React.js Jobs

I’m putting together a corporate head-count tracker and I want to move quickly from concept to a secure, production-ready application. The backend will run on Spring Boot; the frontend needs to be available both as classic HTML/CSS/JavaScript pages and as a richer React interface, so we can serve different devices and gradually migrate stakeholders toward React. Security is essential. I need full user authentication with clear role separation—Admin and User—implemented with Spring Security (JWT or another proven token strategy). Beyond wiring the login flow, I also want advice on best-practice password storage, CSRF protection, and anything else you see fit to lock things down. Where I need your help: • Designing the Spring Boot architecture, setting up entities, r...

I have an existing React app and need the key pieces of the Polymarket privy-safe-builder example wired straight in. The focus is on two things: • User authentication & management – replicate the Privy-powered flow so users can sign up with email or social, link a wallet, and stay logged-in across sessions inside my project. • Smart-contract interaction – expose the same Safe-based contract calls shown in the repo (read, write, signature gathering, error handling), but adapted to the contracts my dApp already references. The codebase you’ll be grafting onto is a standard Vite + React setup with already in place. I’ll add you to the Git repository once we start; you can work in a feature branch and open a pull request when complete. Acceptance crite...

I’m Muhammad Hakeem Wiyar, a dedicated and detail-oriented web designer and developer. I’m excited to share my live portfolio, hosted on Vercel, where you can view my recent projects, skills, and design approach. My portfolio showcases: Modern and responsive website designs Clean UI/UX layouts Mobile-first development High-performance web applications Professional project presentation I focus on delivering high-quality, user-friendly, and visually appealing digital solutions tailored to each client’s needs. Every project reflects my commitment to quality, clear communication, and timely delivery. You can view my live portfolio here: I’m currently open to freelance projects in: • Website Design • Frontend Development • UI/UX Design • Web App...

I need help finishing a React-based e-commerce web application within the next seven days. The design files and API documentation are ready; what’s left is turning them into a polished, functional front-end. Here’s the scope you’ll tackle during the one-week sprint: • Wire the React components to the existing REST endpoints • Implement routing and state management so pages load quickly and data stays in sync • Hook up the product listing and search views, the cart flow, checkout, and basic user sign-in/out • Apply the provided styles and ensure the layout remains responsive down to mobile screens • Hand over clean, well-commented code in a Git repo as the final deliverable I’m looking for someone comfortable with React Router, Con...

Technical Specifications: Financial RAG & DRM Platform This document details the technical requirements for the development of an advanced financial data visualization and analysis platform with DRM protection and AI integration. The goal is to obtain a breakdown of costs and execution times based on the milestones presented here. Note: The platform must support a multi-language interface, allowing users to toggle between English and Spanish for navigation and system menus. Table of Contents 1. Frontend Architecture and Interface (SPA) 2. Backend, Infrastructure, and Data Pipeline 3. Security and DRM (Digital Rights Management) 4. Semantic Engine and AI Integration 5. Monetization and Ad Management 6. Development Plan for Quoting (Milestones) 7. Annex: Classification Logic and Nomencl...

We are looking for an experienced React.js and Node.js developer (Full Time Freelancer, not an Agency or Part Time freelancer) to develop and integrate APIs for our web application. The developer will be responsible for creating secure, scalable, and well-documented APIs and connecting them with third-party services. This project involves backend API development, third-party service integration, and frontend API consumption where required. ✅ Responsibilities: Develop REST APIs using Node.js and Integrate third-party APIs / external services Connect APIs with React.js frontend Implement authentication systems (JWT, OAuth, API Keys, etc.) Handle data validation, error handling, and performance optimization Write clean and maintainable code Provide API documentation (Postman / Swagger pref...

Dashboard Blu X is a professional financial dashboard for options traders tracking real-time gamma exposure (GEX) in SPX options using ThetaData. I have a complete financial dashboard (2,000+ lines of production code) that needs deployment. Development is fully finished and tested locally. I need a deployment/DevOps specialist to handle setup, integration, and take the system live for an initial pilot of two users. WHAT WE HAVE - Complete React 18 + TypeScript frontend (28 files, 1,037 lines) - Complete FastAPI backend (11 files, 673 lines) - All 6 dashboard features fully implemented - WebSocket real-time updates working - All calculations and formulas complete - Complete documentation (README + deployment guide) - Docker configurations ready - Vercel + Railway configs prepared - Envir...

