Frontend Development is one of the most important parts of creating a website or digital product. The role of the Frontend Developer is to ensure that a website looks and functions as intended, using their knowledge on HTML, JavaScript, CSS, and other programming languages. They have the ability to implement design into code and create engaging frontend experiences. Whether it’s creating an interactive user interface, building a website from scratch, or simply cleaning up the code of an existing site, the Frontend Developer is essential in delivering excellent results to any client.

Here's some projects that our expert Frontend Developers made real:

  • Creating visually appealing websites with modern elements
  • Integrating external services such as Artificial Intelligence API into existing platforms
  • Building a seamless user experience in video sharing platforms
  • Linking cloud computing with HTML pages to put user data in motion
  • Developing custom mobile applications for IOS and Android devices
  • Creating dashboards along with data feeds for end users
  • Developing Laravel powered webpages along with Vue JS

The skill of a Frontend Developer can truly bring any digital products to life. Our experts have helped many clients to realize their vision, by translating their ideas into sophisticated code. If you are looking for efficient high quality results, now might be the perfect time to post your own project in Freelancer.com and hire a Frontend Developer!

De 159,751 opiniones, los clientes califican nuestro Frontend Developers 4.9 de un total de 5 estrellas.
Contratar a Frontend Developers

Frontend Development is one of the most important parts of creating a website or digital product. The role of the Frontend Developer is to ensure that a website looks and functions as intended, using their knowledge on HTML, JavaScript, CSS, and other programming languages. They have the ability to implement design into code and create engaging frontend experiences. Whether it’s creating an interactive user interface, building a website from scratch, or simply cleaning up the code of an existing site, the Frontend Developer is essential in delivering excellent results to any client.

Here's some projects that our expert Frontend Developers made real:

  • Creating visually appealing websites with modern elements
  • Integrating external services such as Artificial Intelligence API into existing platforms
  • Building a seamless user experience in video sharing platforms
  • Linking cloud computing with HTML pages to put user data in motion
  • Developing custom mobile applications for IOS and Android devices
  • Creating dashboards along with data feeds for end users
  • Developing Laravel powered webpages along with Vue JS

The skill of a Frontend Developer can truly bring any digital products to life. Our experts have helped many clients to realize their vision, by translating their ideas into sophisticated code. If you are looking for efficient high quality results, now might be the perfect time to post your own project in Freelancer.com and hire a Frontend Developer!

De 159,751 opiniones, los clientes califican nuestro Frontend Developers 4.9 de un total de 5 estrellas.
Contratar a Frontend Developers

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    174 trabajos encontrados
    GOFASTDZ.SL -- 2
    6 días left

    Quiero poner en línea un portal especializado en coches de alta gama que combine dos secciones clave: alquiler y venta. Funcionalidades principales • Registro dual: las empresas crean su perfil, mientras que los clientes generan cuentas independientes. • Publicación empresarial: cada compañía podrá subir la descripción detallada de sus servicios y una completa galería de fotos para cada coche. • Búsqueda avanzada: los usuarios filtrarán resultados por ubicación, tipo de coche y rango de precios; el panel debe ser claro y rápido. • Valoraciones y comentarios: tras contratar o comprar, el cliente dejará una calificación y reseña visibles para otros visitantes. &bull...

    €7498 Average bid
    €7498 Oferta promedio
    35 ofertas

    Necesito desarrollar la plataforma online para mi negocio “Rifas Los Panitas”. Quiero que los clientes puedan entrar, registrarse con nombre, apellidos, WhatsApp y correo, elegir la rifa y pagar de inmediato. Al completar el pago deberán recibir sus números aleatorios por correo electrónico; el sistema debe impedir duplicados y, en todo momento, mostrar el porcentaje de números aún disponibles. Funciones clave que espero: • Asignación automática de números sin repetición. • Envío de los números al cliente por e-mail. • Integración de pagos mediante transferencia bancaria y Webpay. • Registro de usuarios y base de datos de participantes. • Panel de administraci&...

    €429 Average bid
    €429 Oferta promedio
    84 ofertas

    Quiero lanzar la página oficial de una coach de fitness online y convertirla en una plataforma de membresías “tipo Netflix”, donde los usuarios activos puedan ver programas de entrenamiento pregrabados desde cualquier dispositivo. Alcance principal • Página de inicio: presentación de la coach, beneficios de la suscripción y botón de registro claro. • Catálogo de programas: listado de rutinas en video accesible mediante un menú de navegación, con opción de filtrar o buscar por nivel o duración más adelante. • Perfil del usuario: área privada para gestionar datos personales, ver el estado de la suscripción y el historial de clases vistas. Funcionalidades clave...

