JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.

A Javascript developer on Freelancer.com can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.

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

  • Developed interactive websites & apps with detailed user accounts experience
  • Created powerful applications that streamline complex data into actionable insights
  • Built custom Windows and Mac software designed to fit client specifications
  • Developed mobile apps that enables customers to access data from their phones
  • Connected databases to web interfaces with easy input/output functionality
  • Optimized existing code for faster loading pages and smoother user workflows

Javascript Developers on Freelancer.com know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, Freelancer.com is the place to post your project. Hire our expert Javascript developers today!

A partir das avaliações de 654,569, os clientes avaliam nosso Javascript Developers 4.9 de 5 estrelas.
Contratar Javascript Developers

JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.

A Javascript developer on Freelancer.com can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.

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

  • Developed interactive websites & apps with detailed user accounts experience
  • Created powerful applications that streamline complex data into actionable insights
  • Built custom Windows and Mac software designed to fit client specifications
  • Developed mobile apps that enables customers to access data from their phones
  • Connected databases to web interfaces with easy input/output functionality
  • Optimized existing code for faster loading pages and smoother user workflows

Javascript Developers on Freelancer.com know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, Freelancer.com is the place to post your project. Hire our expert Javascript developers today!

A partir das avaliações de 654,569, os clientes avaliam nosso Javascript Developers 4.9 de 5 estrelas.
Contratar Javascript Developers

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    524 trabalhos encontrados

    Preciso de um desenvolvedor para reestruturar o site de nossa ONG com o tema "Alone". O site deve servir como plataforma informativa e de engajamento, com focos em captação de fundos e recrutar voluntários. O site deve incluir: - Seções: Sobre Nós, Eventos Futuros, Histórias de Sucesso, Textos Religiosos, Publicação de Boletim Mensal - Funcionalidades: Registro de Participantes, Áudio/Vídeos de Eventos, Publicação de Boletim Mensal, Blog de Temas Espíritas (sem opção de contato), Páginas Dedicadas para 2 Filiais Habilidades Ideais: - Experiência em desenvolvimento de sites, especialmente para ONGs - Familiaridade com o tema "Alone" ...

    €10 / hr Average bid
    €10 / hr Média
    33 ofertas

    Engenheiro de IA Sênior - Otimização de Pipeline de Longo Contexto (Python) Descrição do Projeto: Estamos buscando um especialista em IA para destravar e otimizar nosso pipeline de análise de matrículas imobiliárias. O sistema é construído em Python e utiliza o Gemini 1.5 Pro/Flash para processar documentos que podem chegar a centenas de páginas. O foco é garantir que o modelo processe o contexto integral sem truncamento e com rigor lógico. Principais Desafios e Responsabilidades: * Sanitização e Ingestão: Refinar a extração de texto (OCR/Parsing) para evitar estouro de buffers e garantir que o texto completo chegue à IA via Python/MySQL (uso de LONGTEXT). * G...

    €105 Average bid
    €105 Média
    8 ofertas

    We need an experienced WordPress/WooCommerce developer with proven experience on **Aelia (WooCommerce Currency Switcher)** to fix a critical currency switching issue on our live store. **Website:** **Platform:** WordPress + WooCommerce **Currency plugin:** WooCommerce Currency Switcher (Aelia) **CDN/Security:** Cloudflare (Pro) **Server-side cache:** NONE (no Varnish, no Redis, no cache plugins) ### Current setup * WooCommerce Currency Switcher (Aelia) is active. * WooCommerce Cache Handler is active and set to **“Enable Ajax loader.”** DISABLE * Cloudflare cache rules follow a dynamic setup: * HTML should be bypassed whenever the cookie **aelia_cs_selected_currency** is present. * “Cache Everything” is excluded on all shop-related URLs (product, cart, chec...

    €17 Average bid
    €17 Média
    23 ofertas
    Python Web Scraping to CSV
    6 dias left
    Verificado

    I have a public-facing website that I need scraped end-to-end. The site is open (no login), but the content is split across multiple pages, so your script will have to detect and follow pagination automatically. Here is exactly what I expect: • A clean, well-commented Python script (requests/BeautifulSoup, Scrapy, or Selenium—your choice) that visits every page, captures the required fields, and writes them to a neatly structured CSV. • The final CSV containing all rows pulled from the site. • A short README that tells me how to run the script and change the target URL or output path if needed. Code quality matters to me: no hard-coded absolute paths, clear variable names, and graceful error handling so the run doesn’t stop if a single page fails. Th...

