Ajax, or Asynchronous JavaScript and XML, is a powerful development technology used to create faster and more dynamic web applications. This means that an AJAX developer or engineer helps businesses create the most responsive web experiences for users. Through its interaction with the server, AJAX can improve the performance of web applications, aiding in loading time and overall responsiveness. With Ajax, web developers can create complex user interfaces from multiple data sources that use far fewer resources than traditional web-based applications. Ajax-enabled applications also tend to be more accessible, being compatible with a wide range of browser technologies such as HTML, CSS and JavaScript.

An AJAX Developer's expertise helps to build look attractive but simple user interfaces. They take complex application architectures and make them simpler for users by defining how to collect data from different sources and how to display it in a unified interface. They also make sure that their applications are device-independent and compatible with their intended devices.

Here’s some projects that our expert AJAX Developers made real:

  • Creating login pages quickly and securely
  • Building hotel websites with powerful API integrations
  • Designing efficient user interfaces to enable sorting of posts
  • Facilitating likert scale forms using modern frameworks
  • Developing single pages using databases, PHP, and libraries like Handsontable
  • Constructing efficient digital download scripts using core PHP
  • Expertly uniting CSS, Bootstrap, MySQL, AJAX, and JQuery
  • Crafting easy Shopify buttons for adding subscription products

Freelancer has the perfect AJAX Developer for your project needs. Having someone on-hand who is knowledgeable in asynchronous request handling makes online experiences smoother for everyone involved. From simple page elements right through to complex application architectures, an expert AJAX developer can bring your website ideas to life. Why not post your project today on Freelancer and get started on your way to improved website performance?

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    We are seeking a front-end web developer with over 3 years experience to join our team. As a front-end developer, you will be responsible for the user interface of our web application. Qualified candidates will be expected to have a working knowledge of HTML5, CSS, and JavaScript and of user interface and user experience (UI/UX) design. Your duties will include turning wireframes and mock-ups into reusable code and building high-quality UI components with scalability in mind. You will also be responsible for implementing new features to our application, handling the integration of plugins, and performing routine maintenance and performance optimizations. Note: The ideal candidate will use a blended approach to development, that is a combination of pure HTML, CSS, and JavaScript and use of...

    €9 / hr (Avg Bid)
    €9 / hr Keskimäär. tarjous
    134 tarjoukset
    developer Laravel 5 päivää left
    VARMENNETTU

    Am nevoie de un developer Laravel care să poată lucra la diferite aspecte ale aplicației mele. Responsabilitati cheie: - dezvoltarea diverselor module dintr-o apelicatie web realizata cu Laravel - integrare cu diverse API - modificare de module existente in laravel - Folosirea Javascript si ajax in combinatie cu laravel Candidatul ideal: - Cunoștințe avansate în Laravel, cu un istoric dovedit în dezvoltarea de aplicații similare. - Cu experiență în implementarea și integrări API. - Capabil să creeze module noi si sa le modifice pe cele vechi. - Cunostinte javascript si ajax. - Un om muncitor si maleabil - Disponibilitiate 2-4 ore/zi (luni-vineri) pentru lucru prin git / Bitbucket - Disponibilitate de lucru in echipa.

    €12 / hr (Avg Bid)
    €12 / hr Keskimäär. tarjous
    13 tarjoukset

    I'm seeking an expert who can provide a comprehensive tutorial and practical implementation of PrimeFaces JSF Datatable, specifically focusing on data ordering. Data ordering, html, multiple sorts - Tutorial & Practical: I need both a detailed guide and hands-on assistance to implement the PrimeFaces Datatable in my project. - Data Complexity: The data I'm looking to manage is quite advanced. It includes dynamic columns, complex data structures, and requires AJAX updates. - Features Required: I'm particularly interested in incorporating Sorting, Customized Column Rendering, Grouping, and Row Selection functionalities within the Datatable. The ideal candidate for this project should have: - Extensive experience with PrimeFaces JSF and Datatable component - Proven track r...