    €406 Average bid
    €406 Oferta promedio
    90 ofertas

    Buscamos: Tech Lead Senior (React/) Part Time - HABLAR ESPAÑOL OBLIGATORIO Descripción del Proyecto: Estamos buscando un Tech Lead Senior con perfil de arquitecto para supervisar el desarrollo de especializado en ecomerce Responsabilidades: Definir y supervisar la arquitectura técnica en 14+ / React. Supervisar a un equipo Asegurar las mejores prácticas de SEO técnico y performance (crucial para nuestro sector). Validar integraciones con sistemas de terceros (Europa/Japón). Realizar revisiones de código y asegurar la calidad de los despliegues en conjunto con DevOps. Requisitos Obligatorios: Mínimo 10 años de experiencia en desarrollo de software. Experiencia experta en (App Router, Server Components). H...

    €969 Average bid
    €969 Oferta promedio
    81 ofertas

    I’m ready to launch an online shop that sells physical products and need a capable hand to get the backend foundations right. Here’s what I’d like done: • Configure a new Shopify store from scratch, linking it to the physical-product catalog I’ll provide later. • Connect my already-purchased domain to Shopify so the site displays at the proper URL. • Set up a professional Gmail-based domain email (via Google Workspace) that matches the store’s branding, ensuring it can send and receive flawlessly. • Walk me through any key settings—payments, shipping zones, tax basics—so I’m confident running day-to-day operations once you’re finished. A clean hand-off with clear documentation or a short screen-share recap wi...

    €150 Average bid
    €150 Oferta promedio
    88 ofertas
    Muslim Dating App
    9 horas left

    1. Project Description We are looking for an experienced freelancer to build a fully functional MVP of a mobile Islamic marriage application for Android and iOS. This app is strictly marriage-oriented (not casual dating) and must comply with specific religious, privacy, and moderation rules, including mandatory wali supervision, gender-based visibility rules, and strong verification. A detailed specification document will be shared after the award, and will be considered the single source of truth for the product. No additional product decisions or deviations should be introduced without explicit approval. The project will be considered complete only when all requirements described in this advertisement and the attached document are fully delivered and working. --- 2. Tools of Choice...

    €572 Average bid
    €572 Oferta promedio
    77 ofertas

    Necesito desarrollar una landing page sencilla que presente un test de 6 preguntas y, al finalizar, muestre un resultado personalizado. Alcance básico • Estructura: una sola página ligera, sin base de datos ni registro de usuarios. • Test: seis preguntas con lógica que ya tengo definida; solo debes integrarla en JavaScript. • Resultado: pantalla final con el texto personalizado que aportaré y un botón que redirija a una colección concreta de mi tienda en Shopify. • Diseño: requiero ayuda para plantear el layout. Quiero un estilo minimalista en blanco y negro, totalmente responsive y optimizado para móvil. • Tecnologías: HTML, CSS y JavaScript puro; nada de frameworks pesados. Yo entregar...

    €133 Average bid
    €133 Oferta promedio
    81 ofertas

    I’m ready to add an advanced, fully-responsive Jotform to my website and need someone who can handle the full setup from logic to look. The form must sit inline on a page—not in a popup or sidebar—and use Jotform’s conditional logic to guide users smoothly through a series of questions. It will capture two key data sets: customer contact details and survey responses to health questions. A clean, modern, minimalist style is essential so the form feels native to the site and remains easy to complete on desktop and mobile. I’ll provide brand colours and fonts; you’ll translate them into the Jotform theme, refine spacing, and ensure every state (hover, focus, error) looks polished. Deliverables: • Fully configured Jotform with conditional branching ...

    €220 Average bid
    €220 Oferta promedio
    33 ofertas
    Real-Money Skill Gaming app
    6 días left
    Verificado

    Senior Development Agency Needed — Real-Money Skill Gaming Platform Project Overview We are hiring a development agency, not individual freelancers, to build a real-money skill gaming platform based on a completed SRS, existing UI wireframes, an active GitHub repository, and existing payment/compliance providers. This platform is a full rebuild from a prior Unity implementation into a custom architecture with: • a React Native player app • web dashboards for Admin, Affiliate, and Customer Support • a server-authoritative real-time game engine • Plaid Identity / Auth / Transfer • PayPal integration • tournament systems, fraud controls, geo restrictions, and support tooling The platform is designed to support large-scale tournament play, multiple...

