Node.js is an open-source cross-platform JavaScript runtime environment that allows developers to easily deploy JavaScript based applications and services. Node.js is built on Chrome's V8 JavaScript engine and can be used to create server-side applications that are secure, scalable, fast and efficient. Node.js Developers have the skills to build secure and performant web applications that can handle large volumes of data in an efficient way.

A Node.js Developer is a skilled programmer with experience in building modern web applications that employ technologies such as Node.js, JavaScript, HTML5, and CSS3. Node.js Developers are responsible for developing server-side web applications, creating user interfaces for websites or web applications, and developing APIs for servers or browsers. These developers also create custom plugins and modules that extend the functionality of existing applications or websites.

Using Freelancer.com to recruit Node.js Developers highly skilled at developing web applications is a great way of getting the job done quickly and efficiently.

Here’s some projects that our expert node.js Developers made real:

  • Creating websites with complex functionalities
  • Hosting applications on cloud environments
  • Extracting text from scanned documents or images
  • Building web scrapers
  • Setting up chatbot integrated with OpenAI API
  • Developing user interfaces for websites
  • Developing APIs for server/clients
  • Setting up projects in PC

If you're searching for a Node.js Developer to join your team, hiring an experienced freelancer on Freelancer.com would be an ideal choice for completing your project quickly and efficiently with high quality results. It takes only minutes to post a project; after that you will be able to connect to potential freelancers who have the skills and experience needed for your projects. Hire a freelancer on Freelancer now!

Da 273,104 valutazioni, i clienti danno una valutazione ai nostri node.js Developers di 4.85 stelle su 5
Assumi node.js Developers

Filtro

Le mie ultime ricerche
Filtra per:
Budget
a
a
a
Tipo
Competenze
Lingue
    Stato del lavoro
    134 lavori trovati, prezzi in EUR
    Build Website 2 giorni left

    I want this type website

    €170 (Avg Bid)
    €170 Offerta media
    45 offerte

    I'm currently seeking an expert in MongoDB, Node.js, and Socket-IO. My application, specifically the aspect of data retrieval and display, is suffering from slow queries leading to suboptimal performance. Your task will include: 1. Identifying: Look into the current system and detect the exact spots causing delay. 2. Rectifying: Once detected, your task will be to rectify the problems and rewrite the slow queries. Skills and Experience • Strong knowledge of MongoDB, Node.js, and Socket-IO • Proven experience in optimizing database queries • Proficient in real-time applications, specifically dealing with data display and retrieval Please note that there's no maximum limit to the amount of data that should be retrieved and displayed without significant delay, so ...

    €11 / hr (Avg Bid)
    €11 / hr Offerta media
    15 offerte

    I'm in search of a developer proficient in PHP, React JS, and Python to help me create a dynamic and interactive web application. Key Responsibilities: - The main task will be website development, focusing on creating an interactive web application. Ideal Skills and Experience: - Proficiency in PHP, React JS, and Python. - Previous experience developing interactive web applications. - Understanding of UI/UX principles for crafting engaging user experiences. The web application will primarily serve as an interactive platform, so prior experience in developing similar applications will be a big plus.

    €167 (Avg Bid)
    €167 Offerta media
    55 offerte

    I'm seeking a proficient full stack developer, with particular expertise in using Spring Boot to develop robust and efficient APIs. The main goal for this project is to create integration endpoints, effectively linking rest API and Angular. Your experience with Postgres db XML and xslt will also be greatly utilized. This project requires: - Comprehensive understanding of Spring Boot and REST APIs - Strong knowledge and experience in Angular and Postgres db XML - Expertise in creating integration endpoints - Ability to work with rest API - Solid experience in working with XSLT Your responsibility will be to ensure that the API is properly integrated with rest API and Angular, contributing to the overall functionality of our platform.

    €467 (Avg Bid)
    €467 Offerta media
    92 offerte

    We're seeking an experienced developer company to help upgrade a state-of-the art startup MEMBERSHIP PLATFORM; website, iOS & Android apps, and admin panel. **OVERVIEW** The framework is built in versions that are several years old. For example Node JS 7.10.0 and MySQL 5.7.0. Everything needs to be updated to highest stable version that offers support and packages. For Node.Js that will likely be version 18 or 20 Moreover, this project offers an excellent opportunity for more development. **QUOTE: UPGRADE** -Please provide a quote for upgrade of website, iOS & Android apps, and admin panel. -The Framework described below. -Specify team size and roles. -Time frame for completion. **PLATFORM FRAMEWORK & DETAILS** Framework: React, Node, Express, React Native Frontend: ...

