React.js is a powerful, open-source JavaScript library that allows developers to build user interfaces and single-page applications with ease. By hiring React.js Developers, clients can transform their web development projects with efficient, scalable, and responsive solutions. Here's some projects that our expert React.js Developers made real:

  • Designing and implementing interactive dashboards for data visualization
  • Building complex multi-step forms with seamless user experience
  • Developing robust web applications handling emails and other communication tools
  • Creating virtualized rendering for high-performance tables and lists
  • Integrating blockchain technologies like Web3.js for decentralized applications
  • Tailoring feature-rich taxi and transportation apps with smooth backends
  • Connecting various web pages to build cohesive user journeys
  • Developing comprehensive unit tests to ensure code reliability and stability

Our talented React.js Developers have successfully executed numerous projects on Freelancer.com, showcasing their expertise in this cutting-edge technology. Their proficiency in React.js, combined with the multitude of use cases that it offers, makes them the perfect choice for clients looking to stand out in the competitive digital landscape.

If you want to bring your web development ideas to life, look no further than Freelancer.com to hire experienced React.js Developers. Our platform provides an extensive pool of skilled professionals ready to take on your project and transform it into a success story. Don't wait any longer - post your own project today and start collaborating with the best React.js talent available!

Från 280,313 betyg, betygsätter kunder vår React.js Developers 4.9 av 5 stjärnor.
Anlita React.js Developers

React.js is a powerful, open-source JavaScript library that allows developers to build user interfaces and single-page applications with ease. By hiring React.js Developers, clients can transform their web development projects with efficient, scalable, and responsive solutions. Here's some projects that our expert React.js Developers made real:

  • Designing and implementing interactive dashboards for data visualization
  • Building complex multi-step forms with seamless user experience
  • Developing robust web applications handling emails and other communication tools
  • Creating virtualized rendering for high-performance tables and lists
  • Integrating blockchain technologies like Web3.js for decentralized applications
  • Tailoring feature-rich taxi and transportation apps with smooth backends
  • Connecting various web pages to build cohesive user journeys
  • Developing comprehensive unit tests to ensure code reliability and stability

Our talented React.js Developers have successfully executed numerous projects on Freelancer.com, showcasing their expertise in this cutting-edge technology. Their proficiency in React.js, combined with the multitude of use cases that it offers, makes them the perfect choice for clients looking to stand out in the competitive digital landscape.

If you want to bring your web development ideas to life, look no further than Freelancer.com to hire experienced React.js Developers. Our platform provides an extensive pool of skilled professionals ready to take on your project and transform it into a success story. Don't wait any longer - post your own project today and start collaborating with the best React.js talent available!

Från 280,313 betyg, betygsätter kunder vår React.js Developers 4.9 av 5 stjärnor.
Anlita React.js Developers

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    Nightly Express & React Tutoring
    6 dagar left
    Verifierad

    I’m scheduling one-hour, real-time coding sessions every night from 10 pm to 11 pm EST so I can build small, end-to-end features while you guide me step-by-step. My goal is to strengthen fundamentals in both and React.js; at the moment I’m a complete beginner in each, so clear explanations and patient pacing are essential. During each call we will share a screen, discuss a concise problem, and code the solution together—nothing pre-recorded. Think along the lines of spinning up a simple Express API, wiring it to a lightweight React front end, then gradually layering concepts such as routing, state management, and basic CRUD. By the end of every session I want a working mini-project committed to a GitHub repo plus a short recap of what we covered. I work best when: &bu...

    $9 / hr Average bid
    $9 / hr Snittbud
    24 bud

    We are looking for a developer to make improvements to our existing Qbank (question bank) admin panel and backend system made in react, node js and mongodb. Project Scope: Rich Text Support for Options: Currently, our question and explanation fields already use a rich text editor. We need to extend the same functionality to the answer options (A, B, C, D). The solution should support formatting such as tables, bold text, images, and basic styling. Ensure proper rendering of formatted content on the frontend. Video Feature Integration: Add support for video content in questions. Preferred approach: allow embedding via video URL (YouTube/Vimeo or similar). Optional: simple video upload feature if feasible within budget. Display videos properly in the frontend question view. Requi...

