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!

653,383 értékelés alapján az ügyfelek 4.9 / 5 csillagot adtak Javascript Developers szabadúszónknak.
Alkalmazza Javascript Developers szabadúszót

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!

653,383 értékelés alapján az ügyfelek 4.9 / 5 csillagot adtak Javascript Developers szabadúszónknak.
Alkalmazza Javascript Developers szabadúszót

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    Munka státusza
    543 munkát találtunk

    Quiero transformar mi portafolio personal en un sitio web totalmente responsive hecho solo con HTML, CSS y JavaScript, sin frameworks pesados. El objetivo es mostrar de forma clara y atractiva mis proyectos de desarrollo web; la sección “Proyectos” es indispensable, mientras que “Sobre mí” y “Contacto” pueden añadirse si ayudan a la navegación y la coherencia visual. Tengo este demo como referencia de estilo y estructura: Busco: • Diseño moderno con buenas prácticas (BEM, semántica HTML5, Flexbox/Grid, CSS variables). • Animaciones JavaScript ligeras para mejorar la experiencia de usuario (por ejemplo, menú móvil, efectos de scroll). • Código limpio, comentado y ...

    €107 Average bid
    €107 licitátlag
    24 árajánlat
    Comprehensive Website Revamp
    23 óra left
    Ellenőrzött

    I’m ready to refresh my site from top to bottom and would like a developer-designer who can handle design, content, and functional tweaks in one smooth sprint. Design updates come first: the overall layout needs a thoughtful redesign so pages feel cleaner and more intuitive, plus a new colour scheme that stays on-brand yet feels modern. I’ll share a current style guide and mood-board references once we start so you can translate the vision directly into fresh HTML/CSS (or equivalent in my CMS theme). Content is next. I have several new pages to add, existing copy that must be updated for accuracy, and a set of images and short videos ready to slot in. You’ll stage everything, optimise media for quick load times, and double-check formatting so it looks perfect on des...

    €487 Average bid
    Sürgős
    €487 licitátlag
    107 árajánlat

    I need a high-end automation tool for a scheduling portal. Requirements: ​Handle 50+ unique browser profiles. ​Integrated media stream handling for verification steps. ​Automation of form filling and fast navigation. ​Anti-detection measures to avoid bot blocks. Budget: $1,500. Milestone based only.

    €1040 Average bid
    €1040 licitátlag
    60 árajánlat

    I need help in my website Cloudflare sdk 1. Generate super admin, admin pages and dashboards 2, muti tenants customers dashboards 3, prepare moyasar payments gateway api ( i will enter the keys ) 4, fix the ai models so user can select one to use

    €119 Average bid
    €119 licitátlag
    89 árajánlat
    Courier Booking & Dispatch MVP App
    6 nap left
    Ellenőrzött

    Custom Courier Booking & Dispatch Web App (Maps + Dynamic Pricing) – MVP – Fast Delivery Required Project Description Hi, I’m building a custom courier/logistics booking platform for my UK transport company. This must be a fully custom web app (NOT WordPress plugins). Core features for MVP: Customer side – Postcode → postcode booking – HERE/Google Maps distance calculation – Dynamic pricing (minimum charge + per mile logic) – Vehicle selection – Instant quote – Booking form + save job Admin / Dispatcher – Dashboard – View bookings – Accept/Decline – Assign drivers – Status updates Driver – Mobile view – See assigned jobs – Update status APIs already available: – M...

    €1268 Average bid
    €1268 licitátlag
    232 árajánlat

    We need a React/Node.js expert to fix bugs in our API integration. The backend is built with Node.js (Express), and the frontend is React. Currently, the data isn’t being returned correctly from the API to the frontend, and there are a few other bugs that need resolving. It doesn't need server setup and It's only a few hours work.

    €107 Average bid
    €107 licitátlag
    168 árajánlat
    Moodle Migration and Theme Upgrade
    6 nap left
    Ellenőrzött

    Im looking for a moodle expert to assist with a migration and theme change. I have a instance of moodle 4.1.2 with two courses and using Edwiser RemUI theme on a tld and installed a new Moodle 5.1.1 on a different subdomain which will be future location. It is a clean install. Please study before bidding, I will not respond until next week. 1. Background & Context • Existing Moodle instance: ◦ Version: Moodle 4.1.2 ◦ Hosting: Separate domain (legacy) ◦ Theme: Edwiser RemUI ◦ Content: Limited use (2 courses) ◦ Media: Video-based courses, videos hosted externally (WordPress VideoPress / embeds) ◦ Activities: Includes H5P quizzes and interactions • New Moodle instance: ◦ Version: Moodle 5.1.1 ◦ Hosting: Ne...

