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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    301 trabajados encontrados, precios en USD

    Nos encontramos desarrollando backend para una app , requerimos desarrollador para frontend de aplicacion movil y sitio web, que desarrolle con libreria react y react native, y que consuma apis de graphql.

    $1115 (Avg Bid)
    $1115 Oferta promedio
    21 ofertas

    Buenas, requiero una página web de noticias similar al de ([iniciar sesión para ver URL] ; [iniciar sesión para ver URL]) desarrollado con tecnologia Javascript, NodeJs, React. 1. Suscripción mensual para lectura de noticias 2. Lectura gratis pero con publicidad. 3. La web tenga AMP para mobile (Accelerated Mobile Pages). - No CMS, No Framework. - De preferencia algu...

    $487 (Avg Bid)
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    14 ofertas

    Busco una persona que pueda dedicar al menos 20 horas por semana para trabajar en un app MERN

    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    21 ofertas

    Necesitamos a un desarrollador/a que colabore con nuestro equipo en este y futuros proyectos. Para nosotros es importante la responsabilidad y compromiso. En este proyecto puntualmente estarás trabajando con las webRTC api en react js y node js. Gracias

    $763 (Avg Bid)
    $763 Oferta promedio
    5 ofertas

    Hello, I have a PWA in the ADULT dating industry. I need someone who is an expert at using Webpack bundle analyer and other tools to remove all unneeded javascript safely from a React PWA. Put the word "KOD" as the first word in your bid so i know you're not a bot, others will be ignored. Now offering a bonus for performance. **DO NOT APPLY IF YOU CAN'T WORK ON ADULT DATING S...

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    3 ofertas
    Build me a Web Application 6 días left
    VERIFICADO

    I need a web application that runs on a phone for a food company. Please include samples of your best mobile applications. I would like to avoid Uber, Doordash, and Grubhub by creating my own mobile solution. Include "Cr52n3" at the top of your proposal for consideration.

    $690 (Avg Bid)
    $690 Oferta promedio
    23 ofertas

    I would need a re-usual clickable button which shows a modal form containing input fields. It has to be a styled React component.

    $125 (Avg Bid)
    $125 Oferta promedio
    29 ofertas

    Hello, I have a PWA in the ADULT dating industry. I need someone who is an expert at using Webpack bundle analyer and other tools to remove all unneeded javascript safely from a React PWA. Put the word "KOD" as the first word in your bid so i know you're not a bot, others will be ignored. Now offering a bonus for performance. **DO NOT APPLY IF YOU CAN'T WORK ON ADULT DATING S...

    $27 / hr (Avg Bid)
    $27 / hr Oferta promedio
    4 ofertas

    Hello, I have a PWA in the ADULT dating industry. I need someone who is an expert at using Webpack bundle analyer and other tools to remove all unneeded javascript safely from a React PWA. Put the word "KOD" as the first word in your bid so i know you're not a bot Now offering a bonus for performance. **DO NOT APPLY IF YOU CAN'T WORK ON ADULT DATING SITES**

    $13 / hr (Avg Bid)
    $13 / hr Oferta promedio
    11 ofertas

    We are looking for React and React-Native developers who have proven experience in Firebase real-time database, GEO Location, MapBox Directions, etc. First of all, you will have the paid assessment test.

    $1223 (Avg Bid)
    $1223 Oferta promedio
    34 ofertas
    ReactJS and Android 6 días left
    VERIFICADO

    All I need is to complete the functions I missed on the website and android app. We will provide you with all your requirements and existing website and mobile app code. It must be completed within 2 days.

    $30 (Avg Bid)
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    5 ofertas

    ReactJs, NextJs and Tailwind css Developer needed to join the team for an immediate start. You will also be required to mentor the team on best practises.

    $490 (Avg Bid)
    $490 Oferta promedio
    11 ofertas

    Hey there! :) Our company (American company Interexy) is looking for an experienced React developer for working on a long-term project. - Experience 2.5+ (understading of react+javascript+cypress) - English level B1-B2 - Full-time It is necessary to fix bugs, refresh the website, app, do cypress and react testing, help with testing the app (made in React and JavaScript). Several advantages...

    $19 / hr (Avg Bid)
    $19 / hr Oferta promedio
    7 ofertas

    Hello, I am the co-founder of a healthcare startup, Hublo. We were 3 of us in 2017 and today we are over 60 employees. At Hublo, our goal is to bring smiles back to paramedics in hospitals and clinics by designing a replacement management application. Your mission, if you accept it, is to integrate one of our technical squads to accelerate the redesign of the web application. We only use the lat...

    $469 (Avg Bid)
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    10 ofertas

    A would like a blockchain developer with binance smart chain (BSC) / web3 / BEP20 / experience to build me a TradingView chart that uses data from a BSC BEP20 contract (for example safemoon 0x8076c74c5e3f5852037f31ff0093eeb8c8add8d3) The chart should look just like this: [iniciar sesión para ver URL] Being able to switch the chart between contract address would be a huge advantage. For e...