I need a full-stack developer to build a website in Node.js that cleanly presents three core areas—business listings, a blog section, and a product showcase—supported by a secure admin panel. The admin area must let me create, update, and archive content for each of those modules using a straightforward email-and-password login flow. Visual direction is modern and minimalist: lots of white space, clear typography, subtle accents, and a layout that feels snappy on both desktop and mobile. I’m happy for you to pick the most suitable Node.js framework (Express, Nest, Next, etc.) and database, as long as the code is modular and easy for another developer to pick up later on. Key deliverables: • Responsive public site with the three content sections wired to dynam...

Quero lançar uma pequena rede social voltada exclusivamente para lazer. O objetivo inicial é bem enxuto: disponibilizar um espaço onde os usuários possam trocar mensagens diretas em tempo real, de forma simples e intuitiva, tanto no desktop quanto no mobile. Escopo que preciso neste primeiro momento: • Tela de cadastro/login com autenticação básica (e-mail ou telefone). • Lista de contatos adicionados e busca simples de usuários. • Janela de chat bilateral com histórico armazenado em banco de dados. • Notificações de novas mensagens (push ou web). • Painel administrativo mínimo para moderação e métricas essenciais. Tecnologias ficam a seu critério, cont...

Proyecto: Ecosistema Disruptivo de Reclutamiento Ético (HR-Tech) Buscamos: Un perfil híbrido excepcional que combine la ingeniería de software de alto nivel con una mentalidad de crecimiento (Growth) y producto. Alguien capaz de construir desde cero una plataforma que gestione identidades verificadas, inteligencia de emparejamiento (matching) y una infraestructura de datos inmutable. 1. El Reto Técnico (Arquitectura y Desarrollo) El candidato seleccionado será el responsable total del stack tecnológico, asegurando que la plataforma sea rápida, segura y estéticamente impecable. Frontend de Nueva Generación: Implementación en React (TSX) con Tailwind CSS y Framer Motion. La interfaz debe ser "líquida", ...

Hi! I’m looking to build a complete Rocket League boosting website from scratch, not just a basic theme website. Main goal: A modern dark esports-style website with a full advanced boosting order system. Core features required: 1. Advanced Boosting Calculator * Select current rank and desired rank * Select queue (1v1 / 2v2 / 3v3) * Solo Boost or Duo Queue * Platform selection (PC / PlayStation / Xbox) * Optional extras (stream option, offline mode, VIP priority, specific booster, express delivery, etc.) * Live price updates instantly based on selections * Promo code system 2. Order Flow * Right-side live summary panel * Secure checkout (Stripe required, PayPal optional) * Order confirmation page after payment * Contact via Discord as main communication 3. Website Pages * Home...

Scope of Work The developer will build a production-ready web application integrated with our AWS backend (API Gateway + Lambda + DynamoDB). Core Modules to Develop 1️⃣ Client Authentication System Signup / Login UI Email verification Forgot password JWT/session handling Role-based access (Client / Admin) 2️⃣ Payment Integration UI Setup fee payment (₹599) Razorpay / Stripe integration UI Payment success / failure pages Auto-trigger installation webhook Invoice / receipt view 3️⃣ Auto Installation Status Dashboard After payment: Show installation progress: Payment received ✅ Server provisioning ⏳ OpenAlgo installation ⏳ Bot connected ✅ Logs / status polling UI 4️⃣ Client Trading Settings Panel Clients can configure: Lots per index Enable / disable indices Hedge di...

1 Product & Inventory Management 1.1 Product Master Create, edit, and manage products Product categorization Product status (active/inactive) Mapping with brand, tax, and attributes 1.2 Brand Master Manage product brands Brand-wise reporting support Assign brands to products 1.3 Tax Master Define multiple tax structures Support percentage and fixed tax Tax mapping with products and transactions 1.4 Item Master Item-level inventory management SKU / item code handling Unit of measurement Opening stock and stock valuation 2 Supply Chain & Operations 2.1 Supplier Master Supplier creation and maintenance Contact, address, and tax details Supplier-wise purchase history 2.2 Trade Agreement Management Supplier-specific pricing agreements Validity period for agreemen...

