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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    205 trabajados encontrados, precios en USD

    Deseo modificar una aplicacion android a nivel de programacion y a nivel visual. Es un proyecto de fiscalizacion de vehiculos. Ya la aplicacion esta hecha solo hay que modificarle algunas cosas y adicionarle algunas mas. Esta hecha en react native.

    $534 (Avg Bid)
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    Necesito un experto en openalyers para un proyecto sencillo. Necsito ayuda con un proyecto que esta empezado. Si además sabe de openlayers perfecto.

    $338 (Avg Bid)
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    5 ofertas

    El proyecto solo es cambiar nombre, logos, colores e instalar aplicacion hecha en React y Redux para iOS y Android - Instalacion es crear la base de datos en Firebase y conocimientos en Google API Accounts para usar google maps - Subir las aplicaciones a Play Store y Apple Store

    $211 (Avg Bid)
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    We need an experienced and very skilled React Native developer to join our development team on a full time and long term basis. You need to be able to both contribute to our existing React Native apps and to be able to start new projects from scratch. Good knowledge in javascript, react native, java and objective c is a requirement. You need to have access to a Mac, iPhone and Android as well as a stable and fast internet connection to be able to develop and test the apps.

    $35 / hr (Avg Bid)
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    Hi I am looking for a JS developer that can pass the JEST testing. Let me know if you are familiar with JEST library in React.js Thanks a lot.

    $13 / hr (Avg Bid)
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    11 ofertas

    I have an API connection but it is not working any more.

    $173 (Avg Bid)
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    27 ofertas
    Multiple JS Developers wanted 6 días left
    VERIFICADO

    Hi, we're looking for our new SaaS product JS/react/NodeJS/ExpressJS etc. Developers. We have already the complete front design, so we need mostly backend developers. Please only apply if: - Experience with complex applications and DB's - High code Quality + Documentation - Understanding English - Experience with GIT / working in a Team - Mention 01110 in your proposal Quality over Quantity.

    $32 / hr (Avg Bid)
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    Whatsapp API implementation 6 días left
    VERIFICADO

    Looking for Whatsapp unofficial API implementation

    $210 (Avg Bid)
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    Submit answers in your proposal please Please take your time and answer to following questions Note this is a long term project 1. can you develop an app for IOS ? 2. can you develop an app on android 3. Did you ever LIST apps on app store the app for IOS and Android ? 4. can you take a template and remodel it? change location of boxes, charts, etc... 5. Did you install a react js template on a dedicated server WHM /CPANEL on a subdomain? 6. How many hours can you dedicate per week 7. How many hours can you dedicate per day? 8. When can you start? 9. I require 1 conference call per week to talk about project updates etc via VIBER app. Do you have a smartphone that can install this app ? 10. How many years of REACT dev experience do you have ? 11. are you ok to work for 12/h...

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    10+ years software development experience 5+ years deep experience with NodeJS / Express 3+ years experience with MongoDB Experience designing and building RESTful APIs Experience with the DevOps mindset, Continuous Delivery and test driven development Fluency with GIT Experience with AWS Experience with Frontend ReactJS is a big plus

    $73 / hr (Avg Bid)
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    Español: Se necesita desarrollar una pagina web informativa para una empresa de tecnología. Sera 100% informativa a excepción de un modulo para enviar un correo en contactanos, de resto serán puras vistas y redireccionamientos. - La pagina debe realizarse en react y tailwind (Responsive). - Se debe crear un diseño utilizando los colores del logo que se le va a proveer al que acepte el proyecto. - La pagina debe deslizar al hacer click en alguno de los botones (Contactanos, servicios, acerca de, etc), todo el contenido debe estar en la pagina principal - Botones de redes sociales en el header o footer - Cambio de idioma Español/ingles - Boton para subir del todo hacia arriba, para contactar por whatsapp y para enviar correo Ejemplos: para to...

