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.

Browse AJAX job posts for project examples or post your job on Upwork for free!

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: June 1, 2015
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  1. Radostin D.

    Radostin D.

    You have a problem? - I am the solution :)

    United Kingdom - Last active: 1 day ago - Tests: 8

    - PHP, Mysql, Jquery, Jquery Mobile, CSS - Wordpress - plugins, customization, themes, custom coding - Facebook Development, Fan pages/applications - Working with APIs, Facebook API, Twitter API etc. - E-commerce integration with online payment processors (Paypal, Moneybookers, Liberty Reserve, Authorize.net etc.) - Online marketing, affiliate programs, PPC - Web automation, web scraping Please don't hesitate to contact me and discuss different projects even if the requirements are not listed at my personal profile. I am open to all different kind of projects. Waiting for your projects :)

    Groups: Application Developers Alliance

    $33.33 /hr
    149 hours
    4.93
  2. Eric Bouchard

    Eric Bouchard

    Senior Software Engineer

    Canada - Last active: 2 months ago - Tests: 11 - Portfolio: 3

    I have 13 years of experience in IT. 7 years as a Web Applications Analyst and Developer for a major Canadian Bank and 4 years as a software engineer/architect for an international software company. I led multiple projects of small/medium size. Also 3 years of experience on the bank core systems on IBM MVS with COBOL. I personally developped as a personal projet www.sffmeta.com. I also developed the www.scanthing.com Android OCR application. I have a lot of experience with communicating with systems end-users. I can speak both english and french.

    $60.00 /hr
    6,817 hours
    5.00
  3. Alex German

    Alex German

    Web Programmer. PHP/MySql, Ajax, HTML5/CSS3, Wordpress CMS

    Ukraine - Last active: 15 hours ago - Tests: 8 - Portfolio: 7

    I am currently looking for the full time/part time PHP/MySQL programming job for a company or individual and would like to get committed for a long term collaboration with a reliable service buyer. Experienced in the following areas: - PHP - MySQL - Ajax - Java Script - XHTML/CSS Frameworks: - Symfony - YII - Kohana - CodeIgniter CMS: Wordpress, Prestashop Also: Linux, Apache, MVC, SVN, GIT, Mantis/Jira/Redmine

    $38.89 /hr
    8,453 hours
    4.99
  4. Sophy Ung

    Sophy Ung

    Ruby/Rails/JavaScript Developer

    Cambodia - Last active: 15 hours ago - Tests: 2 - Portfolio: 7

    I am among the top 1% of freelancers (https://twitter.com/odesk/status/364622388165492736) and a verified web developer on oDesk. I have more than 7 years of experience in software engineering, particularly web development. Over the last 6 years I have developed a variety of business applications using Ruby, Rails, JavaScript, PostgreSQL, MySQL, MongoDB, Redis, Amazon EC2 and Heroku. I am interested in building quality software. I do not write code that just work, but also well designed, easy to understand, maintain and extend in the future by using test-driven development (TDD).

    $100.00 /hr
    4,982 hours
    5.00
  5. Yuriy P.

    Yuriy P.

    Expert web-developer PHP (ZCE) / Python JavaScript / HTML / CSS

    Russia - Last active: 7 days ago - Tests: 9 - Portfolio: 7

    Hi, I developed web applications for last 4 years using PHP, MySQL, xHTML, CSS, JS (native and with framework). I worked on absolutely new projects and maintained existed ones. I also have some experience in SQL, Ajax, OOP, JSON, XML and worked with different php frameworks (I prefer Kohana to build websites from the ground up).I'm seeking work to create awesome web applications. If you have some work for me - let's discuss collaboration.

    Groups: Zend Certified Engineers

    $33.00 /hr
    3,382 hours
    4.85
  6. Eric S.

    Eric S.

    Senior Web & Mobile Expert

    China - Last active: 15 hours ago - Tests: 32 - Portfolio: 25

    Web Master with 8 years of experience in designing, developing, improving and maintenance. For the last 2 years, I worked on 3 projects as project manager & developer and led them to success. Always trying to complete project perfectly by suggesting innovative solutions. *** Areas of Expertise *** - Advanced programming and designing skills - Project Management - Risk Management and solving skills - Teamwork - Website Optimization, SEO *** Technical Skills *** PHP, Ruby, NodeJS, HTML5, CSS2/3, Javascript, Java, MySQL, Oracle, PostgreSQL, MongoDB, Wordpress, Magento, Ruby on Rails, Zend, Joomla, Drupal, YII, Laravel, JQuery, JQuery UI, VelocityJS, AngularJS, Greensock, ScrollMagic Bootstrap, SCSS, LESS, Responsive Design, Parallex Design, Redmine, GetFlow, Pivotal, Git, SVN, Github, General skill in Amazon Web Services, CPanel Management, Mojohost Management

    Groups: BigCommerce, BoonEx...