    $19 Average bid
    $19 Snittbud
    51 bud

    Property Listing System (Foundation) Features: Add/edit/delete property Images, videos, pricing Location + map integration Basic search

    $229 Average bid
    $229 Snittbud
    77 bud

    I need the payment gateway wired into my custom-built website so customers can complete purchases without leaving my domain. The codebase is entirely bespoke (no WordPress or Shopify framework involved), and I will give you full access to a staging environment as soon as we get started. What I expect from you: • Install and configure the Payqora API keys (I’ll supply or generate them once you tell me what’s required). • Build the secure checkout flow, including tokenisation, callback / webhook handling, and clear error messaging. • Ensure transactions appear correctly in my Payqora dashboard and that order statuses on the site update in real time. • Run end-to-end sandbox tests, then move everything to live. • Hand over concise implementat...

    $426 Average bid
    $426 Snittbud
    95 bud

    I’m building a web-based platform whose standout feature will be a machine-learning model that delivers real-time predictive analytics to our users. The web development itself is the primary focus right now, but every screen and endpoint has to be designed with the forthcoming ML component in mind so that the transition from prototype to production is seamless. Here’s what I need: a full-stack developer who is comfortable setting up the entire web application—front end, back end, and database—and who can also wire in a predictive analytics model once the core site is live. If you work best with React, Vue, or another modern framework, that’s fine; I’m flexible as long as the result is responsive and maintainable. On the server side, I expect clean, well...

    $22 / hr Average bid
    $22 / hr Snittbud
    133 bud

    We’re looking for an experienced Shopify App Developer to build a high-performance bundle & upsell app similar to Kaching, Pumper, and AOV.ai. The goal is to create a scalable public Shopify app that helps merchants increase conversions and boost AOV through bundles, quantity breaks, and upsells, with an easy no-code setup. The app should include core features like fixed and mix-and-match bundles, quantity discounts, BOGO offers, frequently bought together, in-cart and post-purchase upsells, and one-click add-to-cart functionality. It should also have a fully customizable, mobile-friendly UI compatible with all themes, along with a simple merchant dashboard for creating offers, tracking revenue, conversion rates, and running A/B tests. We expect a clean, performance-optimized ...

    $577 Average bid
    $577 Snittbud
    69 bud

    Full Stack + AI/ML Developer Needed – AI-Based Production Planning System (Fixed Price) We are a software product company building an AI-based Production Planning & Control (PPC) platform for a manufacturing client. We are looking for a skilled Full Stack + AI/ML developer to join us as a long-term collaborator and work as an extended part of our team. --- PROJECT OVERVIEW Build a web-based, AI-powered PPC system with the following key modules: • 14-step automated workflow (Sales Order → Dispatch → Billing) • ERP Integration (Tally API / ODBC) • AI features: production scheduling, demand forecasting, delay prediction, resource optimization • Role-based access control for 9+ departments • Real-time dashboards & MIS reports • Automat...

    $4157 Average bid
    $4157 Snittbud
    34 bud

    Build a “Strategic Session 1:1” feature for a web platform Project Description I am looking for an experienced full stack developer to build a new feature inside an existing web platform for strategic consulting sessions. The goal is a very simple click-and-create UX. A consultant should be able to click “Activate Strategic Session” and enter only: * 2 short lines about the session focus * target audience * duration: 30 / 60 / 90 / 120 minutes * Zoom or Google Meet * price * basic availability The system should then automatically create: * a public booking landing page with shareable link * AI-generated landing copy * available time slots * Stripe / PayPal payment choice * automatic call creation after payment * a private session page for recap and follow-up Cl...