I am looking for a lead developer to architect and build a scalable "Sustainability-as-a-Service" platform. The core of the product is a high-performance API that will be integrated into the checkout flows of major e-commerce and delivery platforms to facilitate real-time environmental impact (tree planting) with every transaction. The core challenge is two-fold: High-Volume API Integration: We need a robust backend capable of handling thousands of concurrent requests from enterprise-level partners. The system must process transaction data, trigger fulfillment requests, and maintain 100% data integrity. The Transparency Layer: Our unique value proposition is verifiable proof. You must build a database and front-end dashboard that stores and serves geotagged data (GPS coordinat...

I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life. For the first release only administrators will log in, manage artist records, and review user activity, so the UI can stay focused on that role. Here’s what I need built over the next 4-6 weeks: • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with login, refresh, and clean handling of loading or error states • Admin dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • 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) • P...

I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life. For the first release only administrators will log in, manage artist records, and review user activity, so the UI can stay focused on that role. Here’s what I need built over the next 4-6 weeks: • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with login, refresh, and clean handling of loading or error states • Admin dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • 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) • P...

I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life. For the first release only administrators will log in, manage artist records, and review user activity, so the UI can stay focused on that role. Here’s what I need built over the next 4-6 weeks: • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with login, refresh, and clean handling of loading or error states • Admin dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • 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) • P...

I’m gearing up to launch a full-featured online shop dedicated to golf equipment and accessories and need it built from the ground up with a sporty, dynamic aesthetic that instantly feels at home to players. The catalogue will showcase the brands golfers ask for most—Titleist, Callaway, TaylorMade, XXIO, Ping, Mizuno, Srixon, Cleveland—and must leave room to expand. What the site has to do: • Deliver lightning-fast product search with layered filters (category, shaft flex, price, etc.) • Display authentic customer reviews on every item • Offer real-time live-chat so shoppers can talk to our pros before they check out The layout needs to stay clean on mobile, load quickly, and make it effortless to compare clubs, balls, bags, and accessories side by ...

I'm looking to create a comprehensive anime streaming website that offers both subtitled and dubbed anime content. Key Features: - Extensive library of anime series and movies, both subtitled and dubbed. - User-friendly interface with advanced search and filter options. - High-quality streaming with minimal buffering. - User account creation with watchlists and viewing history. - Mobile-responsive design for viewing on various devices. - Secure payment gateway for subscription services. - Regular content updates and maintenance. Ideal Skills and Experience: - Proven experience in developing streaming platforms. - Strong UI/UX design skills. - Knowledge of content management systems. - Familiarity with payment integration and security protocols. - Experience in handling high traffic...

Fahad, I’m opening this private listing so we can move forward exactly as we outlined in our earlier conversation. Please accept the project and we’ll lock in the milestones, share the remaining assets, and get underway. All objectives, timelines, and deliverables remain the same as agreed. If you need any clarification before we start, just let me know here.

We are looking for an experienced React Native developer to build a working demo application using LiveKit for real-time audio/video communication, integrated with and a Node.js backend. Responsibilities Develop a React Native demo app using LiveKit SDK Implement real-time audio/video rooms Integrate for signaling, room events, and user presence Build a Node.js backend to: Generate LiveKit access tokens Manage socket connections Handle room join/leave events Ensure clean project structure with proper folder organization Deliver a fully runnable demo with setup instructions Experience with Understanding of real-time communication concepts (WebRTC basics) Ability to write clean, well-structured, and documented code Deliverables React Native frontend (LiveKit integrated) Node.js backen...

I have an early-stage browser game on that plays like Warcraft III “Line Tower Wars.” The core mechanics work, but every unit is still a placeholder square. I now want a complete sprite pass in a consistent medieval-fantasy style. What I need first • Ground enemies: Orcs, Goblins, Wolves, plus one Giant unit • Flying enemies: two distinct airborne creatures (The flying mobs must look airborne at all times; the ground mobs should read clearly even when scaled down.) All enemies should support a simple walk/run or flap loop, a hit frame, and a death frame. They also need visual cues for the swarm behavior the game relies on—think compact silhouettes that remain readable when many are on screen. Towers Replace the current colored blocks with proper tow...