    €101 Average bid
    €101 Média
    77 ofertas

    We are looking for a developer to build a small restaurant web application using React for the frontend and Node.js for the backend. The application will allow users to browse the restaurant menu, view item details, add items to a cart, and place orders online. Customers should be able to enter their contact information during checkout, and once an order is submitted, the system should securely process the payment and store basic order details in the database. After a successful order, an automated confirmation email must be sent to the customer using a third-party email service. The backend will handle order management, payment processing, and email integration, while the frontend should provide a clean and responsive user experience. The focus of this project is functionality and prope...

    €132 Average bid
    €132 Média
    203 ofertas

    I need a senior-level Flutter engineer (5 + years hands-on) to take charge of a peer-to-peer mobile application that must run seamlessly on both iOS and Android from a single codebase. The core job is to own feature development end-to-end: architecting clean Dart code, wiring up real-time data flow, refining UI components for multiple screen sizes, then shipping fully tested builds to the App Store and Google Play. The project already has a high-level product roadmap; you will turn that vision into production-ready widgets, state management (Bloc or Provider is fine), secure API integrations, and smooth animations. Regular collaboration with our designer and back-end team happens in Slack and Jira, with code reviews in Git. I release milestones every two weeks, and each sprint should clos...

    €1789 Average bid
    €1789 Média
    48 ofertas

    My current script fetches the day’s class reservations straight from PHP-side variables that come out of the database. Right now it lists only the timeframes that already have a booking. To help our professors add new participants without juggling a separate tool, I want the same page to render every timeframe for the current day—booked or not. What I’m after • If a slot already has a reservation, paint that row with a light-green background to make it stand out. • Show all timeframes and have everything working the same way so a participant can be added on any timefreame. Before you dive into code, send me a short note outlining how you would tackle it (query tweaks, loop logic, CSS changes, whatever you think best). Once we agree, update the single PHP fi...

    €20 Average bid
    €20 Média
    55 ofertas

    Plaid + Chase Connectivity Issue via API Plaid + Chase OAuth Integration — "Invalid Credentials" After Successful OAuth Flow The Problem: We have a production Plaid integration (Node.js/Express) that connects bank accounts via Plaid Link. American Express and Capital One connect and sync perfectly. Chase fails every time with "Username or password incorrect" AFTER the OAuth flow completes successfully. The Flow: 1. User clicks Connect Bank → Plaid Link opens 2. User selects Chase → Plaid fires OPEN_OAUTH event 3. User redirects to Chase's website and logs in successfully 4. Chase redirects back to our app with oauth_state_id 5. Plaid Link re-opens with receivedRedirectUri 6. Plaid shows "Username or password incorrect" — connectio...

    €30 / hr Average bid
    €30 / hr Média
    136 ofertas
    Fix Elementor Layout Shifts
    6 dias left
    Verificado

    I want someone to fix my site optimization again. There are issues with layout shift on the page, and Elementor isn’t running reliably. It shifts all the containers every time the page loads. The site optimization is handled via Perfmatters, and caching is done with the LiteSpeed Cache plugin. Even if both are disabled, the issue still happens. So it must be related to WordPress and Elementor.

    €24 Average bid
    €24 Média
    100 ofertas

    We would like to create a landing page for our air conditioning business. Here is the detailed scope: Business Overview: We supply, install, and maintain all types of air conditioning systems for residential and commercial properties, including: Ducted systems Split systems Multiple systems VRV systems Page Structure & Features: Hero Section: Headline: “Your Air Conditioning Specialist” Subheadline: “Supplying, Installing, and Maintaining Ducted, Split, Multiple, and VRV Air Conditioning Systems for Homes & Businesses” Prominent Call-to-Action (CTA) buttons: “Request a Quote” and “Call Now” Optional background image showcasing air conditioning units in homes/offices Service Blocks: Each of the following should have its own square bloc...

    €83 Average bid
    €83 Média
    194 ofertas

    I’m refreshing my GitHub profile for upcoming university applications and I need a concise, well-architected Django backend that illustrates how I approach data modelling, API design and clean code. Tech stack is fixed: Python 3.x with Django (latest LTS). Because this is a portfolio piece, clarity, documentation and sensible project structure matter more than production-grade scaling or DevOps extras. Scope of the system The app should let authenticated users track items in and out of stock and generate simple reports. I expect models for items, categories and basic stock movements, JWT or session-based authentication, and a small reporting module summarising current inventory levels and movement history. Deliverables • Django project and apps organised with reusable, ...