    $574 Average bid
    $574 Snittbud
    306 bud

    We are building a platform focused on gaming, prediction systems, and decentralized infrastructure. We are looking for an experienced developer who can take a leading role in system architecture and core development. Scope of work: - Design and develop backend systems - Build and integrate smart contracts - Contribute to overall system architecture - Ensure scalability, security, and performance Requirements: - Strong experience in backend or fullstack development - Experience with Web3 / blockchain technologies - Experience with smart contract development (e.g. Solidity) - Familiarity with distributed systems - Ability to work independently and take ownership - World wide location developers(except India, Pakistan, Bangladesh, Africa: will skip developers on these locations) Nice to h...

    $34 / hr Average bid
    $34 / hr Snittbud
    59 bud

    I am building a combined Travel OTA and Visa-branded crypto card platform and need a designer-developer who can take it from concept to a polished, secure, and fully responsive website. Scope The site will run 5–6 core pages covering About Us, Services Offered, and Contact Information, plus dedicated booking and card pages that showcase the dual offering: a live travel booking engine and a crypto-powered debit card. You will handle the full UX/UI design, front-end build, and hand-off ready for my back-end team. Key functionality • Integrated travel booking system that lets users search, filter, and reserve flights, hotels, and activities in real time. • Crypto card integration so customers can order, top-up, and manage their Visa crypto card inside their account. ...

    $3766 Average bid
    $3766 Snittbud
    196 bud

    I am launching an online directory focused exclusively on service providers and I need the full website built from the ground up. The platform has to let individual businesses sign up, create, edit, and update their own listings while still allowing me—as the administrator—to step in, approve, or fine-tune any entry when needed. Core flow • Visitors land on the site, browse categories or search for a service. • Service providers register, fill out a profile with their details, and submit it for approval. • The admin dashboard gives me visibility into every listing so I can moderate content, highlight featured providers, or directly edit information. Key needs • Clean, responsive UI/UX that works on desktop and mobile. • Robust database s...

    $37 Average bid
    $37 Snittbud
    52 bud

    We are looking for experienced React developers to customize an existing template (Vuexy) and adapt it to the needs of our product. Our product is an innovative ecosystem of Artificial Intelligence models designed to generate accurate inferences related to risks and fraud. We are currently focused on developing the first Minimum Viable Version (MVP), scheduled for release in May. The React template will serve as the main user interface (front-end). Interaction with our AI models will be handled through a pre-developed lightweight API. The front-end has push messaging capabilities, which have already been implemented using MQTT. The selected team members will be responsible for: - Customizing the Vuexy template in React to meet the specific requirements of our product. - Developing intui...

    $150 Average bid
    $150 Snittbud
    126 bud

    I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life.. • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with (logic in api side login, refresh,)clean handling of loading or error states • User and Artist dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • if have Webrtc experience added advantage. • Seamless API integration via Axios or Fetch, wired to the endpoints I’ll supply • File upload flow (ideally prepared for S3 or DigitalOcean Spaces later) • Polished styling—Tailwind or MUI is welcome, but plain CSS that looks good is fine I don’t have wireframes, so I’ll...

    $252 Average bid
    $252 Snittbud
    50 bud

    I’m looking for a sharp front-end specialist to take our existing web application and make the user experience shine. The backend is already solid; what I need now is modern, responsive and accessible UI work that feels fast and polished across major browsers and devices. You’ll be working with our REST-based API, so comfort with JSON, Axios / fetch and state management (React + Redux or comparable) is important. Figma files and a clear component map are ready—your task is to translate those designs into production-ready code, wire them to the API, and leave the codebase clean, tested and easy to maintain. Key things I expect • Pixel-perfect implementation of the supplied designs • Reusable, well-documented components • Cross-browser and mobile resp...

    $19 / hr Average bid
    $19 / hr Snittbud
    244 bud

    We are looking for experienced React developers to customize an existing template (Vuexy) and adapt it to the needs of our product. Our product is an innovative ecosystem of Artificial Intelligence models designed to generate accurate inferences related to risks and fraud. We are currently focused on developing the first Minimum Viable Version (MVP), scheduled for release in May. The React template will serve as the main user interface (front-end). Interaction with our AI models will be handled through a pre-developed lightweight API. The front-end has push messaging capabilities, which have already been implemented using MQTT. The selected team members will be responsible for: - Customizing the Vuexy template in React to meet the specific requirements of our product. - Developing intui...