    €3865 (Avg Bid)
    A tempo pieno NDA
    €3865 Offerta media
    93 offerte

    I'm in need of a skillful developer who is proficient in Flutter app development and Full-stack development (Node.js and Flutter). The primary task of this project is to help with integrating backend services with a pre-existing mobile application. The scope of the project entails: - Full integration of backend services - Ensuring seamless integration on both Android and iOS - Streamlining the end-to-end communication within the app If you're experienced in both Node.js development and Flutter app development, this project is for you. Solid work history showcasing previous backend integrations on both Android and iOS platforms is highly desirable. Get in touch if you can bring good work-ethics, time management, and problem-solving skills to this project. Looking forward to wor...

    €118 (Avg Bid)
    €118 Offerta media
    17 offerte
    MongoDB Performance Improvement 1 giorno left
    VERIFICATO

    I'm experiencing considerable performance issues with my Linux server due to MongoDB services using up 100% of the CPU. The server is running MongoDB 4.2 and its primary use is for real-time processing. Key tasks will involve: - Identifying the root cause of resource overuse - Implementing a solution to reduce CPU utilization - Ensuring optimal server performance post-intervention Ideal skills would involve a deep understanding of MongoDB, its intricacies across versions (particularly 4.2), and real-time processing applications. Familiarity with Linux server management is essential. The end goal is a well functioning server where the MongoDB services operate at their full potential without using up 100% CPU. I am using SocketIO API with Nodejs for backend

    €8 / hr (Avg Bid)
    €8 / hr Offerta media
    11 offerte
    Marketplace b2b immo 1 giorno left
    VERIFICATO

    Objectifs du Projet - Construire une plateforme qui facilite les transactions immobilières B2B. - Simplifier la transmission d'informations pour accélérer les décisions des acheteurs et vendeurs. - Fournir une interface intuitive pour connecter efficacement les propriétaires d'immobilier avec des investisseurs et des entreprises. ### Fonctionnalités Clés #### Interface Utilisateur (Frontend) - **Page d'Accueil** : Présente clairement les différentes catégories de biens (terrains, bureaux, industriels, etc.). - **Fonctions de Recherche et Filtrage** : Capacités avancées pour chercher des biens par type, localisation, prix, etc. - **Pages des Propriétés** : Affichent des informat...

    €513 (Avg Bid)
    €513 Offerta media
    45 offerte
    React Native QR Code App Developer 1 giorno left
    VERIFICATO

    I am in need of an experienced React Native developer to build a mobile app compatible with both Android and iOS. The primary functionality of the app will be QR code generation and scanning. It needs a way to generate unique QR codes and accurately scan them. User authentication is also essential to this project. The app should allow creating users with login ad password and allow them to log in to scan qr code. Ideal skills for this job: - Proven experience with React Native - Knowledge of QR code generation and scanning - Experience building secure authentication systems

    €581 (Avg Bid)
    €581 Offerta media
    220 offerte

    I'm looking to build a loyalty app that can be utilized across multiple industries. While I've missed providing specific features, target audience, and user interaction details, my aim is to create a versatile SaaS solution. with same idea in Key requirements: - Development of a user-friendly, scalable, and secure loyalty SaaS platform - Integration of points-based reward system - Provision of customer analytics and insights for business owners - Consideration of various target audiences including retail, restaurants, and service providers - User-friendly interface for both customers and business owners - Integration with Apple wallet and Samsung pay The ideal freelancer for this project would have: - Proficiency in SaaS software development, particularly within th...

    €1432 (Avg Bid)
    €1432 Offerta media
    151 offerte
    Dark/Light Toggle Icon for Website 1 giorno left
    VERIFICATO

    I'm looking for a skilled programmer to add a dark/light toggle icon feature into the documentation section of my website. It's a MERN stack website, and the primary purpose of this feature is to enhance readability. Ideal candidates for this project should: - Have experience with MERN stack - Demonstrate previous relevant work in their proposal Please include samples of your past work in your application. Thank you!

