React.js is an efficient, declarative, and flexible open-source JavaScript library that is useful for developing user interfaces specially for single page apps. With React.js, users can build complex user interfaces from “components.” Components are small and isolated pieces of code.

React.js can also be used as a base in the building of both mobile and single-page apps. Although, complex React.js apps usually require additional libraries for interaction, routing, and state management with an API (Application programming interface).

React.js makes it possible for developers to design large web apps which can change data, without reloading the page.

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    117 jobs found, pricing in USD

    you should be an expert at react and your coding syle should be very clear and formated and code should be commented we will check your code consistently.

    $14 / hr (Avg Bid)
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    need a social, data collection and display website with multi level role mgmt and authorisations.

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    4+ Years of experience working with Ruby on Rails. Bootstrap 4, Postgres. Cloud hosting (Azure / Heroku). Must know how to integrate 3rd party apis including oAuth, Google Cloud APIs. Some of the technologies we use: - React.js - Ruby on Rails - Postgres - Redis - Elasticsearch - Codeship - Docker - Github - Heroku - AWS Questions: 1. Do you have suggestions to make this project run success...

    $33 / hr (Avg Bid)
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    ReactJs developer needed 6 days left
    VERIFIED

    Whole UI is developed basically. UI need more fixes, widgets as well as integrating testing json api.

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    5 bids

    I am looking for a professional mobile app developer. I need my project to be fixed and updated.

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    Looking for a ReactJS developer for a landing page. You should build it based on Create-React-App It's an urgent task. I will provide PSD design to the selected candidate. If you are an expert in ReactJS, pls send me your best works and applicants. This is a very very simple job and will take only few hour for the experienced developer. Budget is $20, need to be done within a day. Thanks.

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    React Developer need for Front End Development Need full time work. Spoken English. Details will be given after conversation.

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    My project was developed by react js. Current app was deopsited in cpanel. current site url is [login to view URL] I need to remove port number(:3000) in this url I want change to [login to view URL]

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    This is a traveling website dashboard admin area plus client back-and area and should be responsive. I'd like to have a website built in React. Send me some links that you developed before so that I can easily make a choice.

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    We are building a site in the React framework, we need an on-going front end software developer to help us build some parts of the website.

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    Simple react native setup 6 days left
    VERIFIED

    I have purchased a template for my project. I need to have certain parts integrated to make it functional. This is really a copy and paste kind of project in which you will send me back the results.

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    Creating a PWA 6 days left

    I want to create a PWA, only the frontend. The backend is already there and the API would be provided. The most critical part would be the creation of stopwatch functionality. Attached is the PDF with all the screens Please add samples of PWA you have worked on. Also, good conversational skills in English would be required.

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    What you will be doing: ● Taking ideas from concept to production ● Working with multiple cutting edge languages, frameworks and technologies ● Influencing the direction of our product and features ● Taking existing product feature requests and turning them into reality ● Brainstorming and helping define new ideas and products ● Building fault resilient, self-healing, high scale software on the ...

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    Featured
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    - Implementation of the tag - 2 conversion triggers (Signup, Purchase) - Analytics tag - Google Remarketing tag

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    - Implementation of the tag - 2 conversion triggers (Signup, Purchase) - Analytics tag - Google Remarketing tag

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    We are fast growing startup and looking for react guru can work with us longterm. Requirement: - proven developer with over 5 years experience - good communication skill(need meeting for project) - React/Redux skill - Bootstrap/Material - Mongo - AWS/Git/Heroku Please apply with your budget, estimate time and portfolio. Thanks.

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    Please post only if you have experience with PWA and React. This is an ERP solution for a restaurant with the option of online self-signup. Need to have compatible Andriod and Ios apps.

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    Build me a app 6 days left

    Restaurants finder with food ordering app having payment gateway

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    Our company is building algorithms for time-series predictions. We are working towards an MVP and we need a front end. Our backend works in Python and exports relevant results to S3 in Parquet format. We currently have a mock-up front end as the one that can be seen in the screenshot. Now we're looking to build the real thing. You will be given an S3 link with a parquet file containing time...

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    I am looking for developer who has good experience to Working with React-Native (Not ReactJS). I have ready running social website that developed in HTML5/JS with having the Java & MySql as backend. Developer need to use the same Java based web services into the React-Native to display all the data into the mobile same as my website. NOTE: Please don't bid any learner or beginner. Looking...

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    I want to redesign the frontend of my drupal site with ReactJS while the drupal will serve as the backend for the site.

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    The application must have: - Configuration (Configure the HTTP route and the Web API port where the web services will be) - Login (Remember password, recover password, tokens) - Main screen: * Search according to types * Search configuration. * Result in view groups. * Show images dynamically, returned by the web API. - Synchronization of the list of personalized contacts of the web ser...

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    Pet Daily HK 6 days left
    VERIFIED

    I need some changes to an existing website.

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    This is a personality type quiz. It requires weighted scores that are then calculated at the end of the quiz. It must be done in React or Wordpress. The Flow: 1. User visits the article and finds a button to take the quiz OR User is directed to the quiz page via external source (e.g Social Media) 2. New window opens and the user proceeds through taking the quiz. 3. At the end of the quiz the ...

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    Project consist of: Web application (with multi-language support) Ios & Android application ( with multi-language support) Applicants must have experience in building such project. Applicants must share admin/user access to test their marketplace project which they recently build. (No demo => dont apply)

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    I have successfully created react native app and its works perfectly from my windows machine with android phone. Now i have used same code in mac to run app in iOS device but i am getting error of maps with xcode 10. So my requirement : Need 1 dedicated person who can solve my react native maps issue and any other issue if it occurs while debug from xcode 10. Note - I have run same code on mac...