    $146 Average bid
    $146 Snittbud
    184 bud

    What we're building A multi-page health and ecommerce platform. The frontend designs are fully finalized in HTML/CSS — your job is to convert them faithfully into a React.js frontend with a Node.js + PostgreSQL backend. This is not a design project. The platform has three core parts: a product marketplace (500+ SKUs, cart, checkout, payment gateway), a doctor/specialist directory with prescription management, and a suite of 6 AI-powered diagnostic tools with inbuilt logic / mechanism & some integrate with the Anthropic Claude API (text and vision). Scope summary ~20 pages + admin panel · Ecommerce with Razorpay integration · User auth (JWT + OTP) · 6 AI tools (questionnaire-based + photo analysis via Claude Vision API) · CMS for blog + products ...

    $4846 Average bid
    $4846 Snittbud
    76 bud

    Job Overview: We are seeking a highly skilled Senior ERP Developer with 5+ years of experience to design and build robust, scalable ERP solutions tailored for the manufacturing industry. The ideal candidate will have strong expertise in modern web technologies including React.js, Node.js, and NestJS, along with hands-on experience in both relational (SQL) and NoSQL (MongoDB) databases. In this role, you will be responsible for developing and enhancing ERP modules, contributing to system architecture, and ensuring high performance and reliability of applications. You will work closely with cross-functional teams to translate business requirements into technical solutions, with a strong focus on manufacturing workflows and enterprise-grade systems. Experience with cloud platforms such as AWS...

    $378 Average bid
    $378 Snittbud
    62 bud

    All the details about the project have been discussed on the freelancer chat. I will be paying 1000$ and bonus too if Toheed satisfies me with this great work. I need a clean, responsive landing page built with React.js that focuses on presenting clear product information. The goal is to give visitors an immediate understanding of what the product does, why it matters, and how it benefits them. You’ll start from a blank repo (Create React App, Vite, or —whichever you prefer) and build a single-page layout. A hero section with an eye-catching headline, concise product description, and space for an image or animation should sit above the fold. Below that, I’d like space reserved for brief feature highlights and an optional area where future testimonials or a pricing blurb...

    $123 Average bid
    $123 Snittbud
    98 bud
    Site Web et Affiche Publicitaire
    3 dagar left
    Verifierad

    Je souhaite confier deux missions complémentaires à un même spécialiste : 1. Développement web Le cœur du projet est la création d’un site moderne, rapide et responsive. Je veux : • une architecture propre, optimisée SEO ; • une interface UX/UI cohérente avec notre identité ; • une section facile à mettre à jour pour nos futures offres. Style et exigences supplémentaires : • Design UX/UI clean et minimaliste similaire à [nom d'une application que vous aimez] ; • Palette de couleurs professionnelles (bleu foncé et blanc) ; • Inclure un tableau de bord utilisateur, une barre de recherche et une conception enti&e...

    $462 Average bid
    $462 Snittbud
    135 bud

    I need a developer to convert my existing logistics web app from a no-code platform (Base44) into a fully custom system with backend owned by me. The app is already partially built and includes: - Shipment management (multi-modal: sea, land, air) - Client portal (track shipments, invoices) - Financials (invoices, costs, payments) - Commission system (based on profit) - Basic CRM (clients/contacts) Scope of work: - Rebuild backend using Supabase (preferred) or Node.js + PostgreSQL - Connect existing frontend (React) or rebuild cleanly if needed - Implement proper database structure - Fix and optimize logic (payments, commissions, profit calculations) - Ensure mobile responsiveness - Remove dependency on Base44 completely Requirements: - Clean, scalable code - Full source code ownership -...