    €10 / hr (Avg Bid)
    €10 / hr Offerta media
    28 offerte

    I'm in need of a skilled Node.js developer to assist in the creation of a RESTful API. The API will be used as the backend for a web application. Key tasks include: - Developing a high-quality, efficient, and maintainable RESTful API using Node.js - Ensuring the API smoothly integrates with the database The ideal candidate should have: - Proficiency in Node.js - Expertise in API development, specifically RESTful APIs - Experience with database integration - Understanding of web applications and their backend systems Please note that the API will play a crucial role in the application's functionality, so it's important that the developer has a keen eye for detail and a commitment to building a robust, scalable solution.

    €98 (Avg Bid)
    €98 Offerta media
    37 offerte
    Need Help with Cal.com custom style 1 giorno left
    VERIFICATO

    so i have selfhosted this and i need something like this in between u just need to change style/css of radio form to look something like that package image

    €9 (Avg Bid)
    €9 Offerta media
    7 offerte

    Hello Team, I have a nodejs (ExpressJs) app which is running on 3000 port on AWS EC2 ubuntu server, I want to implement the load balancing in the app so that my app can utilize the available cores of the CPU, I have two vcpu in my virtual machine. The app involved realtime communication usng , this is working fine when I use pm2 without cluster mode. But when I start the pm2 in cluster mode then my connection doesnt work and sometime it work and soemtime it doesnt work. I need a person who have done this implementation befoe so that work fine with pm2 cluster mode. I will not be able to provide you the code however you can guide me or take the remote access to solve this issue.

    €110 (Avg Bid)
    €110 Offerta media
    18 offerte

    I'm looking for an experienced Full Stack Developer for Android and iOS apps with all its requermets(front and back). The goal is to develop an app similar to [this one] - - just with different ui ***prefered use flutter on the app Additionally, the ideal candidate should be capable of meeting deadlines and delivering a fully functional and bug-free application. Upon application, please provide your estimated project duration.

    €2154 (Avg Bid)
    €2154 Offerta media
    221 offerte

    Necesito hacer un Web scrapping a una página de consultas y posterior consumir esos datos como API

    €43 (Avg Bid)
    €43 Offerta media
    17 offerte

    E-comerce hecha con React, Tailwind CSS , Framer Motion y cuenta con un chatbot con IA como asistente virtual En el Backend cuenta con una base de datos SQL y node Js y Javascript para la conexión a la BD Tiene una auténticacion de usuarios Y cuenta con integración a MercadoPago

    €19 / hr (Avg Bid)
    €19 / hr Offerta media
    26 offerte

    I'm looking for a skilled developer with strong expertise in Python, JavaScript, , and Node.js. This project involves enhancing our MiningWeb platform. Key Tasks: - Implementing user authentication features - Improving data visualization capabilities - Optimizing the platform's performance This is a great opportunity for someone passionate about blockchain and crypto and looking to take on a challenging and rewarding project. The work is fully remote and offers competitive compensation. Ideal Skills Include: - Proficiency in Python, JavaScript, , and Node.js - Prior experience with user authentication, data visualization, and performance optimization - Strong understanding of blockchain and crypto technologies - Self-motivated and able to work effectively in a remote setting

    €33 / hr (Avg Bid)
    €33 / hr Offerta media
    63 offerte

    I am in need of a skilled developer who can configure my website. It's crucial that you have experience with the Bustabit repository given its already installed. Here's what needs to be done: 1. **Testnet Bitcoin Integration**: I need you to create a new Testnet Bitcoin account for me. This integration is critical to test all functions of the website. It's quite important that you understand the intricacies of Bitcoin Testnet. 2. **Recaptcha Connection**: You'll need to connect Recaptcha using an API key. The main function of this feature will be to prevent bot activities on the site. Experience with implementing and optimizing Recaptcha is paramount. 3. **Investment Option**: Users need to have option to deposit in to the site bankroll. already has this feature, ...

    €50 (Avg Bid)
    €50 Offerta media
    23 offerte

    I am seeking an experienced developer who is well-versed in React JS and Node JS for the development of an e-commerce platform. This platform will be designed to support a range of e-commerce functions, with the main focus being on product search and filter options. Key responsibilities & requirements: - Proficiency in React JS for front-end development - Experience with Node JS for back-end development - Strong understanding of e-commerce structures and functionalities - Ability to integrate user-friendly product search and filter options The ideal candidate should be someone who has not only the technical expertise, but also the vision and creativity to enhance the user experience through these key functionalities. A portfolio showcasing previous e-commerce projects would be a s...