    €6487 Average bid
    €6487 Oferta promedio
    47 ofertas

    I need a seasoned web designer who can move fast and still deliver a polished, enterprise-grade corporate website. The goal is to give B2B decision-makers immediate confidence in our brand through a clean, intuitive layout that feels modern on every screen size. You must be available to start immediately. You must be able to build modern website without USING AI Show sample of sites that are SAAS like If you are sure you can, please BID

    €29 Average bid
    €29 Oferta promedio
    79 ofertas
    share html to email
    6 días left
    Verificado

    I need a small feature added to my listing portal (). When a visitor clicks Share on any property—example: —their own Outlook compose window should open automatically, already filled with a rich-HTML summary of that exact ad. What the summary must look and behave like • Rich HTML with inline CSS that renders well in Outlook (desktop & web). • Must pull in the property’s main image(s) and description exactly as shown in the screen-capture video (). • Include interactive elements: a prominent “View Full Listing” button and a plain text link, both pointing back to the property URL. Flow I’m after 1. User clicks Share on any listing. 2. A script grabs that listing’s data and builds the HTML snippet on the fly. 3. Outl...

    €105 Average bid
    €105 Oferta promedio
    75 ofertas
    TypeScript Tutor & Mentor Wanted
    6 días left
    Verificado

    I’m just starting my journey with TypeScript and need a patient tutor who can guide me from the absolute basics upward. Because I’m a beginner, I’m looking for someone who can explain core concepts in plain language, walk through live coding examples, and correct my misunderstandings as they happen. We’ll meet online for interactive sessions where you can share your screen, review my small practice projects, and suggest exercises that steadily raise the difficulty as my confidence grows. When I hit errors I can’t decipher, I’d like quick help understanding what went wrong and how to debug the issue properly. If you enjoy teaching, have solid real-world TypeScript experience, and can commit to regular mentoring sessions for the next few weeks (or longer...

    €14 / hr Average bid
    €14 / hr Oferta promedio
    98 ofertas
    COPY ITALKI WEBSITE
    6 días left
    Verificado

    I NEED A COPY WEBSITE JUST LIKE ITALKI AND ITS ALL FEATUREES

    €362 Average bid
    €362 Oferta promedio
    167 ofertas

    Hello, I own a digital course website and I need a developer to implement several improvements and fixes. The platform was built using React (frontend) and Laravel (backend) to the best of my knowledge. The work mainly involves UI improvements, fixing a few system functions, and improving the course management flow. Below are the required changes. Required Changes and Improvements 1. Visual lesson grouping (UI only) Lessons should be displayed in color groups to visually separate learning modules. Example: Lessons 1-10: Blue Lessons 11-18: Red This is only a visual indicator before entering the lesson, not a functional change. 2. Content and link validation Check that all lesson content and links are working correctly. There is an issue where lessons may not save properly when ...

    €294 Average bid
    €294 Oferta promedio
    127 ofertas
    Advanced TypeScript Mentor Needed
    6 días left
    Verificado

    I’m building a complex web application in TypeScript and want a seasoned developer who can both contribute to the codebase and coach me through advanced concepts as we work. Expect our sessions to dive into typing strategies, generics, decorators, build-time tooling, and the subtle performance implications that come with large-scale, strongly-typed front-end code. We will pair program several hours a week so I can immediately apply what I learn to real features; your role is to guide architecture decisions, review my pull requests, and explain the “why” behind each change. Clear explanations, practical examples, and patience are a must, as I’m aiming to deepen my mastery rather than skim the surface. Deliverables: • Clean, well-documented TypeScript cod...

    €112 Average bid
    €112 Oferta promedio
    100 ofertas
    Mini Repair Shop Portal MVP
    6 días left
    Verificado

    I need a slim, login-based multi-tenant portal that lets phone repair shops handle the full life-cycle of a ticket while keeping every record synced to JetForm through its API. Core workflow A Shop Owner (with Sales and Admin roles also available) logs in with Email and Password, creates or selects a Customer, registers the Device with its IMEI, adds the replaced screen or other part, and submits a Ticket. The portal must automatically attach the “Coverage” coverage using a per-tenant setting that toggles the deductible between 0 lek and 3 000 lek. Search & claim Staff later search Tickets by IMEI or customer name, open the record, shoot a short 5–9 second verification video (≤ 31 MB), and file a Claim that is auto-approved for this MVP. All Customers, Device...

    €10 / hr Average bid
    €10 / hr Oferta promedio
    51 ofertas

    I'm seeking an experienced software engineer to create a web-based interactive sales platform. The primary function of this platform will be to allow users to browse an extensive product catalog and conduct detailed searches. Essential Features: - Comprehensive product catalog and efficient search functionality. - Recommendation engine to suggest products based on user behavior and preferences. - Live chat support for real-time customer assistance. Ideal Skills and Experience: - Proficiency in web development technologies (HTML, CSS, JavaScript, etc.). - Experience in building recommendation engines. - Strong background in integrating live chat support systems. - Previous experience in developing sales or e-commerce platforms would be advantageous. Please provide examples of simil...