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    I'm looking for a professional developer who can develop a medium-sized project in react native, developer also need be familiar with working with backend developer. Short brief of the functions: Code design / design exists Forgot password Login / register user Possibility for a user to register data, which can be converted to pdf. Chat between users settings page some complex ca...

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    We have a project built with React Native that includes beautifying user from camera stream. We need to integrate a native open source code named KSYLive ([login to view URL]) into our app. Deliverables: - Can view/ stream with beauty effects directly from the camera (for both iOS and Android - open source for both is available). - The camera stream can be fed to the WebRTC stream to broadcast to...

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    Our company is in the project of building a logistics network platform to consolidate single shipments from each customer to fulfil the empty spaces of transportation providers. it is called SendByShare Platform. We are in the first stage of development, prototype. So we need a developer to work with us to work with our company concept. Job requirements: 1. Deliver the product on time 2. Have e...

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    I need a senior react developer for my project. Please include your best portfolios. This is full time position, so if you don't meet the requirements, please don't apply. You should be able to show me some code ( only few files ) for your portfolios. If it's not possible, you don't have to include that portfolio. I hate fake portfolios. Thanks

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    I need a senior react developer for my project. Please include your best portfolios. This is full time position, so if you don't meet the requirements, please don't apply.

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    54 bids

    We are a cryptocurrency startup that we are in busy to launch our ICO campaign in the middle of November. We urgently need Senior experienced MERN stack developers that can build up our ICO platform and MVP. Our timeline is a bit tight so we need to move fast with top developers. If you have strong experiences in Node, Express, React and Vue frameworks, please apply. We are gonna hire 2 or 3 devel...

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    Need a developer for 7 to 10 pages of an app to be made on react native. The job would include few front end changes and API integration. Need to start work asap.

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    As a developer myself, for over a year now i have been working on a project which includes a mobile application written in react native. During this year i also have been working on a backend written in nodejs which provides a RESTful API and which is used by this mobile application. Now that the first version of the mobile application is finalised, the client wants to extend this project/concept ...

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    MUSIC DATABASE WEB AP I have a partially built javascript music manager web app that I need completed. It is part of a music kiosk system. The music kiosks stream music from the music database. The web app manages the music database including song information. I am already able to upload songs one at a time. REQUIREMENT: 1. Install the existing web app on my server. 2. Create a facility to bulk...

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    I'm looking for a person who can modify our app that is built using Sharetribe. Please include sharetribe experience and your previous work in your message.

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    A react-electron project has been built, there are few issues that are to be dealt with.

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    It was a pleasure getting to know you and your background. Here is a brief description of the opportunity for this role. Job Description * Expert JavaScript coding skills and proficiency in developing single page applications * 3+ years of experience building commercial React web and React Native mobile applications for both iOS and Android * Strong understanding of mo...

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    Requirements: We want to setup backend for our Ionic app and Admin panel. Technology will be Node.js and MongoDB.

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    Improve react native - app 5 days left
    VERIFIED

    We are looking for someone with - At least 2 years of react- native development experience. - At least 20 hours / per week availability - Portfolio of react native app To improve an existing app - Add new features - Fix bugs - Improve app look & feel and design

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    Arduino board integration 5 days left
    VERIFIED

    About the project: This is a React project, I need make some modification, so it can upload codes to Arduino boards. Your mission: 1. Calling Arduino APIs, upload codes to the board. 2. Display Arduino boards connection status on the UI, and some other slight changes

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    We are looking for someone to join our development team for a short term project (with a potential for further projects). Working remotely is an option although it would be ideal if you would be able to work from our London office as well. The technology would include: -Node -React -Redux -AWS -Electron Initially we would like to create a cross platform electron tool that would authenticate wit...

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    I am a graphic designer & front end web developer in Africa and i need a backend software developer (web & mobile) to team up to kick start my creative agency am setting up. I will be taking on website and mobile software application projects and i need the services of a good backend software developer (web & mobile) i can rely on to work on the backend development. This isn't a ...

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    We are building a new Social Network Platform to sort and help all the needs any traveller might need. Localepal would be the new age Social platform with hassle free travel. We need a React native coder as our application has already been started and I have a small team to assist in the final Making of the application too . We need help in materialising those designs into a whole Application.

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    AR Video Camera ------------------------------- Here is our specification for this project. Please let me know your cost & time estimates for the milestones listed. We are looking to use sentimask or another library if you can reccommend something better or more cost effective for face replacement. Delivery: we need a react native module that wraps native code for both iOS and Android for th...

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    We are Lasting Dynamics, software house based in Torre del Greco, Italy. We are looking for a react developer, individual developer, for a long time collaboration, full time monday to friday, 9-18 CET, monthly salary. Main skills: react.js, redux saga Eventually skills: react native

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    We are in process of building a web app. Our current developer is sick So, we need a new full stack developer to come in and handle the project going forward. This is a long term opportunity to complete the web app and then possibly maintain it going forward. You should have atleaast 3 years of experience working with node.js, mongodb and react.js and be able to start right away. We are interes...

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    We have backend with ready REST APIs (with documentation). We would like to develop a MVP for few screens. Please share your REACT NATIVE work experience in the bids or in the chat.

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    Develop a new web service, “Neverwrote”, for managing virtual notes—The backend shall run on a Node.js server, and that the frontend shall be built with React. You will only need to work in the api/ directory (for the backend API) and the frontend/ directory (for the frontend interface). The NGINX server is already correctly configured, as are all of the Docker-related things, ...

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    Customisation of the front end developed in ReactJS. You will be asked to answer the following questions when submitting a proposal: 1) What is the difference between a controlled component and an uncontrolled component? 2) Difference between state and props?

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