AJAX Developers & Consultants

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AJAX (shorthand for asynchronous JavaScript and XML) is a group of interrelated client-side web development techniques used to create interactive web applications or rich internet applications. AJAX is used by web applications to return data in the background without interfering with the display and behavior of the existing page. On Upwork, the world’s largest online workplace, companies hire AJAX developers to successfully complete jobs including site administration, video integration and submission forms.

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AJAX Job Cost Overview

Typical total cost of Upwork AJAX projects based on completed and fixed-price jobs.

Upwork AJAX Jobs Completed Quarterly

On average, 656 AJAX projects are completed every quarter on Upwork.

656

Time to Complete Upwork AJAX Jobs

Time needed to complete a AJAX project on Upwork.

Average AJAX Freelancer Feedback Score

AJAX Upwork freelancers typically receive a client rating of 4.65.

4.65
Last updated: July 1, 2015
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  1. Marcin M.

    Marcin M.

    Web Data Extraction and Regexp Expert

    Canada - Last active: 2 days ago - Tests: 2 - Portfolio: 1

    Software Developer specializing in Web Data Extraction and Manipulation. Expert in web data retrieval (web scraping), data manipulation (using regular expression parsing) and website change monitoring. • Fluent in English, French, Polish, and Spanish. • Government of Canada Secret Security Clearance (avail. on request). • Very organized, innovative, and dedicated to work. • Excellent communication skills (both written and spoken). • My TV interview: youtube.com/watch?v=MmRkoF3IaQ8 My objective is to deliver quality solutions and leave my clients satisfied.

    Groups: Crossrider

    $33.33 /hr
    2,534 hours
    5.00
  2. Ruslan Ponomarenko

    Ruslan Ponomarenko

    IPhone (Objective C), Android, C# Developer, VBA, TSQL, VB ACCESS

    Ukraine - Last active: 1 day ago - Tests: 6 - Portfolio: 6

    I am experienced in development of mobile software both for iOS (iPhone, iPad, Desktop) , ANDROID . My preferred languages are Objective-C, Java, C# (.NET), PHP. This allows me to participate successfully in cross platform projects, including network services and GUI applications. I mostly work under development of iOS Mobile applications at the moment but my experience includes development of ANDROID applications (Java) and Desktop applications (C#, Cocoa), Web Applications (PHP, C# Asp.NET). My programming experience will enable me to fulfill your task successfully and quickly enough!

    $36.67 /hr
    4,922 hours
    4.84
  3. Roman V.

    Roman V.

    Web developer

    Russia - Last active: 1 day ago - Tests: 12 - Portfolio: 12

    Lately my work is about integrating Bitcoin-related functionality in websites or developing special purpose apps, like a bitcoin trading bot or a websocket chat. It involved various technologies: node.js, websockets, Ruby, Sinatra framework, Blockchain.info API, PayPal API. During the years of my work prior to this I've performed a big variety of tasks in developing and reworking websites. This involved a lot of programming with PHP+MySQL, layout works with HTML+CSS, Javascript (with and without jQuery), AJAX. I had experience working with various CMSs: OpenCart, Joomla!, Wordpress, MODx Revolution, DataLife Engine, SimplaCMS, self-written websites. Also with different frameworks: MODx, Yii, also self-written MVC structures. I also use regular expressions (RegExp) fluently and have quite some experience with that. I've integrated a number of payment systems in several websites, which included PayPal, Bitcoin (native and via Blockchain.info API) and russian WebMoney, Yandex.Money, QIWI, Robokassa. All payment processors utilize mainly same principles, so it's no problem to learn and integrate something new quickly. My work included creation of web grabbers and parsers that process information from external websites, for example to fill up an online store database. Also setting up and administrating Linux/FreeBSD VPS servers: installation and configuration of Apache, PHP, MySQL, Python and some other uncommon software. Aside from pure web, I've developed Python and Ruby scripts for various services. A part of that was developing Bitcoin-related services, including API communication with bitcoind daemon, automated receiving/sending Bitcoin payments, trading on BTC exchanges via their API, and other stuff. I'm looking for interesting work opportunities that would let me develop my skills and acquire new ones. Cryptocurrencies are especially interesting to me, but if it's not the case, no problem. Most likely I can be useful to solve your programming issues, so feel free to contact me.

    $40.00 /hr
    242 hours
    5.00
  4. Jc mae P.

    Jc mae P. Agency Contractor

    Full-Stack Web Developer - experienced in WordPress, Drupal & Magento

    Philippines - Last active: 1 day ago - Tests: 9

    I have over 7 years experience in web design and development and almost 7 years experience as a writer. I have developed a wide range of websites mostly using Wordpress (my CMS of choice), Drupal and Magento but have also created websites from the ground up using HTML, XHTML, DHTML, PHP and MySQL for companies and a number of personal sites. I also do graphic design, organic SEO, write articles and press releases and am a pretty good researcher as well. As of the moment, I am mostly concentrating on designing and developing WordPress and Drupal themes for commercial and personal sites.