    €19 Average bid
    €19 Média
    9 ofertas
    Website AI Tutor Chatbot
    6 dias left
    Verificado

    I’m looking to embed an AI-powered tutor directly into our internal web portal so children can ask homework questions and receive clear, age-appropriate guidance 24/7. The chatbot will be available only on the website—no mobile or social integrations are needed right now—and its single focus is Homework Help rather than full interactive lessons or long-term progress tracking. The experience I’m aiming for feels like a friendly subject-matter coach: the bot should recognise the child’s grade level from the conversation, break problems into manageable steps, encourage the student to reason before revealing answers, and supply worked examples or hints instead of simply giving solutions. Safety is critical, so I need content filters, refusal handling, and basic s...

    €766 Average bid
    ADC
    €766 Média
    69 ofertas

    I’m ready to launch a new website and need a developer who can take the project from initial concept through deployment. The site’s exact purpose, visual style, and feature set are still open for discussion, so I’m looking for someone comfortable guiding those early decisions as well as handling the coding itself. You should be able to advise on the most appropriate platform or framework—whether that ends up being WordPress, a custom HTML5/CSS3 build, React, or another stack—and then translate our agreed-upon plan into a responsive, fast-loading site. I’ll count on you for best-practice recommendations around security, SEO fundamentals, and performance tuning. Deliverables • A polished, fully functional website deployed on my hosting account ...

    €45 / hr Average bid
    €45 / hr Média
    152 ofertas

    I need a custom Deneb visual in Power BI. The data will live entirely inside the visual specification—no Excel sheets, databases, or APIs to connect—so you can reference it directly as inline arrays within the Vega-Lite JSON. I've attached a mockup of how I need this visual to look, I've also attached some Vega Lite code which I've attempted to make work but it is a starting point, the code also contains an in-line dataset

    €135 Average bid
    €135 Média
    83 ofertas

    I want to launch a fully-featured, cloud-hosted lottery platform built on a hardened Node.js backend with a reliable database layer. New players will sign up with a classic email-and-password flow, then complete KYC before they can fund their wallet or join a draw. The exact KYC data points can be finalised together, but the process must be seamless and compliant. Core flow • A user tops up an internal wallet via PayPal (gaming category enabled), buys entries, and watches their balance update in real time. • On draw day a server-side, provably-fair randomiser selects winners; every draw, ticket purchase, and payout is written to an immutable audit log. • From my side I need an admin dashboard that shows live player stats, transaction history, and lets me trigger or sc...

    €61 Average bid
    €61 Média
    8 ofertas

    Project: HeyKIVI – AI video communication platform (MVP completed), now moving into post-MVP scale-out. Main goals: Implement multi-tenancy + feature entitlement (customers only see their own use cases/features) based on Admin UI. Deliver continuous new use cases (frontend tile + backend workflow + HeyGen integration). Provide ongoing platform maintenance (bugfixing, hardening, small improvements). Pricing model: Fixed package for multi-tenancy/entitlements. Flat rate per new use case (continuous stream, varies by customer). Hourly rate for anything beyond these two fixed scopes. Tech stack: TypeScript, (API/backend), React 18 + Vite (frontend), PostgreSQL + Prisma, Docker Compose, Nginx, MinIO (S3), GitLab CI/CD, hosted on Hetzner (EU/Germany). Key responsibilities: backend ...

    €521 Average bid
    €521 Média
    228 ofertas

    I am seeking an experienced Salesforce B2B and B2C Commerce Developer to design, develop, and implement scalable Salesforce Commerce and Experience Cloud solutions for global enterprise clients. This is a remote contract role requiring availability during Eastern Standard Time (US 8am–5pm). Responsibilities Design and develop solutions using Salesforce B2B Commerce Cloud and B2C Commerce Cloud (SFCC) Build scalable, high-performing storefronts Develop custom components, controllers, pipelines, cartridges, and integrations Implement business logic using Apex, JavaScript, and Salesforce APIs Configure and customize Salesforce Experience Cloud for B2B portals Integrate Salesforce Commerce with external systems (ERP, OMS, Payment, CRM, etc.) Ensure performance, scalability, and ...

    €392 Average bid
    €392 Média
    82 ofertas

    I am building a full-stack web application that will function as a complete job portal, coded in Java. The core of the project is already outlined; what I need now is focused development support to turn the concept into a production-ready site. Scope of work You will take charge of three key modules: • Job listings & advanced search – searchable by title, location, salary range, and tags, returning results quickly even with a large data set. • Resume upload & management – secure storage of résumés (PDF/Doc), profile editing, and version control for candidates. • Employer dashboard – tools for posting jobs, reviewing applicants, and tracking application status in real time. I’m happy to integrate whichever mainstream ...

