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 295,556 reviews, clients rate our AJAX Developers 4.86 out of 5 stars.
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    Hello, I’m looking for a full stack developer based in Malaysia who is knowledgeable in web-based applications and is able to work remotely. I’m not looking for a programmer who is versed in specific frameworks or libraries, rather I’m seeking someone with general knowledge of the subject matter. The position requires the developer to undertake tasks remotely, however depending on the project, there may be a requirement for on-site work. If you feel you have the skills and experience required for this role, I look forward to receiving your application.

    $544 (Avg Bid)
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    I want to keep stock for my motorola mc55 by assigning a shelf number When the product is sold, the shelf number will be displayed when the product code is entered and it will be deducted from the stock.

    $192 (Avg Bid)
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    frontend data with datatable 5 days left
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    We have the database categorized with the following data id, category, document number, date, detail, pdf url We need to create a main page like this: and in each sub page a datatable according to the category and the current year and have its own search engine by document number, month, year and detail, as shown in this example: We do not want it in wordpress, it is to integrate into a page made in html and php we want it as is the example add the word DATATABLEFE to read your proposal

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    PHP Code File Needs a Fix 5 days left
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    I am running a video tube with this script: - Rocky Linux 8.7. - Apache + Nginx Proxy - PHP-FPM - PHP 7.4 I've got a little custom script written in PHP to transfer video files automatically to the tube. Just need to move files in a specified folder on the server and the script does everything: - selects username if specified - cleans file names - selects a specified category - generates tags from filename - move video to encoding queue The issue is that the script creates 5-10 duplicate entries for each video. I would like it to be fixed. Note that I can't disclose the website. I can test the fixed script as much as needed. Find attached the script. You can have a look. Contact me only if you find out the problem.

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    Looking for some software for a child learning facility. This should be a web based software built using javascript, jquery, php and mariadb. Requirements: • Develop a schedule to track teachers/employees hours worked • Teachers/employees may be scheduled to work in different locations • Teachers/employees will need their own login to view their schedule • Reports that show an employees hours worked vs hours scheduled • Employees hours will need to be tracked by them signing in and out of work using a tablet. • Employees will be able to login and request time off • System should track employees time off (vacation, sick, etc) • System should be able to export total hours worked weekly for each employee to a csv file • System will track paid ho...

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    I am looking for a Freelancer who can optimize my product page with AJAX, Lazy Loading & Jquery, and also solve any existing errors.

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    we already have a program that is working and we want to add new functionality Current situation of project : When we upload the file, we have low high and mid controls. At this point on uploading the file, we can change low mid and high values and hear on speakers in real time What Needs to be done by the Freelancer ( Below details will be very easy for those that have worked in WebAudio API to understand what we want ) When we upload the file and then play with low mid and high - it changes audio sound. We want that with the new function (new code) That changed audio sound - Can we download as well This is the new functionality that needs to be added into the existing code The entire work is in Javascript (.JS) So expert level in (1) WebAudio API is a must followed by expertis...

    $14 / hr (Avg Bid)
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    Senior web developer with extensive experience in PHP and Javascript, who will optimize the product lazy loading page and solve the error of lazy loading. This project requires proficiency in PHP, JQuery, and AJAX languages. The scope of this project is focused on product page lazy loading and optimizing the product page. NOTE: no code will be shared. The developer will work remotely.

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    Hi, I am looking for an experienced programmer to help resolve an issue with a module graphique pop up. The pop up is not working after we move it. This pop up is suppose to validate some dots datas on a graph. Here is a video showing the issue : Not sure if it's javascript or ajax. Only bid if you know you can solve this. Bid with your final price only.

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    PHP developer 4 days left
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    We are seeking for a php developer to join our ongoing projects. The requirements are : - PHP/Yii1 framework - advanced MVC and module extension knowledge required - mysql/mariadb and postgres databases advanced knowledge - manual sql queries writing required - javascript/jquery mostly, angular sometimes. - docker basic knowledge 3+ years of experience would be nice, but we can work with an junior also. You will be have working on full scale large projects, so vetting process will be a long one, company NDA is a must.

    $8 / hr (Avg Bid)
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    fix small jquery script 4 days left
    VERIFIED

    I am looking for someone to help fix a small jquery script. The script is written in jQuery, so you need to be familiar with that language. I need the script tested and also modified, if necessary, to improve its functionality. Once you’re done, I need the script uploaded onto the server. Even if the script works as intended, I would like a report on what you changed, and the results of any tests that you conducted. The scope of this project may change depending on the results of the work. Please let me know your experience related to this project. Thank you! Here the error: Access to XMLHttpRequest at '$SERVER/' from origin 'http://localhost' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

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    I want to setup a 4 column ajax php drop down, database and tables everything ready, just want to prepare a 4 column dependent drop down , based on grade / class (eg:11,12) column 2 should load subject names(eg: Physics/Chemistry/Biology) based on column 2 selection, column 3 should load lesson name(eg: living worlf, animal life), based on column 3 values, column 4 should laod set number. All table data are ready, Kindly contact if you alreday done such drop down before.

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    I'm looking for a web developer who can effectively create a PHP and Javascript based interactive India map with its internal regions separated into districts. The interactive map should be designed in such a way that it provides an enhanced level of user experience. The project should include coding in the languages of PHP, Javascript and HTML, and must also have the capability to enable zoom functionality. Additionally, the interactive map will be used to demarcate India’s internal region geography and population data specific to certain districts. I am looking for someone with technical expertise in creating similar work, with a high degree of accuracy. If you believe you have the skills and experience to fulfill this requirement, please reach out and we can begin discussing...

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    I have a web page (attached) that opens modal popups for audios, videos, and multiple levels of text. Clicking ESCAPE calls a function that closes one popup (just one level). If there are more than two popups open, it closes the top one. REQUEST: I want the browser back button to do the same thing as clicking "Escape". In other words, I want the browser back button to have the effect of closing one popup. HOWEVER: If there are no popups open, then clicking the back button should take user away from the page. Therefore, using a method won't work here. Such a solution would lose all modal/popup levels anyway. I believe the solution needs some combination of pushState, popState, replaceState, and/or perhaps something I'm not aware of. *This is a request for JavaScript...

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    Angular Developer 1 day left
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    Angular Developer need for task basic task

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    I am looking for a React Native/Typescript/Watermelon DB/MySQL expert to help with bug fixing on a large codebase. On setting up remote DB something is wrong with Watermelon DB. The successful applicant will possess great problem-solving skills and the ability to work efficiently to meet deadlines. If you are experienced in the required fields please submit a bid and I look forward to your response.

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    Freelancer for Angular 1 day left
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    I'm seeking a skilled Angular developer experienced in website development to complete a complex project. The details are as follows:- - Develop User interfaces for Modern Rich Internet Applications with Angular - Develop application code and unit test in the angular 2+, HTML, CSS - Ability to use REST Services for Web Application development - Should have Strong expertise with HTML, CSS, and writing cross-browser compatible code. - Good understanding of AJAX and JavaScript Dom manipulation Techniques - Experience in using RESTful services - Hands on and implements complex Angular JS applications, directives, controllers, services - Critical thinker and problem-solving skills - Team player - Good time-management skills - Great interpersonal and communication skills - Should have do...

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    1. Configure Issabel to perform a cURL request to a PHP Endpoint posting Caller ID Number 2. Display upcoming call informing from MySQL through a Popup using AJAX and Javascript to a PHP-driven page

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    15 bids

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