    $313 (Avg Bid)
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    8 ofertas

    Hi, I'm in need of a developer/team that can help me with a new business I'm about to buy. The whole business/website/backend is built with PHP, React JS, Javascript. This is a 2 part "job": 1) I need help in the Due Diligence period where we go through the website and backend to see if there are any flaws in the code. Furthermore takes notes on what we need to improve after I...

    $489 (Avg Bid)
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    17 ofertas

    Hello. I am looking for cucumber expert for longterm contract. I have simple test task - React/Cucumber for around 1 hours. If you are passed, I will contract with you and can discuss for monthly budget. Of course I will pay for test task. Looking forward to hearing from you.

    $725 (Avg Bid)
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    2 ofertas

    make changes to a react frontend and combine it with my backend. teach me mern stack.

    $274 (Avg Bid)
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    5 ofertas

    We are working on a project where we are using PHP CI as a backend and react over the frontend. We create APIs and call in react. We need another resource to work with us for 60 hrs a month so it is part-time as of now.

    $494 (Avg Bid)
    $494 Oferta promedio
    9 ofertas

    I need one developer who has good experience in Django and ReactJS. This developer will work alongside myself to create soft launch product for use by May 3rd. This application will be pushed to Microsoft Azure for hosting.

    $1077 (Avg Bid)
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    31 ofertas

    You will be designing and building out the UI/UX of our website, a search engine for the local retail inventory with social features. We're looking for someone who is obsessive over high quality effective UI/UX, a strong design acumen, an eye for detail, and excellent CSS skills. Haystack is a California-based start-up. We are revamping our product completely and aiming for a soft launch so...

    $426 (Avg Bid)
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    25 ofertas
    React Typescript custom stepping 6 días left
    VERIFICADO

    Build a custom step-by-step 3-page application. First page has two buttons. Second page - if yes show one form. Third and final page if submit then show the thank you. React - Typescript custom need, no plugin, no react-router, no useHistory nothing. Only do custom create a code. Step by step. I am looking for senior developer only.

    $8 - $20
    $8 - $20
    0 ofertas

    Need someone to write React Specs for long term. It will be a long term project. who can work as a part time job

    $20 - $166
    $20 - $166
    0 ofertas

    I have a project where someone need to write the test cases for that project. The project is pretty small.

    $100 (Avg Bid)
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    1 ofertas

    Hi Im currently using Offline Plugin to serve my service worker. I need a more performant setup using WorkBox ([iniciar sesión para ver URL]) Please only respond if you've used WorkBox. If I realize you dont know it you will be removed from the project immediately. Put the word ICE as the first word in your response so I know you read.

    $16 / hr (Avg Bid)
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    3 ofertas

    I have project in progress and my collegue could not work because of covid. and this is the urgent and big project... So i need new developer who specialized in JS based full stack.

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    6 ofertas

    Hi Im currently using Offline Plugin to serve my service worker. I need a more performant setup using WorkBox ([iniciar sesión para ver URL]) Please only respond if you've used WorkBox. If I realize you dont know it you will be removed from the project immediately. Put the word ICE as the first word in your response so I know you read.

    $158 (Avg Bid)
    $158 Oferta promedio
    7 ofertas

    Deployment of WEBAPP on Digital Ocean You have to connect back end to the front end - node assignments You have to be proficient in the following Node.js, React, TypeScript Back End uses thirdparty API : Segment, Stripe , Google MAPS API, WalkScore Max time anticipated for this project is 5 days. Only Response to this posting if and only if you meet the stack requirements.

    $145 (Avg Bid)
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    19 ofertas

    We have to develop powerful landing pages about introducing Our Company

    $500 (Avg Bid)
    $500 Oferta promedio
    3 ofertas

    Need to build multilingual iOS, Android apps + website + backend. Design is almost finished, need to add small features. Previous version of app - [iniciar sesión para ver URL] We need to rebuild from scratch + add quizes, wikiauto section. Description of apps and website: Main menu: Application main menu 1) Auto photo 2) Switch buttons 3) Ability to move buttons to the MY CARS page...

    $5167 (Avg Bid)
    $5167 Oferta promedio
    22 ofertas

    Set up real time messaging in app. Both group and private chats. Must use existing code. Authentication has already been set up. Primary focus to be put on realtime messaging and storing users messages in firebase. ADDITIONAL INFORMATION I am doing a group project and need help setting up the realtime messaging portion of the app. There is existing code you would have to work with. I need help ASA...

    $172 (Avg Bid)
    $172 Oferta promedio
    9 ofertas

    Looking for someone who has experience in ERP and supply chain software development. The system will be to track sales, invoicing, expenses, staff time tracking, payroll, customers, suppliers management, products, inventory tracking, reports, POS. Other things that are needed will be hardware integration and API integration (open maps, whatsapp, etc..). Currently the frontend page designs have b...

    $9690 (Avg Bid)
    $9690 Oferta promedio
    17 ofertas

    It's a new project being developed by an external team. I am looking for someone to take this project over when it it is finished development. This is a SaaS platform and will require ongoing management. - Stage one will require some setup and consultation. - Stage two will see it requiring AWS or alike infrastructure setup and initial deployment. - Stage three will require development of ...

