Web Application is the process of building, testing, and hosting a service, program or software on the web. This example of technology falls under the umbrella of application development, though a Web App Developer is an IT specialist dedicated to specifically working on web based platforms. Web Application development offers plenty of advantages, as a well-executed online platform can increase accessibility, improve workflow, and offer premium user experience. Furthermore, web applications can be designed to function on mobile devices, giving developers and their clients the potential for massive reach.

A Web App Developer is an experienced professional that designs and builds applications for users to gain access to. The components of this application process include developing front end designs and coding pages with coding languages such as JavaScript, HTML/CSS and Python. They also have expertise in setting up server system architecture and interfaces with databases. The services that these developers offer include app design/development, UX/UI development/design, cloud computing integration (such as Amazon Web Services and Microsoft Azure) security testing/validation and quality assurance testing.

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

  • Creating mobile-friendly browser based applications
  • Implementing cloud computing technologies
  • Developing automated systems that integrate machine learning
  • Employing Saas models through efficient management tools
  • Building automated bots utilizing Ocaml
  • Running compatibility tests across a variety of platforms
  • Designing Zoho Creator expert applications
  • Deploying PHP web apps with video tutorials
  • Constructing photo upload/browsing platforms with Flutter

The utility of Web App Developers is proven in the creative works that have been achieved utilizing their skillsets. Professionals in this field work together with clients to create streamlined programs that are tailored to their preferences. By combining their knowledge with client inspiration, these developers have created technology solutions that cover practically every system aspect desired. Putting it simply: when you need an app built quickly with precision, you need a Web App Developer from Freelancer.com. Post your own project today and hire one of Freelancer's knowledgeable specialists to develop your ideas into reality!

จาก 115,467 รีวิว ลูกค้าให้คะแนน Web App Developers 4.9 จาก 5 ดาว
จ้าง Web App Developers

Web Application is the process of building, testing, and hosting a service, program or software on the web. This example of technology falls under the umbrella of application development, though a Web App Developer is an IT specialist dedicated to specifically working on web based platforms. Web Application development offers plenty of advantages, as a well-executed online platform can increase accessibility, improve workflow, and offer premium user experience. Furthermore, web applications can be designed to function on mobile devices, giving developers and their clients the potential for massive reach.

A Web App Developer is an experienced professional that designs and builds applications for users to gain access to. The components of this application process include developing front end designs and coding pages with coding languages such as JavaScript, HTML/CSS and Python. They also have expertise in setting up server system architecture and interfaces with databases. The services that these developers offer include app design/development, UX/UI development/design, cloud computing integration (such as Amazon Web Services and Microsoft Azure) security testing/validation and quality assurance testing.

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

  • Creating mobile-friendly browser based applications
  • Implementing cloud computing technologies
  • Developing automated systems that integrate machine learning
  • Employing Saas models through efficient management tools
  • Building automated bots utilizing Ocaml
  • Running compatibility tests across a variety of platforms
  • Designing Zoho Creator expert applications
  • Deploying PHP web apps with video tutorials
  • Constructing photo upload/browsing platforms with Flutter

The utility of Web App Developers is proven in the creative works that have been achieved utilizing their skillsets. Professionals in this field work together with clients to create streamlined programs that are tailored to their preferences. By combining their knowledge with client inspiration, these developers have created technology solutions that cover practically every system aspect desired. Putting it simply: when you need an app built quickly with precision, you need a Web App Developer from Freelancer.com. Post your own project today and hire one of Freelancer's knowledgeable specialists to develop your ideas into reality!

จาก 115,467 รีวิว ลูกค้าให้คะแนน Web App Developers 4.9 จาก 5 ดาว
จ้าง Web App Developers

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    สถานะงาน
    23 งานที่พบ

    I need a complete offline copy of a website that sits behind a login. I will supply working credentials; you just have to capture everything my account can see—HTML pages, images, style sheets, JavaScript, audio-video files, the lot—so I can browse it locally without an internet connection. The goal is straightforward backup, not a migration. I do not need server-side databases or code, only the front-end assets that render in the browser. The folder hierarchy must mirror the live site so that all internal links, images, and media load correctly once it’s on my hard drive. You are free to use tools such as HTTrack, wget, SiteSucker, or your own scripted solution; stability and completeness matter more than the method. Please respect the site’s session handling so ...

