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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    At least 3 full months of work in which the completion of the development of the Marketplace website, the addition of additional features, bug fixes, tests and completion of the website, and preparation for launch. Maintenance, testing, bug fixes, and adding features to the Ecommerce Marketplace website.

    $786 (Avg Bid)
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    Ajax senior dev 6 days left
    VERIFIED

    Hello, in way to improve our actual script, we looking for an senior ajax developer for put some ajax code in our script for improve speed and have all in one page. We can hire you right now and you need to start now too. You need to know Ajax and , is important. Job is about 10h - 15h Thx you

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    Hey Guys, I'm Looking for a web based portal for students, Coding Practice and Assessment Platform with Leader board as the major module, Plagiarism checking of Code Submissions and few other as mentioned in the attachment.

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    Need help who are expert in react and tailwind css, want some small small modifications in styling. Small task . Only come if you are experts in that

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    Project: NFT Lending Site Fork READ FIRST BEFORE BIDDING!!! Please read the entire project description. We will not entertain low bids that are used to kick off conversations and negotiations to increase the price in the project. Please bid on the entire project, and take into consideration your bid price that could focus on profitability for you while staying competitive against other bidders. Also, note that we will be using milestones, and expectations for this project. Bidding: Please bid the total cost of the project, and the timeframe. Also, please take your bid and add 10-15% to the project to allow for a buffer of odds and ends. Project Summary: We are looking to fork a specific crypto project. DM me, and I will share with you the exact project name, website, and smart cont...

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    Need ReactJS, Firebase/MongoDB, ReactNative App development to develop an App. I prefer developer/group from Bangalore/Chennai.

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    We have a application where we need to view the ppsx file in browser. Application is a react app. I need help in fixing this issue.

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    Hi, i'm looking create an online Event Venue Searcher and Booking. Even types include but not limited to: Corporate gatherings, Parties, Weddings, Photography/Video production project Venue types can be: Restaurants, Bars, Production Studio, Commercial Space The site should have a basic functionality good enough for a demo and/POC. Basic features would include: - Browse venues by location, event type date -map point search - venue reservation, request to reserve and request acceptance by host - payment simulation -email/sms notification to user - calendar blocked as venue availability - offline chat guest and host we expect full implementation however we will be doing the architecture, we will provide the datamodel as well, the layers of the site will be: UI: React Web API: Pyt...

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    Optimizing frontend 6 days left
    VERIFIED

    I have a frontend developed using reactjs nextjs and nodejs . I would like to optimize that for better performance. When you bid the project please share your experience with frontend performance optimization.

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    Need a website built on no-code app /form builder platforms that will be self hosted. The platform has to be based on react or angular. Back end is SQL server database and API needs to be built on ASP.net core. Chosen no-code app builder needs to be able to support multi tenancy, single page, single sign on and multi role user authentication/authorization. Developer should be able to code custom HTML controls for form builders Only bid if you have done such thing in the past and have a demo to show your work

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    Hello, Everyone React, Node, MongoDB developers

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    We need 2 Senior Full Stack Developers in one team: Must have experience in both skills; 1) .net core on backend - min 4 years of experience 2) ReactJs OR React Native on frontend - min 2 years or experience.

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    Hi. I am looking for full experienced react developer for fixing my NFT Game UI. If you have full experience in refining UI responsive of existing FE, please apply. This is my game. Thanks.

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    I only need a base of the website. For example: -- (1st domain name with .in extension) -- (2nd domain name with .it extension) I need two sites with differences in domain extension. First, we need to check what hostname we hit on the internet using "Next JS Middleware". After that, it will only return that site API. And that API JSON data we need to store in session. After that I only want one component to be rendered in the front end with the data stored in JSON format in session.