    €637 (Avg Bid)
    €637 Offerta media
    251 offerte

    I want to recreate the website using different data sources and a new design. The key features I need are: - Live Data Updates: The website should be able to update data in real time. - Social Sharing Buttons: The site should have easy-to-use social sharing options. As for the design, I am open to suggestions but most importantly, I need it to be user friendly and visually appealing. Ideally, you should have the following skills and experience: - Proficiency in web development - Experience in working with live data sources - Design skills, particularly in user interface and user experience Please provide examples of similar projects you've worked on in the past when you apply.

    €299 (Avg Bid)
    €299 Offerta media
    52 offerte
    Support Service 14 ore left
    VERIFICATO

    SCOPE OF SERVICE Support Service for cases of massive crashes of the ElasticSearch Search Platform (NodeJs + ElasticSearch). It must cover critical outages of Search Services outside of business hours, weekends and holidays (see details). The service must also include preventive analysis that will allow us to establish whether the platform is “healthy” in order to reduce these types of events. DETAIL OF EXTENDED SUPPORT The Extended Support service will have the following scope: • Support Hours: Monday to Friday from 18:00 to 23:00 and Saturdays, Sundays and Holidays from 9:00 to 23:00. The service will cover the resolution of critical incidents (service outage) in this time slot. • The committed SLA, for this time slot, will be 3 hours from the report sent from ou...

    €1130 (Avg Bid)
    €1130 Offerta media
    51 offerte
    Node.js Backend Developer Needed 14 ore left
    VERIFICATO

    I am in need of a skilled backend developer with expertise in JavaScript and specifically Node.js. The project you'll be working on is focused on building an API. Key Requirements: - Proficiency in JavaScript and Node.js - Significant experience in building APIs - Strong problem-solving skills and ability to work independently It would be a bonus if you also have experience with: - - Any other relevant backend technologies Please note that you will be working solely on the backend part of the project, so an understanding of RESTful API design principles is vital. Your responsibility will be to handle requests from the frontend, process data, and send responses back to the client. If you're a backend developer with a knack for problem solving, this could be a great fit. Looki...

    €670 (Avg Bid)
    €670 Offerta media
    52 offerte

    I've a custom built application that primarily uses node.js for the backend. My payment gateway is Worldpay for which I've set a callback for the settlement process. However, the issue lies in the processing of the callback response - the current processing is incorrect and needs to be fixed. Key Tasks & Skills: - Debugging: Diagnosing the incorrect processing of the callback response. - API Integration: Expertise in integrating Worldpay's settlement callback correctly. - Node.js: Proficiency in node.js is essential to understand and troubleshoot the existing code. The ideal candidate for this project should have a strong background in node.js, previous experience in Worldpay integration, and a solid understanding of API callbacks. You should be able to quickly identif...

    €175 (Avg Bid)
    €175 Offerta media
    42 offerte

    Hello, I am currently facing a challenge in accessing a specific website, , from my domain or through a proxy. I prefer not to expose my IPs directly to this website. Unfortunately, I am unable to access the site due to its geographical restrictions, as it is only accessible from within Italy. I require a solution that involves setting up a proxy. I will provide the proxy details via private message. The primary objective is to access the site without direct exposure of our IPs. Additionally, the website has a CORS (Cross-Origin Resource Sharing) policy that prevents third-party domains or IPs from accessing it. However, when I configure the proxy settings directly in the browser, it works perfectly. The requirement is to write a script either in Node.js or Python, which should run on ...

    €149 (Avg Bid)
    €149 Offerta media
    32 offerte
    Python Bot Website Integration 8 ore left
    VERIFICATO

    Looking for a skilled developer proficient in Python, Node.js, Postgresql, and Next.js. The project involves integrating an existing Python bot into a website to automate product data input. Key requirements: -Bot Integration: Seamlessly integrate the Python bot with the website's Node.js backend and frontend. -Automated Data Input: Ensure the bot reliably inputs product-related data, leveraging expertise in Postgresql for database management. -Error Handling: Implement automatic bug reporting in case of data input errors. If you have relevant experience in bot integration and database management, please submit your bid.

