quickly narrow results • Integration with external real-estate listings APIs to keep inventory fresh You will have freedom on UI layout as long as it is responsive and intuitive on desktop and mobile. I will share the full technical brief—including data models, page flow, and API endpoints—once we start so you can estimate e...

Need someone to deploy code. This will be ongoing work. SETUP: * Backend: Node.js (Express) * Frontend: React (Vite) * Server: Hostinger VPS * Domain: * Frontend: * Backend: TASK: 1. Clone repo or use provided ZIP 2. Backend Setup: cd backend npm install Create .env: PORT=3000 MONGO_URI=mongodb:// JWT_SECRET=supersecret 3. Install MongoDB: apt install -y mongodb systemctl start mongodb systemctl enable mongodb 4. Run backend: pm2 start src/ --name invesol pm2 save 5. Setup Nginx: server { server_name ; ``` location / { proxy_pass http://localhost:3000; proxy_set_header Host $host; } ``` } 6. Enable SSL: certbot --nginx 7. Frontend: cd frontend npm install npm run build Upload dist to: ...

Pro java & springboot developer Comfortable with AI and LLMs etc

Our custom construction ERP is in the final stretch. The core modules are in place, but three areas still block go-live: 1. Sales pipeline – Automation & workflows I have the UI and basic routes, yet deals do not progress automatically through stages, nor do the triggers for emails, task creation, and forecast updates fire reliably. I need you to hard-wire the logic in Node.js/Express and make sure the jQuery / Select2 front-end reflects every state change instantly. 2. PostgreSQL – Connection issues Under load the app occasionally drops connections and stalls. The schema relies on complex JOINs and several polymorphic associations, so I need a deep dive into pooling, transaction handling, and any rogue long-running queries that may starve connections. Fixes must ...

We are looking for a results-driven Business Development Specialist who can consistently secure high-value web and mobile development projects for our team. We specialize in modern, scalable technologies: – MERN Stack (MongoDB, Express, React, Node.js) – (high-performance web apps & SaaS platforms) – Flutter (cross-platform mobile applications) Your mission is to bring in premium clients, long-term contracts, and scalable project opportunities. Key Responsibilities: – Identify and secure high-ticket projects ($1,000 – $10,000+) – Source leads from platforms like Upwork, Freelancer, LinkedIn, and direct outreach – Craft highly personalized, conversion-focused proposals – Communicate with clients and understand technical requirements &n...

I am looking for a sharp Technical Job Hunter/Recruiter to help source and vet high-quality developers for my current and upcoming projects. I am building a high-performance team and need someone who can go beyond LinkedIn to find "hidden gem" developers who are technically proficient and culture-fits. ​Your goal is to find developers who specialize in modern stacks—specifically React, Node.js (MERN), , and Mobile (Flutter). ​Key Responsibilities ​Active Sourcing: Find and reach out to potential candidates on platforms like GitHub, Stack Overflow, LinkedIn, and specialized developer forums. ​Initial Screening: Conduct first-round filters to ensure candidates actually possess the coding skills they claim (checking portfolios and code repositories). ​Interview Scheduling: Coo...

Job Overview: We are seeking a highly skilled Senior ERP Developer with 5+ years of experience to design and build robust, scalable ERP solutions tailored for the manufacturing industry. The ideal candidate will have strong expertise in modern web technologies including React.js, Node.js, and NestJS, along with hands-on experience in both relational (SQL) and NoSQL (MongoDB) databases. In this role, you will be responsible for developing and enhancing ERP modules, contributing to system architecture, and ensuring high performance and reliability of applications. You will work closely with cross-functional teams to translate business requirements into technical solutions, with a strong focus on manufacturing workflows and enterprise-grade systems. Experience with cloud platforms such as AWS...

I am kicking off the development of a brand-new, bank-side web application and need a senior engineer who can own the stack end-to-end. The front end will run on React.js while the back end relies on Node.js, so you must be equally comfortable architecting RESTful APIs as you are crafting responsive, accessible UI components. This is a full-time, fully-remote role aimed at professionals with roughly 6–7 years of solid commercial experience in both technologies. You will design the initial technical architecture, set up the codebase, choose libraries, establish testing practices, and guide the project through to production. Clean code, security best practices, and scalability are non-negotiable given the banking context. Compensation is set at 18–20 LPA and the engagement is ...

My web application needs a thorough full-stack pass. Both the frontend and backend contain bugs that appear during normal user flows, and resolving these is the first priority. Right after stabilising the codebase, we will dive into new functionality: rolling out fresh features, polishing and extending existing ones, and wiring in selected third-party services. Feature work spans three fronts: user-interface improvements built in React (TypeScript), deeper backend logic in Node.js/Express, and new REST/GraphQL APIs that will be documented with OpenAPI. Everything lives in a GitHub repo with a Kanban board and CI pipeline; work happens on feature branches, merged by pull request with unit tests. Deliverables • Repaired critical and minor bugs recorded in the tracker • Updated ...