    $126 Average bid
    $126 การประมูลเฉลี่ย
    154 คำเสนอราคา
    Quality Node/React/Postgres Web App Code Review
    6 วัน left
    ยืนยันแล้ว

    Project title: Independent human code review of a Node/React/Postgres web app (auth, permissions, API, data layer) Skills: Node.js, Express, PostgreSQL, React, Security Review, Code Review Description I’m looking for an experienced software engineer to do an independent review of a web application before it goes live with its first real users. This is a quality review of the critical paths. It is not a security pen test or a certification. AI reviews are already done. I need a human. The codebase has already been through a series of AI-assisted, read-only reviews covering structure, security, maintainability, database, performance, and UI. Those findings are being worked through. What I need now is an experienced human engineer’s judgment: confirm what matters, catch what auto...

    $416 Average bid
    NDA
    $416 การประมูลเฉลี่ย
    107 คำเสนอราคา

    I need someone experienced with the GlossGenius platform to take my brand-new account from blank slate to live, client-ready booking site. The core task is straightforward: configure the site, populate an intuitive service menu, and make sure every visible section looks polished and on-brand. I have all copy, prices, and imagery ready; what I lack is the time (and, frankly, the patience) to navigate the back-end settings and design options GlossGenius offers. Once you’ve arranged the services into clear categories, I want the overall layout harmonised with my colours and logo so the experience feels seamless from Instagram link-in-bio to final confirmation page. Deliverable: a fully functional GlossGenius booking site with my service menu live, tested, and ready for clients to ...

    $135 Average bid
    $135 การประมูลเฉลี่ย
    139 คำเสนอราคา

    Quiero ofrecer a mis futuros clientes una tienda en línea que puedan adoptar casi “plug-and-play”. El objetivo es contar con un paquete base estable y fácilmente clonable, y esta primera versión debe incluir lo siguiente: • Catálogo de productos con navegación sencilla. • Sistema de reseñas básicas: estrellas y comentarios visibles en la ficha de cada artículo. • Panel administrativo claro para aprobar, editar o eliminar reseñas. La plataforma puede ser WordPress + WooCommerce, Shopify o una alternativa equivalente; lo importante es que el flujo de instalación y personalización sea rápido, ya que pensaré en desplegarlo varias veces. Diseño responsivo, buenas pr...

    $395 Average bid
    $395 การประมูลเฉลี่ย
    151 คำเสนอราคา

    I run an oxygen-cylinder supply business and need a web application that lets me follow every cylinder as it moves through filling, dispatch, customer delivery, return and maintenance, while also showing how long each location has been holding it day by day. Core workflow • Every cylinder will have a unique ID that can be searched or scanned to pull up its full movement history. • When a cylinder changes hands—warehouse to driver, driver to customer, customer back to plant, etc.—the responsible user logs that transaction and the system automatically timestamps it and starts or stops the holding-day counter for that party. • A dashboard should summarise total cylinders in circulation, ones overdue for return, and current holdings by customer or depot. ...

    $264 Average bid
    $264 การประมูลเฉลี่ย
    66 คำเสนอราคา
    $11 การประมูลเฉลี่ย
    27 คำเสนอราคา

    I’m building a compact registration system and need a skilled backend developer to complete the core infrastructure. The application must store registration data in a MySQL database, generate admit cards and registration slips in PDF format, and allow administrators to create manual entries that are saved just like online submissions. Key elements I want you to handle: • Database layer – design the schema and write the queries/ORM code to capture every registration field, plus logs for audit and troubleshooting. • Payment flow – integrate Razorpay so the user can pay, receive an on-screen confirmation, and trigger creation of the PDF registration slip only after a successful callback. • Admit card generation – automatically compile the stored...