    €366 Average bid
    €366 Oferta promedio
    149 ofertas
    Ongoing Laravel Task Collaboration
    6 días left
    Verificado

    I’m midway through a Laravel-based web platform and want to build a small roster of three reliable developers I can call on for whatever comes up next. The tasks you’ll receive cover the full stack—Frontend development, Backend development, and plenty of Bug fixing—so you should feel comfortable bouncing between Blade views, Tailwind or Vue components, Eloquent models, controllers, and the occasional stubborn PHP error. How our collaboration works • Whenever a new ticket appears, I’ll message you a concise task list. • If you’re available, you reply with a fixed-price quote and a short timeframe; fast turnarounds are essential because most items are needed ASAP. • Once we agree, I’ll provide SSH credentials to the staging serv...

    €7 / hr Average bid
    €7 / hr Oferta promedio
    114 ofertas

    I have a steady stream of micro-tasks that revolve around building custom sliders and carousels for WordPress sites. For each request I will supply JPEG or PNG references plus basic instructions on what I need. Sometimes a phone call is needed. Your job is to translate that into a lean shortcode or widget written in PHP, HTML, CSS and vanilla JS (or a lightweight library we mutually agree on), enqueue it properly, and hand back a drop-in file that’s ready for production. Because these jobs are small I expect a 48-hour turnaround from the moment I deliver specs. zip with clear install notes or to make amendments to a cloned page in Live is all I need; if anything breaks in the first round of testing, I’ll ping you for an immediate patch. Knowing your way around WordPress h...

    €9 / hr Average bid
    €9 / hr Oferta promedio
    110 ofertas

    I’m working with an existing FlutterFlow template and need it fully connected to Firebase. This includes configuring Firebase Authentication, a Firestore (or Realtime) database, and Cloud Messaging so I can log users in, store data, and push notifications without errors. Once the back-end connection is solid, I’d like a few light front-end touches: update the primary colour palette to match my branding and swap specific wording in the UI—think changing every instance of “event” to “activity” and similar quick text edits. Deliverables • Firebase project configured and linked to the FlutterFlow app (Auth, Database, Cloud Messaging) • Updated colour scheme applied across all relevant screens • Text replacements completed and ver...

    €19 Average bid
    €19 Oferta promedio
    18 ofertas

    The project is already up and running on my local stack (Linux / macOS, nginx as the web server, MariaDB for data, everything container-friendly). If your on windows u will need wsl to run it like I do. please dont bid if u cant set these up. Functionally it does what it should, but the overall layout is amaateur. You’ll work directly in the existing codebase, tweak or rewrite the HTML templates, CSS (or a pre-processor if you prefer), and any lightweight JS that controls visual behaviour. No back-end changes are needed; routing, queries, and business logic stay as-is. Deliverables • New page structures, there are 5 independant html pages and 2 vue (main user web and admin page) that improves hierarchy and readability. • Updated style sheets reflecting a clean, mode...

    €74 Average bid
    €74 Oferta promedio
    24 ofertas
    Elegant E-Commerce Frontend Build
    6 días left
    Verificado

    We are looking for a highly skilled Frontend Developer who has strong expertise in modern web technologies and a good eye for elegant and clean UI design. The ideal candidate must be very comfortable working with HTML, CSS, JavaScript, and TypeScript, and must be able to build responsive, high-quality user interfaces that look professional across all devices. This role is not just about writing code — we want someone who cares about visual quality, performance, and clean architecture. Requirements: • Strong experience with HTML5, CSS3, JavaScript, and TypeScript • Ability to create pixel-perfect responsive layouts • Strong understanding of modern UI/UX design principles • Experience with component-based architecture • Ability to write clean, maintainable c...

    €114 Average bid
    €114 Oferta promedio
    149 ofertas
    Tailwind Website UI Design Needed
    6 días left
    Verificado

    we are building an informative site and already have a backend developer on standby; what I’m missing is a talented designer who works natively with Tailwind. Your task is purely front-end design—no backend code, integrations, or data wiring. Scope of pages • Home • About Us • Contact Us • Services • Industries • Technologies • Case Studies • Insights • TCPAs (compliance content) What I need from you • High-fidelity page mocks created with Tailwind utility classes in mind • Responsive layouts that look consistent from mobile to large desktop • A cohesive visual system (typography, colour palette, component states) that my developer can lift straight into our Tailwind workflow • Well-com...