    €8 / hr Average bid
    €8 / hr Média
    62 ofertas

    I have a legacy app in Java Struts and need help with supporting and maintaining it. Its done with legacy JS for front end and used Java Struts + Hibernate connecting to mysql and elastic search for the backend.

    €9 / hr Average bid
    €9 / hr Média
    52 ofertas

    I own VK OPTIC POINT and I’m ready to launch a small, fast-loading website that steers people straight to our brick-and-mortar shop. Everything will be in English and designed with a classic, elegant look that mirrors the feel of our showroom. Pages and purpose • Home – a welcoming message plus a brief store overview, prompting visitors to drop by. • Products – sections for the key features and benefits of each frame or lens type, grouped by brand and category, with space for short customer reviews. • Services – eye-testing, repairs and any future add-ons. • About Us – our story, credentials and team. • Contact – simple form, phone, e-mail and map. Essential features (deliverables) - WhatsApp chat button floating on...

    €84 Average bid
    €84 Média
    49 ofertas

    I am building an AI-powered chatbot and need a partner who can shape both the interface and the underlying front-end code. My goal is to launch a conversational experience that feels intuitive, polished, and on-brand, whether it ends up living on a website, inside a mobile app, or another channel we decide together. Here is what I expect: • A complete UX flow mapped from greeting to hand-off or completion • Wireframes followed by high-fidelity, responsive screens (Figma or similar) • Front-end implementation in clean, production-ready HTML, CSS, and JavaScript (React or Vue preferred, but I’m flexible) • Smooth hand-off hooks so the UI connects easily to my AI back end (OpenAI API) • Clear notes on any micro-interactions, animations, or accessibili...

    €219 Average bid
    €219 Média
    44 ofertas

    Mi sitio ya está diseñado y funcional; solo necesito pulir los últimos detalles antes de publicarlo. 1. Formularios – Implementar un formulario de contacto basico 2. Estética y maquetación – Ajustar diseño y disposición de secciones para que todo luzca coherente y ordenado. – Incluir ligeros retoques visuales si es necesario para mantener la línea gráfica existente. 3. Adaptación móvil y tablet – Garantizar que imágenes, multimedia y todo el contenido textual respondan correctamente en pantallas pequeñas y medianas, sin romper la estructura. 4. Estructura adicional – Crear un footer completo con enlaces a redes sociales. – A&ntil...

    €149 Average bid
    €149 Média
    78 ofertas

    I want a clean, modern portfolio site that presents my projects, skills, and contact details at a glance. The design needs to be fully responsive so it looks just as good on mobile as it does on desktop, with fast-loading pages and smooth navigation. I’m open on the tech stack—HTML / CSS / JavaScript, React, or a lightweight CMS such as WordPress are all acceptable as long as the final build is easy for me to maintain. What matters most is an uncluttered layout, strong typography, and space for high-resolution visuals without compromising speed. Key deliverables: • Complete frontend and backend code (if applicable) • Home, About, Work/Projects, and Contact pages populated with placeholder content I can swap later • Basic SEO setup (metadata, alt tags, seman...

    €983 Average bid
    €983 Média
    127 ofertas

    İşimizi çevrimiçi ortama taşımak için sıfırdan modern bir kurumsal web sitesine ihtiyacım var. Site hem masaüstünde hem de mobilde hızlı, güvenli ve şık görünecek; kullanıcı dostu arayüzü sayesinde ziyaretçilerin aradığını kolayca bulmasını sağlayacak. Temel gereksinimler • Ana sayfa: Markamı öne çıkaran etkileyici, hızlı açılan bir karşılama bölümü • Sipariş formu: Ürün veya hizmet taleplerini doğrudan siteden toplamamı sağlayacak, kolay doldurulabilir alanlar ve güvenli gönderim • Etkinlik sayfası: Yaklaşan etkinlikleri tanıtacağım, tarih–lokasyon ve kayıt bağlantılarını yönetebileceğim dinamik bölüm • Fotoğraf galerisi: ...