    €21 (Avg Bid)
    €21 Keskimäär. tarjous
    12 tarjoukset

    I'm looking for an experienced developer to build a feature-rich travel portal for both B2B and B2C purposes. The portal will serve as a one-stop platform for booking flights, hotels, bus tickets, car rentals, and even IRCTC train tickets. Key Features: - Flight, Hotel, Bus, Car, and Train Booking: The portal should offer seamless and efficient booking options for all these travel modes. - Extensive API Integration: The platform will need to integrate around 10 APIs, including Amadeus, Makemytrip, tripjack, , and goglobal. - User Management System: The portal should support user registration and login, profile management, booking history and management, back office management, and wallet management. Ideal Skills & Experience: - Proficiency in API integration, especially with tr...

    €563 (Avg Bid)
    €563 Keskimäär. tarjous
    68 tarjoukset
    WooCommerce Shopping Cart Speed Boost 4 päivää left
    VARMENNETTU

    I am seeking a skilled WooCommerce developer with experience in optimizing shopping cart performance. My site primarily deals with digital products and the project is focused on enhancing the loading time of the shopping cart. IMPORTANT: Our site is highly optimized and the page does not need optimization. However, our shopping cart takes 3.8 seconds to load and should be looked at by a technical mind to make the load time much shorter (targeting to 2 seconds). I asked our webhost for help and here are possible checkpoints to improve loading speed: - Ensure that WooCommerce's built-in caching is enabled. Also, consider minimizing AJAX calls that occur when products are added to the cart. - Sometimes, AJAX requests can slow down the response time if they're not absolutely ...

    €16 / hr (Avg Bid)
    €16 / hr Keskimäär. tarjous
    148 tarjoukset

    I'm seeking a skilled mobile developer to create a face recognition attendance tracking application for Android. This app will be designed to efficiently and accurately monitor the attendance of employees. Key features and requirements: - Development to be based on OPENFACE SDK. - The app must work seamlessly with an internet connection. - Focused on employee attendance tracking, not student or event monitoring. - The attendance process should be user-friendly and intuitive for employees. Ideal skills: - Proficiency in Android app development. - Experience working with face recognition technologies, particularly OPENFACE SDK. - Understanding of efficient data handling and secure internet connection implementation. - A portfolio demonstrating successful and similar projects would be ...

    €376 (Avg Bid)
    €376 Keskimäär. tarjous
    24 tarjoukset
    whatsapp-web.js API Implementation 4 päivää left
    VARMENNETTU

    I'm looking for a developer experienced in working with the API. The primary goal of this project is to implement this API effectively. Key Requirements: I want create api in php to Generate QR Code, Receive Status Of QR code if its logged in Send Text , Multimedia Sms Send Group Sms Send Broadcast Sms Get notification Of Incoming sms in callback

    €11 / hr (Avg Bid)
    €11 / hr Keskimäär. tarjous
    41 tarjoukset

    I'm experiencing sluggishness with my software, but the specific triggers or patterns aren't currently known. Similarly, I haven't defined the operating system I'm running on or length of time this issue has persisted. To help me, you should: - Have experience in troubleshooting and optimizing software performance across various operating systems, as it's not specified whether my software runs on Windows, Mac, or Linux. - Be good at identifying and analyzing patterns that could be causing software deceleration. - Possess sound diagnostic skills to deduce why the software has been running slow, despite lacking information on the time frame. Your ability to perform well despite little information is crucial for success. Please, only apply if you're confident y...

    €11 (Avg Bid)
    €11 Keskimäär. tarjous
    5 tarjoukset
    Real Experience in Jibe 3 päivää left

    I want collaborate if you have real experience in Jibe. Build an RBM messaging servers.

    €146 (Avg Bid)
    €146 Keskimäär. tarjous
    19 tarjoukset

    I'm seeking a skilled PHP developer to work on our upcoming web application. The main goal of this project is to develop this application from scratch. Requirements: - User Authentication and Authorization: The application will cater to a diverse audience, ranging from the general public to registered members and administrators. As such, ensuring secure and efficient user authentication and authorization is paramount. - Real-time Data Processing: The application will be handling real-time data. Thus, the ability to process this data swiftly and accurately is key to the success of our project. - Payment Gateway Integration: A key component of our application will involve payment processing. The developer should be able to integrate a payment gateway seamlessly into the application. ...