    $33 Average bid
    $33 การประมูลเฉลี่ย
    48 คำเสนอราคา
    Cloudflare, R2, Mail Server Migration
    5 วัน left
    ยืนยันแล้ว

    I have two web applications that must follow the same Cloudflare + R2 pattern already running on a third project, so you can reference an existing working setup rather than starting from scratch. For Cloudflare, clone the configuration, update the DNS records, enforce Full (strict) SSL/TLS, and replicate the essential firewall rules we use to keep the apps locked down. Both sites need to be fully functional behind Cloudflare once you are done. Each application also requires its own R2 bucket. One will store user-uploaded content; the other will host a set of static HTML files. Please create the buckets, set the correct CORS and access policies, and update the applications so they read and write to R2 seamlessly. Finally, I need to move off Resend. Spin up a new mail server, migrate th...

    $279 Average bid
    $279 การประมูลเฉลี่ย
    186 คำเสนอราคา
    AWS Banking POC Build
    4 วัน left
    ยืนยันแล้ว

    I need an AWS specialist to spin up a small but realistic proof-of-concept for a banking-style web application. The goal is to show that the core of an online-banking platform can be deployed quickly and cleanly on AWS infrastructure. Scope • Primary focus: application deployment for a Banking POC. • Must include interactive elements that feel native in the browser. • The front-end should talk to back-end APIs exposed through API Gateway and backed by AWS Lambda functions. Deliverables 1. Source code for the UI and Lambdas in a Git repository. 2. Infrastructure-as-code (CloudFormation or Terraform) that builds the full stack in my account. 3. README with step-by-step deployment and test instructions. 4. A short walkthrough video or screenshare session confirm...

    $27 Average bid
    $27 การประมูลเฉลี่ย
    53 คำเสนอราคา

    I'm looking for a skilled web developer to create a functional website for my food truck business. The site needs to facilitate online ordering and allow me to manage and update catering specials, and schedule events. Key functionalities should include: - Online Ordering System: - Choose pickup time and location - Customizable menu options - Order tracking - Event Management: - Private catering events - Public food truck locations - Community events or partnerships Ideal skills and experience: - Strong experience in developing e-commerce websites, especially for food services. - Familiarity with POS integration. - Excellent UI/UX design skills to ensure a user-friendly experience. - Ability to create customizable menu options and robust order tracking features. Please ...

    $415 Average bid
    $415 การประมูลเฉลี่ย
    435 คำเสนอราคา

    I'm looking for an experienced backend developer to build a robust backend for my website. The primary function of the website is yet to be determined, but it will require integration with database systems. Key Requirements: - Set up and manage database systems - Ensure high performance and reliability - Collaborate on defining the website's primary function Ideal Skills and Experience: - Expertise in SQL and/or NoSQL databases - Strong background in backend development - Experience with database integration and management - Familiarity with performance optimization techniques - need a application developer Please provide examples of similar work done and your approach to handling such projects.

    $1883 Average bid
    $1883 การประมูลเฉลี่ย
    153 คำเสนอราคา
    SaaS Product Development for Hospitality Industry
    3 วัน left
    ยืนยันแล้ว

    Hi, I'm Filip. I spent 5 years as a General Manager at a resort, then worked as a Product & Marketing Manager for several software companies. Now I'm building a series of SaaS products for the hospitality industry, and I'm looking for a reliable developer or small team to build and validate them with me over the long term. The first MVP A simple web app for independent hotels to collect in-stay guest feedback via QR codes in rooms, so problems can be fixed before checkout. It includes an invite-only hotel dashboard, a public mobile-friendly guest form, QR generation with printable cards, and email notifications. The scope is intentionally small, and a detailed PRD is ready to share with shortlisted candidates. What I'm looking for Strong experience building web ...

    $1040 Average bid
    $1040 การประมูลเฉลี่ย
    518 คำเสนอราคา
    JS Expert Needed for Chrome Extension
    2 วัน left
    ยืนยันแล้ว

    I’m looking for an experienced JavaScript developer who can create a script to detect which Chrome extensions are installed/enabled in a browser. The main task is to research and implement a reliable method for identifying installed Chrome extensions using JavaScript/browser-side techniques. Requirements: Strong JavaScript knowledge Good understanding of Chrome/browser security and APIs Experience with browser detection techniques Ability to research what is technically possible and find a reliable approach Please share any relevant experience or similar work you have done, along with your estimated cost and timeline.