    €1596 Average bid
    €1596 Média
    95 ofertas

    I’m looking for a designer–developer who can turn my data-scraping and logistics support business into a single, modern and sleek landing page that makes visitors hit the “contact” button. The page must look polished on desktop and mobile alike, load fast, and present our value proposition in seconds. Key sections I need built in: • Hero strip with a concise headline, background image or graphic that hints at data automation / freight flow • Services Offered – short, punchy blurbs outlining data scraping, data enrichment, route optimisation and 24/7 logistic support • About Us – a brief narrative plus one photo or icon set to add personality • Contact Form – name, email, message; when submitted it should send straight to ...

    €17 / hr Average bid
    €17 / hr Média
    239 ofertas

    Hi, I am looking for a reliable and experienced freelancer for the development (and light design where required) of two simple, clean, and appealing websites for a Muslim NGO. The main focus of both websites must be donations, with a smooth, secure, and hassle-free user experience. The websites must be mobile-friendly and easy to navigate. # Website 1 – Islamic Charity Platform This website will focus on: * Zakat donations * Sadaqah * Friday (Jumu’ah) giving * Other Islamic charitable causes It must include a Zakat Calculator (accurate and user-friendly). If the developer understands *Islamic rules related to Zakat and charity, it will be highly preferred to ensure proper structure and compliance. #Website 2 – Musallah & Quran Academy This website will focus o...

    €143 Average bid
    €143 Média
    192 ofertas
    FUELZ PRO
    6 dias left

    I’m ready to take my Indian D2C brand online and need a full-stack developer who can turn the entire buying journey into a smooth, sales-driven experience. The focus is simple: increase sales of our physical products through a fast, reliable, and easy-to-use website. Here’s what I have in mind. Customers should be able to browse a clean catalogue, add items to a shopping cart without friction, check out via popular Indian payment methods (UPI, debit/credit cards, wallets), and immediately receive an order-tracking link they can follow in real time. Behind the scenes I’ll need an admin dashboard where my team can update products, view orders, and generate basic sales reports. To keep the site scalable and future-proof, use the modern stack you’re most comfortab...

    €91 Average bid
    €91 Média
    24 ofertas

    I am building a React-based analytics dashboard that blends traditional e-commerce features with rich, interactive visualisation. The frontend should expose three core user flows—product catalog browsing, a lightweight shopping cart, and secure user accounts—while simultaneously presenting business metrics through charts, tables, and geographic maps. React 18 will be the framework of choice. Feel free to introduce TypeScript, Redux Toolkit (or Zustand) for state, and a component library such as MUI or Ant Design so long as the final bundle stays lean. For the visual layer, any proven library—Recharts, , Victory, or D3—works, provided the components are responsive and can be themed to match the existing style guide. Key expectations • Clean, component-driven...

    €538 Average bid
    €538 Média
    67 ofertas

    I have an existing Google Sheet that already captures the core data for my project. What I now need is a lightweight web app—built in HTML, CSS and JavaScript (or Google Apps Script HTML Service)—that connects to this sheet for real-time reading and writing. Here is how I picture the flow: • A clean, responsive front-end form where users can enter or edit records. • Direct integration with the current Google Sheet via Apps Script, the Sheets API, or whichever approach you find most efficient. • Basic navigation that lets me expand later into dashboards or reports. You will work alongside me, sharing code in a version-controlled space (GitHub or similar) so we can iterate quickly. I can supply the Sheet structure, sample data and access credentials as soon ...

    €40 Average bid
    €40 Média
    42 ofertas

    Hello, I am reaching out because I am currently building an agency specialized in creating websites for interior renovation contractors in the French and Belgian markets. I manage the entire client acquisition process, business relationships, and project scoping. I am looking for a reliable freelance developer to collaborate with on website production, following a simple, structured, and repeatable workflow. We operate within specific niches, which allows us to work with very clear briefs that are often based on the same framework. The goal is to build a smooth collaboration with minimal back-and-forth and projects that can be executed efficiently. We are therefore looking for a freelance web developer with the intention of establishing a long-term partnership, with the opportunity to ...

    €387 Average bid
    €387 Média
    299 ofertas

    I want to give my customer-facing multi-commerce app a fresh, premium look without touching any of the underlying business logic. The current build is React.js; I simply need the entire user interface re-imagined, delivered both as a polished design file and as ready-to-drop-in React components. Scope & vision • Mobile-first layouts that gracefully expand into desktop-first views • A white-dominant palette with subtle blue accents for a clean, modern feel • Industry-standard flows for Product Listing, Product Detail, Cart and Checkout . Liquid Glass UI feel and animation Product Listing Page I’m flexible on the exact layout—grid, list or even masonry can work—so long as the final choice suits the overall concept and performs well on all bre...