    €114 Average bid
    €114 licitátlag
    120 árajánlat
    Flutter & Node Full-Stack Updates
    6 nap left
    Ellenőrzött

    I need a programmer who can work on both the front-end and back-end using Flutter & Node.js. Responsibilities include: adding images and videos to the server; adding a map with country and city selection; and adding a "success" screen.

    €28 Average bid
    €28 licitátlag
    45 árajánlat
    New Django Application Build
    6 nap left
    Ellenőrzött

    I’m starting fresh on a Django-based web application and need an experienced developer who can own the build from the ground up. The first release must include solid user authentication, a clean admin dashboard, and well-documented API integration. Alongside those, I also have an accounting component that needs to slot neatly into the overall architecture, so familiarity with ledger or billing modules in Django (e.g., Django-money, Stripe, or similar) will be helpful. The data model centres on user profiles and accounts, so I’ll look for sensible use of Django’s auth system, custom user models where necessary, and migrations that keep future changes painless. Clean, readable code, Git version control, and concise commit messages are non-negotiable. I’m happy with D...

    €4 / hr Average bid
    €4 / hr licitátlag
    15 árajánlat

    I need a fully coded, responsive online store for my attar and perfume line so customers can browse, select, and purchase our fragrances in just a few clicks. The site must feel luxurious yet simple, reflecting the mystique of traditional attars while making the checkout experience effortless. Key functions I cannot launch without include: • Secure payment gateway integration for credit/debit cards and local wallets • Built-in discount code engine so I can run seasonal offers and bundle promotions • A user review and rating section on every product page to build trust and social proof Beyond those essentials, I also want an intuitive admin panel where I can upload new scents, update stock, and track orders without touching code. Clean HTML, CSS, JavaScript and any m...

    €96 Average bid
    €96 licitátlag
    44 árajánlat

    We are looking for a skilled Full-Stack Developer to help diagnose and resolve bugs in a baby clothing designer app currently in closed testing, built with React and Node.js and wrapped using Capacitor for mobile deployment. The application is maintained in Replit. This is an existing app with a defined feature set. The focus of this role is on debugging front-end and back-end issues, improving performance and stability, resolving Capacitor-related issues including builds, plugins, and mobile behavior, and polishing the app in preparation for broader release. You will work directly with the product owner and be provided clear reproduction steps and priorities. Experience with React, Node.js, Capacitor, and comfort working in Replit is important.

    €13 / hr Average bid
    €13 / hr licitátlag
    162 árajánlat

    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...

    €480 Average bid
    €480 licitátlag
    156 árajánlat
    Flutter AR & Node Integration
    6 nap left
    Ellenőrzött

    I need a programmer for the Node.js backend and AR so that the image moves in front of the camera. We also need to upload the image to the server, create a map of its coordinates, track its current location, and monitor the number of viewers, among other things we will discuss. The application was built in Flutter, and the backend is in Node.js. The final price for this entire project is only $550.

    €399 Average bid
    €399 licitátlag
    145 árajánlat

    Project Overview I have an Android gaming application called TaskTrophy which is live on the Play Store. The app is a WebView-based application where the game logic (Ludo, Sudoku, Quizzes, etc.) is hosted on a remote server (Hostinger) using PHP and JavaScript. I have implemented AdMob Mediation with Meta Audience Network and Unity Ads, but I am facing critical issues: Low Fill Rate: Only 1 or 2 ads show out of 10 requests. Mediation Errors: AdMob Inspector shows "No secure signal found" for Meta and "Bidder returned client error" for Unity. Bridge Issue: I need a reliable way to trigger Reward Ads from my hosted JavaScript/PHP game logic when a user finishes a game trial. Technical Stack Backend: PHP (Hosted on Hostinger) Frontend: JavaScript / HTML5 Games Android: Nat...