    €124 Average bid
    €124 Oferta promedio
    113 ofertas

    Project Description: This project is a responsive image slider created using HTML, CSS, and JavaScript. The slider allows users to navigate through multiple images using Previous and Next buttons. It is designed as a simple front-end component that can be used in websites such as portfolios, galleries, or product showcases. Features: Smooth image transition using JavaScript Previous and Next navigation buttons Displays images from a local project folder Shows a message “END” after the last slide Clean and simple user interface Technologies Used: HTML5 CSS3 JavaScript Project Purpose: This project demonstrates basic front-end development skills including DOM manipulation, event handling, and layout design. It is suitable for beginners learning web development and can ...

    €11 Average bid
    €11 Oferta promedio
    54 ofertas

    I’m looking for a skilled Shopify developer who can join me on a full-time basis to drive new projects from concept to launch. The priority is building customer-facing Shopify apps—features that live in the storefront, improve the shopper’s experience, and ultimately lift conversion. Theme tweaks and drag-and-drop edits are not what this role is about; you’ll be writing clean, production-ready code every day. You should feel at home with Liquid, Shopify’s REST & GraphQL APIs, and a modern JavaScript stack (React, Polaris, Node). If you have experience publishing to the Shopify App Store, I’d love to hear how you handled authentication, billing, and the review process. When you apply, focus on your relevant experience: the apps you’ve built, t...

    €199 Average bid
    €199 Oferta promedio
    31 ofertas
    Pot Sales Web App
    6 días left

    I want to launch an online storefront dedicated to pots of every size and style, and it needs to feel just as smooth on a phone as it does on a laptop. A responsive design is therefore non-negotiable. React, Vue, Angular, Svelte—use whatever modern front-end framework you trust, as long as the final result adapts perfectly to both desktop and mobile screens. The core of the job is to build: — A clean product catalogue where I can add, edit, or archive items, each with multiple photos, descriptions, prices, and stock counts. — Intuitive navigation and search so visitors find the right pot quickly. — A password-protected admin area for day-to-day store management. — A lightweight back-end (Node.js with Express, Django, Laravel, or similar) and database of your ...

    €227 Average bid
    €227 Oferta promedio
    59 ofertas

    I’m searching for someone who can comfortably switch between front-end and back-end work while also handling day-to-day bidding on freelance marketplaces for me. The development stack is flexible at this stage, so if you are equally happy working in React, Angular, Vue, Node.js, Django, Rails—or any comparable frameworks—feel free to bring your strengths to the table. Here’s what the role looks like: • Code what’s needed on both the client and server sides, from fixing small UI bugs to adding new database-driven features. • Draft, refine, and submit compelling proposals on freelance platforms, keeping an eye on suitable projects and tailoring each bid to maximise our win rate. • Provide quick progress updates so we can keep momentum and ad...

    €65 Average bid
    €65 Oferta promedio
    37 ofertas

    I’m looking for a skilled Shopify developer who can join me on a full-time basis to drive new projects from concept to launch. The priority is building customer-facing Shopify apps—features that live in the storefront, improve the shopper’s experience, and ultimately lift conversion. Theme tweaks and drag-and-drop edits are not what this role is about; you’ll be writing clean, production-ready code every day. You should feel at home with Liquid, Shopify’s REST & GraphQL APIs, and a modern JavaScript stack (React, Polaris, Node). If you have experience publishing to the Shopify App Store, I’d love to hear how you handled authentication, billing, and the review process. When you apply, focus on your relevant experience: the apps you’ve built, t...

    €219 Average bid
    €219 Oferta promedio
    17 ofertas

    My TypeScript-based app needs a fresh set of eyes. Two problem zones keep slowing development: the user interface occasionally renders the wrong state, and the data-processing layer throws intermittent logic errors. I’d like you to trace the root causes, patch them, then reorganise the affected modules so the codebase is cleaner and easier to extend. Because the troublesome behaviour reveals details of planned features, I’ll share concrete scenarios and test cases once we have a signed NDA. After that you will have full repo access, current build scripts, and unit test coverage reports. Deliverables • Fixed UI and data-processing bugs, confirmed by our existing automated tests • Refactored, well-commented TypeScript modules that follow our linting rules • A...

    €32 Average bid
    €32 Oferta promedio
    42 ofertas

    I need an interactive dashboard tailored for both C-level executives and middle managers that places our sales performance front and center. The end product should pull current figures from our existing systems (I can grant API or export access once we agree which sources make the most sense) and transform that raw data into three easy-to-consume views: dynamic graphs and charts for quick trend spotting, drill-down tables and lists for detailed analysis, and concise summary reports that can be exported or scheduled by email. The layout must adapt to two distinct audiences. Executives want a high-level snapshot with minimal clicks, while middle managers will require the ability to filter by region, product line, and time period. Role-based permissions will keep everything clean—senio...