Looking to create a marketplace where induvial and business(dealers) can post cars for sale and user can search, save, contact the sellers. Has anyone ever created a marketplace website for selling cars or have a solid experience to deliver? attach your comprehensive plan from start to finish.

I have a React-based front-end project that needs an experienced developer to take it from the current idea stage to a stable, well-structured codebase. The scope is still flexible, so I’m happy to shape the work around your strengths, whether that means building an entire single-page application, crafting reusable interactive components, or plugging React into an existing back-end such as Node.js or Django. For now, my priority is to set up a clean React architecture, configure routing and state management properly, and establish a sensible folder structure that will make future features easy to add. I will share the design assets—or sketches, if that is all I have at the moment—once we start so you can translate them into responsive, accessible UI. The deliverable I ...

I want to create an app that tracks golf rounds by user. The app has largely been created and needs to be hosted on Firebase. Need help migrating the code there and adding some features. It should do the following: 1. Calculate it's own hole specific index for course a golfer has played. Come up with a formula that accounts for average score on each particular hole. For example, golfers tend to play the same holes and therefore there should be an index for that hole for that particular golfer. AI can make suggestions on formula. 2. track a free drink tax that shows $2.50/free drink received throughout the year. At the end of the year, this tax is collected and paid towards the OG dinner each December. Winners buy losers a drink in the pub after each round. Losers are taxed that $2.5...

Project summary You are finishing an MVP for Beauty Couriers LLC, a local beauty supply pickup & delivery platform. The app was generated in Bolt and is built with React and Supabase. Stripe is partially integrated. The goal is to complete Auth, Payments, GPS tracking, and Store Launch. The app was generated in Bolt and is built with React and Supabase. We want totally use Supabase. Stripe is partially integrated. The goal is to complete Auth, Payments, GPS tracking, and Store Launch. Stack (current) Frontend: React (Bolt-generated) Backend: Supabase (Postgres + Auth + RLS) Payments: Stripe (partially wired) Maps/GPS: Geolocation + Maps (Google Maps or Mapbox acceptable) Roles CUSTOMER SUPPLIER COURIER ADMIN (basic admin controls if already scaffolded; otherwise leave mini...

Hiring Freelance Website Developer & Designer (Real Estate Website) We are looking for a skilled freelance Website Developer & Designer to build a modern, professional real estate website for our business. Scope of Work: Design & develop a responsive real estate website Property listing pages (commercial & residential) Lead capture forms (enquiry / contact forms) Clean UI/UX with a premium real estate look Fast loading & SEO-friendly structure Mobile, tablet & desktop optimized Basic admin panel / CMS to update listings (preferred) Tech Stack (Flexible): WordPress / Webflow / Custom (React, , etc.) HTML, CSS, JavaScript Experience with real estate or property websites is a big plus What We’re Looking For: Proven experience in website design &...

I run a neighbourhood butcher shop and need a mobile-first site that feels modern and clean. Its main job is to tell visitors who we are, show them today’s cuts, then let them tap a single WhatsApp button to place an order—no payment gateway, no checkout flow. The launch version will include: • Home – our story, opening hours, map and a fixed “Order on WhatsApp” call-to-action • Products – a simple photo grid with name, price / kg and a deep link that opens WhatsApp pre-filled with the chosen product Performance and SEO matter: please build with semantic HTML5, lightweight CSS, optimized images, proper meta tags, Open Graph and basic Product schema so we rank in local searches. A fast, responsive experience from 360 px up to desktop is non-...

We're building a high-velocity venture studio and are looking for a vibe-code-affine full-stack developer who can take a functional UI prototype and turn it into a launch-ready MVP—fast, clean, and production-safe. Our workflow: We deliver a clear concept + functional UI prototype (, no DB/auth yet) You take it to launch readiness in ~1 work day (sometimes 2 for slightly larger scopes) Stack and guardrails are predefined to minimize friction You’re encouraged to vibe code, but you must know when to slow down and do things correctly This is not greenfield architecture work and not pixel-pushing. It’s about execution speed with technical judgment. Typical Scope (per project) You will: Add Supabase backend (Postgres, auth, RLS) Implement magic-link auth (OAuth optiona...