    Associated with: Khleomix Designs Agency

    $33.33 /hr
    5,969 hours
    4.51
  5. Murshed A.

    Murshed A. Agency Contractor

    Technical Director / Team Lead / Software Architect /Software Engineer

    Bangladesh - Last active: 1 month ago - Tests: 2 - Portfolio: 4

    Die hard coder, Unix server admin, Open source enthusiast, Localization Expert, PHP Expert, Apache-Solr ecosystem Expert, Unicode, Web geek. The wounded coder, determined not to stop before killing all bugs!! The samurai, bug hunter willing to create a bug free world for all humans!! PHP/MYSQL, Ruby On Rails, Joomla!, Wordpress, Drupal, PERL, Javascript, Prototype, jQuery, MooTools, PHP MVC frameworks (CodeIgniter, Zend Framework), Magento, Sphinx, Lucene, Apache Solr, Nutch, Web Services, Maria DB, Apache, Nginx, Memcache ... Do you have a tech challenge? Put me on...

    Groups: Application Developers Alliance, Bluehost Developers and Designers

    Associated with: Samurai Geeks

    $33.33 /hr
    1,240 hours
    4.54
  6. Irene Ladyko

    Irene Ladyko Agency Contractor

    Java/C++ Developer

    Russia - Last active: 26 days ago - Tests: 1

    OBJECTIVE : I am focused on brining success into our clients' business. I have developed a number of desktop and web applications using C++ and Java technologies accordingly. I am proficient in the following languages: Java, C++, JavaScript, SQL, Python, Bash. I am proficient and specialize in the following technologies: Spring, Hibernate, REST services, MySQL, Postresql, JQuery, JDBC, Qt4, wxWidget, boost and more. Feel free to contact me. KEYWORDS:C++, C, WinAPI, MFC, wxWidgets, Qt4, SQL, Assembler, HTML, OOP, design Java, Spring, Hibernate, JDBC patterns, UML, XML, SOAP, WSDL, BPEL, IBX, BDE, algorithm & data structure development, multithreading patterns. ACE, boost, CppUnit, XPMicrosoft Visual Studio, Borland Delphi, Borland C++ Builder, Borland Interbase Server, doxygen, BoundsChecker, makefiles, qmake, Microsoft Office.

    Associated with: ISS Art, LLC

    $33.50 /hr
    5,529 hours
    4.71
  7. Fabio B.

    Fabio B.

    Software engineer

    Colombia - Last active: 4 months ago - Tests: 3

    I am a developer and architect with vast experience in many areas and languages. I love complex issues and especially am eager to jump on new challenges and learn new stuff. Expect well-delivered work above expectations with excellent documentation, reporting and communications. This is your chance to hire an experienced professional matured in Switzerland in high-demanding Swiss bank environments and now living in South America at unbeatable rates! And I fluently speak 7 languages...

    Groups: Crossrider

    $44.44 /hr
    265 hours
    5.00
  8. Gareth Nelson

    Gareth Nelson

    Python/PHP/C/C++ Developer, Linux/unix system administrator

    United Kingdom - Last active: 06/28/2014 - Tests: 10

    I'm a generalist software engineer/developer competent in multiple languages but specialising primarily in python and C++.My main areas of interest include backend website development (CMS systems into which designers can plug their own templates and themes), web services (including XML-RPC, REST and AJAX backend), AI and machine learning (neural nets, bayes, probalistic inference, evolutionary programming) and virtual worlds. I am seeking mixed opportunities to which I can bring my mixed academic computer science and practical development knowledge and skills. I am also interested in anything relating to FreeBSD, OpenBSD or linux system administration and configuration of all types and have extensive experience to draw upon.

    $55.56 /hr
    21 hours
    5.00
  9. Manfred U.

    Manfred U.

    Development, QA and Security, Forex

    Austria - Last active: 10/06/2014 - Tests: 28 - Portfolio: 10

    Over the last 20 years, I have developed a wide range skills including development, QA and IT-security. I developed several websites (including shops) and a few client-server-apps using Java and MySQL. I also was trained on a large variety of testing and security tools, they are just too much zu list it here. Every single skill is up to date.

    $33.33 /hr
    64 hours
    4.89
  10. Jason M.

    Jason M.

    Expert Developer, Thought Leader

    United States - Last active: 09/18/2014 - Tests: 7 - Portfolio: 5

    I have been developing cutting edge software for over twenty years. My experience has been centered around ultra high performance embedded systems as well as modern web design and programming. I have been intimately involved in every aspect of the development lifecycle, including: brainstorming, requirements capture, resource management, graphic design, programming, testing, deployment, even sales and marketing. All of my projects are extremely thorough. I am more driven by the quality of my work than I am by the hours I will bill. I am also an entrepreneur and have spent plenty of time on oDesk on the other side of the fence, so I understand exactly what employers are looking for. That is why I am confident I can provide unprecedented value.

    $59.00 /hr
    254 hours
    5.00