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?

From 290,797 reviews, clients rate our AJAX Developers 4.87 out of 5 stars.
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    21 jobs found, pricing in SGD

    I need an Online Course Advisor System that can suggest courses based on user preferences. The system should recommend in-person courses only. The ideal candidate will have experience in php, mysql, js, css, and adding databases using the Ajax Xamp Server. The project also requires an Entity Relation diagram and Data Flow diagram. The system should have user registration and login, course reviews and ratings, and personalized course recommendations.

    $10 - $25
    $10 - $25
    0 bids

    Hello I need a simple app using jquery and Cordova along with a web app for the same. You must also have knowledge of mongodb, Please apply if you have the required expertise. No teams or companies please.

    $184 (Avg Bid)
    $184 Avg Bid
    2 bids
    lsl to php mysql 6 days left
    VERIFIED

    lsl ' linden scripting language ' most is already written in the form of 2 scripts to be made into a single script PHP most of which is already completed just the purpose and functionality need a slight adjustment. 2 extra parts to be added to the database from lsl but its simply an output of typed text.

    $38 (Avg Bid)
    $38 Avg Bid
    22 bids
    Need an expert in Cordova 6 days left
    VERIFIED

    Hello I need an expert in developing we app and having expertise in Cordova. Please apply if you have the required expertise No teams or companies please

    $233 (Avg Bid)
    $233 Avg Bid
    5 bids

    I have a budget of 18 usd, in order to update the receipt of the api data! to be able to receive the callback from the api in the background

    $24 / hr (Avg Bid)
    $24 / hr Avg Bid
    60 bids

    Please read before bidding : 1. We have one feature file upload task. it is working completely. but need to reduce the file size before uploading 2. Mobile number validation tasks. A mobile number already exists validation need to be input. 3. check in the backend apis of the mobile app for OTP is not coming. in our application.

    $171 (Avg Bid)
    $171 Avg Bid
    38 bids

    React.js SPA with datatables and Auth 1. Topbar with Logo on the left and login Link/logged in user on right 2. Collasible Sidebar with 4-5 menu items and submenu 3. Two Data table below topbar with 6-7 columns (no auth) - rows added/updated dynamically (data from axios api) - rows paginated (10rows) and not sortable - First column has links to show another table (requires Auth) - The link opens new table and replaces original table ((requires Auth)) - has 5-7 columns - rows added/updated dynamically (data from axios api) - rows paginated(100) and not sortable 4. have to integrate with AWS amplify and cognito as Auth provider 5. dark themed UI

    $664 (Avg Bid)
    $664 Avg Bid
    91 bids

    More details: Our Existing ERP is product based, but created it using VB net and Dot net with old architecture, we would like to create a module (as a new project) with the old database connection and create QR for our products

    $133 (Avg Bid)
    $133 Avg Bid
    12 bids

    More details: Our Existing ERP is a product based but created it using VB net and Dot net with old architecture, we would like to create a module (as a new project) with the old database connection and create QR for our products We have the design ready and QR code logic ready. The design and logic files are attached. Required to be completed in 24 hrs

    $141 (Avg Bid)
    $141 Avg Bid
    10 bids

    I am in need of a freelancer to install a personal weather station. The weather station is wireless and I require the installation of 1-3 sensors. There are no additional features required for the weather station. Ideal skills and experience for the job include knowledge of weather station installation and experience with wireless technology.

    $47 (Avg Bid)
    $47 Avg Bid
    1 bids

    I am looking for a PHP developer to create a CRUD system for dynamically inputting fields on existing invoices

    $49 (Avg Bid)
    $49 Avg Bid
    38 bids

    I have a Codeigniter based system that I need some features added. The features are as follows: 1. Modify the add appointment screen to be like attachment 1. Basically this is a form that has 3 Select Dropdowns with search option. The data is drawn from a master list (might need db table creation for the master list for hospital, insurance, payment methods) 2. Modify the case history screen to be like attachment 2. Basically this is an accordion with text edit features and a title. The data saved is unique to each patient and visit. 3. Make form on attachment 1 to be the main form on Addition of Appointment. The data saved there should be displayed on the dashboard on the waiting list as attachment 3. The data on attachment 1 should be displayed on attachment 3. e.g if the radio button Ou...