I need my existing Excel file rebuilt as a browser-based application written entirely in Node.js on the back end and React on the front end. The spreadsheet’s rows become records in a database, and every change made to any field must be timestamped and stored so that a full history is available for each record at a glance. Four roles will sign in—IT, manager, associate, and user—through a multi-tier authentication system. Some roles must be able to view and edit data, while others will have view-only access, so robust role-based permission checks are essential. In practice this means the app must let approved staff handle data entry and modification, allow managers to carry out data approval and reporting, and give IT the tools to perform user management without leaving ...

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We are building Composey, a new online learning hub, and I need a seasoned full-stack developer to turn the concept into a secure, production-ready web platform where students and educators can truly interact. This is far more than a marketing page—it must function as a lightweight yet powerful LMS with e-commerce. What the site has to do • Two distinct user journeys: students and educators each reach the platform through their own login flow, land on purpose-built dashboards, and see only the resources allowed by their role. • LMS core: upload and stream video lessons, attach PDF resources, and create auto-graded quizzes. Progress tracking and basic reporting should be baked in. • Monetisation: integrate PayPal for one-off course sales and live tutoring booking...

Scope & Deliverables • Frontend website built using React.js. • Website acts as a landing page for the mobile application. • Sections may include: o Application overview and description o Features / services explanation o Call-to-action sections o Download links for the mobile application • Developer responsibility ends with delivering the final build files. • User and company registration & login system. • Backend development using Node.js or Python. • a custom service submission system. • Subscription plans and packages for companies. • Payment gateway integration (manual admin approval after payment). • Admin Panel: o Admin login using admin email credentials o View registered companies o View submitted services o Review and mana...

I’m building an internal business tool for our clients and customers, powered by a Node.js back-end and a React front-end. I’ve already mapped out the core architecture and now need a developer who can turn that plan into a clean, production-ready application. Core features we must deliver: • User authentication – secure sign-up, log-in, and role-based access • Data visualization – interactive charts/graphs that pull from our REST endpoints • File upload & download – reliable handling of documents up to 50 MB, with progress indicators The back-end will expose a RESTful API in Node.js (Express is fine), connect to a PostgreSQL database, and include JWT-based auth plus basic rate limiting. On the front-end, React (hooks, functional compo...

I am building a React Native or Flutter driver application—think Uber’s driver app, but with no payment or passenger-matching logic. The core requirement is a smooth integration with Waze for turn-by-turn navigation, wrapped inside a secure, professional-grade driver experience. The scope in a nutshell • Account & authentication: drivers create a profile that they can unlock via Face ID, password or fingerprint. During first-time setup the Face ID photo must be matched against the photo on the driver’s license (you may rely on any reliable on-device comparison API or a lightweight server call—open to your recommendation). • Daily workflow: once logged in, the driver starts a “shift”, completes a short pre-trip vehicle checklist, and is...

My team needs a seasoned full-stack developer to step in as a consultant who can transfer knowledge rather than write code. I’m specifically looking for someone confident across frontend, backend, and database layers who can translate that depth into clear, structured technical training sessions. Your core mission is to design and deliver training that sharpens our developers’ practical skills. Expect to break down real project scenarios, walk through architectural decisions, explain code quality best practices, and answer ad-hoc questions as they come up. We work mostly with JavaScript/TypeScript, React, Node.js, and PostgreSQL, so fluency in these (or closely related stacks) will help you connect quickly with the team. Deliverables • A short training plan outlining top...

We are looking for experienced React and Node.js developers based in Pakistan to join our growing team on a full-time, long-term basis. Requirements: Strong experience with React.js (hooks, state management, API integration) Solid experience with Node.js, , and REST APIs Familiarity with databases (MySQL / PostgreSQL / MongoDB) Ability to write clean, maintainable, and well-structured code Good communication skills in English Ability to work independently and as part of a team Work Schedule: 2nd Shift: 8:00 PM to 3:00 AM (Pakistan time) Remote work Compensation: PKR 100,000 to 150,000 per month, based on experience and performance Why work with us? Long-term opportunity Professional work environment Real-world SaaS projects Stable monthly income If you meet the above requ...