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    Looking for an experienced frontend developer for a 1-2-week project. We are developing a website which aims at searching for medical infomation within a given database. Our frontend is very trivial now and need to be polished. We hope you are experienced with JavaScript, React and UI design. The requirements of the website pages: 1. A main page looks like a searching engine. 2. The result display of the searching engine. It would be document and some annotation reaults. We will provide the ideal outcome examples and the code of the current demo.

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    MERN stack text management project

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    Hi there, I need a developer to build a quick prototype for a web app. This web app has accounts and involves some simple calculations from user inputs. I would prefer if this were to built on the MERN stack. I have very clear and complete project specs including wireframes, which will be passed along to those shortlisted. The DB schemas are already defined. Include 'salon' in your bid so I know you've read this. This is a brief project - I'm looking for someone who can set aside a few hours and complete it today. No fancy UI is required. Thanks!

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    Hello freelancers! Already, I have hotel booking site made by React and Laravel. But I want to convert from MVC architecture to MVP architecture in backend with Laravel. If you have good experience in Laravel8 and MVP architecture, Please contact me. We will discuss in detail via meeting...

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    Dear Sir/Madam, We are running scholarly journal () and publishing scholarly articles. The abstract page and articles are not indexed in google scholar (). Backend: Nodejs Frontend: React js Note: our website is already set with SSR with required Meta tags. But the google crawler is not indexing the data from Meta tags. Finally, articles from our journal should appear in the google scholar search () Kindly give your lowest quote to rectify these issues. Thank you.

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    Essential Job Requirements 1. Education and Experience Proven work experience of 2 to 4 years in software development Modify existing software to correct errors and improve the quality, reliability, productivity and performance of the application as well as make recommendations for improvement & innovation Experience working in an Agile/Scrum development process BS/MS degree in Computer Science, Engineering or a related subject 2. Required Skills, Roles and responsibilities At least 2years of experience using React JS, JavaScript,HTML,CSS Design and develop REST APIs using ASP.Net/C# using .NET Core Implementation experience of the token-based Authorization (JWT) Good working experienceonAngular is a plus. Frameworks:Microsoft .Net/.Net Core Database Experience: Relatio...

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    I need senior react developer who have over 5 years experience.

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    Good day. I need a UX UI for a website. The theme is the production of personalized furniture. I also need a react.js developer for my website and a graphic for the visualization Dzień dobry. Potrzebuję projekt UX UI dla strony internetowej. Tematem jest produkcja personalizowanych mebli. Potrzebuję także programisty react.js do strony internetowej i grafika do wizualizacji

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    As a Software Engineer at Zenith Chain, you’ll develop full-stack web applications that help crypto-native organizations, like an exchange, collaborate with other dev to build and maintain the centralized exchange. You will work closely with the co-founders of Zenith Chain (both technical), build the foundation of an engineering team from both a technical and cultural standpoint, and lead technically as the organization scales. We’re looking for a candidate that deeply internalizes Zenith Chain Values and executes at the speed of light. Our stack Javascript / Typescript React, Node.js, , GraphQL Sequelize, PostgreSQL, Alchemy, Heroku, Elasticsearch What we’re looking for Must have: Understanding of Chinese language is a must Experience with runnin...

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    Hallo I need to implement error handling function Senario in react inside operation file one function for error handling one for unit test coverage deadline one day Please ping me if you interested and you have skills on that thank you

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    React developer 6 days left
    VERIFIED

    I would like to hire an experienced React developer to convert Figma design to React.

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    Need React js Developer for frontend.

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    Dear freelancers I am looking for a senior front-end engineer. Please read the post carefully to the end. Primary Responsibilities -Articulate a long-term technical direction and vision for building, maintaining, and scaling ’s solutions, -Create trustworthy user experiences by building interfaces that are simple, easy to comprehend, performant and reliable using modern tools like React, React Native, Typescript, React Navigation, -Ensure you are familiar with current trends and best practices in front-end architecture, including performance, security, and usability, -Mentor and train other team members on design techniques and coding standards, -Make your coworkers feel included in every interaction. Basic Requirements -Knowledge and experience in building production applications ...