    €79 Average bid
    €79 Média
    57 ofertas

    I want to give our fully-functioning Django ERP a polished, enterprise-ready look while leaving every line of backend logic exactly as it is. The job is 100 % about front-end presentation: starting from our current Bootstrap-based templates, rebuild the interface with Django templates powered by Tailwind CSS to achieve a clean, modern SaaS aesthetic. Scope • Redesign every page—dashboards, tables, forms, modal dialogs, wizards, settings screens—so the entire system shares one coherent design language. • Introduce a professional sidebar / top-bar layout, clear typography, balanced spacing, and intuitive iconography. • Enhance data tables with responsive behaviour, sticky headers, and subtle interaction states; restyle forms for better readability and valida...

    €69 Average bid
    €69 Média
    30 ofertas

    We have a website redesign to do, we want to give up Wordpress because we had problems with hacks, and migrate to a CodeIgniter 4 + AdminLTE architecture. The website is very simple and I don't think the whole project will take more than a few days.

    €727 Average bid
    €727 Média
    265 ofertas
    Fix Shopify PDP Apple Pay
    6 dias left
    Verificado

    I have Apple Pay enabled through Shopify Payments and the button shows up on every product page, but when a customer taps it the site jumps to the regular checkout instead of opening the Apple Pay sheet and completing the purchase in place. The payment never processes, and the same behaviour occurs on iPhone, iPad, Mac, Safari, and Chrome, so it isn’t a device-specific glitch. What I need is a clean repair or re-implementation of Apple Pay on the product detail page so the flow stays on the PDP, the Apple Pay modal opens, the charge is authorised, and the order is created in Shopify without any manual redirects. Please work directly in the theme (Liquid, JavaScript) or via Shopify’s Payments API—whatever is best practice—while keeping existing styling untouched. I...

    €29 Average bid
    €29 Média
    73 ofertas

    I need a bespoke WooCommerce payment gateway that lets shoppers pay with any standard credit or debit card and have the amount credited instantly to an on-site crypto wallet. Each customer will see a running balance and a full transaction history inside their account dashboard. Core build • Gateway visible at checkout, labelled clearly for card payments that top-up the wallet before completing the order. • Wallet type: crypto-based. You are free to recommend the best open-source or third-party API for key generation, secure storage, and blockchain interaction. • Features required inside the wallet: real-time balance tracking and searchable transaction history. • Admin settings to enable/disable the gateway, set minimum/maximum top-up amounts, and view aggregate...

    €14 - €116
    Secreto
    €14 - €116
    9 ofertas

    Ich benötige eine schlanke, aber erweiterbare Integration zwischen Shopify und Microsoft Dynamics 365 Business Central. Hauptaufgabe ist es, Produkt- und Bestelldaten in Echtzeit über die Business Central API auszutauschen, ohne zusätzliche Zwischenplattform. Kernanforderungen • Echtzeit-Synchronisation:  – Produkte (Artikelstammdaten, Preise, Bestände)  – Bestellungen inkl. Status-Updates • Technologie: Nutzung der Business Central REST-API als zentrales Gateway; auf Shopify-Seite gern native REST-Endpunkte oder GraphQL, solange die Lösung konsistent bleibt. • Modularer Aufbau, sodass künftige Erweiterungen (z. B. Kundendaten) mit minimalem Aufwand eingebunden werden können. • Sauberes Fehler-Handlin...

    €2133 Average bid
    €2133 Média
    54 ofertas
    Fix Website Video Autoplay WIX
    6 dias left
    Verificado

    I have an MP4 hero video sitting just below the header of my Wix site. It loads, loops, and controls work once someone clicks the play icon, but I cannot persuade it to start automatically. The problem shows up in every browser I’ve tested—Chrome, Firefox, and Safari—so it isn’t a single-browser quirk. What I need is a clean solution that makes the video autoplay (ideally muted at first load to satisfy modern browser rules), keeps the current loop behaviour, and does not break any existing layout or mobile responsiveness on Wix. If a small code snippet, attribute tweak, or Wix-specific setting is required, please implement it for me and let me know exactly what you changed so I can maintain it going forward. Deliverable • Updated embed or page section on Wi...