    €233 - €698
    Sigillata
    €233 - €698
    87 offerte

    I'm looking for a skilled developer who is experienced in both React.js and Node.js to implement an Echart tree diagram in our application. Our project has specific requirements that you need to keep in mind: - Customizable node color and style: I need the freedom to customize the color and style of individual nodes within the tree structure. - Ability to handle large data sets: The tree diagram should be able to efficiently represent and navigate through large amounts of data without sacrificing performance. - Interactive features like drag and drop: The diagram should support interactive features such as drag and drop. The main objective of implementing the Echart tree diagram is to help us in: - Visualizing hierarchical data: The tree diagram should help us represent and under...

    €155 (Avg Bid)
    €155 Offerta media
    105 offerte

    I am in need of a specialist capable of customizing and setting up a pre-developed Pixasocial project from Evento for me. Key Tasks Involve: - Changing theme colors to align with my branding - Setting up the project on my preferred Linux VPS server - Implementing necessary third-party integrations (specifics will be discussed later on) Ideal skills needed for this project include: - Familiarity with Pixasocial - Experience in system server setup (specifically, Linux servers) my devops will help on this - Knowledge of third-party integration Please include relevant experiences in your proposal. Your expertise in these areas will be a deciding factor in my selection. Thanks!

    €81 (Avg Bid)
    €81 Offerta media
    12 offerte

    I'm in need of a comprehensive bus booking website with an integrated backend. Key Features: - A powerful search and filter option. - A flexible seat selection and booking module that is automatically timed to cease operations 30 minutes before a bus's departure. - A stable real-time backend dashboard that displays booked seats, preventing double reservations. - Site should support a minimum fleet of 5 buses at any given time. Seat Booking Functionality: - Cessation of seat booking ability 30 minutes before the departure time of any bus. - Availability of a minimum of 5 buses. - The backend should visually represent booked seats and prevent duplications. Bus Display Information: - The departure time and location of each bus. - The arrival time and location of each bus. Ideal...

    €138 (Avg Bid)
    €138 Offerta media
    24 offerte
    Heroku Backend Specialist Needed Sta terminando left
    VERIFICATO

    I'm in need of an experienced professional who can help maintain and deploy API backend applications using Heroku software. I'm specifically seeking someone familiar with the nuances of the Heroku platform. Key responsibilities include: - Deploying API backend applications on Heroku The ideal freelancer: - Has extensive experience with Heroku - Has a deep understanding of API backend - Can navigate and troubleshoot Heroku software effectively - Understands the specific considerations needed for deploying applications on Heroku. Overall, I'm seeking proficiency in creating and maintaining stable deployments on Heroku. Ensure you can handle these responsibilities before placing your bid.

    €141 (Avg Bid)
    €141 Offerta media
    34 offerte

    I am looking to build a cutting-edge online casino website featuring progressive jackpot slot games and incorporating cryptocurrency transactions. Here are my requirements: - Implement a variety of exciting and engaging slot variants with a focus on progressive jackpot slot machines. - The website should be designed to support cryptocurrency transactions, offering an innovative and secure way for users to enjoy their gaming experience. An ideal candidate should: - Have experience developing betting websites, particularly online casinos. - Show a strong understanding and knowledge of integrating cryptocurrency payments. - Be experienced in designing engaging and successful slot machine games, specifically progressive jackpot slots.

    €36 / hr (Avg Bid)
    €36 / hr Offerta media
    29 offerte
    Copy http type Terminato left

    Use React and Javascript. Google Books API. Dockerize your Google Books app. Test the app from the container and make sure that everything works as expected. Compose a report that provides detailed steps... (Budget: €250 - €750 EUR, Jobs: Java, JavaScript, Node.js, Software Architecture, Test Automation)

    €485 (Avg Bid)
    €485 Offerta media
    26 offerte

    The main goal is to provide companies the tool they need to use WhatsApp as a collaborative way to communicate with their customers without need to go with WhatsApp pro API. The administrator needs to be able to add or delete agents The administrator needs to be able to add or delete phone numbers and will be able to scan QR codes if the WhatsApp solution needs it. The only setting needed at the moment for the administrator is to choose if all agents can see all conversations or if agents can see only their own conversations. Admin should also choose if the incoming conversation with no agents assigned should be assigned in a round-robin or if manually assigned. The administrator can create e quick answer that could be used into chats We will provide frontend design for Chat and other pa...

    €551 (Avg Bid)
    €551 Offerta media
    98 offerte

    Articoli consigliati per te

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Learn how to find and work with a top-rated Google Chrome Developer for your project today!
    15 MIN READ
    Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.
    15 MIN READ