    $202 (Avg Bid)
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    29 ofertas
    Full stack developer required 6 días left
    VERIFICADO

    We are looking for a motivated Full stack developer and You will work collaboratively with team of Full stack Engineers and UI/UX/ Experts to roll-out the solution. Who we’re interested in: • Must be able to work independently and remotely in an agile manner and his capable of meeting strict timelines. • Must be able to think out of the box and pays attention to details • Experience using JavaScript, CSS, and HTML5 • Must have experience with React/ Angular/Java/PHP, Python/Django framework • Experience with REST API’s. You’ve hookup and used an API with a web frontend before. • Worked with mysql and redis

    $32 / hr (Avg Bid)
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    1. Leave the code clean and with instructions for any DEV to do maintenance and other improvements. 2. Integrate the game engine with the backend 3. Include the financial area and agent accounts 4. Apply the multi-site role so that we can label the agents. done that I'm ready to start, send with your proposal the secrecy and confidentiality clause

    $1173 (Avg Bid)
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    I am looking for a MERN stack engineer who can help us develop new features and regular maintenance on the existing Gym management software. SQL, Spring experience would be helpful.

    $35 / hr (Avg Bid)
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    Note: The request of this post has changed to reflect a new requirement: Experienced NodeJS Javascript Application Engineer needed. Fluent english is an absolute must. Proof of work and portfolio is a must. Project Deliverables: - Comb over already written nodejs application, ensure it follows proper OOP - Prep code to utilize threejs 3d animations This code was written by previous team of engineers. One must be comfortable with being able to comb through code written by someone else. We are very serious about continuing this relationship with an individual in the long run. Serious candidates only. We are experience AWS/DEVOPS Engineers, we expect you to be passionate and serious about formidable code.

    $28 / hr (Avg Bid)
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    YOUR BID PRICE IS FINAL/NO LATER CHANGE IS ALLOWED. I DON'T DEAL OUTSIDE FREELANCER. PLEASE CHECK ALL THE ATTACHED VIDEOS FIRST. I have an existing HTML5/JavaScript, opensource Photo Editor installed in my Shared Linux Server. Please visit (It is made in PHP/JavaScript/HTML5) I want to add just two features in this tool: should be a collage maker system just like this website Should be able to download high-res in JPEG/PNG. You need to add some templates and show me how can I add more. See: 2. Image background remover in one click User Uploads a picture, click on the Background Remover Button, background gets removed. User downloads as PNG or JPEG. User should also be able to add a new Background. Please check attached video. You cannot use any PAID API/Library/Plugin. Only...

    $77 (Avg Bid)
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    Requirement 6 días left

    ■ Requirements - Modern Open GL 3.3 or 4.6 - C++ programing - Libraries to use GLFW, GLAD, IMGUI - Visual Studio project 2019 - The app must be a only windows aplication - Use advanced optimization methods like bvh ■ What should the application do? - Draw shapes: Points, lines, line string, closed polygons, texture load - Edit shapes: Move vertices of created shapes - Select shapes - Grouping system - Layer system - Ortographic camera like google maps (pam and zoom movement) - Support to load/edit geojson file - Menu for: settings, lines thickness, layers colors, transparency ■ Files to be delivered - Visual Studio project 2019

    $184 (Avg Bid)
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    Atmasampanna 6 días left

    Need to create frontend and backend of the E-commerce webapp. The project may last for a long duration of time. Participants might get a chance to be involved in the production phase.

    $4 / hr (Avg Bid)
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    Need React Native Developer 6 días left
    VERIFICADO

    Need React Native developer to work on monthly rates Front End React Native Developer Frameworks: • React-Native • React • Unity • Angular • GITProgramming Languages: • Javascript • Typescript

    $382 (Avg Bid)
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    14 ofertas
    React TypeScript Developer 6 días left
    VERIFICADO

    We are looking for a React TypeScript Developer. Your primary focus will be the development of the Front End end of websites using the latest technologies and standards with React, TypeScript, Styled-components, and CSS. We are a team of developers, and have mostly have clients, and some internal projects. The developer that get awarded this project will have continued work, without an end date. The developer must also have a good Internet connection and be comfortable working on a remote desktop application, like TeamViewer. The interview process will consist of taking tests to gauge your experience and cognitive ability. The rate of pay will be based on the test scores and level of experience. Minimum hourly rate can be $20/hr but can be much higher (perhaps double) based on ...

