Express JS is a web development framework for Node.js. It is used by developers and engineers to create robust and dynamic web applications quickly and efficiently. It provides out of the box features for web development such as routing, request management, and content negotiation. Express JS is built with scalability in mind and it is specifically designed for web and mobile back ends with minimal coding complexity. An Express JS Developer can provide clients with high-quality solutions for their business needs by leveraging the benefits of Express JS framework.

Express JS provides faster application development with its numerous built-in functionalities including routing and request management that simplifies communication between the server and the client. It also provides support for both HTTP and HTTPS protocols, which makes it suitable for any type of infrastructure or system requirements. Furthermore, it has built-in templating, which allows for better maintainability and portability of applications.

Here's some projects that our expert Express JS Developer made real:

  • Building personalized portfolio websites with an impressive visual presentation
  • Developing tools to support financial trading operations
  • Creating employee monitoring tools tailored to specific business needs
  • Securing backend services with advanced authentication techniques
  • Implementing APIs that facilitate data transmission between different services
  • Developing cross platform mobile applications
  • Setting up a DevOps environment to automate workflow processes

Our Express JS developers have developed solutions tailored to individual customer needs on Freelancer.com. Their expertise has allowed them to quickly build fully functional products to the highest standard regardless of the project complexity or size. By utilizing the benefits of Express JS our developers have created remarkable solutions that answer to customer needs perfectly, while minimizing the cost in terms of time and effort required.

If you have a web development project in mind, why not post your own project on Freelancer.com? We guarantee that you will be connected with an experienced Express JS Developer capable of realizing your vision quickly and efficiently. So why wait? Post your project now and join hundreds of satisfied customers served by our skilled freelance Express JS Developers here on Freelancer!

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    I'm having a problem setting up MongoDB with Node.js and need technical assistance. The exact version of Node.js I'm using has not been specified. I've also not specified a particular error message, so freelancers should be prepared for a variety of potential issues. Ideal skills and experiences: - Proficiency in Node.js and MongoDB. - Strong understanding of potential setup challenges - Experience solving setup issues with Node.js and MongoDB. Freelancers should cover the following areas in their proposal: - Highlight past work and experience - Submit a detailed project proposal, outlining a potential approach to resolving this issue. Please bear in mind that the exact Node.js version and error message has not been provided. By addressing these asp...

    €30 (Avg Bid)
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    I am seeking a highly skilled developer well-versed in Node.js, React.js, and Flutter to build an effective chat system for both a web browser and mobile application. The chat system's primary users will be customers, and as such, the chat interface should be clear, responsive, and user-friendly. Key Features: * Real-time messaging to facilitate quick and seamless communication between users. * Message encryption to ensure confidentiality of the messages sent and received. * Robust user authentication to provide secure access to the chat system. Ideally, you have significant experience in full-stack development, with particular focus in Node.js and React.js for the web part, and Flutter for the mobile application. You should also have a deep understanding of real-time databases, e...

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    I am seeking an experienced developer proficient in Node.js, nginx and bash scripting. The main tasks will involve: - Configuring nginx reverse proxy: The primary purpose of this configuration is to enable caching and data scraping. Your expertise on this matter is crucial to ensure optimum performance. - Bash Script Development: Ability to create robust and efficient bash scripts is required. For the nginx configuration, we will be implementing a unique caching strategy centered around data scraping. Hence, a strong understanding and experience in various caching strategies, particularly related to scraped data is imperative. Successful delivery of this project will require a strong understanding of server-side programming, excellent problem-solving skills, and experience in managing co...

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    **Overview:** We are looking for a highly skilled Node.js developer with extensive experience in web scraping using Puppeteer. The ideal candidate should have proven experience in bypassing captchas and optimizing scripts for efficient and parallel URL scraping. **Key Responsibilities:** - Enhance an existing Node.js script that utilizes Puppeteer for web scraping. - Implement robust solutions for bypassing various types of captchas encountered during the scraping process. - Optimize the script to enable parallel scraping of multiple URLs, ensuring high efficiency and minimal resource consumption. - Ensure the stability and reliability of the scraping process across different websites. - Collaborate with our team to understand specific scraping requirements and provide technical solution...