    €66 Average bid
    €66 Média
    145 ofertas

    I’m working with a sizable dataset that contains both numbers and text, and I need every record entered faithfully into a Google Sheet. Before anything goes in, each numerical field has to be checked against the specific upper- and lower-bound ranges I’ll provide; if a value falls outside that range, simply flag it in a separate “Issues” column instead of altering it. The flow is straightforward: validate, enter, double-check. You may rely on Google Sheets’ built-in data-validation rules, filters, or even quick formulas to speed up the range checks, but accuracy always overrides speed. Because the sheet mixes text columns and numeric columns, please beware of mis-aligned cells, accidental truncations, or copied formatting that could skew the data type. Del...

    €8 Average bid
    €8 Média
    35 ofertas

    Szukam doświadczonego developera, który stworzy dla mnie bota AI do ultrakrótkoterminowego handlu kryptowalutami. Bot ma uczyć się na danych historycznych oraz bieżącym price action i wolumenie, aby podejmować decyzje w czasie rzeczywistym – wszystko w oparciu o API Binance i napisane w Pythonie. Najważniejszy dla mnie jest rozbudowany moduł zarządzania ryzykiem: automatyczne SL/TP, dzienne limity strat, kontrola wielkości pozycji oraz maksymalne obsunięcie kapitału. Oczekuję pełnego logowania każdej operacji i przejrzystych raportów, dzięki którym łatwo przeanalizuję skuteczność strategii. Chcę, aby proces pracy wyglądał następująco: • Backtest na szerokim zakresie danych historycznych (Bitcoin, ewentualnie altcoiny). • Paper trading na konc...

    €869 Average bid
    €869 Média
    65 ofertas

    I do NOT have anything i need wordpress plugin.. I need to start today ANY HOW in this intresting project Mercedes Product Configurator Development No 3D models No assets I have name i will share No base code 3D Car Customization (Real 3D Model) This is a fully interactive 3D experience where users can rotate the car and customize parts in real time. Uses real 3D models and JavaScript () High-end, showroom-level experience Everything must be created and provided by the developer, including 3D assets. as per my video i need plugin that work on woocommerce products which i selct as a car configurator Core Requirements 1️⃣ WordPress Plugin (Mandatory) Must be a proper WordPress plugin Easy install via .zip Shortcode / block to use on product page Works with normal WordPress pages (Wo...

    €579 Average bid
    €579 Média
    34 ofertas

    We have 3 live Shopify websites that need to be replicated 1:1 (design and content). We no longer have backend access to these stores, but the websites are fully live and publicly accessible. Scope: - Copy design exactly as it appears on the live sites - Recreate structure, layout, sections, and styling - Copy all visible content (text, images, collections, products, pages) - Ensure responsive behavior matches the original Current Status: - The design is approximately 75% already implemented - Around 20% of the content has been migrated We need an experienced Shopify developer who can: - Precisely match design details (spacing, typography, layout behavior) - Work cleanly in Liquid, CSS, and JS - Complete the remaining 25% of design adjustments - Migrate and structure the remaining conte...

    €460 Average bid
    €460 Média
    208 ofertas

    I'm looking for an expert to create visualizations for user behavior data. The primary goal is to help us understand patterns and insights through data visualization. Key requirements: - Expertise in data visualization tools (e.g., Tableau, Power BI, D3.js). - Experience with user behavior data, particularly in website interactions, mobile app usage, or social media engagement. - Ability to transform complex data sets into clear, actionable visual insights. - Strong analytical skills to interpret data and provide meaningful recommendations. Ideal candidates would have a background in data science or analytics and a portfolio showcasing similar projects.

    €7 / hr Average bid
    €7 / hr Média
    20 ofertas

    I need a small, self-contained weather widget that anyone can open through a single URL. When the page loads it should immediately show the current conditions plus a multi-day forecast, all rendered graphically—icons, temperature charts, or any other visual approach that gives the information at a glance. The widget must let visitors change the location on the fly (city name, ZIP code, or GPS lookup). As soon as the user switches places, the visuals should refresh with the new data. I’m fine with any reliable public weather API such as OpenWeatherMap or WeatherAPI; feel free to recommend the one that best supports a clean, rate-limited solution. Responsiveness is important—phone, tablet, and desktop should look equally polished. I’d like modern, lightweight co...

    €170 Average bid
    €170 Média
    38 ofertas
    Polish React App Landing Page
    6 dias left
    Verificado

    I already have a working landing page for my app () built in React, but the visual layer needs a final polish. The underlying code and copy can stay as-is; what I need is a design-driven refresh of the layout, colour palette, and the images/icons that support the brand story. You will work directly in the existing React repository, streamlining the component structure only where it helps the new look. I’ll supply my current brand guidelines—logo files, primary/secondary HEX values, spacing rules, and a small icon collection—to anchor the redesign. Feel free to propose subtle variations as long as the core guidelines remain intact. Deliverables • Updated React components (JSX, CSS/Styled-Components) reflecting the revised colour scheme • Optimised and p...