    $33 / hr (Avg Bid)
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    I am looking for a Full Stack developer with experience in the gaming (Gambling) industry for a long-term and FULL times 40-45 hours a week, the person must have a great experience in PHP, HTML, CSS, Bootstrap, Tailwind CSS, Laravel and Vuejs, ***THIS IS A FULL-TIME AND LOGN TERM JOB ONLY. YOUR PRICE MUST REFLECT A FULL-TIME JOB***

    $10 / hr (Avg Bid)
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    38 ofertas

    * Home page of educational institution, showing what fields can be studied in this institution. * Dashboard to manage the things that can be displayed in each section of the fields. For example, you can study b.a engineering so there will be a page showing info about it, and the dashboard can control what sections will be in that page (e.g text, video, pictures, file...) * we will need to add secured online payment. * Search field. * Host the website on existing domain. * SSL website The website needs be: - RTL - Secured - Firebase - ReactJs - Material UI - Mobile and desktop responsive

    $1313 (Avg Bid)
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    49 ofertas

    I want to make affiliate ecommerce website with high level security and fastest load time.

    $429 (Avg Bid)
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    28 ofertas

    Hello, We are looking to hire React.js and Grails(web app framework) expert today. we use React/JSP on the FE, and grails on the BE. To start with easy tasks, I will assign the tasks on the frontend(React.js) first. If you're familiar with Java or Ruby on Rails, Grails framework will also be easy to work on the project. It's an exciting opportunity for an experienced developer who is looking for a new challenge with a fast-growing startup targeting the fastest-growing region in the world. The position is on a contract basis for 6+ months, on a milestone basis with the option to potentially become a full-time team member.

    $2650 (Avg Bid)
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    88 ofertas

    Looking for a experienced Middle+ Full – Stack Developer. Ukrainian developers preferred! Project Description: 3 months project to help a start-up launching their product. Tasks: • Development of new and maintenance of current functionality; • Participation in the full software development cycle; • Solving current tasks Key Requirements: • 4 years of experience as a Full - Stack developer; • Excellent knowledge of ReactJS, NodeJS; • Good knowledge of Typescript, ; • Experience in developing and refining mobile applications

    $23 / hr (Avg Bid)
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    Hello, dear Freelancer.com community, We have operated an active Laravel/Angular/React app builder drag & drop system platform since 2020 that needs continuous development in the coming weeks. The platform runs via Laravel (PHP) as the backend and uses Expo as an API service. The front end uses Angular.js and React. Project details include: - upgrading Expo Cli - developing cronjob scripts - developing new features - new API interfaces (e.g., upgrade Expo CLI version) - bug fixes You need skills in these areas (full-stack developers preferred): – PHP – Laravel – HTML, JavaScript and CSS – Angular.js – MySQL – Git / GitHub (– Swift/Kotlin/Java/React) With pleasure, we can exchange ideas and details :) Thanks a lot! Best regard...

    $14 / hr (Avg Bid)
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    Hello Freelancers, I need someone who has experience in React Native to fix bugs in the application. Bug Fixes 1) The main issue is that whenever you clicking a button to change the channel an api hitted and response took some time , meanwhile if you are hitting the button multiple times , the api is unable to handle the response 2) Add Loading ICON Need someone who can fix this today - Dont bid if you cant start immediately Please MENTION "REACT" in your bid to be considered valid

    $85 (Avg Bid)
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    Hi All , I have a client who need Full time dedicated resources of following tech stack Frontend Developer - 2 Resources Angular.js React.js HTML/CSS Javascript PHP Backend Developer - 3 resources Node.js MySQL Contract : 3 months Project Start Date ; 1 -2 weeks NOTE : I need Full Time Frontend + Backend Developers . Please apply with your CV in WORD format

    $770 (Avg Bid)
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    Looking for a experienced Senior Frontend Developer for a long-term project. You will work with a team of international experts for this project. Tasks: • Developing new user-facing features using React.js; • Building reusable components and front-end libraries for future use; • Translating designs and wireframes into high-quality code; • Optimizing components for maximum performance across a vast array of web-capable devices and browsers Key Requirements: • Strong proficiency in React.JS; • Typescript; • HTML, CSS/SCSS; • ViteJS (or understanding of similar tools, e.g. Webpack); • Test driven development with Jest; • Git/CircleCI; • Experienced in web app development with AWS; • English (or German) fluent at level B2 or better ...