I’m extending an in-house web application and need a React specialist who can work on-site in Hyderabad for the duration of the sprint. The core UI is already scaffolded; what’s missing is the feature layer and the API wiring. Here’s what you’ll be shaping: • Integrate RESTful APIs, GraphQL endpoints, and several third-party services directly into the React codebase, ensuring consistent error handling and state management. • Build secure user authentication flows (signup, login, token refresh) that hook cleanly into our existing backend. • Add real-time notifications—WebSocket or SSE is fine as long as latency stays low and the UI updates smoothly. • Implement reusable data-visualisation components (think charts, graphs, dashboards)...

Looking react developer to design and development of a modern, responsive, and high-performance web application using React.js The work will involve UI development, API integration, and performance optimization. The website will communicate with backend services through RESTful APIs to fetch and manage dynamic data. Performance optimization techniques such as lazy loading, code splitting, and memoization will be applied to ensure fast load times and smooth interactions.

Looking for a Security Specialist to conduct a Grey-Box Penetration Test on a SaaS platform built with Laravel and React. The app helps real estate sourcers package deals using AI and third-party data. The objective of this project is to collate the results of a gray box test, identifying vulnerabilities and weaknesses at minimum in the application's authentication and authorization mechanisms, input validation, state management, access control and encryption of a web application. Testing will focus on identifying potential security risks and providing recommendations for remediation. Scope of Work: • Audit the Authentication/Authorization flow (JWT/Laravel Sanctum). • Test for IDOR and Broken Access Control between user accounts. • Audit API security (integrations ...

I have an existing web application built using React.js (frontend), Node.js (backend), and PostgreSQL (database), and I am looking for an experienced expert to thoroughly manually test the entire application end-to-end, identify and resolve all bugs and errors (frontend and backend), and make the complete UI fully responsive across mobile, tablet, and desktop devices. The work includes detailed manual testing of all modules, user flows, validations, APIs, and edge cases, fixing all discovered issues, resolving console/runtime/server errors, improving UI/UX where required, and ensuring stable performance. The developer must also provide proper documentation, including a structured bug report, details of fixes performed, and a final QA checklist confirming successful testing. Strong experien...

I need my existing Excel file rebuilt as a browser-based application written entirely in Node.js on the back end and React on the front end. The spreadsheet’s rows become records in a database, and every change made to any field must be timestamped and stored so that a full history is available for each record at a glance. Four roles will sign in—IT, manager, associate, and user—through a multi-tier authentication system. Some roles must be able to view and edit data, while others will have view-only access, so robust role-based permission checks are essential. In practice this means the app must let approved staff handle data entry and modification, allow managers to carry out data approval and reporting, and give IT the tools to perform user management without leaving ...

I’m ready to launch a full website that will serve as a dedicated blog for educational content. The goal is to give readers a clean, engaging space to learn, react, and discuss—so a reliable user-comment system is essential from day one. Here’s what I need delivered: • A polished, responsive blog set up on a platform you recommend (WordPress, Ghost, or a similarly straightforward CMS—open to suggestions). • Intuitive post editor with categories/tags so I can publish lessons and tutorials without touching code. • Comment functionality that supports threading, moderation tools, and basic spam protection. • Thoughtful UX and visual design that reinforces an academic feel while staying lightweight for fast load times. • Core on-page SE...

I need a web-based mortgage tool that can: • calculate monthly mortgage payments in real time, • display a full loan amortization schedule, and • compare current terms with a new rate or term so users instantly see potential refinance savings. The core logic must be accurate to the cent, working with both fixed-rate and adjustable-rate assumptions (I’ll supply the formulas for the latter). The front end should feel clean and modern—think smooth sliders, crisp typography, and responsive layout that adapts gracefully from phone to desktop. Two delivery formats are required: 1. A self-contained standalone page I can drop into any site. 2. An embeddable widget (single JavaScript snippet or iframe) so partners can insert the calculator on their pages ...