    €469 Average bid
    €469 Média
    270 ofertas

    My live SaaS runs on React, is deployed to Vercel, and stores data in Supabase. Production users are already in the system, so every change has to be safe, targeted, and fast. We are providing booking system for photography studio Issue 1 – Mismatched price between generated receipt and system Issue 2 - Time locking issue on booking form page (Time slot should locked when user paid , but there is other time slot that locked by unknown reason) Issue 3 - Booking & payment issue via FPX. These bugs exist where payment is sucess but booking not made. Payment is fail but booking is made. Issue 4 - Other bugs that will be added later Deliverables • Pull request(s) for each of the fixes and refinements • Brief deployment notes so I can push straight to Vercel I...

    €125 Average bid
    €125 Média
    149 ofertas

    Subject: Shopify Specialist Needed: CRO, SEO, and Performance Marketing for Revenue Growth My Shopify store is running, yet sales are not where they should be. I’m looking for a specialist who can dive into the existing setup and turn its untapped potential into measurable revenue growth. The focus is squarely on boosting store sales by improving what is already there—theme configurations, app integrations, and the overall user journey—while also driving high-quality traffic. Here’s what I expect: 1. Store Optimization (CRO): A quick but thorough audit highlighting friction points that hurt conversion. Hands-on adjustments to theme settings, navigation, and on-page content for an effortless user journey. Refinement of product titles, descriptions, imagery, and...

    €99 Average bid
    €99 Média
    113 ofertas

    I need a clean, fast-loading static HTML site that presents my online Quran classes in both Indonesian and English. Please build everything without a CMS—just well-structured HTML5, lightweight CSS, and a touch of vanilla JavaScript if you feel it enhances usability. The design should follow modern best practices, be fully responsive, and display correctly on common mobile and desktop browsers. Because the audience is mainly in Indonesia, I’m hoping to work with a local Muslim designer who already appreciates the cultural context and can suggest appropriate colour palettes, typography, and subtle Islamic design elements without over-complicating the page. If this sounds like a project you can complete efficiently and with care, I look forward to seeing your approach and tim...

    €374 Average bid
    €374 Média
    246 ofertas

    I need my existing systems connected to the official WhatsApp Business API so customers receive fully automated messages at the right moments. The flow should cover three scenarios: a warm welcome when users first engage, a timely follow-up after specific actions, and occasional promotional broadcasts that respect WhatsApp’s policies. Message templates are not ready yet, so part of the job is to craft compliant, on-brand templates, submit them for Meta approval, and wire them into the automation logic. Deliverables • End-to-end WhatsApp Business API integration, including webhook configuration and testing • Three approved template sets: Welcome, Follow-up, Promotional • Clear documentation showing how to modify templates or add new triggers in the future ...

    €464 Average bid
    €464 Média
    62 ofertas

    I have every screen of the project laid out in Adobe XD—desktop, tablet and mobile artboards—so the visual direction is locked in. What I now need is the clean, production-ready code that turns those mocks into a responsive service-based website. Core features already defined in the wireframes: • Booking system tightly linked to Momence for payments and scheduling • Secure log-in / log-out functionality for returning clients • Public customer-review sections on relevant pages Account creation and confirmation, admin and future proofing, booking and purchase flow Please match the XD layouts pixel-for-pixel, make the site fluid across modern browsers, and be sure the mobile breakpoints feel just as polished as the desktop view. All interactive elements (butt...

    €2356 Average bid
    €2356 Média
    191 ofertas

    I’m working with a sizable dataset that contains both numbers and text, and I need every record entered faithfully into a Google Sheet. Before anything goes in, each numerical field has to be checked against the specific upper- and lower-bound ranges I’ll provide; if a value falls outside that range, simply flag it in a separate “Issues” column instead of altering it. The flow is straightforward: validate, enter, double-check. You may rely on Google Sheets’ built-in data-validation rules, filters, or even quick formulas to speed up the range checks, but accuracy always overrides speed. Because the sheet mixes text columns and numeric columns, please beware of mis-aligned cells, accidental truncations, or copied formatting that could skew the data type. Del...

    €10 / hr Average bid
    €10 / hr Média
    35 ofertas

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