    $24 / hr (Avg Bid)
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    63 ofertas

    I need an expert to teach me how to be a senior developer in a short period of time, this project is hourly based and i would like to finish it as soon as possible, you should have extensive practical experience and know how to teach

    $15 / hr (Avg Bid)
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    10 ofertas

    Need a basic truck booking system from truck unions. Need to be done in Django & React.js.

    $178 (Avg Bid)
    $178 Oferta promedio
    6 ofertas

    Set up real time messaging in app. Both group and private chats. Must use existing code. Authentication has already been set up. Primary focus to be put on realtime messaging and storing users messages in firebase. ADDITIONAL INFORMATION I am doing a group project and need help setting up the realtime messaging portion of the app. There is existing code you would have to work with. I need help ASA...

    $204 (Avg Bid)
    $204 Oferta promedio
    6 ofertas
    React Project 6 días left
    VERIFICADO

    Need to add notification icon Need to make list Must be able to work via anydesk and must be able to work right now. 20 minute task.

    $113 (Avg Bid)
    $113 Oferta promedio
    28 ofertas
    React Web development -- 2 6 días left
    VERIFICADO

    React web developer is required for a small project. User must have experience oi the auth 2 and authorization. API will be provided to develop the project. Freelancers must work between 9 AM to 5 PM PKT ( Pakistan standard time) because in that time period my backend developer will be available for any query.

    $13 / hr (Avg Bid)
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    37 ofertas
    Web Development 6 días left

    We need an experienced full stack freelancer developer for our web portal development who must have these skills. - Strong exposure to NodeJS and ReactJS is MUST. - Experience in integration of UI layer with backend API. - Experience working with RESTful APIs - Good understanding of advanced JavaScript libraries and frameworks. - Knowledge of modern authorization mechanisms, such as JSON Web Token...

    $417 (Avg Bid)
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    10 ofertas
    Looking for MERN stack developer 6 días left
    VERIFICADO

    Looking for full stack specialist. We need MERN stack developer with experience in [iniciar sesión para ver URL] This is long term position. European developer prefered.

    $9 / hr (Avg Bid)
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    19 ofertas

    Tasks would be done in Strapi/[iniciar sesión para ver URL] Please apply if you are good with: 1) Creating API Quries to Strapi (writing where filters) 2) Adding New bespoke routes. Apply only if you are competent in this area. Regards,

    $24 / hr (Avg Bid)
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    19 ofertas

    Hello Developers, We are a software company in India working with clients across the globe. We already have 15+ engineers working in the house and now looking for Flutter and React developers who can join us. The developer should have a minimum of 3 years of extensive hands-on experience in the same. So in your proposal, please share any top 3 app links you have developed individually. Initiall...

    $551 (Avg Bid)
    $551 Oferta promedio
    15 ofertas

    To rebuild the User interface of the Application X using ReactJS / Bootstrap & Spring Boot API for data access. More Details provided in the attachment.

    $39816 (Avg Bid)
    $39816 Oferta promedio
    7 ofertas
    Javascript Expert 6 días left
    VERIFICADO

    we are looking for a Javascript expert. this is a long-term position. we will choose a code ninja who has Strong skills.

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    15 ofertas

    We are looking for an experienced developer for a 3-6 month project. However, this contract can grow into long term position. Must be experienced with our stack. We are creating a web-based UI that enables remote operations of complex industrial field operations focused on intuitive, low-latency live streaming of aggregated data sets with layered analytics. Required Experience - 3+ Years Experi...

    $13 / hr (Avg Bid)
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    Should have at least 2 years experience on react js Must have a skills on HTML, CSS, JAVASCRIPT, ES6 FEATURE, REACT JS WITH REDUX Have to work up to 3 hrs a day and 5 days a week 3 months support required 20-22k/month will be paid only monthly basis.

    $748 (Avg Bid)
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    9 ofertas

    i have a project that already have the front end, I need help with building firebase APIs, we are using React, Node JS and firebase.

    $219 (Avg Bid)
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    21 ofertas
    NodeJS Developer 6 días left
    VERIFICADO

    We need a NodeJS developer to work on our project as a full time employee. The developer must have a minimum experience of 2 years in NodeJS and must be familiar with ReactJS and git. Monthly Salary range: 40,000 INR - 70,000 INR ($500 - $900)

    $771 (Avg Bid)
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    12 ofertas
    React Frontend Program 6 días left
    VERIFICADO

    Frontend program required below techniques - React - CoreUI - formik -Axios - SignalR - OIDC Client - Git Repository - Docker

    $11 / hr (Avg Bid)
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    35 ofertas

    hi, we are building an LMS, we are hiring you because we need someone to fasten the process. your job is the only teacher dashboard in react js and building necessary API for teacher dashboard only. our developers will do the remaining job. Requirements. Teacher login Create program, departments, courses- The teacher should be able to create classes and invite students to join, they can create ...

    $419 (Avg Bid)
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    Principales artículos de la comunidad React.js