    €196 Average bid
    €196 licitátlag
    18 árajánlat

    I’m building PulseTv, a live-streaming platform, and while I handle most of the core backend work, I need another set of hands to push the project over the finish line on both sides of the stack. Current stack & context • Database: MySQL • Realtime layer: native WebSocket connections for chat-bot hooks and audience messaging • Frontend preference: (React) • Streaming layer still pending: HLS and RTMP What I need from you 1. Frontend – Craft a responsive, clean UI in Next.js. – Set up solid state management (Redux, Zustand, or your preferred option) so chat, viewer counts, and live status stay perfectly in sync. – Wire everything to the existing REST and WebSocket endpoints. 2. Streaming features – Confi...

    €164 Average bid
    €164 licitátlag
    85 árajánlat

    HubSpot CMS Developer – Gated AI-Style Chat Interface (Gun Laws by State) Project Overview We are looking for an experienced HubSpot CMS developer to build a gated chat-style interface that allows users to query a structured database of U.S. gun laws by state. Access to the chat interface must be gated by email capture (HubSpot forms / CRM). This is a one-off project, not an ongoing retainer. The end result should feel like a simple, fast “chat bot” experience, but the responses should be pulled from pre-existing structured content, not generated AI. Core Requirements 1. Gated Access (Email Capture) User must enter an email address to access the chat interface Email capture should: Use HubSpot Forms Create or update a contact in HubSpot CRM Allow access immediately after ...

    €407 Average bid
    €407 licitátlag
    213 árajánlat

    Our production platform is already live on CodeIgniter (MVC) with a Bootstrap front end, Ajax-heavy JavaScript, a MySQL/SQL back immediate need is to improve code maintenance so the application can scale cleanly while we continue to ship new functionality. What needs to happen: • Track down and resolve outstanding bugs that affect both the customer dashboard and admin area. • Build out several new features now on the roadmap, using the current CodeIgniter architecture but written cleanly enough to migrate later to Laravel or a Node.js micro-service. • Refactor brittle controllers, models, and SQL queries for faster response times and lower complexity.

    €387 Average bid
    €387 licitátlag
    186 árajánlat

    I need a lean, front-end MVP built in React that lets patients do three things with ease: keep track of their own medical records, book appointments, and handle billing or invoicing. The goal is to demo these flows end-to-end so stakeholders can validate usability before we invest in a full-scale build. Core scope • Patient records: create, view, update, and delete basic demographics, visit summaries, and file attachments (use local or mocked API storage—no HIPAA data involved at this stage). • Appointment scheduling: calendar view with available slots, confirmation screen, and simple reschedule / cancel actions. • Billing & invoicing: list of outstanding invoices, card or PayPal mock checkout, and downloadable PDF receipt. Tech & workflow React (hook...

    €18 / hr Average bid
    €18 / hr licitátlag
    227 árajánlat

    I’m looking for a Playwright-based framework that automatically exercises our REST and GraphQL endpoints against the staging environment. The goal is a maintainable suite that can be triggered on every build and gives us fast feedback before we promote code to production. Here’s what I need: • Comprehensive Playwright test scripts that cover core flows such as login, key form submissions, and common data-validation scenarios (I’ll provide the exact endpoints and payloads once we start). • A clear way to parameterise base URLs so I can later point the same suite at local or production environments without code changes. • HTML/JSON reports generated after each run and stored in a folder I can archive in the CI pipeline. • Step-by-step documentati...

    €4 / hr Average bid
    €4 / hr licitátlag
    16 árajánlat

    I'm looking to develop a web application on the .NET platform. Ideal skills and experience: - Proficiency in .NET technologies. - Experience in web application development. - Strong understanding of database management. - Familiarity with front-end technologies (HTML, CSS, JavaScript). - Problem-solving skills and attention to detail. Please provide your portfolio and relevant work experience.

    €207 Average bid
    €207 licitátlag
    31 árajánlat

    I Need an Advanced Automation Developer – Redirect-Based Booking Bot (Goethe, Wicket Apache, COE Session Handling) For Goethe Booking like Chennai and Bangalore I am looking for a high-level automation/bot developer who has experience with: Wicket/Apache-based web applications Multi-step redirect chains COE session initialization & dynamic token handling ColdFusion (CFID/CFTOKEN) & JSESSIONID flows Cookie extraction & accurate replay of Set-Cookie across redirects Chrome CDP automation / Playwright / Puppeteer High-speed DOM watching (DOMWatcher / MutationObserver) Proxy rotation & session isolation --- Project Goal Build a bot that can open the “Select Modules / Book” page reliably during Goethe exam seat drops, even when: normal browser at...