    $400 Average bid
    $400 การประมูลเฉลี่ย
    194 คำเสนอราคา

    I’m gearing up to build a brand-new product in the finance space and need a skilled partner to guide it from concept to launch. My core objective is to translate an initial idea into something that delivers real value to end users—whether that means a web app, mobile solution, or another format we identify together. Here’s what I expect along the way: • Discovery & Requirements – clarify target users, must-have features, compliance considerations, and any API or data-feed needs. • Technical & UX Blueprint – outline architecture, data flows, wireframes, and an intuitive interface suited for financial activities. • Prototype/MVP Build – develop a functional first release that we can demo, test, and iterate on quickly. • I...

    $20 / hr Average bid
    $20 / hr การประมูลเฉลี่ย
    128 คำเสนอราคา

    Subject: Proposal & Requirement Specification for E-Commerce / Gaming App - "LUCK DHAN" ​Hi, ​I am looking for an experienced developer/agency to build a complete Web Application, Android App, and Super Admin Panel for my project "LUCK DHAN". ​Please review the complete project scope, features, budget, and timeline below. ​ PROJECT OVERVIEW ​App Name: LUCK DHAN ​Platforms Required: Web App + Android App (.apk) + Super Admin Panel + Google Play Store Publishing ​Budget Range: ₹50,000 – ₹60,000 INR (Fixed & All-Inclusive) ​Timeline: 20 to 30 Days Maximum ​Language Note for Communication: I speak Hindi. If you wish to call or discuss the project details over a phone call, please communicate in Hindi. ​COMPLETE SCOPE OF WORK (13 CORE FEATURES) ​User Login &...

    $551 Average bid
    $551 การประมูลเฉลี่ย
    91 คำเสนอราคา

    Saya sedang berupaya memperkuat kemampuan pengembangan web dan memilih untuk fokus di front-end menggunakan Angular. Saya memerlukan seorang mentor berpengalaman yang dapat: • Menjelaskan konsep dasar hingga lanjutan Angular—component, module, routing, service, dan state management. • Membimbing saya melalui latihan praktik: mulai dari setup proyek, pembuatan SPA sederhana, hingga integrasi API. • Memberikan umpan balik kode secara rutin melalui sesi screen-sharing atau pull-request review. • Merekomendasikan sumber belajar efektif dan best practice testing, performance, serta struktur folder. Sesi pembelajaran fleksibel; saya siap menyesuaikan jadwal mingguan. Target akhir saya adalah mampu membangun dan men-deploy aplikasi front-end mandiri dengan stan...

    $6 / hr Average bid
    $6 / hr การประมูลเฉลี่ย
    33 คำเสนอราคา
    Profesyonel Ürün Katalogları için Web Sitesi
    1 วัน left
    ยืนยันแล้ว

    **Ürün Katalog ve Sipariş Odaklı Profesyonel Web Sitesi Yaptırmak İstiyorum** Mobilya, CNC ve benzeri ürünlerimi sergileyebileceğim, modern ve profesyonel görünümlü bir web sitesi yaptırmak istiyorum. Web sitesinde temel olarak şu özelliklerin bulunmasını istiyorum: * Ürünlerimi **kategori ve alt kategoriler** halinde düzenleyebilmek * Yaklaşık **50–100 adet ürünün** web sitesine eklenmesi * Her ürün için **ürün fotoğrafları, açıklama, özellikler ve gerekli bilgilerin** girilmesi * Google'da daha üst sıralarda yer alabilmek için **SEO altyapısının düzgün şekilde hazırlanması** * Kategori ve ürün sayfalarının SEO açısından opt...