    €16 Average bid
    €16 Oferta promedio
    20 ofertas

    Projekttitel: Individuelle Marvel-Comic-Sammlungs-Website (mit Fokus auf Spider-Man) – Datenbank + öffentliche Bibliothek + Blog Projektbeschreibung: Hallo, ich möchte eine Website als Geburtstagsgeschenk für meinen Vater erstellen. Er sammelt seit mehreren Jahrzehnten Marvel-Comics, mit einem starken Fokus auf Spider-Man. Das Ziel ist es, eine digitale Plattform zu erstellen, auf der er seine Sammlung organisieren und gleichzeitig mit anderen Comic-Enthusiasten teilen kann. Die Website soll sowohl als persönliche Sammlungsdatenbank als auch als öffentliche Comic-Bibliothek dienen, in der Besucher klassische Marvel-Comics durchsuchen und entdecken können. Benötigte Hauptfunktionen: 1. Comic-Sammlungsdatenbank Mein Vater soll Comics einfach in ...

    €169 Average bid
    €169 Oferta promedio
    45 ofertas
    Resolve Clerk Login Loop Issue
    5 días left
    Verificado

    I’m building a web app on Replit and deploying it on Railway. Clerk’s components already render on the site and the user can submit their credentials, but after the redirect the page never reaches the dashboard—it just sits on the loading screen and repeats the sign-in loop. There’s no visible error message in the browser; the session simply never finalises. What I need • Review my current Clerk configuration (frontend and backend keys, JWT settings, callback URLs, environment variables). • Check the Replit dev environment versus the Railway production build for any mismatched origins or missing secrets. • Correct any routing or middleware that might be blocking the session token from persisting. • Confirm that, once fixed, a successful ...

    €19 Average bid
    €19 Oferta promedio
    50 ofertas

    I have created a small offline app and would like someone to optimize it. The app is designed to display connections between companies. I enter a company and employees, and I have several roles, such as managing directors with time periods, shareholders, and interpreters who were involved in the company’s formation. The main issue I am having is with the visualization. I would like to create a company organigram in which the company with the most connections is placed in the center, and the companies with fewer connections are arranged outward around it. The connections should be labeled so that the structure is easy to understand. It should also be possible to move the diagram with the mouse, zoom in and out by scrolling, and use a search field to look up a company. The organigram ...

    €24 Average bid
    €24 Oferta promedio
    81 ofertas

    I need a web-based oddsmatcher focused solely on sports betting. The tool must pull live odds from multiple bookmakers, refresh them in real time, and present the data in a clean, responsive interface that works in any modern browser. A built-in betting calculator should instantly show potential profit or liability for matched-betting scenarios, while automated alerts—by email, browser push, or both—must notify users the moment a profitable or arbitrageable spread appears. For the back end, you will aggregate odds through official or publicly available bookmaker APIs, normalise the data, and keep latency to a minimum. The front end should be lightweight yet polished—React, Vue, or a similarly modern framework is fine so long as the UI remains intuitive on desktop and mob...

    €438 Average bid
    €438 Oferta promedio
    128 ofertas

    I’m ready to bring a new full-stack engineer onto the team and would like to work with someone based in Pakistan. Day to day you’ll be handling both front-end and back-end tasks, moving comfortably from interface tweaks to API design, while keeping code quality and clear communication at the heart of everything you do. You should feel confident writing clean, maintainable code, troubleshooting production issues, and explaining your decisions in straightforward English during stand-ups or chat. Whether the stack leans toward JavaScript frameworks, Python, or another modern toolset, I value solid problem-solving skills and proactive collaboration more than any single technology badge. If you’ve shipped web apps end-to-end, enjoy iterative development with frequent feedbac...

    €18 / hr Average bid
    €18 / hr Oferta promedio
    104 ofertas

    Job Title: Senior Full-Stack App Developer for Debugging, UX Fixes, and Stability Improvements Job Description: I’m looking for an experienced full-stack developer to review and refine an existing mobile/web application that is already built and functional but needs polishing and technical corrections. The goal is to identify and resolve smaller issues that affect user experience, logic flow, and overall stability. This is not a project from scratch. The application is operational, but it requires a developer who can carefully audit the system, locate inconsistencies, and implement clean fixes. Responsibilities include: Reviewing existing frontend and backend logic Fixing UI/UX inconsistencies and interaction bugs Ensuring user actions trigger the correct outcomes across the pl...