    $1085 Average bid
    $1085 Snittbud
    277 bud
    Urgent Game Install Support Needed
    3 dagar left
    Verifierad

    Looking for an expert to install and configure a game properly. Must handle setup, dependencies, and basic troubleshooting. Must work on my pc

    $91 Average bid
    $91 Snittbud
    51 bud

    We are looking for a development team to build a social media monitoring and disinformation detection platform available in both English and French. The platform should monitor multiple digital channels including Facebook, X / Twitter, YouTube, TikTok, Instagram, blogs, forums, RSS feeds, and public Telegram channels. It should be able to collect and analyze text, images, and videos in real time in order to detect fake news, misleading content, unusual trends, coordinated campaigns, sentiment changes, and potential risks. The platform should include: - Real-time monitoring - AI-based detection and classification - Credibility, virality, and harmfulness scoring - Geographic and trend analysis - Alert prioritization - Real-time notifications by email, SMS, WhatsApp, and API - An operatio...

    $8175 Average bid
    $8175 Snittbud
    104 bud

    I am kicking off the development of a brand-new, bank-side web application and need a senior engineer who can own the stack end-to-end. The front end will run on React.js while the back end relies on Node.js, so you must be equally comfortable architecting RESTful APIs as you are crafting responsive, accessible UI components. This is a full-time, fully-remote role aimed at professionals with roughly 6–7 years of solid commercial experience in both technologies. You will design the initial technical architecture, set up the codebase, choose libraries, establish testing practices, and guide the project through to production. Clean code, security best practices, and scalability are non-negotiable given the banking context. Compensation is set at 18–20 LPA and the engagement is ...

    $2393 Average bid
    $2393 Snittbud
    65 bud
    Hourly Lovable Web App Developer
    3 dagar left
    Verifierad

    I’m running several SaaS projects on Lovable and need a versatile developer I can rely on by the hour. Every task revolves around building and refining full-stack web applications: crafting responsive, accessible interfaces in React.js, wiring up the backend logic, and exposing or consuming well-structured APIs. Most assignments arrive as concise tickets—sometimes a fresh feature, sometimes a bug fix—so the ability to switch context quickly and keep code clean is key. You’ll commit through Git, open pull requests for review, and keep progress visible on the shared board. I release payment the moment your code lands successfully in staging. Typical deliverables • A new or updated React.js screen that meets supplied Figma specs • Corresponding backen...

    $13 / hr Average bid
    $13 / hr Snittbud
    298 bud

    **Project Overview:** I’m building the digital platform for **Me & Mirror Fitness**, a premium fitness brand focused on personalized training, clean environments, and data-driven transformation. The backend system is already in place. I’m now looking for a **React developer** to build the frontend UI based on **detailed UX designs (already prepared)**. This is Phase 1 of a larger product, so the focus is on delivering a clean, scalable, and production-ready UI foundation. **UX Reference (Important):** A detailed UX document has already been created and will be shared with the selected developer. The UX includes: * Page structure (Home, Programs, Health Monitoring, etc.) * Role-based dashboard layout (Business User, Trainer, Admin) * Left-side navigation hierarchy (Pri...

    $267 Average bid
    $267 Snittbud
    119 bud
    AI Automation & Chatbot Build
    3 dagar left
    Verifierad

    I plan to streamline several internal workflows with machine-learning powered automations and, in parallel, launch a tailored chatbot that reflects my brand voice. The engagement is split into two connected tracks: 1. Smart automation • Map current data flows, then design and deploy Python-based pipelines that ingest data from my CRM and analytics dashboards. • Train and tune models (TensorFlow / scikit-learn preferred) to surface predictive insights—think churn risk and high-value lead scoring—served through a lightweight API so the business team can consume results in real time. 2. Custom chatbot • Build a conversational agent (Rasa, Dialogflow, or a comparable LLM stack) able to switch context between customer support queries and basic sales q...

    $366 Average bid
    $366 Snittbud
    146 bud

    I need a complete online store that can handle both physical stock and downloadable items. Clothes will be my flagship line, and I want customers to be able to play with a real-time 3-D garment customizer—spin the item, swap colours or fabrics, and add it straight to their cart. The core storefront must include a smooth shopping cart, customer-review section, and wishlist. Digital downloads should be delivered automatically after checkout, while physical orders trigger the usual shipping workflow. Please choose the platform or tech stack you feel offers the best mix of stability, scalability, and support for the 3-D tool; I’m open to anything from a headless React setup to a tailored Shopify or WooCommerce build. Deliverables: • Responsive, branded theme implemented and ...