    €191 Average bid
    €191 licitátlag
    18 árajánlat

    Project Overview I have an Android gaming application called TaskTrophy which is live on the Play Store. The app is a WebView-based application where the game logic (Ludo, Sudoku, Quizzes, etc.) is hosted on a remote server (Hostinger) using PHP and JavaScript. I have implemented AdMob Mediation with Meta Audience Network and Unity Ads, but I am facing critical issues: Low Fill Rate: Only 1 or 2 ads show out of 10 requests. Mediation Errors: AdMob Inspector shows "No secure signal found" for Meta and "Bidder returned client error" for Unity. Bridge Issue: I need a reliable way to trigger Reward Ads from my hosted JavaScript/PHP game logic when a user finishes a game trial. Technical Stack Backend: PHP (Hosted on Hostinger) Frontend: JavaScript / HTML5 Games Android: Nat...

    €723 Average bid
    €723 licitátlag
    8 árajánlat

    I build my website using woocommerce plugin. I am using german market plugin for invoice generation and EU ID checker for exempt tax if user entered EU ID field. I want to disable this EU ID checker field for digistore payment method, even user entered the field in the backend it should not work with digistore payment. Also this EU field is not working in the backend when admin creates an order manually. I have more work after this task so I am looking for someone who is reliable and interested to work with me. budget for this task $20 Start your proposal with "I can FIX it" so i know you read my description. Looking forward

    €18 Average bid
    €18 licitátlag
    37 árajánlat
    Refine Mobile App Menu Design
    18 óra left
    Ellenőrzött

    I already have a working mobile-app menu, but the layout feels untidy and several labels contain spelling errors. I need someone to polish the visual hierarchy—spacing, alignment, font sizing, icon balance—and proof every word so the text reads perfectly. You’ll start from my current design file (I can send it in Figma, Sketch, or XD) and keep the overall style, colours and icons intact; the task is purely cleanup and clarity, not a full redesign. Once finished, hand back: • The updated, editable source file in the same tool I provide • A set of export-ready PNG/SVG assets for quick implementation If you’re comfortable tightening UI layouts and have an eye for grammar and spelling, this should be a straightforward assignment.

    €29 Average bid
    Sürgős
    €29 licitátlag
    52 árajánlat
    Cross-Platform Object Detection AI
    6 nap left
    Ellenőrzött

    I need a production-ready object detection model built, trained, and packaged so it runs smoothly on iOS and Android devices, in a modern web browser, and as a lightweight desktop application. The same model should power every platform to keep accuracy and behaviour consistent. You are free to choose the framework you are most comfortable with—TensorFlow, PyTorch, YOLOv8, Detectron2, or another proven library—as long as the final artefacts meet these requirements: • Mobile: optimised builds (e.g. TensorFlow Lite, Core ML, or ONNX) that hit realtime speeds on mid-range phones. • Web: WebAssembly/WebGL or implementation that loads in under three seconds on a standard connection. • Desktop: a small executable or Python app with GPU support when available and ...

    €122 Average bid
    €122 licitátlag
    39 árajánlat

    My Google Form (Customer Order Form) is currently not submitting, and I need help fixing it. Additionally, I need the form to automatically calculate and display money totals for customers. Requirements: - Fix form submission issue - Add functionality to automatically calculate and display money totals Ideal Skills: - Experience with Google Forms - Problem-solving skills - Familiarity with form calculations

    €69 Average bid
    €69 licitátlag
    95 árajánlat
    Automated email trigger
    6 nap left
    Ellenőrzött

    Project summary: Automated We are looking for a freelancer to set up an automation using our account and CRM boards. The goal is to automatically send a Trustpilot invitation email when a specific status change occurs in Monday.com. The automation should pull relevant customer data from and insert it into a predefined email script, then send it to Trustpilot. The same setup should be applied consistently across two of our boards. We are looking for a clean, reliable solution that runs automatically with minimal manual input once configured.

    €21 Average bid
    €21 licitátlag
    53 árajánlat

    Necesito un OS para decos, puede ser basado en linux y que tenga un menú para colocar IP, Puerto, Usuario y Clave para el login en el servidor IPTV, sin muchas graficas, solo el login, que al autenticarse se agregue a la playlist y reproduzca los canales automáticamente.