    $505 / hr (Avg Bid)
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    I need to create a web portal exactly like "" there, I have included a video of the requirement (the Video is in the Hindi Language). Apart from this, I'm looking for a long-term collaboration I do have a couple of more projects which required a developer with the same skills.

    $905 (Avg Bid)
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    Help me to understand how to speed up the development server react when i run yarn dev, before it would take 2 sec now can be 3 give me some example to find the issue as an example

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    Por favor, regístrate o inicia sesión para ver los detalles.

    Destacado Sellado Acuerdo de Confidencialidad
    React.js Website Developer 6 días left
    VERIFICADO

    Need a react.js developer to design my website in 2 days

    $171 (Avg Bid)
    $171 Oferta promedio
    155 ofertas
    Full stack developer from US 6 días left
    VERIFICADO

    LDI-MAP is a growing fintech company dedicated to building innovative software solutions that are disrupting the retirement plan industry. In the Full-Stack Developer role, you’ll be responsible for building cutting edge, data analytics-driven software that empowers financial Advisors, and facilitates better retirement outcomes. By joining our team you will become part of a tight-knit group that is hungry, full of knowledge driven to succeed. As a team player you will adjust quickly and your depth of experience will provide insight that will help spearhead the evolution of our system architecture. This is a fully remote position that allows you to work from home. We mostly use Python/React, storing data in MySQL and PostgreSQL. Tell us about your experience with recent projects(Pre...

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    See video in attached link. Tell my why you can build this and send samples to look at. Experts only. Must have a Bachelors degree. You must have 5 or more years of coding experience. Send me samples of your work that are close to my project, such as a CAD viewer or Graphic viewer you have built. Make 3D Viewer program for 3D Graphics and CAD Drawings. The HTML viewer will have lists, menu's, hot spots, hyperlinks, navigation to different scenes, etc... It will create the CAD presentation into an HTML file. It must be able to handle files from Blender Graphics, CAD Graphics, 3D Graphics, 360 Images, and 2D images. It must also work with eDrawings viewer. The program needs a place for me to store a bank of graphics with sound that can be used for effects when a user completes a tas...

    $2500 - $5000
    Sellado
    $2500 - $5000
    41 ofertas

    Design of the particular UI will be provided in the form of figma link, you can utilise it. design should be exactly same as provided by figma link. link will be shown to you in chat. initially i want to testify the quality of the work so, rest of the screen will be given for project will be next part.

    $114 (Avg Bid)
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    React Native Developer needed -- 2 6 días left
    VERIFICADO

    !! Only Freelancers, No Companies !! Hi There I need experienced React Native Developer to work on news app same like as public news app. If you have any exp in news app development, plz bid. We will provide you rest api.

    $282 (Avg Bid)
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    16 ofertas

    Desenvolvimento de plataforma para um público específico.

    $539 (Avg Bid)
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    21 ofertas
    React and Threejs Canvas Project 6 días left
    VERIFICADO

    Looking for an experience React and Three js developer for video editing application. Application requirement. - Can upload multiple video to react application. - Video should be tranformed / converted to Video Texture while playing in canvas by Threejs - Transform video to different brightness/hue/contrast - Apply vertex shaders to the video application. - Apply spring / react-spring animation when playing 2 videos in sequences. The video should switch to next video with small animation on the screen. - Should drag emojis on the video editing canvas to play along with video. - When rendering the video on Canvas, the size/height/width has to be responsive or by passing parameters to fit to the canvas candidate: Ideal candidate should demonstrate work in react/threejs/ffmp...