    $12 Average bid
    $12 Snittbud
    31 bud

    I need the front end of a new e-commerce website built entirely in React.js. The goal is a fast, responsive shopping experience that cleanly connects to my existing back-end APIs. The scope is limited to website development only; all UI/UX decisions will be guided by the wireframes I will share once we start. Code must be production-ready, well-structured, and easy for another developer to extend. Deliverables • React.js codebase (functional components, hooks) • Core screens: home, product catalogue, product detail, cart and checkout • Responsive styling and basic accessibility compliance • Integration points clearly documented so my back-end team can plug in APIs without friction Please use modern tooling you are comfortable with—whether plain CSS...

    $1989 Average bid
    $1989 Snittbud
    151 bud

    Our cloud-based accounting platform is built entirely with a JavaScript/Node.js back-end on top of MongoDB. During closed beta everything behaved, but the moment we opened the doors to a larger audience the application locks up under load—no gradual slowdown, just a complete system freeze that forces a hard restart. I need a seasoned engineer who can dedicate roughly 5–6 hours every day for at least the next three months to hunt down the root causes and redesign the platform so it scales smoothly. You’ll collaborate directly with me and two in-house developers; we work on GitHub, communicate over Slack, and deploy through a basic CI pipeline that will probably need tightening as part of this project. Key objectives 1. Diagnose and eliminate the freeze: trace blockin...

    $268 Average bid
    $268 Snittbud
    59 bud

    I need a complete, production-ready e-commerce website built from the ground up. The project covers everything from setting up the back-end architecture to delivering a polished, responsive front-end that works flawlessly on desktop and mobile. You’re free to recommend the platform—whether that ends up being Shopify, WooCommerce, Magento, or another stack that better fits the brief—but your choice must balance scalability, ease of management, and long-term cost efficiency. I’m looking for clean, maintainable code, modern UI/UX standards, and a checkout flow that converts smoothly. Key deliverables • Full storefront with product catalog, search, filtering, and variant handling • Secure payment gateway integration (major cards + PayPal/Apple Pay/Go...

    $40 / hr Average bid
    $40 / hr Snittbud
    119 bud

    We are looking for a skilled React and Developer to join our remote engineering team. You will be responsible for building scalable, high-performance features across our ticketing and event management platform using modern web technologies. Responsibilities • Develop and maintain web applications using and React • Build scalable backend integrations with PostgreSQL • Integrate and deploy applications using AWS infrastructure • Write clean, maintainable, and well-documented code • Collaborate with product managers, designers, and backend engineers • Optimise application performance and ensure responsiveness • Participate in code reviews and technical planning Required Skills • Strong experience with NestJs and React • Solid understan...

    $7 / hr Average bid
    $7 / hr Snittbud
    71 bud

    I’d like a clean, responsive website built from scratch with a single focus: education. The site will act as a repository of question papers so students can quickly find, view, and download past exams and practice materials. Key functions I need: • Organised library of question papers grouped by subject, class, and year • Fast keyword search and filter options • Secure admin dashboard where I can upload new PDFs in bulk, tag them, and edit metadata • User-friendly front-end with clear navigation and mobile-first design • Basic analytics to track downloads and popular papers I’m flexible on the stack as long as it is widely supported—WordPress with custom post types, Laravel, or a lightweight Node/React combo are all fine if performan...

    $108 Average bid
    $108 Snittbud
    52 bud
    MERN Full Stack Development
    1 dag left
    Verifierad

    The application already runs on a full MERN and next js. A full stack—frontend, backend, and database(Mongo DB) developer is needed to work on an existing project to patch existing features or develop new ones. The candidate must be able dive into this mixed code, understand it, and then push the project forward with fresh features. You will: • Review and refactor the current frontend, backend, and MongoDB layers so everything follows modern best practices. • Build any new React components, Node/Express endpoints, or database schemas we agree on. • Write unit / integration tests and update the README so another developer can spin the app up without guesswork. • Commit through Git with clear messages and create pull requests for each milestone so I can t...

