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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    112 trabalhos encontrados, preços em EUR

    Objetivo é criar um sistema de formulário dinâmico baseado em jsonscheme que ao final do preenchimento realize uma chamada soap para um fornecedor

    €19 / hr (Avg Bid)
    €19 / hr Média
    11 ofertas

    I need Gatsby Expert who can work on my project. I'm already a self developer but no time to finish this job myself. Will provide codebase to right candidate. Please apply with your proof of skills on Gatsby.

    €447 (Avg Bid)
    €447 Média
    17 ofertas

    I need you to build a simulation of this transaction in a sdk application made in react. All functions of the application are in the attached document, each function must generate a qrcode and perform a single transaction.

    €164 (Avg Bid)
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    10 ofertas
    Aplicación React Navite 6 dias left
    VERIFICADO

    Hay que realizar una aplicación mobile con React Navite. Obviamente, tiene que ser Android & IOS. Tiene que tener un administrador. Tendra registro de usuarios por facebook y gmail. Pagos con tarjeta. Uso de GPS. Dos niveles de usuarios... un usuario busca un servicio y lo contrata, el otro lo publica. El uso es parecido a Airbnb, pero mucho más chico y de otro tipo de servicio. ...

    €536 (Avg Bid)
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    32 ofertas

    here is the website [fazer login para ver a URL] Ui files are attached

    €820 (Avg Bid)
    €820 Média
    10 ofertas

    I have a project that I would like to be hosted backend on heroku and a front end possibly on github pages. I just need a basic set up so I can develop on top. I have the source code which may need changes just want someone that has done this before to do it quickly, shoule be simple if you have used Java EE and basic react/redux before. Repo is private on guthub but will add as a contributor if c...

    €42 (Avg Bid)
    €42 Média
    4 ofertas

    I Need an Experienced Ethereum Dapps Developer. Please see attaced image. Need to add a robust QR code scanner. Presently, it only scans from high resolution images. Need to scan the codes easily. You can use any plugins or any methods. The dapps is at [fazer login para ver a URL] Please bid. The source is in GITHUB. I will provide all necessary information as required.

    €546 (Avg Bid)
    €546 Média
    3 ofertas
    React JS Component 6 dias left
    VERIFICADO

    Impelement a dynamic React Component based on sample data and PSD

    €45 (Avg Bid)
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    24 ofertas

    My website is live on [fazer login para ver a URL] I would like make custom changes to the UI/UX along with enhancements to the Reactjs scripts. The UI is designed in Material-UI. Upon completion of the enhancements, you are expected to demonstrate the end to end enhancements are working. Note this is just a small part of the overall project. We would only grant the project to experienced devel...

    €133 (Avg Bid)
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    14 ofertas

    We have a iOS and Android app that is being built with React Native + MySQL(Heroku). We want to integrate text and image translation feature in this app. Our standard is Google Translate app(please check this app in Google Play Store). We don’t need conversation/handwriting translation, or argument display, but image(Camera) and text translation have to work perfectly. We are looking for e...

    €12 / hr (Avg Bid)
    €12 / hr Média
    13 ofertas

    We are looking for an experienced freelancer who can develop a food shopping app for customers. We also need the development of admin dashboard and owner dashboard to manage the app.

    €194 (Avg Bid)
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    34 ofertas

    Looking an expert in Java front end ,React js and Javascript

    €111 (Avg Bid)
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    13 ofertas

    MVP build for a functional front end of a social media/dating app. Requirements similar to Instagram/tinder. Swiping, API integration, building captcha with puzzle, profiles, creating events, chats, searching usernames, favorites.. etc

    €542 (Avg Bid)
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    27 ofertas
    Build a functionality 5 dias left
    VERIFICADO

    need to do validations for input for time entries and do a put req with required parameters

    €137 (Avg Bid)
    €137 Média
    34 ofertas
    Need an App Developer 5 dias left
    VERIFICADO

    i am looking for an App developer who can work in React Native for Hybrid App which will work in multiple platform. I need somebody from Chennai.

    €5 / hr (Avg Bid)
    €5 / hr Média
    5 ofertas
    Build a buy and sell website 5 dias left
    VERIFICADO

    I want to build a website with react (next js), redux , firebase and cloudinary. This website is to buy and sell vehicles. The project - Should have reusable components (input components, buttons, etc) - Website should be highly SEO friendly (when you use next its SEO friendly anyway) - Should have a strong search - Should be mobile responsive - Should have SSR - All the pages shou...