I’m looking for reliable support on a part-time basis to move my product forward end-to-end. The stack is Django on the back and React on the front, so you’ll be jumping between API work, data models, and the React UI as needed. Everything you ship should be clean, well-tested, and committed through Git. What you’ll actually do • Tackle full stack development tasks: design or update Django views, models, and REST endpoints, then wire them into React components and hooks. • Squash bugs and refactor pieces of the codebase when they slow us down. • Collaborate with me over short stand-ups and async chat; push incremental PRs so reviews stay quick. Acceptance criteria • Code merges without breaking existing tests and includes new coverage where relev...

我已有一款 App，现需要一次到位的技术升级： • 先对现有全栈代码进行全面审查与优化，重点是性能、结构清晰度和可维护性——包括前端界面逻辑与后端接口、数据库调用。 • 接着替换 UI，目标风格是“简约现代”。请在保持品牌识别度的同时，提供干净的布局、统一的色调与清晰的层级关系，可用 Figma、Sketch 或同等级工具交付源文件。 • 最后把应用打包为跨平台版本，确保 iOS 与 Android 均能顺利安装与运行；需要完整的 IPA、APK、签名说明和一套可复现的打包脚本。 交付成果： 1. 优化后的前端与后端代码库 2. 全新简约现代 UI 设计稿及可编辑源文件 3. iOS、Android 安装包及对应签名/配置文件 4. 一份简明的构建与部署文档（含依赖、脚本与常见错误排查） 5.更换注册验证码采用邮箱注册 完成后，我将进行功能与性能验证，只要代码结构清晰、界面契合简约现代风格，并且两端安装包可直接上线，即视为交付成功。

I am building a real-time prediction-markets platform and need an experienced UI developer who is comfortable designing around a WebSocket-first architecture. The work starts with the foundation—authentication, database design, and a clean data pipeline that pulls live odds from Polymarket, Kalshi, and PredictIt via their public APIs. Once the back-end hooks are in place, the focus shifts to the core interface. I want a responsive dashboard that streams prices without page refreshes, surfaces immediate arbitrage opportunities (I’m primarily interested in price differences), and highlights unusually large trades. A lightweight whale tracker that flags outsized orders in near real-time will help users react quickly. Social engagement is equally important. The UI must let user...

I’m ready to have a full-featured event-management site built in React that mirrors the clean flow and modern feel of eventdia.in. The core goal is to let organizers create and manage events while giving attendees an equally smooth experience registering and tracking their plans. What matters most: • A robust event-scheduling flow where an organizer can set dates, times, locations and publish the details instantly. • Seamless attendee registration, with automated email confirmations and a simple, mobile-friendly form. • Secure user accounts for BOTH organizers and attendees so each group logs in to see only what they need—organizers handle their dashboards while attendees check their tickets. Beyond those essentials, the site should load fast, scale eas...

I’m putting together the first-release MVP for a web-based marketplace that matches service providers with customers. The scope is lean, but quality can’t slip: the front-end has to feel effortless, the architecture needs to stay clean for future iterations, and the backend logic must be dependable from day one. My immediate priority is User Experience, so every screen—desktop and mobile—should guide newcomers smoothly from sign-up to booking and payment. At the same time, the codebase should be modular enough that adding new verticals or a mobile app later will be straightforward. I’m happy to collaborate with either a tight two-to-three-person crew or solo specialists who clearly state which slice of the build they’ll own (e.g., React UI, Node/Expres...

I’m looking to commission a full-featured résumé/CV builder that works flawlessly on phones, tablets, and desktops. The site must let a user start from scratch or upload an existing file—Word, PDF, or even an image (JPG/PNG)—and instantly convert it into an editable document. From there, the user will be able to pick from a gallery of modern, professional-looking templates and fine-tune every part of the layout with true drag-and-drop section control. I need to create a Resume Builder Website in LOW BUDGET. Key functions I need to see in the finished product include: • Smart parsing of uploaded files so contact details, education, experience, skills and other common blocks land in the right fields ready for editing. • An intuitive editor where ...