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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    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...

    €88 / hr (Avg Bid)
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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 dni left
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    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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    Senior React JS Developer Needed 6 dni left
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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 6 dni left
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    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 6 dni 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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    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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    Hi, I am going to build site using Angular template. I am looking for developer who has much experience in Node.js , Angular.js, HTML,CSS. I will provide detail info about project to selected developer.

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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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    Hire Django & Next.js Expert -- 3 6 dni left
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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 6 dni 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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    We have an existing ordering form and need to integrate 3rd party payment services. The form is built with Reac. This needs to be done quickly and there will be ongoing project to build the entire e-commerce service platform for the right candidate.

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    Users sign up with facebook account or google to connect to instagram account and get information ( username, etc). We need a developer who knows this part well. Thanks

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    I need a javascript script to be able to capture embed youtube video from iframe (cross-origin). Thank you.

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    Saas for the Translation Agency 6 dni left
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    We desire to create a SAAS platform, where agencies and freelance translators can manage the client orders, assign tasks to freelancer, keep track of the task, upload files and deliver the output to the client, get payment from the client, make payment to the freelancer or the agency. We want to build a platform where: Translation agencies and freelancers can track its clients and their job history in the most detailed way. Manage the external translators and other members of the agency effectively. Keep track of key metrics of the agencies and freelancers, like customer satisfaction, TAT, Job history. Automate how a project is created, assigned, monitored, delivered to the client. Manage client payments, feedbacks (which are essential to rank freelancers and agencies internally) Automat...

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    Empresa de tecnología con sede en Panamá, estamos en la fase de contratación de programadores front-end con conocimiento en Javascript y CSS. Se requiere que el programador tenga algunos conocimientos: - Conocimiento en Javascript y CSS - Preferiblemente tenga conocimiento en o React.js - Conocimiento básicos en TailwindCSS - Conocimiento en Redux - GitHub - Utilizar herramientas de seguimientos - Trabajo en equipo - Disponibilidad de tiempo - Dominar el idioma español

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    Looking for Gatsby developer 6 dni left
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    I'm seeking an individual full-stack developer who has extensive experience in Typescript, React, and Gatsby.js. Requirements - At least 5 years with hands-on experience across multiple JavaScript frameworks and libraries, including React, Redux, TypeScript, Gatsby, etc. - Proven problem-solving and fast-learning skills. - Experience with Netlify is a plus.

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    We are looking for an experienced REACT.js developer for a 1–2-month project to work alongside our internal Web Administrator. Spyraflo, Inc. needs a product directory created for our new Makeswift website (not yet live). Scope and Description of Work to Be Performed  Create new functionality in Makeswift for a full Product catalog o Create two React components to list products and product details o Create an administrative tool to add, edit and delete products o Use existing product data (SQL data file) to model and create a new database to host product information o Build the product database with the intention of one day incorporating e-commerce capabilities where visitors can purchase products directly from the website Requirements:  Previous experience working as a react.js ...

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    Hello, I'm looking to find a dev team that can build a tool that is 100% JavaScript, that can: #1 embed into a website with a small snippet of code. #2 have floating icon in bottom corner that user can click on (like the chat icons) and gives popup. #3 popup would provide ability to adjust size of text, change the colors used (like grey scale, dark mode, more...), screen magnify, text spacing, highlight links, more. Looking for long-term partnership on this project. Please see attached image. Please include any concerns or questions you have inside your bid. Please tell me if you have built anything like this before and provide a link inside your bid.

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    I have an existing serverless web application that displays data in an RDS database in a responsive UI. Background Requirements Please have a great eye for design and create a cohestive, consistent design. Please also have experienced with sequelize, Amplify, lambdas - all within the AWS environment. If you are familiar with SAM / CloudFormation and yaml configurations, that would be great. I have an existing dynamically created html report - shown below (without the battery grid). We want to modify it so we can dynnamically display red / yellow / green in each of the 96 battery bricks in the battery pack (also shown below). If you can make the battery pack look more like a battery pack and make the overal report look more professional, that would be great. Please show any report / chart /...

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    Accounting website website and control panel. Looking for a full stack developer. Design will also be needed According to the scope attached. Project language: back end: Python or node js Front end : Html ,css , javascript , react

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    busco programador react para arreglar algunas cosas de una app web que tenemos. Es necesario que sea en React

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    Required the Interviewer 6 dni left
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    We are hiring for new developers for our agency and looking for some Interviewer who can help us out in taking the interview and shortlisting process. We required an agency, who can take the Interview on our behalf in deffrent-2 technologies like React.JS, Node.JS, Wordpress, PHP, QA, Tester, etc. Candidate who will take the Interview should be technically sound, fluent in English and experienced in respective domain. We will share the basic format of criteria on which you should have to make the shortlisting of candidates. Send your proposal with authentic past experience and charges. (we will provide the fee basis on per Interview). Thanks

    €2 - €8 / hr
    Zapečateno Pogodba o nerazkritju informacij
    €2 - €8 / hr
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    Hire Django & Next.js Expert -- 2 6 dni left
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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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    The project is to build a simple betting website in which users can register with their MetaMask wallet and bet on available sports events. After an event outcome is decided by admin, users who predicted the result correctly get rewards proportional to their betting amount and the house gets 5% of the total sum. -Events are created by admin. Each event has two competing teams each with its own photo. There can be 4 possible outcomes for each event (win, loss, draw, cancelled). - Each user can have simple profile (avatar and bio and showing his betting history) - User also have settings options to be notified about their betting outcomes and newly published bets. - Each event has a deadline to bet, amounts betted on each result and the list of participants on each event. Each event also ...

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    I need a fullstack developer to build me a website in React + Python. Connect with me and I'll share the required details

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    i want to develop a p2p payment system like Perfectmoney .we need django for backend and react for front end. please let me know if you have any experiance in developing such a project thank you

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    Hire Django & Next.js Expert 6 dni left
    VERIFICIRAN/A

    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.

    €591 (Avg Bid)
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    Objective: ** I am a subscriber of a digital planner. This planner should used as guide for functionality and some design cues. I will provide a login so that you can review the website and app functions. ** Website: Design Purchasing website for login (access to the desktop planner) Set up purchase and FAQs (similar to (original site) Subscriber features: Webpage designed like a planner – Identical to Month page: (syncs with app and google calendar) • Monthly quote (to be provided) • Millionaire Milestones section to set monthly goals • Ability to navigate from one month to the next • Ability to add events to calendar Week page: (syncs with app and google calendar) • Weekly quote (to be provided) • Weekly reflection (goals section) ...

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    I am looking for a blockchain developer who can work full-time with me.

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    Revamp the front end of the website 6 dni left
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    Looking for someone to work on an existing project and help revamp the front end.

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    we are looking for a fullstack developer for our group, skills with reactjs, laravel, php

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