    €341 Average bid
    €341 licitátlag
    33 árajánlat

    I’m building a full-featured game recharge portal that lets players top-up their accounts for mobile, PC, and console titles from a single, responsive site. I already have the product scope and need a developer who can take it from concept to launch, focusing on seamless UX, airtight security, and easy scalability. Core requirements • Supported platforms: Mobile, PC, Console • User authentication: Email & password, social media login, and an extra layer of two-factor authentication • Payment options: Credit/Debit card, PayPal, and Cryptocurrency (major coins) What I expect • A clean front-end with intuitive purchase flow and wallet balance display • Robust back-end that handles order creation, payment confirmation, and automatic delivery of in...

    €175 Average bid
    €175 licitátlag
    94 árajánlat

    I’m building a live remote-monitoring dashboard that ingests MQTT messages from a teltonikak rtu 901 gateway along with temperature, pressure, and oxygen sensors and many other parameters from a controller. The stack I have in mind runs on DigitalOcean or AWS and is driven by Python on the back-end and JavaScript on the front-end, but I’m happy to discuss refinements if you can justify them. Current status • Devices is yet to publish raw readings over MQTT. • No cloud pipeline, storage layer, or UI exists yet. What I need next • A lightweight yet secure ingestion service (Python is preferred) that subscribes to the topics, validates payloads, and writes them to a scalable store on DigitalOcean. • A real-time dashboard in JavaScript that shows live ...

    €6 / hr Average bid
    €6 / hr licitátlag
    19 árajánlat

    I need a clean, single-page site that introduces my services and products through simple, visually appealing cards. Each card must include a “Contact on WhatsApp” button that opens a chat with my number, so visitors can message me instantly without filling out any forms. The page should be built strictly with vanilla HTML, CSS, and a light touch of JavaScript—no frameworks, payment gateway, or admin panel. It has to load quickly and look great on both mobile and desktop screens; tablet support is welcome but not essential. Here is what I expect to receive: • One responsive HTML file linked to its CSS and JS • Well-structured, commented code so I can make future edits easily • Clear setup instructions (if any) and the final files delivered in a zip ...

    €182 Average bid
    €182 licitátlag
    82 árajánlat

    Shopify Custom Payment Gateway Integration – Serdipay I am looking for a Shopify developer to integrate the Serdipay payment gateway into my Shopify store using a custom API integration, since there is no official Shopify app available. Payment Flow Required • Customer completes checkout in Shopify • Customer is securely redirected to Serdipay hosted payment page • After payment, Serdipay sends a webhook/callback • The webhook verifies payment authenticity and confirms the transaction through Serdipay API • The corresponding Shopify order is automatically updated to Paid, Failed, or Cancelled (no manual work) Technical Requirements • Hosted payment page with redirect • Secure webhook endpoint with signature verification • HTTPS communicati...

    €883 Average bid
    €883 licitátlag
    187 árajánlat

    I’m planning an interactive, data-structures-and-algorithms-focused coding duel platform and I need a crystal-clear design and architecture proposal before any code is written. The end product must feel like a learning arena first and a competition second, so every technical choice has to support quick feedback, fairness and easy-to-follow analytics for students. Core experience to address The platform will present the same DSA question to two users simultaneously, lock them into a fixed countdown and stream their code through a real-time execution engine so they can see results (compile errors, test-case pass/fail, runtime, memory) without refreshing. While live chat or leaderboards may appear later, this first proposal must concentrate on that real-time duel loop and the backend...

    €1276 Average bid
    €1276 licitátlag
    21 árajánlat

    Project Requirement – Custom Car Parts Customizer Mercedes Product Configurator Development -( I need custom plugin) 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 3D Car Customization (Real 3D Model) I ONLY NEED TEAM WHO CAN HANDLE ALL. I DO NOT HAV ANY 3D ASSETS YOU CAN TAKE FROM GOOGLE OR FROM YOUR 3D DEV I HAVE GIVEN NAME IN DOC 3D assets will be rendered using optimized GLTF models in , with client-side WebGL rendering, real-time customization, and performance-focused loading for a smooth showroom-level experience. 3D Designer + Wodpress expert This is a fully interactive 3D experience where users can r...

    €927 Average bid
    €927 licitátlag
    59 árajánlat

    I need my current website torn down and rebuilt on WordPress from the ground up—21 pages in total—and I have only one week to launch. All content already exists; what’s missing is a clean, fully responsive structure, fresh theme setup, plugin configuration, and a final migration to the live server without downtime. You’ll take complete ownership of the process: clone the site to a staging environment, re-create every page, preserve SEO-critical elements (URLs, meta data, alt tags), run cross-browser tests, and push the finished build live. I won’t be micromanaging, so proven WordPress expertise is a must. To move quickly, please send: • A brief summary of your WordPress background • Links to comparable full-site rebuilds you’ve handled &b...