    $34 (Avg Bid)
    $34 Avg Bid
    18 bids

    I have a Codeigniter based system that I need some features added. The features are as follows: 1. Modify the add appointment screen to be like attachment 1. Basically this is a form that has 3 Select Dropdowns with search option. The data is drawn from a master list (might need db table creation for the master list for hospital, insurance, payment methods) 2. Modify the case history screen to be like attachment 2. Basically this is an accordion with text edit features and a title. The data saved is unique to each patient and visit. 3. Make form on attachment 1 to be the main form on Addition of Appointment. The data saved there should be displayed on the dashboard on the waiting list as attachment 3. The data on attachment 1 should be displayed on attachment 3. e.g if the radio button Ou...

    $46 (Avg Bid)
    $46 Avg Bid
    17 bids
    SpectrumIQ 2 days left

    I am looking for a freelancer with intermediate expertise in data management to help me with my SpectrumIQ project. The main goal of the project is to manage data effectively. I would prefer to use SQL Database as the platform for this project. The ideal freelancer should have experience in SQL and data management. They should be able to organize and manage data, create efficient data structures, and ensure data accuracy and integrity. Additionally, they should have experience in designing and implementing data management solutions that meet the needs of the project.

    $994 (Avg Bid)
    $994 Avg Bid
    10 bids

    I need web application which I must create, edit and save in my server any word document in online. I need php js ajax app which I must open any word document from server and edit. after editing I must send it to server via api.

    $237 (Avg Bid)
    $237 Avg Bid
    45 bids

    Tambola, Lottery, Lucky Draw, Agent online gaming Platform with mobile user, payment registration mobile App. UI etc. other details will be discussed over call. 91 - 9891 859 289. Full end to end architecture, development, delivery incl. code, database, etc. deployment, performance, testing is desired.

    $527 (Avg Bid)
    $527 Avg Bid
    11 bids

    We are seeking a skilled app developer who can create an Android app with advanced graphic features similar to Canva. The ideal candidate will have experience designing and developing apps for Android and will be able to deliver the project within 3 months. Key requirements for this project include: - Developing an Android app with advanced graphic features - Providing a user-friendly interface for easy navigation - Ensuring the app is compatible with multiple devices and screen sizes - Delivering the project within 3 months If you have experience developing Android apps with advanced graphic features and are confident in delivering this project within our timeline, we would love to hear from you. Please include examples of similar work you have done in the past.

    $3254 (Avg Bid)
    $3254 Avg Bid
    45 bids
    App developer 1 day left

    I am looking for an experienced app developer to build an innovative Android application. This app will feature cutting-edge graphics, such as those seen in Canva, and specialize in utility and social functions. I have a detailed list of features and functionality I would like to include in the app, so it is important to find someone who is knowledgeable with such development. The successful candidate should be comfortable with designing, coding, and troubleshooting Android apps. This project requires creative thinking, excellent attention to detail, and the ability to work independently and meet tight deadlines. If you feel you have the necessary skills and experience to complete this project, I look forward to hearing from you.

    $3253 (Avg Bid)
    $3253 Avg Bid
    46 bids
    Customize Filter Plugin 1 day left
    VERIFIED

    I am looking for a skilled developer who can create a new filter plugin for my website. Currently, I am using the Advanced AJAX Product Filters plugin but I need a more customized solution to fit my needs. The ideal candidate should have experience in developing WordPress plugins and be familiar with AJAX and PHP programming. The project will involve creating a new filter plugin with extra filter options and improving the filter UI/UX. The plugin should be user-friendly and easy to navigate. I need this project completed within two weeks, so I am looking for a developer who can work efficiently and deliver high-quality work within a tight deadline. We will release milistone payment only after Completion and 100% Quality Tested

    $235 (Avg Bid)
    $235 Avg Bid
    82 bids

    I'm looking for a skilled php programmer with javascript and jQuery and html and web design and development skills who's capable of making an anonymous chat room for Christians to get the help they need from ministers. HTML, CSS I'm trying to make a site very similar to jesuscares.com. I also need to know the estimated time it will take you to complete the project. I must warn you that I am currently very low on funds, so I'm looking for something affordable. Knowledge of HTML 5 and Javascript apis is probably helpful in creating a good web application that will be compatible on multiple devices and display properly on each one according to different css stylesheets for different devices. I'm looking for responsive design. I will most likely also hire someo...

    $222 (Avg Bid)
    $222 Avg Bid
    29 bids
    rocketreach.co data scrape Ending left
    VERIFIED

    Hi I have excel sheet, with names and company name around 8000 just needs to search and scrape search results, new scraped name job title company full location country LinkedIn link its all available on that site login access will be provided scrape data that matches with search name and company name -its easy for someone who knows coding -automated scraping attached file

    $72 (Avg Bid)
    $72 Avg Bid
    43 bids

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