    $409 Average bid
    $409 การประมูลเฉลี่ย
    216 คำเสนอราคา

    I have a PHP-based web application that I want to put into production with complete peace of mind. Before I do, I need an experienced full-stack developer to comb through the entire codebase, spin the project up on a clean server, and confirm that nothing malicious or inefficient is hiding inside. Here is what I expect: • A deep dive into every PHP file and any supporting assets to judge overall code quality, maintainability, and adherence to best practices. • A focused security assessment that looks for backdoors, exposed credentials, outdated libraries, common exploits (SQL injection, XSS, CSRF), and any unsafe configuration in the web server or framework. • A performance review that pinpoints bottlenecks in database queries, memory usage, or slow endpoints and sugg...

    $145 Average bid
    $145 การประมูลเฉลี่ย
    215 คำเสนอราคา

    I have an existing, fully developed web application built with Laravel 9, Vue 3, MySQL 8 and PHP 8.1. A substantial cumulative update package with code changes, database migrations and deployment notes will be supplied. >>> This job is deployment, configuration and testing — NOT a rebuild, redesign or refactoring project. You will: 1. Create an isolated staging installation with its own copy of the database. The existing website and all other projects must not be touched. 2. Deploy the supplied package according to its deployment instructions and configure the server, SSL, environment, permissions, queues and scheduler/cron as required. 3. Configure Stripe Test Mode and PayPal Sandbox. No real payments or live credentials will be used. 4. Thoroughly test the website in a r...

    $104 Average bid
    $104 การประมูลเฉลี่ย
    348 คำเสนอราคา
    Comprehensive Appointment Booking System
    15 ชั่วโมง left

    I'm seeking a skilled developer to create a web-based appointment booking system tailored for consultations and meetings. Key Features: - Calendar Integration: Sync with Google Calendar, Outlook, etc. - Automated Reminders: Email/SMS notifications for upcoming appointments - Online Payment Processing: Secure transactions via a payment gateway - Slot Booking: Users can select and book available time slots Ideal Skills and Experience: - Proficiency in web development (HTML, CSS, JavaScript) - Experience with calendar APIs and payment gateways - Strong background in building user-friendly interfaces - Knowledge of setting up automated reminder systems - Fully Application - mob responsive (PWA} Looking forward to your expertise in bringing this project to life!

    $125 Average bid
    $125 การประมูลเฉลี่ย
    111 คำเสนอราคา
    Wandelbuddy Webapplicatie Ontwikkeling
    10 ชั่วโมง left

    Beste heer/mevrouw, Voor een eenvoudige webapplicatie waarmee mensen een wandelmaatje in hun regio kunnen vinden, ben ik op zoek naar een programmeur. Zou u op basis van onderstaande specificatie een offerte kunnen opstellen? Er is geen haast bij. Met vriendelijke groet, Medard Scholten 06 450 87 492 Wandelbuddy Een applicatie waarmee wandelaars uit dezelfde regio elkaar kunnen vinden om samen een stukje te wandelen. Leeftijd en geslacht zijn daarbij minder belangrijk dan bij een datingsite; eventuele voorkeuren kunnen eenvoudig in het vrije tekstveld worden vermeld. Gebruik en oproepjes • Bezoekers hoeven geen account aan te maken of zich te registreren. • Bezoekers kunnen oproepjes bekijken binnen hun twee-cijferige postcodegebied. • Bezoekers kunnen zelf een oproepje plaa...

    $484 Average bid
    $484 การประมูลเฉลี่ย
    121 คำเสนอราคา
    Automated Checkout Tool Development
    9 ชั่วโมง left
    ยืนยันแล้ว

    Looking for an experienced developer to build an automated checkout tool (request-based preferred) for online stores. Target sites: - Shopify stores - BASE () shops in Japan - Several other Japanese e-commerce sites (details shared after discussion) Requirements: - Proven experience building checkout automation / web automation tools - Experience handling captcha, queue systems and bot protection (Cloudflare, Akamai, etc.) - Support for proxies (Japanese residential IPs), multiple profiles and tasks - Familiar with Japanese address/phone formats and payment flows is a big plus - Clean, documented code. Source code must be pushed to my GitHub repo Project structure: - Start with ONE module (Shopify) as a paid trial milestone - If successful, continue with BASE and Japanese sites as separ...

    $981 Average bid
    $981 การประมูลเฉลี่ย
    260 คำเสนอราคา

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