    $10 / hr Average bid
    $10 / hr Snittbud
    215 bud
    Web App Redesign & API Fixes
    1 dag left
    Verifierad

    My existing web application works, but the user journey feels clunky and the sign-in flow is unreliable. I want to give the whole front-end a minimalistic makeover that guides people through the site effortlessly, while simultaneously eliminating the authentication errors that keep popping up in the API. Here’s what I’m after: • UX/UI rebuild – a clean, stripped-back interface that prioritises easier navigation. Think clear hierarchy, generous whitespace, intuitive iconography, and responsive behaviour across desktop and mobile. You’re welcome to prototype in Figma or a similar tool before coding. • Front-end implementation – I’m comfortable with modern stacks (React, Vue, or similar). Whichever you choose, the final code should be modular, ...

    $1081 Average bid
    $1081 Snittbud
    446 bud

    Tôi đang dùng thư viện TradingView để hiển thị biểu đồ nến. Vấn đề lớn nhất hiện tại là khi người dùng rời khỏi tab trình duyệt và quay lại, nến (đặc biệt là nến hiện tại) mất thời gian đáng kể mới hiển thị lại đầy đủ. Tôi cần bạn: • Phân tích nguyên nhân chậm khi tab được kích hoạt lại. • Đề xuất và triển khai giải pháp tối ưu để nến hiện tại được render tức thì, không giật lag. • Giữ nguyên mọi tính năng có sẵn của chỉ can thiệp ở lớp hiển thị hoặc bộ nhớ đệm. • Cung cấp mã nguồn đã chỉnh sửa kèm hướng dẫn tích hợp vào dự án React/JS thuần (nếu cần). • Ghi chú r&ot...

    $411 Average bid
    $411 Snittbud
    33 bud

    I would like to have a single-page portfolio website developed for myself. It should be fully responsive and built using modern, well-integrated technologies. We can finalize the specific tech stack later, and I would also appreciate your suggestions on the best approach.

    $16 Average bid
    $16 Snittbud
    66 bud

    Basic Clinic Queue Management Tool with WhatsApp Integration (MVP) Description: We are looking to build a basic clinic queue management tool for internal use. This is a simple MVP focused on managing patient queue and reducing manual work. Not a complex system. Scope: 1. Patient Queue Management • Add patient (name, phone optional, shift) • Auto generate token number • View queue list • Mark next / skip patient • Basic status (waiting, in progress, completed) 2. Simple Dashboard • Patients today • Current token • Number of patients waiting 3. Token Display Screen • Show current token (large) • Show next few tokens • Auto refresh 4. WhatsApp Integration (basic) • Receive message from user • Cap...

    $281 Average bid
    $281 Snittbud
    105 bud

    I'm looking for a proficient React developer who can assist with state management, specifically using the Polygon library. Key Responsibilities: - Implement effective state management solutions using Polygon. - Ensure seamless integration of state management into the overall React application. Ideal Skills: - Deep understanding of React and its state management. - Proven experience with the Polygon library. - Strong problem-solving skills. Please provide examples of previous projects where you've implemented state management in React using Polygon.

    $142 Average bid
    $142 Snittbud
    90 bud

    I need a thorough code review of my full-stack React application. The code has been generated with Lovable and Claude Code, and reviewed by Sonar. The review should focus on: - Code Efficiency: Optimize performance and reduce complexity. - Security Vulnerabilities: Identify and mitigate potential security risks. - Coding Standards: Ensure adherence to industry best practices and coding standards. Ideal Skills and Experience: - Proficiency in React and full-stack development - Strong background in code review and optimization - Expertise in security best practices for web applications - Familiarity with industry coding standards and best practices Please provide examples of similar work done and your approach to this project.