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    In need of a seasoned full stack developer with exemplary proficiency in JavaScript, React, Node.js, Express, and MongoDB. The project hinges on a variety of key components: - **Responsive design**: We require a highly responsive design that showcases versatility across multiple platforms and devices. - **User Authentication**: Implementation of a secure user authentication system is essential, and it needs to be facilitated using email and password logins. The ideal candidate should have a rich history of successfully developing and deploying similar projects using designated technologies. An appreciation for clear, concise code and neat documentation is highly beneficial. Proven experience in creating user-friendly interfaces conforming to responsive design principles is a must.

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    """" Automatic bids won't be considered """" I'm looking for an expert Express Js developer who is well-versed with the Svelte framework. This task is for an individual person only, companies don't bid here. I have a project which is already live. You need to add some new features in it. Key Requirements: - Mastery in Express Js is a must - Proficiency in using Svelte for full-stack development (both frontend and backend) - Developer should be good in English and Hindi language. - India-based (preferably) This is a time-sensitive project and the selected candidate is expected to meet the established deadline. This will be an excellent opportunity for someone who wants to showcase their technical expertise in Svelte and Express ...

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    """" Automatic bids won't be considered """" I'm looking for an expert Express Js developer who is well-versed with the Svelte framework. I have a project which is already live. You need to add some new features in it. Key Requirements: - Mastery in Express Js is a must - Proficiency in using Svelte for full-stack development (both frontend and backend) - Developer should be good in English and Hindi language. - India-based (preferably) This is a time-sensitive project and the selected candidate is expected to meet the established deadline. This will be an excellent opportunity for someone who wants to showcase their technical expertise in Svelte and Express Js.

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    """" Automatic bids won't be considered """" I'm looking for an expert Express Js developer who is well-versed with the Svelte framework. I have a project which is already live. You need to add some new features in it. Key Requirements: - Mastery in Express Js is a must - Proficiency in using Svelte for full-stack development (both frontend and backend) - Developer should be good in English and Hindi language. - India-based (preferably) This is a time-sensitive project and the selected candidate is expected to meet the established deadline. This will be an excellent opportunity for someone who wants to showcase their technical expertise in Svelte and Express Js.

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    I'm seeking a Node.js expert skilled in adding a crucial feature to our colour prediction gaming script, which operates on Node.js and EJS templates. The core addition involves crafting a popup that appears following the conclusion of a bet, detailing whether a user has won or lost. This popup should not only notify users about their betting outcomes but also supply comprehensive details concerning their game performance. **Key Requirements:** - Proficiency in Node.js & EJS templates. - Experience with gaming scripts preferred. - Capability to design user-friendly popups. **Specific Features to Implement:** 1. **Outcome Notification Popups:** - Triggered by bet conclusions. - Must provide a detailed summary of the betting outcome. 2. **Popup Content:** - The popup sh...

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    I'm looking to develop a comprehensive and user-friendly MERN stack application for my Kirana shop, that doesn't currently have an existing website. The aim is to automate, manage, and streamline multiple areas of my business operation. Key Features Required: - Inventory Tracking: Accurate, real-time stock levels, alerting for low stocks and predictive ordering. - Product Management: Easy addition and removal of products, with detailed product information. - Sales Management: Dynamic reporting and visualizations of sales, with trends and predictive analytics. - User Authentication: Secure sign-in for admins and users, with dynamic roles and permissions. - Billing and Invoicing: Hassle-free billing system, with automatic invoice generation. - Product Search and Filters: Robust ...

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    I'm seeking an adept freelancer to integrate PayTabs as the payment gateway into my current ReactJS application, which uses Firebase as a backend. This application requires the ability to handle one-time payments and hold the amount. To ensure a seamless process, I need someone who is not only familiar with PayTabs but also has a strong grasp of React and Firebase. Further information: The website is selling products website, it gives the seller the option to sell their product straight out or list it for auction. The transactions needed are as follows; if the product is listed for sale, the transaction is a normal purchase. If the product is listed for auction, the bidder must pay an amount to enter the auction, if the bidder is the highest bidder and the time expires, and the amoun...