    €715 (Avg Bid)
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    15 ofertas

    I am going to make React website. This is first part of the site. Try to answer these questions. [fazer login para ver a URL] do you need to build this component? [fazer login para ver a URL] you build it with good design? Why? [fazer login para ver a URL] you finish the last part of the site?

    €31 / hr (Avg Bid)
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    31 ofertas

    Hi I am converting template from bootstrap to react nativ. The only problem is navbar toggle is not working in [fazer login para ver a URL] expert can do [fazer login para ver a URL]'t bid if you don't understand problem.

    €5 / hr (Avg Bid)
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    6 ofertas
    SPA, React.js Expert 5 dias left
    VERIFICADO

    We are going to develop website using react.js. We have base project and design and backend APIs are ready. Only full-time, experienced react.js developer is needed! Will consider serious bidders only! Thanks

    €466 (Avg Bid)
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    23 ofertas

    I want a Ruby on Rails devloper that can help me to develop chat application and deploy it on Digital Ocean server

    €18 / hr (Avg Bid)
    €18 / hr Média
    15 ofertas

    I need a new web application for a client. We already have wireframes ready. Technology to be used : Spring boot and ReactJs

    €89 (Avg Bid)
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    3 ofertas
    Build website using React.js 5 dias left
    VERIFICADO

    We have design and backend API. Need long term developer who has high skill in react.js, redux. Only full time, creative developer will be accepted. Let's start now!

    €468 (Avg Bid)
    €468 Média
    37 ofertas

    Hi, I need to implement an EPG view in one of my project and have been looking onto this source code which provides the EPG implementation in "React": [fazer login para ver a URL] I need similar component, but be written in React Native instead of React. If you are an experienced developer and have strong hold in React Native, it is just a day's job since all the things you need i...

    €61 (Avg Bid)
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    3 ofertas

    Our company need one ReactJS expert. Redux and PostgreSQL is bonus.

    €28 / hr (Avg Bid)
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    52 ofertas
    XD file to html and css 4 dias left
    VERIFICADO

    Hello I need someone to help me launch my website. I also looking for interns that is looking to grow in the company. React JS professionals and students are perfect.

    €130 (Avg Bid)
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    42 ofertas

    I have a Web app created in React/Node/Mysql that I want to convert to a React Native mobile application. I also want to add a Push Notification feature. The app has a calendar(react-big-calendar) that may need some functionality updates or New calendar altogether. I'm using stripe for payments so, the developer would need to link mobile payment with the web app.

    €518 (Avg Bid)
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    58 ofertas
    need react native expert. 4 dias left
    VERIFICADO

    i would like sell React Native project(live). if you have live project using react native, please write "React Native" in your proposal.

    €135 (Avg Bid)
    €135 Média
    6 ofertas

    Jest, Enzyme, and Cypress unit/integration test writing for react hooks.

    €22 (Avg Bid)
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    2 ofertas
    SPA, React.js developer! 4 dias left
    VERIFICADO

    We are going to develop website using react.js. We have base project and design and backend APIs are ready. Only full-time, experienced react.js developer is needed! Will consider serious bidders only! Thanks

    €557 (Avg Bid)
    €557 Média
    18 ofertas

    Jest, Enzyme, and Cypress unit/integration test writing for react hooks.

    €15 (Avg Bid)
    €15 Média
    2 ofertas
    React js website expert 4 dias left
    VERIFICADO

    Need react.js expert who can build website from design and backend API integration. Design and API are ready, I will provide you. Only expert who can work full time, immediately is preferred. Thanks

    €480 (Avg Bid)
    €480 Média
    50 ofertas

    I need to redesign a CRM Site - I can run through the current site. There will be some changes.. we will brief the change and provide wireframe.. you have to design and develop the whole site. Back end is MSSQL.. You have to work in our visual studio online team and push codes regularly.

    €441 (Avg Bid)
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    30 ofertas

    I need a ReactJS developer to create some razor views for an existing .net Core 2.2 application. Skills needed: HTML5, ReactJS, C#, Visual Studio, Kendo UI, .Net Core, Bootstrap 4, CSS, SQL Server

    €457 (Avg Bid)
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    34 ofertas

    Si tratta di una piattaforma di fantacalcio con front end in react js e backend in .NET/MSSQL. La persona interessata deve lavorare sulla parte js, miglioramenti grafici e pagine di admin. Ricerchiamo Programmatore Sviluppatore React Js ,Javascript e CSS per importante cliente in ambito frantacalcio. Requisiti: - Conoscenza completa di React.js e dei suoi principi fondamentali - Ottima conoscenz...