    $2879 Average bid
    $2879 Snittbud
    161 bud

    I’m extending an existing Android application that mixes Dart on the mobile side with a Reach JS layer for certain screens. The backend and data flow are already stable; the work now is purely about adding a brand-new user-interface feature. Here’s what I need from you: • Design and code the new UI element so it blends seamlessly with the current look and feel. • Hook it into the existing Dart logic (state management, navigation, and any relevant services). • Keep the code clean, well-commented, and committed so I can follow your changes easily. • Supply a short change-log and build/release instructions once the feature is in place. When you apply, focus on your experience delivering similar UI features with Dart or Reach JS—screenshots, repo...

    $100 Average bid
    $100 Snittbud
    39 bud

    **React.js SEO Implementation for Coaching Institute Website (Pune)** We are Abhyaas Tutorials, a DPIIT-recognized JEE/NEET coaching institute based in Wakad, Pune. We have a detailed, professionally prepared SEO strategy document ready and need an experienced React.js developer to implement it on our live website. **Tech Stack** - Frontend: React.js (hosted on VPS, deployed via SSH) - CMS: Strapi (headless CMS, some content managed here) - Server: Linux VPS (SSH access will be provided) **Scope of Work** 1. React Helmet / meta tag implementation across all pages - Title tags and meta descriptions for 8 pages (Homepage, JEE, NEET, Board, CET, Wakad, Punawale, Success Stories) - Canonical tags on all pages 2. New pages to create (React routes + Strapi content types) - /jee-coa...

    $78 Average bid
    $78 Snittbud
    63 bud

    I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Python layer that exchanges events through Kafka. The frontend is split between an older Angular module and a newer React interface. The job is to design and code the complete feature, wiring it cleanly into every affected service and UI surface. You will: • Extend (or create) the relevant Spring Boot endpoints, making sure they publish and consume the right Kafka topics. • Update the Angular dashboard and the React SPA so the user experience is seamless across both frameworks. • Keep code idiomatic, unit-tested, and pushed to our Git repo via pull requests. Acceptance criteria • All API tests pass in ...

    $12 / hr Average bid
    $12 / hr Snittbud
    118 bud

    I have photographs that I want transformed into clean, black-and-white word-art rendered in a modern style. The only part of the picture that truly matters is the selfie area, so please use that as the focal point when turning shapes, shadows, and contours into text. I’ll need two background variations—one pure white, the other a solid blue—while the lettering itself stays monochrome to preserve a crisp, high-contrast look. Feel free to work in Illustrator, Photoshop, or any vector-friendly tool you prefer; I’m flexible on the final file type, so send the finished artwork in any combination of PNG, JPEG, or PDF that best preserves sharp edges. If you can also include a layered or vector source file, that would be appreciated for future resizing. Once delivered...

    $59 Average bid
    $59 Snittbud
    10 bud

    Quero lançar um site institucional enxuto, elegante e focado em performance. O projeto abrange quatro páginas — inicial, sobre, serviços e contato — todas concebidas em mobile first, com carregamento rápido e código limpo (HTML, CSS e JavaScript puro ou, se você preferir, um framework como React). Na área de contato preciso de: • um formulário simples, com validação de campos em tempo real; • integração direta ao Mailchimp para que cada envio alimente automaticamente minha lista. Também desejo um visual dinâmico: scroll suave entre seções, animações sutis ao passar o mouse e transições suaves de página que mantenham a exp...

    $444 Average bid
    $444 Snittbud
    83 bud

    I am looking to build a cutting-edge online casino website featuring progressive jackpot slot games and incorporating cryptocurrency transactions. Here are my requirements: - Implement a variety of exciting and engaging slot variants with a focus on progressive jackpot slot machines. - The website should be designed to support cryptocurrency transactions, offering an innovative and secure way for users to enjoy their gaming experience. An ideal candidate should: - Have experience developing betting websites, particularly online casinos. - Show a strong understanding and knowledge of integrating cryptocurrency payments. - Be experienced in designing engaging and successful slot machine games, specifically progressive jackpot slots.

    $22 / hr Average bid
    $22 / hr Snittbud
    75 bud

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