    €282 (Avg Bid)
    €282 Keskimäär. tarjous
    37 tarjoukset
    Scrapy Developer 2 päivää left
    VARMENNETTU

    We've a opening for a Scrapy Developer. Description: - Designing crawler for extracting data for various market sources. - Utilising country switcher whenever possible for multi version of sites. I,e en-us, zh-hk version of site. Desired skills: - Scrapy - Splash (nice to have) - Ajax/XHR API simulation for JS rendered site - Git/Bitbucket - Phyton - Jira (nice to have) First you make one crawler for a fixed price. You will receive access to a sample Bitbucket project with an example crawler. When the first crawler you've build is good we can continue on an ongoing basis (9 EUR per hour).

    €12 / hr (Avg Bid)
    €12 / hr Keskimäär. tarjous
    47 tarjoukset

    Need to work remotely on andyesk , team viewer, ultraviewer I'm in need of a skilled developer with expertise in CodeIgniter 3.1 with HMVC Framework to work on a multi-hospital system. The system already has been developed, however, there are some modifications and additional features that need to be implemented. Your responsibility will include the following: - Implementing User roles and permissions as the highest priority functionality - Developing and integrating Activity logs - Configuration of SMS API for communication - Ensuring the system has the capability to manage multiple hospitals via subdomains and main domain - Handling modifications and errors for existing functionalities - Modifying the pharmacy point of sale (POS) - Setting up a backup and restore system Your ex...

    €273 (Avg Bid)
    €273 Keskimäär. tarjous
    30 tarjoukset

    It is a WordPress-based website. I need a developer to help me with Adding font to my website (Incorporate the same fonts used on Neil Patel's website (). Upon inspection, it appears that the font 'geo-wf' is used) I have added a nav menu on my homepage on my localhost which includes PHP, CSS, HTML, and Ajax You need to separate some CSS, HTML, and JavaScript into already existing separate files to ensure optimization and minify CSS through NPM Scripts Skills & Experience: - Proficient in CSS, HTML, JavaScript, and Ajax - Strong understanding of PHP code organization - Experience in code refactoring and bug fixing - Proven track record of optimizing code for performance My website : Moreover, it's essential to show me how you minified the CSS code. Ple...

    €16 / hr (Avg Bid)
    €16 / hr Keskimäär. tarjous
    153 tarjoukset

    Two Pages: A responsive web design (RWD) website using jQuery and BootstrapV5 to record heart rate (HR) data via Bluetooth with the Polar OH1+. Modification time: 20:00, 06/11, 2024 GMT+8 References:  Polar OH1+ Optical heart rate sensor:  This demo program can read the Heart-rate data from one Polar OH1+ continuously: Task description: Platform: Web browsers on iPad and Desktop (Mac & PC Windows) We need to develop a responsive web design (RWD) website that can communicate with Polar OH1+ via Bluetooth to record the heart rates (HR) of 1 to 10 users simultaneously. This website will include the following three pages: 1. Page 1 - User profile input/edit page: The personal profiles of up to 10 OH1+ users are displayed as 10 blocks on a screen. The admin of this website c...

    €251 (Avg Bid)
    €251 Keskimäär. tarjous
    52 tarjoukset

    As a client, I'm currently in need of a skilled React Native developer to help me to develop some new features to a social networking application for both iOS and Android platforms. Key Features: The job to be done is divided in 2 main tasks: - travel home restyling, in a Netflix-like style, divided by categories - a new feature: people search based on 4 filters and connection to a third-party chat service. No API development needed. Ideal candidate for this project should have: - Strong experience developing React Native applications for both iOS and Android. - Previous work on social networking applications, preferably with messaging features. - A solid understanding of creating and optimizing news feeds within apps. - Ability to work collaboratively and communicate effectively.

    €2420 (Avg Bid)
    €2420 Keskimäär. tarjous
    95 tarjoukset
    SAP UI5 Developer Required 21 tuntia left
    VARMENNETTU

    SAPUI5 Developer Required for various projects utilizing all SAP Modules (PM, FI, CRM etc) Expert knowledge on Data Binding P13n Filtering, Sorting and Dynamic Fields Custom Fields and Enhancements SAPUI5 Model, View and Controller SAPUI5 OData knowledge Strong JavaScript experience required SAP BTP Experience Requirements 1. Must be available in SAST Timezone 2. Must be available on weekends 3. Flexible work arrangement as and when required Candidate must have developed +- 50 custom SAPUI5 applications end-to-en

    €15 / hr (Avg Bid)
    €15 / hr Keskimäär. tarjous
    50 tarjoukset

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