    €45 / hr Average bid
    €45 / hr Oferta promedio
    139 ofertas

    I’m looking for an experienced Svelte / SvelteKit developer to collaborate with clients. The ideal person is comfortable working independently, communicating clearly in English, and joining project discussions when needed. Most projects involve building or improving modern web applications using Svelte or SvelteKit, so strong hands-on experience with these technologies is important. Responsibilities Develop and maintain web applications using Svelte / SvelteKit Work with APIs and integrate frontend with backend services Write clean, maintainable, and scalable code Debug and improve performance of existing applications Communicate clearly about technical decisions and progress Requirements Strong practical experience with Svelte and SvelteKit Previous freelance or contract projec...

    €388 Average bid
    €388 Oferta promedio
    164 ofertas

    I need the core functionality of a desktop program rebuilt as a browser-based application. The application is available here: The only features that must cross over are the real-time data routines: live data updates streamed from our internal databases and on-the-fly analytics that users currently rely on for quick decision-making. Your work starts with analysing how the existing desktop code ingests, processes, and visualises data, then designing a responsive web front-end and a robust back-end that replicate the same speed and accuracy inside any modern browser. WebSocket or equivalent push technology will be essential to keep latency low. I will provide access to the current source, schema details for the internal databases, and test data. The finished web app should: • Conn...

    €19 / hr Average bid
    €19 / hr Oferta promedio
    162 ofertas

    I have a MERN social media app with a Quill-based rich-text editor. Images take over 1 minute to appear inside the Quill editor on the FIRST upload, but all uploads after that appear instantly. I need a React/MERN expert to fix this behavior — or replace Quill with a better editor without breaking any existing UI or functionality. What I Need Option A: Fix Quill and Google Sign-in Functionality & Delays First image upload must appear instantly (≤1 sec). Subsequent uploads already work — don’t break them. Google Sign-in must load fast and log users in successfully blazingly fast. OR Option B: Replace Quill Google Sign-in must load fast and log users in successfully blazingly fast. Use TipTap / Lexical / TinyMCE / Slate only if: Looks and behaves the same or...

    €28 Average bid
    €28 Oferta promedio
    80 ofertas

    Description: I have a React authentication application that needs several bugs fixed and incomplete functionality completed. The project uses React, React Router, and Axios. Issues to Fix: Login Form Bug - Password input label has incorrect htmlFor attribute pointing to "email" instead of "password" Empty Login Handler - The handleSubmit method in needs implementation for API authentication call and error handling Incomplete User State Management - has empty setCurrentUser and logout methods that need proper token handling and localStorage integration Missing Profile Data Fetch - has empty componentDidMount that should fetch user data via Axios Class Naming Inconsistency - class is named "Contacts" instead of "ContactsContainer" Requireme...

    €18 Average bid
    €18 Oferta promedio
    99 ofertas

    I need a custom module built for the JoomDonation eShop extension on Joomla. The module / plugin will give us the ability to hide or show at the product page any of the extra-custom fields we need . See attached files to see how the fields are created at general configuration, how the are shown at product edit page and how they are shown on frontend product page. Now we create as many extrafields needed ...but the are all shown on product page ...if we do not want one or more of them to show on frontend it is not possible...they all show. We want to be able to hide one or more in the front end ...at the backend at product edit they must show all of them...but in the front end to be able to hide any of them we do not want to be shown at customers. This module should be compatible with eS...

    €138 Average bid
    €138 Oferta promedio
    125 ofertas

    I’m preparing a significant refresh of my existing site and need a developer who feels equally comfortable in PHP on the back end and JavaScript on the front end. The core focus of this upgrade is the design: I want a complete layout overhaul while keeping the current business logic intact. I’ll share a screenshot of the present interface so you can immediately spot the pain points and propose a more intuitive, visually engaging structure. Here’s what I expect once we start: the new template should slot cleanly into my current PHP codebase, remain fully responsive, and be scripted in clean, modern JavaScript without disrupting existing functionality. If you have preferred frameworks or libraries that speed development—whether that’s React, Vue, or a lightweig...

    €867 Average bid
    €867 Oferta promedio
    333 ofertas

    I'm in need of a proficient developer to create a Satta Matka app. The application will be available on Android and Web platforms. Your responsibility as the chosen developer will be to deliver a fully functioning app with a user-friendly admin panel to manage two starline games and main market games.

    €418 Average bid
    €418 Oferta promedio
    22 ofertas

    <!DOCTYPE html> <html> <head> <title>Image Slider</title> <style> body{ font-family: Arial; text-align:center; } .slider img{ width:500px; height:300px; display:none; } </style> </head> <body> <h2>Image Slider</h2> <div class="slider"> <img src=""> <img src=""> <img src=""> </div> <br> <style> .slider img{ width:500px; height:300px; display:none; } .slider img:first-child{ display:block; } </style> <br> <button onclick="prev()">Previous</button> <button onclick="next()">Next</button> <script> let index = 0; let slides = ("...