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    I am in immediate need of an experienced NodeJS developer with a strong background in creating complex APIs, particularly those that involve intricate operations with multiple data sources. The perfect candidate will bring to the table a deep understanding of both building robust server-side logic and integrating NoSQL databases, specifically MongoDB. **Primary Responsibilities:** - Design and implement API endpoints for complex data interactions. - Ensure seamless integration with MongoDB for data storage and retrieval. - Implement server-side logic to handle requests efficiently. **Ideal Skills and Experience:** - Proven track record of building complex APIs using NodeJS. - Solid experience with MongoDB, including schema design and query optimization. - Strong understanding of server-s...

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    I am looking for someone who can help me deploy nodejs and mongoose database on firebase functions. I am getting some errors that I am unable to resolve while trying to deploy it. If someone can please help me resolve this

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    I'm searching for a MERN developer with expertise in MongoDB and Node.js to build a unique chat platform. This platform will connect users with astrologers and psychic readers, offering advice and readings at the click of a button. Key Responsibilities: - Designing and building a responsive and user-friendly chat platform - Using MongoDB and Node.js to ensure optimal performance Project Timeline: I'm aiming to have this platform up-and-running as soon as possible. Hence, I'm looking for someone who can dedicate their time and resources to this project in order to meet tight deadlines. Platform totally build on MERN, but unfortunately my last developer left at the last stage as he couldn't understood some last functionalities and gave SDK to me. Now I have everythin...

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    I'm looking for a seasoned developer who excels in developing both Web and Mobile applications using MongoDB and React JS. Key Tasks: - Create a robust database in MongoDB to store and retrieve procurement requirements of goods and services data. - Develop a front-end application in ReactJS that can enter procurement records and generate reports in various styles. - Ensure functionality for both Web and Mobile versions. Ideal Experience and Skills: - Proven experience in MongoDB and ReactJS. - Experience with procurement databases. - Strong data analysis skills. - Ability to develop apps cross-platform (Web/Mobile).

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    Seeking a talented and experienced Software Requirements Specifications Engineer, ERD Designer, and Roadmap Specialist to create a plan and blueprint for our developers, system administrator, and project manager to follow. Experience working closely with teams and developers to gather requirements, analyze business needs, and prioritize features is required. The website is in development and we are close to completing a minimal viable product using a MEVN stack: Mongo, Express, Vue3 (+Quasar), Node. There are 4 or 5 different SRS documents. I hired 2 project managers until I found the current person helping us out. The previous ones created their own SRS which was part of the reason they were let go.

    €18 / hr (Avg Bid)
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    Tengo un cierto avanze respecto al front end lo estoy realizando con reactjs y la idea es realizar tanto el front como el back con la pila MERN, ya tiene algunas características de PWA, me falta implementar la parte de notificaciones push, realizar una geolocalizacion ya sea con el api de Google maps o con otro framework ya sea leaflet para los lugares turísticos, ya tengo las imágenes insertadas en la parte del front son imágenes 360 y utilize la librería de panellumjs para insertarlos, también ya puede insertar algunos modelos 3d, pero quisiera insertarlos desde el backend es lo que me falta, ya el back lo quiciera realizar con nodejs, mongodb y expresas, en sí utilizar la pila MERN Stack

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    Tengo un cierto avanze respecto al front end lo estoy realizando con reactjs y la idea es realizar tanto el front como el back con la pila MERN, ya tiene algunas características de PWA, me falta implementar la parte de notificaciones push, realizar una geolocalizacion ya sea con el api de Google maps o con otro framework ya sea leaflet para los lugares turísticos, ya tengo las imágenes insertadas en la parte del front son imágenes 360 y utilize la librería de panellumjs para insertarlos, también ya puede insertar algunos modelos 3d, pero quisiera insertarlos desde el backend es lo que me falta, ya el back lo quiciera realizar con nodejs, mongodb y expresas, en sí utilizar la pila MERN Stack