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    I need a Chrome Extension developer for the long term. Details will be provided to the selected freelancer. I have lots of projects to start. New freelancers who have experience in developing Chrome Extension can also bid.

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    We are hiring top 10 React JS developers for our short and long term projects. Candidate must have experience with Redux, TypeScript, Tailwind CSS and API integration. If you interested then type friendly word at the top of the proposal and share the past projects Thanks

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    All details attached in this doc. Thank you

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    PROBLEM STATEMENT: I AM a shopper TRYING TO look for a discount BUT discounts I find are not up-to-date BECAUSE a) websites are not updating them and the codes they offer are frequently incorrect WHICH MAKES ME FEEL like giving up discount apps The employer is looking for: An experienced web developer to build a web application for providing discounts to the users. The project should be based on React/NextJS/TypeScript The employer wants to build a website with similar functionality to the following websites: (main inspiration) The core features of the website are: Connection with AWIN API to retrieve the merchants information, codes and deals. Integration with GraphCMS to manage all the data Integration with PPC Bee for selected deals Google Analytics integration Category and Brand Page...

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    We want to build a component for editing CSS properties which is similar to the devtools panel in which one can view and edit the styles on an element (check photos and videos). The component should work standalone and the set of properties to display will be provided as an input. We want to build this component in SolidJS preferably, otherwise with ReactJS with Hooks. In brief, one should be able to 1. Enable or disable a property 2. Edit a property 3. Add a property to a class 4. When editing a property gives suggestions for possible set of applicable values for that property 5. One is able to increase or decrease values or shuffle through different values using the arrow buttons 6. When adding a new property gives suggestions for valid properties 7. On hover can give a small tooltip h...

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    We are seeking a software engineer to join our team of Golang developers. We are building a platform that will be used by machine learning engineers to build/train models. This is a project that has been in development for several months. We are currently polishing our beta, and are adding various features. The Golang application is built in the Wails framework. We are seeking a full stack dev that has advanced experience with Go, Node.js, React, javascript. This is a long term project, and will be challenging. In the next months, this project will deliver a PC, Mac, Linux, and Web app from a single code base. Interest in the data science and machine learning industry is a plus! Requirments: - Golang - Node.js - React - Javascript - payment gateways - API development experi...

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    Full Stack Java/ React JS 5 days left
    VERIFIED

    Need 5+ years experianced Full Stack Java/ React JS dev

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    Shifts :UAE Shift Responsibilities and Requirements: 4+ years of experience designing and developing Node JS, React and React Native. Understanding fundamental design principles behind a scalable application Extensive knowledge of JavaScript, web stacks, libraries, and frameworks. Experience in consuming web services (REST) and processing data (JSON) Good understanding of NodeJS asynchronous runtime. Good understanding of JS concepts on callbacks and closures Proficient understanding of code versioning tools, such as Git Knowledge of front-end technologies such as HTML5 and CSS3. Knowledge of standard tools for optimizing and testing code Developing and maintaining all server-side network components. Ensuring optimal performance of the central database and responsiveness to front-end /ba...

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    Complete my NFT marketplace 5 days left
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    I would like to finish developing my NFT marketplace which was left undone.

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    We are looking for a well experienced front end react and backend Python developers to work on our projects on a long term basis.

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    Create login,register and logout page using json server and axios after login successfully redirecte to other page

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    Looking to develop an ERP system that has similar features to Loyverse, Vend, Shopify, and even a little bit like Quickbooks. It will be used for a bakery/deli shop. There are multiple locations, so the system will need to be synced with all locations. There will be 3 components: back office, POS system, and station for printing barcode tags (prints barcode for freshly baked good) Some features for Back Office: -- Inventory tracking/stock adjustment/inventory counts/inventory history -- Print product barcode tags -- Production (track stock of items produced out of ingredients) -- Transfer/Return orders (transfer products from one location to another) -- Employee management (track time and employee payroll) -- Purchase orders (create purchase orders from suppliers) -- Expenses (e...