    €9 Average bid
    €9 Oferta promedio
    45 ofertas

    I want visitors to open my site, create a quick account, and immediately start chatting with Grok about one very specific topic that I will preload into the model. Your job is to wire the Grok API into the site, make sure users can sign up or log in, and allow them to launch one or multiple conversation threads that stay tied to their profile. Because I haven’t locked us into a particular CMS or location for the widget, you’re free to recommend the cleanest technical path—whether that means a lightweight pop-up on every page, an embedded window on just a few sections, or something in-between. What matters is that the chat feels native, remembers the user’s context, and always answers from the custom knowledge base I provide. You’ll handle: • Secure acco...

    €394 Average bid
    €394 Oferta promedio
    277 ofertas

    My React-based appointment platform is almost ready to ship, but two stubborn issues in the scheduling logic are blocking release: • The time-slot generator sometimes shows options that should be unavailable. • When a user hits “Book,” the request hangs far longer than it should. I need a developer who can dive straight into the existing React frontend (hooks and context), trace the slot-generation flow through to the scheduling API, and deliver a clean, well-tested patch. You’ll verify that only legitimate slots appear under every timezone/working-hours scenario and profile the booking call so the confirmation returns promptly. Deliverables (acceptance criteria) 1. Updated logic that always publishes correct, conflict-free time slots. 2. Booking operat...

    €4 / hr Average bid
    €4 / hr Oferta promedio
    44 ofertas

    Wichtig - erst lesen !!!! Dann Gebot abgeben - keine Nachbehandlung- ersparen sie uns beiden bitte Zeit und ärger!!!! Ich benötige innerhalb von fünf Tagen eine komplett funktionsfähige Website im Responsive Design. Sämtliche Seiten-Layouts, Grafiken und Grob-Codes liegen bereits in Figma vor: (deutsch & englisch). Was noch fehlt, ist die saubere Umsetzung – Frontend und Backend – sowie ein schlanker Admin-Bereich. Kernfunktionen für das öffentliche Portal • Benutzeranmeldung • Mitgliederverwaltung • Statistikberichte (Dashboard für eingeloggte User) Erweiterter Admin-Bereich • Benutzerinformationen bearbeiten • Mitgliedschaftsverwaltung (Anmeldung / bezahlte Mitgliedschaften) • Sta...

    €1026 Average bid
    €1026 Oferta promedio
    103 ofertas

    I am building Meet-sphere, a browser-based video calling platform geared toward friends and family. You can preview the current proof-of-concept here: The core is already in place—ReactJS on the front end, an Express/NodeJS API backed by MongoDB, and peer connections over WebRTC managed through with token-based authentication. I now want to move from demo to production quality by adding: • Screen sharing that works smoothly on Chrome, Firefox, and Safari • Multi-user conferences (3–6 participants in a room without noticeable lag) • An integrated text chat pane, delivered over the existing socket layer and persisted to MongoDB for reloads The codebase is modern React (hooks, Context, Vite), and the server runs on Express with JWT auth. You’ll have...

    €3 / hr Average bid
    €3 / hr Oferta promedio
    15 ofertas
    Implement PDF Download Feature
    5 días left
    Verificado

    I need a clean, one-click PDF download added to our existing software application. When any visitor hits the new “Download” button, the latest PDF should be served immediately—no login prompts or extra hoops. You’ll receive the current repo and a quick tour of its structure. Your job is to slot the feature in without disturbing what’s already there, following our naming conventions and UI style. Deliverables: • Fully functional download button wired to the PDF generator or static file, as appropriate to the codebase • Well-commented code committed via Git with clear commit messages • A short README outlining installation steps, changed files, and any environment variables Acceptance: I can pull the branch, build, deploy, click the button,...

    €114 Average bid
    €114 Oferta promedio
    115 ofertas

    I am building BrainoOS, a browser-accessible operating system that behaves much like a traditional desktop environment yet lives entirely online. The core milestone is a functional prototype where users can sign in and instantly find themselves in a self-contained workspace for web development—think code editor, console, and live preview running inside the OS window system. Key goals I need tackled: • A modular desktop-style interface rendered in the browser (React, Vue, or similar front-end frameworks are fine as long as the result is smooth and responsive). • Secure user sessions with persistent storage so projects and personal settings survive a logout. • Integrated web-development tools: file manager, syntax-highlighting editor, and an embedded terminal that...

    €8 / hr Average bid
    €8 / hr Oferta promedio
    45 ofertas

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