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    I need a skilled Node.js developer to create an application that supports real-time data updates, create horizontally scalable user authentication AWS, maintain user balance, Key requirements: - Real-time data updates: use websocket, or uWebsockets, - File uploading: This feature should accept varied file types, from images and documents to videos. Should know react js, as frontend. And have a good experience. Should have basic knowledge of web3. Ideal Candidate: The perfect fit for this task is a developer with extensive experience in Node.js, react.js. Please include examples of similar projects you have completed when bidding.

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    I need an experienced developer to help me do this native Android app development with Nodejs backend to make live audio streaming. Nodejs and Android native(Android Studio) are required to have to do this project. Our current app: Frontend: Android studio with Java Backend: Nodejs with Current audio streaming using: Our app is like a voice club where our user can just create a voice room and a random person can join this voice club. Our app is working well with current audio streaming with Agora. But we don't want to use agora. We want to build our own WebRTC audio streaming in our VPS. So, what I need is I want to replace Agora in my application with a custom audio streaming server. Using Nodejs we will create the audio streaming server using webRTC. And then using express j...

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    *Front-end Developer Job Description:* We are seeking an experienced Front-end Developer with expertise in React Native to enhance the user experience of our mobile application. The ideal candidate should be proficient in optimizing various features and implementing lazy loading techniques. Additionally, they should be well-versed in integrating analytics data with visual charts and ensuring efficient deployment on both iOS and Android platforms. *Responsibilities:* Optimize Gallery feature by implementing lazy loading techniques in React Native. Enhance Home Page query performance through lazy loading on the front-end. Improve speed and efficiency of capturing and uploading photos/videos through the phone, including image compression and best practices. Integrate analytics data with re...

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    **Job Title: Full-Stack Developer Needed for MERN TypeScript Website with MySQL and Material UI** We are seeking a talented full-stack developer proficient in MERN stack (MongoDB, , React, Node.js) with TypeScript expertise. The ideal candidate will also have experience working with MySQL and Material UI for front-end design. **Requirements:** - Proficiency in MERN stack development - Strong TypeScript skills - Experience with MySQL database management - Familiarity with Material UI for front-end design - Ability to develop responsive websites **Responsibilities:** - Develop a website using MERN stack and TypeScript - Integrate MySQL database for backend operations - Implement Material UI for sleek and intuitive user interfaces - Ensure responsiveness across various devices and screen s...

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    Buscamos Devs 1 gün left

    Buscamos dev El interesado tiene que cumplir con las siguientes características: 1. Conocimiento en HTML CSS, JS, NODE y Git obligatorio 2. Valoramos que tenga conocimiento en Vue y/o React 3. El horario laboral es de 08:00 a 17:00 pero no es necesario estar activo las 8 horas. 4. Mientras se esté trabajando debe mantenerse activo en canal de voz Discord

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    I'm seeking a proficient MERN Stack Developer to create both web and mobile eCommerce applications. This involves developing a digital platform that fosters an engaging buying experience. Key Features: - Product Catalog: Users should be able to browse through various products. - Shopping Cart: Users should be able to add their chosen products to a virtual shopping cart. - Payment Gateway: The app should have a secure and reliable payment system for users. The ideal candidate should have experience in MERN Stack development, specifically with eCommerce applications. A deep understanding of React and Node.js with MongoDB for data storage is essential. They should be able to implement robust payment systems and design user-friendly interfaces. Knowledge of responsive web design for sea...

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    I'm in need of a seasoned MERN Stack developer with proficiency in MongoDB, Elasticsearch and Image Compression skills to create a comprehensive e-commerce platform. Key requirements include: - Proficiency in React.js, Node.js, , especially MongoDB. - Experience in building e-commerce platforms with functionalities such as product search and filters, payment gateway integration, user registration and profiles. - Enabling additional features like multilanguage support, multi-currency support, faster loading and product customization. - Understanding of image compression techniques crucial for improving the platform's loading speed and overall performance. -Also need a fully responsive webpage Your primary role will involve leveraging your MERN stack skills to develop...