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    NFT play2earn 6 días left

    Innovative NFT play2earn game on the WAX blockchain

    $20 / hr (Avg Bid)
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    26 ofertas
    Next.js, WebRTC and Web Workers 6 días left
    VERIFICADO

    This is a fun project. Your mission, should you accept it, is to fix memory leaks and UX issues in an existing React component. This component performs identity document verifications remotely (using an API) and locally (using a WASM worker). There are two goals for this project: 1) Identify and fix user experience issues related to WebRTC permissions 2) Identify and fix memory leaks, if any Details on UX issue: We are using HTML Canvas with a video stream started by WebRTC to show helpful tips on how to take good pictures for verification. Due to permissions issues with WebRTC on iOS and Android devices, many users complain the app is not working. Currently, the component will show a dialog with help on how to fix the permissions, but it is not enough. We'd like you to help invest...

    $1859 (Avg Bid)
    Acuerdo de Confidencialidad
    $1859 Oferta promedio
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    Frontend developer - React.js 5 días left
    VERIFICADO

    Convert our figma design reference into perfect responsive and interactive frontend screens. It’s should be very clear that the developer should have an understanding of proper alignments, fonts, colors. Money will not be released if the work delivered is found lacking in those areas. 1st milestone will be created and released after 25 percent of the work is done. No milestones will be created in advance.

    $306 (Avg Bid)
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    Hello, I need to create the React project, which will contain the Blog, admin panel and information about me. Project should be animated and look modern. Please send me your portfolio.

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    Marketplace with accounts (MongoDB), Stripe payment support and admin panel for suspending / managing accounts, chatbox with clients. Write it in ReactJS and Node.js, ExpressJs. It needs to be mobile friendly. It should look similar to this: Please post an example mockup and how you would build it along with your portfolio (no fakes, I will know that it's not you).

    $190 (Avg Bid)
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    23 ofertas

    We have a site called it is a social media site we need to redesign the site as We have license for this theme you can also download the sample code

    $499 (Avg Bid)
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    Unsere Software steuert Arbeitsprozesse und Arbeitszeiten. Die Software ist für kleinere bis mittlere Betriebe vorgesehen und sehr einfach zu bedienen. Die Software ist bereits im Einsatz. Es müssen noch Bugs behoben und regelmäßig neue Features hinzugefügt werden. Our software manages workflow and employee working hours. The software is running already for a production company. There need to be fixed some bugs and added some new features.

    $16 / hr (Avg Bid)
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    Demonstrable proficiency in HTML, CSS, JavaScript, Typescript, React, Redux, RxJS, Yarn and related technologies for client-side JavaScript libraries/frameworks development Understanding of the principles of web application development, and developing pragmatic web-based APIs Experience in building high-performance desktop/web applications Work experience with relational databases such as SQL Server, and MySQL Strong problem-solving skills - the candidate should be able to provide examples of applying analytical and technology skills to solve a non-trivial problem Apply relevant standards and best practices into one’s work. Demonstrate keen attention to detail, edge cases, and cascade effects. Flexibility to learn new tools, technologies, and domains as required Knowledge of other we...

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    This website is to track the employee's progress, assign them competency programs, and take attendance based on whether the employee has attended the program. This website should be built using the MERN stack. The features that it needs to include are: 1. Login/Logout or Registration -> 3 different entries should be there -Administrator (HR, Trainer) - Employee -Supervisor 2. Training calendar in tool 3. Training record (Attendance, Feedback) 4. UI for feedback /Attendance 5. Display – Dashboard 6. Metrics – Employee wise /dept (Report structure tree of Employees) 7. Competency Management - UI for Managers to fill (Excel to Database porting) 8. Competency monitoring of each employee (actual vs target chart) 9. Employee Competency history tracking – If the ta...

    $186 (Avg Bid)
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    6 ofertas
    Android App 5 días left

    APP for Android Title: Mental Ability for NTSE Login/Signup Pdf Testing (very important) (MCQs) Test Evaluation Performance check Result Payment collection

    $116 (Avg Bid)
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    I want to spend 4-5 days in June with a developer based out Delhi NCR to learn how to code a smart contract in ethereum Solidity knowledge and already developed contract experience required

    $390 (Avg Bid)
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    Principales artículos de la comunidad React.js