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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    113 trabajados encontrados, precios en USD

    Estamos buscando alguien que nos ayude a trabajar en las visualizaciones de una aplicación desarrollada en React Native. Las funciones de la aplicación ya están listas, necesitamos ayuda implementando las visualizaciones de las pantallas. Ya tenemos los diseños listos solo faltaría implementar. Especificaciones: -Cantidad de pantallas: 4 -Se trabaja...

    $193 (Avg Bid)
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    11 ofertas
    Mantencion Wapp programada en React 20 horas left
    VERIFICADO

    Poseo una aplicación programada en React, tengo el código y quiero hacerle algunos ajustes, ademas que su diseños es poco amigable pero funcional. Necesito una interfaz mucho mas intuitiva y con diseño que la haga ver mas moderna y de buen look. De preferencia un freelancer que hable español.

    $173 (Avg Bid)
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    12 ofertas

    Necesito quien me ayude a realizar unas mejoras y nuevos módulos a mi aplicación móvil hecha en React y React Native, consiste en recibir el código y mejorar algunos errores de desempeño y de funcionalidad de la aplicación.

    $19 / hr (Avg Bid)
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    15 ofertas
    Desarrollo aplicacion movil 8 horas left
    VERIFICADO

    Aplicación movil para conectar a usuarios con un mismo hobby y organizar reuniones. Contacto entre usuarios y tiendas especializadas para comprar productos, organizar eventos. Ranking de usuarios, valoraciones, items y grupos. Recursos gráficos ya generados, tareas ya definidas y backend ya implementado. Deseable en React u otro lenguaje comun para Android y iOS, pero es flexible. ...

    $729 (Avg Bid)
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    44 ofertas
    react js dev 6 días left
    VERIFICADO

    react js developers only please.

    $107 (Avg Bid)
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    12 ofertas

    Hello need help on react redux through webex only. Thanks

    $5 / hr (Avg Bid)
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    1 ofertas

    we have to build 2 react native apps (seller and user app) which shares the components prototypes are done in XD and web app is done in Ruby

    $1819 (Avg Bid)
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    10 ofertas

    We have a project built with React Native that needs beautifying user's face (applying skin smoothing, brightening..) from camera stream (with WebRTC backend built in Websocket/ [iniciar sesión para ver URL] + TURN/STUN ready). We want to integrate a native open source code named KSYLive ([iniciar sesión para ver URL] and [iniciar sesión para ver URL]) into our app (or ...

    $30 - $200
    $30 - $200
    0 ofertas

    need a senior react native developer. detail information will be provided over chat. thanks

    $85 (Avg Bid)
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    8 ofertas

    Hola ocupamos agregar a un proyecto existente las notificaciones con onesignal. Para iOS Y Android. Este es un proyecto de prueba para realizar otro más grande. Hello wee need to add to one existent project notification with onesignal. For iOS and Android. This is a test project to hire you for a bigger one Thanks.

    $22 (Avg Bid)
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    2 ofertas

    [iniciar sesión para ver URL]

    $21 / hr (Avg Bid)
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    8 ofertas

    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.

    $13 / hr (Avg Bid)
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    49 ofertas

    need a social, data collection and display website with multi level role mgmt and authorisations.

    $500 (Avg Bid)
    $500 Oferta Promedio
    2 ofertas

    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...

    $34 / hr (Avg Bid)
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    32 ofertas
    ReactJs developer needed 6 días left
    VERIFICADO

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

    $96 (Avg Bid)
    $96 Oferta Promedio
    7 ofertas

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

    $179 (Avg Bid)
    $179 Oferta Promedio
    46 ofertas
    Landing page development, React.js 6 días left
    VERIFICADO

    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.

    $24 (Avg Bid)
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    15 ofertas

    We are looking for a Software Engineer, familiar working with Blockchain (Ethereum) to take responsibility for developing cutting edge DApps. Requirements - Responsible for the development of new Blockchain based solutions as well as smart contracts (Ethereum). - Create tests to accompany produced code. - Write code with security and resiliency in mind. - Work in partnership with Web Serv...

    $4375 (Avg Bid)
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    22 ofertas

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

    $2269 (Avg Bid)
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    82 ofertas

    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.

    $1244 (Avg Bid)
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    63 ofertas

    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.

    $12 / hr (Avg Bid)
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    51 ofertas
    Simple react native setup 5 días left
    VERIFICADO

    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.

    $38 (Avg Bid)
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    13 ofertas
    Creating a PWA 5 días 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.

    $637 (Avg Bid)
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    9 ofertas

    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 ...

    $16 / hr (Avg Bid)
    Destacado
    $16 / hr Oferta Promedio
    44 ofertas

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

    $161 (Avg Bid)
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    9 ofertas

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

    $129 (Avg Bid)
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    2 ofertas

    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.

    $32 / hr (Avg Bid)
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    53 ofertas

    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.

    $10760 (Avg Bid)
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    22 ofertas
    Build me a app 5 días left

    Restaurants finder with food ordering app having payment gateway

    $767 (Avg Bid)
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    14 ofertas
    Front-end for time series data 5 días left
    VERIFICADO

    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...

    $252 (Avg Bid)
    $252 Oferta Promedio
    9 ofertas

    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...

    $540 (Avg Bid)
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    20 ofertas

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

    $217 (Avg Bid)
    $217 Oferta Promedio
    8 ofertas

    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...

    $1491 (Avg Bid)
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    69 ofertas
    Pet Daily HK 5 días left
    VERIFICADO

    I need some changes to an existing website.

    $147 (Avg Bid)
    $147 Oferta Promedio
    22 ofertas

    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 ...

    $144 (Avg Bid)
    $144 Oferta Promedio
    20 ofertas

    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)

    $19 / hr (Avg Bid)
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    72 ofertas

    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...

    $47 (Avg Bid)
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    2 ofertas
    Medium sized react native project 5 días left
    VERIFICADO

    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...

    $2481 (Avg Bid)
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    75 ofertas

    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...

    $14 / hr (Avg Bid)
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    54 ofertas

    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

    $20 / hr (Avg Bid)
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    48 ofertas

    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.

    $25 / hr (Avg Bid)
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    56 ofertas

    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...

    $35 / hr (Avg Bid)
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    37 ofertas

    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 ...

    $17 / hr (Avg Bid)
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    Javascript Music manager web app 5 días left
    VERIFICADO

    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...

    $683 (Avg Bid)
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    23 ofertas

    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.

    $21 / hr (Avg Bid)
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    27 ofertas

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

    $31 (Avg Bid)
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    6 ofertas

    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...

    $26 / hr (Avg Bid)
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    Requirements: We want to setup backend for our Ionic app and Admin panel. Technology will be Node.js and MongoDB.

    $544 (Avg Bid)
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    33 ofertas
    Improve react native - app 4 días left
    VERIFICADO

    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

    $1249 (Avg Bid)
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    89 ofertas
    Arduino board integration 4 días left
    VERIFICADO

    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

    $211 (Avg Bid)
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    Principales artículos de la comunidad React.js