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    Live Chat System Development (Phase One) A customer service system designed for receiving and sending text messages and images, integrating messages from various platforms such as web, Telegram, and FB Messenger. 1. Programming Language Requirements - The backend to be developed using Node.js + Express. - The frontend to be developed using VUEJS (Vue3), with a basic template provided for development. 2. Functionality Description - The backend name is controlled by .env and set during machine deployment. - Limit the number of customers that can be served at the same time, with this number controlled by .env and set during deployment. - The backend can be configured to enable translation; if enabled, it requires selecting the translation languages for the backend and the customer. - Integ...

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    I need developers for SEO tools Firebase required. and Node.js required github knowledge Knowledge of Google Search Console required, the developer will have to develop features with gsc and sitemaps and firebase Hourly work $5usd long term, ideally a year at least if the developer is productive. 4 hours a day so you can make it compatible with other projects

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    I'm seeking a skilled full-stack developer with proficiency in TypeScript, to bring to life a web application that is both robust and dynamic. The project will involve developing the front-end with React in TypeScript and the back-end with NestJS, also in TypeScript. A key component of this project is to ensure that the application is fully Dockerized, promoting efficiency and scalability. **Ideal Skills and Experience:** - Strong proficiency in TypeScript is mandatory. - Extensive experience with React for front-end development. - Solid background in NestJS for back-end services. - Demonstrable knowledge in Docker and containerization practices. - Familiarity with managing both front-end and back-end codebases in a unified repository, although I’m open to the developer’s...

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    I am in immediate need of a skilled ReactJS developer proficient with some knowledge of FastAPI and MongoDB to implement a module in my ongoing project. This module is a crucial addition, encompassing approximately 10-14 pages, including forms that interact directly with our already set up MongoDB database. **Key Requirements:** - **ReactJS Expertise:** You should have extensive experience with ReactJS, capable of translating wireframes into fully-functional, highly-responsive pages. - **FastAPI Knowledge:** A decent understanding of FastAPI is needed, as the backend of our project relies on it. While deep expertise in FastAPI is not a strict requirement, familiarity with its basics for minor tweaks or debugging is essential. - **MongoDB Experience:** Given that our database is already u...

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    I am currently seeking a proficient NodeJS backend developer with a solid understanding of the Express framework to help catapult my project to the next level. The selected candidate will be tasked with a variety of key responsibilities designed to enhance our application's backend functionalities. **Key Responsibilities:** -** Backend Work.**Developer should have good knowledge of NodeJs Developer and Express Framework - **API Development:** Design, develop, and maintain high-quality APIs to ensure seamless communication between the front-end and back-end components of our system. - **Authentication:** Implement robust authentication mechanisms to safeguard user data and ensure secure access to our system. - **Database Optimization:** Apply your expertise in MongoDB to optimize data...

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    I have a Application That works on the steem Blockchain to Do activities like Fetching Posts , Storing them in Database , Broadcasting Upvoting Transactions , Saving them on DB and Listening to Incoming Delegations and Saving them to DB . These were working perfectly but yesterday stopped , I would like to Make sure it is working and as well add Error Handlings

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    I'm looking for a knowledgeable full-stack developer who can take my existing e-commerce website to the next level. The website is built with React and Node.js with Express, and integrated with MySQL for data handling. Key features to put in place: - Product catalog and search functionality. - Shopping cart and checkout procedure. - Addition of other back-end functionalities and API integrations as needed. Another key aspect is integrating a payment gateway. Specifically, integration of Stripe for smooth and secure transactions is my preference. The desired candidate should have: - In-depth knowledge and experience with full-stack development. - Knowledge of React and Node.js. - Experience with Express and MySQL. - Proven ability with back-end functionalities, API integrations a...

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    website build -- 2 25 gün left
    ONAYLI

    I'm looking for React.js and Node.js expert. I'm going to build small website. Send message asap.

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