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    Greetings from Impezar. UI developer with nearly 5 years of experience in developing front end application using Angular Framework. We are looking for a long term engagement of at-least 6 Months. Work location will be Kochi Kerala India.

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    React developer 5 days left

    Only one page!! desktop-6 This is figma design: budget: $5 if you don't this budget, please don't apply to this job! Remember above! Thanks.

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    We are a software development company looking for a Senior Full-Stack Developer to join our team and work on a long-term project. We are looking for a developer expert in React.js (MUI), FastAPI (Python REST API) for a web app project. Basic requirements: - 6+ years experience in front-end languages including React.js, Material Design UI (MUI framework), HTML5, CSS3, Responsive design, Javascript. - Good eye for pixel perfect design - 6+ years experience in back-end including FastAPI (Python), API integrations - Experience in working with cross-functional teams in Agile (weekly sprints) - good level of english (at least B2/C1 level) - 10-20hr per week commitment What's next? If contacted, we will ask you to do a small exercise (about 10-20 hrs work) where you have to make a responsi...

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    We are a software development company looking for a Senior Full-Stack Developer to join our team and work on a long-term project. We are looking for a developer expert in React.js (MUI), FastAPI (Python REST API) for a web app project. Basic requirements: - 6+ years experience in front-end languages including React.js, Material Design UI (MUI framework), HTML5, CSS3, Responsive design, Javascript. - Good eye for pixel perfect design - 6+ years experience in back-end including FastAPI (Python), API integrations - Experience in working with cross-functional teams in Agile (weekly sprints) - good level of english (at least B2/C1 level) - 10-20hr per week commitment What's next? If contacted, we will ask you to do a small exercise (about 10-20 hrs work) where you have to make a responsi...

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    We are looking for a senior react native developer to join our team. Please include your proposal with your react native portfolio urls and example code. Will hire right candidate by this week

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    -must speak English -must be proficient in nodejs and react js -must have verifiable references -experience is a must as we are looking for talented people and not paying to learn in the job -companies welcome to -availability is important as we’re looking to hire now Please only reply if you meet the criteria above and identify which part your applying for Compensation we can hire you hourly or fixed weekly or monthly that’s to be determined upon our conversation and please do state in reply.

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    Hello, Everybody. I have a React&Node App and it works well on local. For now, I need to deploy Node App as a subdomain on Namecheap Cpanel. I need only an experienced guy in order to complete it asap. Hope you are doing it remotely. If you are interested in my job, please submit your proposal. Have a good day!

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    We are looking for a great JavaScript developer who is proficient with React.js and React Native. His/her primary focus will be on developing user interface components and implementing those following well-known React.js workflows. - Developing new user-facing features using React.js and React Native - Building reusable components and front-end libraries for future use. Skills : - Strong proficiency in JavaScript. - Expertise in React Native would be plus - Thorough understanding of React.js and its core principles. - Knowledge of automation testing framework using any technology for web and mobile apps is a plus.

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    ob Desc Develop Astro's internal tools and fulfilment web app, writing well formatted modular code Perform testing and debugging Build reusable components and front-end libraries for future use Translate designs and wireframes into high-quality code Evaluate task effort and estimate deliverables Create unit tests and implement self-tests to make sure the code is running well Take responsibility for the entire life cycle of your product: development, test, production, and subsequent fixes and improvements Qualification Minimum 2 years of working experience in Web Frontend development Proficient in JavaScript, React JS, NodeJS Proficient in TypeScript is a plus Experience with popular React.js workflows (such as Flux or Redux) Experience in software development lifecycle best practices...

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    Hello. I want to find someone who is good at Django & Next.js. If you passed test step, I will give you a project for hotel booking system. Thanks for your time.

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    React. js and redux developer 5 days left
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    React. js and redux developer needed for few tasks. If I like the work then it could become long term.

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