    €107 Average bid
    €107 licitátlag
    89 árajánlat
    Website Menu & Date Edits
    6 nap left
    Ellenőrzött

    I need a developer who can jump in and make two very small but visible tweaks on my site right away. First, the drinks section of the online menu needs its existing items updated—no new additions or removals, just revised names, prices, or descriptions where I supply them. Second, the site still shows last season’s opening date; swap it out for the new date I will provide. The site is already live and stable, so I just want a clean edit in the CMS (or directly in the code if that’s faster) with zero impact on layout or performance. Please make the changes, push them to production, and give me a quick confirmation once everything is live so I can verify.

    €22 Average bid
    €22 licitátlag
    139 árajánlat

    I already run a fully-functional courier management system built in PHP (CodeIgniter). One of my shippers sells through Shopify and wants to replace Shiprocket with our own service, so I need the Shopify side put in place. The job centres on creating and configuring the app in the Shopify Partner Dashboard, securing the required API keys, and wiring selected features to my existing endpoints. Those endpoints—rate calculation, real-time order tracking and automated label printing—are live and documented; you will only be integrating these three, not the entire API suite. What I expect from you • Register the app (public or custom, whichever best suits a single-store use). • Set up redirect URLs, scopes, embedded SDK and mandatory webhooks so it passes Shopify&rsq...

    €72 Average bid
    €72 licitátlag
    36 árajánlat

    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...

    €8 / hr Average bid
    €8 / hr licitátlag
    43 árajánlat

    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...

    €9 / hr Average bid
    €9 / hr licitátlag
    26 árajánlat

    I need an experienced engineer to analyze and improve a high-demand online booking workflow so bookings can succeed reliably even under extreme traffic. I already have a working Playwright-based browser automation, but during peak demand all sessions currently land on a “high demand / unavailable” state. The goal is to improve success rate through deeper system understanding, better timing, and smarter flow control . The work involves analyzing booking flow and state transitions, understanding how availability actually appears during high demand (including delayed or staggered releases), improving timing, retries, waiting strategy, and navigation logic, eliminating race conditions and aborted navigations, and designing the automation to be long-running, reactive, and resilient ...

    €2511 Average bid
    €2511 licitátlag
    47 árajánlat

    I need a lightweight, browser-based application that lets customers quickly find and book trusted home-service pros—starting with cleaners—through a clean, Uber-style interface. The whole experience must feel effortless for users who may not be tech-savvy, so every screen has to be uncluttered, with large touch targets, clear typography and a gentle colour palette. Core workflow • A new customer lands on the site, registers with a phone number and receives an SMS code to verify the account. • They browse service-provider cards that show a photo, short bio, skill tags and an aggregate star rating pulled from past jobs. • From the same view they tap a date/time slot, confirm the booking and immediately see it in their personal schedule. • A lightweigh...

    €240 Average bid
    €240 licitátlag
    158 árajánlat

    I want a sleek, web-based text chat application built with React on the front end, Node.js on the back end, and Firebase handling real-time messaging as well as user authentication. The interface must load quickly and feel at home both on desktop browsers and on mobile screens, so responsive layout and touch-friendly controls are essential. Core experience • Real-time text conversations that update instantly, complete with emoji and sticker support. • Group rooms for up to 20 participants, each showing typing status and read receipts. • Simple email-and-password sign-up, profile page, and photo upload. • One-to-one and group image sharing (no videos or docs for now). Look & feel Think Telegram or Signal stripped to the essentials: soft neutral backgrou...

    €451 Average bid
    €451 licitátlag
    137 árajánlat

    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...

    €532 Average bid
    €532 licitátlag
    58 árajánlat

    I need a clean, responsive static HTML site that presents my business clearly and professionally. The main objective is to showcase our company history in a compelling way, so the layout should draw visitors straight to that narrative while still leaving room for future sections such as services or contact details. Here’s what I expect: • Fully-hand-coded HTML5, CSS3 and minimal vanilla JavaScript—no CMS or frameworks required. • One landing page plus a dedicated “Our Story” page that highlights the business background. • Mobile-first styling and cross-browser compatibility. • Optimised images, semantic markup and tidy file structure so content can be expanded later. • Delivery as a zipped folder containing all source files ready to...