    €1041 (Avg Bid)
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    27 ofertas

    We are looking for an experienced React developer to help us design and develop the front end for our crowdfunding website. Requirements: Ideally familiar with Ant Design (antd) React framework, but those with knowledge of Material-UI and other popular React front end frameworks will also be considered Good knowledge of TypeScript 3.x+, especially async/await pattern and strong typing Experienc...

    €12 / hr (Avg Bid)
    €12 / hr Média
    73 ofertas

    Jest, Enzyme, and Cypress unit/integration test writing for react hooks.

    €22 (Avg Bid)
    €22 Média
    4 ofertas

    [PAKISTAN ONLY FROM KARACHI] Need React Native developer for an Uber-like app Office job in KARACHI P.E.C.H.S 6 Experts only please Monthly Package

    €452 (Avg Bid)
    €452 Média
    18 ofertas
    React js website developer 4 dias left
    VERIFICADO

    I need React.js expert who can build website from design and backend API integration. Design and API are ready, I will provide you. Only expert who can work full time, immediately is preferred. Thanks

    €453 (Avg Bid)
    €453 Média
    56 ofertas

    BUG fix. while passing data to using post request we get a cross error. this has to be fixed and made sure correct data is sent. using axios

    €95 (Avg Bid)
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    20 ofertas

    I'm looking for developers who are experienced with React Important that they understand concepts related to local storage, sync when online, etc., I have a few applications where I will need long-term work.

    €10 / hr (Avg Bid)
    €10 / hr Média
    24 ofertas

    Hi, I am looking for an experienced E-commerce Web Designer who has experience with UI/UX design. We have a backend application built using Magento 2.0 framework. We are looking for react js Front end designer to develop front-end application If you fit the above, please send over your portfolio and/or examples of you recent work along with your application.

    €351 (Avg Bid)
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    21 ofertas

    Hello. Expert Web Developers! I am going to make the large project with Node, Angular 2+ and React. I need to choose 2 developers. The awarded developers should be NDA sign. Please send me a portfolio with your projects made with Node, Angular 2+ and React? · Portfolio should include descriptions of projects, dates, your role, tasks. · Screenshots are important to make your portf...

    €2197 (Avg Bid)
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    53 ofertas
    React.js engineer 3 dias left
    VERIFICADO

    I need to build one website using React.js. Design and backend API are ready. You need to implement UI and integrate API. Only professional React.js developer is needed! I need to start it immediately. Thanks

    €490 (Avg Bid)
    €490 Média
    37 ofertas

    Hi Sergey. This is Carlita. do you remember [fazer login para ver a URL] We tested and reviewed your previous work - dice game, baccarat smart contract. Unfortunately, it doesn't work properly. Please come again and prove your works. Otherwise, I should file refund request. If you want to go ahead, then we can restart our contract here again. but must handle current issues. Regards

    €2139 (Avg Bid)
    €2139 Média
    23 ofertas

    *IMPORTANT NOTE* If you want to be considered for this opportunity, please send the following in your initial message: 1. Github Repository showing you have experience with React 16.8 and the React Hooks API 2. Resume 3. Portfolio About the Role: We have an existing codebase using the best React & NodeJS practices. We need a developer to work with our team to complete both frontend and backe...

    €13 / hr (Avg Bid)
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    35 ofertas

    We're working on a rich web application and need a react developer to integrate already developed APIs with the frontend and make changes in the UI of the project as asked.

    €98 (Avg Bid)
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    13 ofertas

    The website will have same functionality with a different design . It will be fast , flexible , responsive for all devices . I need also a good score for Google speed minimum 80 .

    €6443 (Avg Bid)
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    128 ofertas

    This project is very simple. The app is simply a website that runs in react. You are supposed to make the app communication through web-socket to a background service. EDIT:You will not make the background service, but it should be possible to simulate it by sending raw json strings to the client. EDIT:You also agree the code will be MIT Licenced. APP DESIGN When the user launches the page it is s...

    €51 (Avg Bid)
    €51 Média
    14 ofertas

    I need to build one website using React.js. Design and backend API are ready. You need to implement UI and integrate API. Only professional React.js developer is needed! I need to start it immediately. Thanks

    €484 (Avg Bid)
    €484 Média
    37 ofertas
    React.js expert needed! 3 dias left
    VERIFICADO

    Hi, I want only trustful, full-time, high skilled react.js developer. You need to implement UI and API integration. Only high skill expert should be welcome! Thanks

    €503 (Avg Bid)
    €503 Média
    39 ofertas

    Artigos da Comunidade dos Principais React.js