    €107 Average bid
    €107 licitátlag
    104 árajánlat

    I need a complete, student-facing web application that lets users prove the authenticity of their academic certificates through blockchain hashing. The flow is straightforward: a student signs up, uploads a certificate, and immediately receives an on-chain validation record that anyone can later cross-check online. I have half work done and pages are created Core functionality • Secure user registration and login with email or social auth • Certificate upload, automatic hashing, and immutably storing the hash on a blockchain network (Ethereum or any suitable L2 you recommend) • Instant on-screen validation result plus a shareable verification link • Admin dashboard where I can review submissions, view analytics, and revoke or re-issue hashes when needed Tech...

    €1203 Average bid
    €1203 licitátlag
    22 árajánlat

    I am a Life & Relationship Coach and I am looking for an experienced website developer to work on two related tasks: JOB 1: Create a High-Converting Paid Session Landing Page JOB 2: Optimize My Existing Website for Better Paid Conversions This project is conversion-focused, not just design-focused. ABOUT MY BUSINESS Website: I offer paid Life Coaching, Relationship Coaching & Marriage Counseling sessions. Currently, my website focuses more on discovery calls. Now I want to directly convert visitors into paid session bookings using a dedicated landing page and smart website changes. JOB 1: LANDING PAGE DEVELOPMENT (MAIN TASK) You will create one high-converting landing page based strictly on the content provided by me. IMPORTANT I have uploaded: A detailed MS Word file c...

    €137 Average bid
    €137 licitátlag
    47 árajánlat

    I need a lightweight, real-time chat application that runs in the browser. The focus is purely text messaging, but users must be able to insert and render emojis naturally inside each message. The core flow I’m picturing is simple: a visitor lands on the page, chooses a display name, and immediately joins a public chat room where messages appear instantly without refreshing the page. WebSocket (or a similar push technology) will be necessary to keep the conversation live. Clean, responsive UI built with vanilla JS, React, Vue, or another modern front-end framework is fine as long as it loads fast and looks good on both desktop and mobile browsers. Key points I will review during hand-off: • Messages and emojis show up in real time for every connected user. • Frien...

    €44 / hr Average bid
    €44 / hr licitátlag
    54 árajánlat

    I need a lightweight, real-time chat application that runs in the browser. The focus is purely text messaging, but users must be able to insert and render emojis naturally inside each message. The core flow I’m picturing is simple: a visitor lands on the page, chooses a display name, and immediately joins a public chat room where messages appear instantly without refreshing the page. WebSocket (or a similar push technology) will be necessary to keep the conversation live. Clean, responsive UI built with vanilla JS, React, Vue, or another modern front-end framework is fine as long as it loads fast and looks good on both desktop and mobile browsers. Key points I will review during hand-off: • Messages and emojis show up in real time for every connected user. • Frien...

    €19 / hr Average bid
    €19 / hr licitátlag
    72 árajánlat

    I would someone to create 4 screens for me using React / with other required tools. There are 3 Primary task in this project. 1. Create 4 UI screens as per Mockup given as attachment. 2. Populate the screen with hard coded data provided by me. 3. Once screen is submitted, Exposed API's should be called. There are 3 API's exposed. One to submit screen details. second one for get status and thrird to stop monitoring. Requirement Document PostTrade Software Application 1. Overview Product Name: PostTrade (aka Monitor My Trade) Objective: Build a mobile-friendly application that allows users to start, monitor, and stop an options trade (initial focus: Short Iron Condor) using a clean 3‑screen flow, based on the provided mockups. The system focuses on post‑trade monitoring...

    €613 Average bid
    €613 licitátlag
    38 árajánlat

    I’m assembling a freelance roster of seasoned Solana engineers to push a new decentralised application from idea to mainnet. The role centres on end-to-end DApp development: writing and auditing on-chain Rust programs, wiring them to a TypeScript/React front-end through Anchor or @solana/, and handling deployment, testing and optimisation so the final product is fast and fee-efficient. If you have shipped production Solana work before, please include links or GitHub repos that clearly show what you built and the parts you owned. I’ll review those examples first to decide who moves forward. We will work milestone-by-milestone; as soon as the initial scope is delivered (fully functional features, commented code, concise hand-off docs), I have follow-up tasks ready. Comfortable ...

    €958 Average bid
    €958 licitátlag
    42 árajánlat

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