    $50.00 /hr
    10,890 hours
    4.95
  7. Igor Sukhinin

    Igor Sukhinin

    PHP, MySQL, xHTML, CSS, AJAX, MODX, Yii and CodeIgniter frameworks

    Latvia - Last active: 1 month ago - Tests: 9 - Portfolio: 13

    I have developed a lot of websites and web projects with different and complex functionality as a lead programmer / systems engineer / project manager. = Why choose me? = - More than 10 years of experience in IT/programming sphere; - Strong attention to the project details; - Work strictly according to the schedule and your requirements; - Good communication skills and deep understanding the client's/end user's needs; - Flexibility and ability to provide you valuable advices for your application/web project. = Technologies = - Expert in PHP, advanced in JAVA/Android - PHP Frameworks: Yii, CodeIgniter, Symfony, Slim and others - DBs: MySQL / MSSQL and others relational/non-relational DBs - Javascript: plain / jQuery - xHMTL / HTML5 - CSS2 / CSS3 = P.S. = I'm one of the leading members of MODX CMS community and MODX Ambassador in Latvia. I've also a good understanding and some experience in JAVA and especially in Android Mobile Development.

    $39.94 /hr
    14 hours
    4.75
  8. Richard Windsor

    Richard Windsor

    Highly qualified and experienced UK based software developer

    United Kingdom - Last active: 1 day ago - Tests: 6 - Portfolio: 5

    I've been developing software as an employee and as a freelancer for over 15 years for a broad variety of applications from hardware drivers to high level multimedia systems. I've also been lucky enough to work in an industry that combines coding with media design so I am able to manage all aspects of a given job. I'm currently working with companies to build internet and intranet applications that improve their workflow efficiency. I develop bespoke applications from the ground up which allow the client to work as they desire rather than them having to conform to off the shelf software. My prefered development languages are PHP, XHTML/CSS, and SQL, although I'm also proficient in Javascript/AJAX, C++, and all forms of less savory HTML. On the media side, I am proficient at video editing, 3D modelling, animation, and image manipulation using a variety of software. I have worked with TV and film companies as well as being a TV studio manager responsible for all aspects of programme production.

    $54.99 /hr
    2,079 hours
    4.98
  9. Christopher James

    Christopher James

    PHP Web App Developer: Any Framework, APIs and UI. 15+ years (USA)

    United States - Last active: 1 day ago - Tests: 6 - Portfolio: 12

    Since 1998 I have developed dozens of web applications focusing on a wide-range of industries including custom search engines, affiliate marketing, real estate solutions and worker safety. As an autodidact, I pride myself on learning new technologies and continually improving my skill-set. As a freelancer, I believe in professionalism, clean code and representing my craft to the highest degree possible. On the server-side, Laravel is my current PHP framework of choice, although I am comfortable working with Zend, CodeIgniter, Cake and Yii. For the database layer, I have 14 years of experience with MySQL. On the client-side, I prefer jQuery, Backbone and Twitter Bootstrap. Although I am not a graphic designer, I know my way around the Adobe software suite. I write standard compliant HTML5 and CSS3. I have an eye for useable, clean and obvious functionality. I have experience with many APIs, including Amazon, Box.net, Infusionsoft, Facebook, Twitter, PayPal, eWay, Authorize.net and Google. I can write APIs from scratch and give your application a RESTful interface. I am seeking opportunities to build custom web applications from the ground up or taking an existing code base and improving upon it.

    $110.00 /hr
    6,721 hours
    5.00
  10. Alexei Shulga

    Alexei Shulga

    Senior back-end engineer, Zend Framework developer, team-lead

    Russia - Last active: 1 day ago - Tests: 10 - Portfolio: 8

    TOP 25 oDesk Web developer - awarded several times! Successfully assembled and managed distributed teams. Are your freelancers taking a piss? I reviewed, fired and forced bad coders to return money and I staff professional people on oDesk. Certifications: Zend Certified PHP5 Engineer, Zend Certified PHP 5.3 Engineer, Zend Framework Certified Engineer. Oracle Certified MySQL developer. Unbeatable 14+ years of experience in LAMP environment. Experienced with high-load, high-trafficked sites with data/code distributed over several data centres. Worked with the best companies onsite (Germany, Australia, Thailand, Malaysia) and remotely (all over the world). Proven expertise in the following technologies/platforms/skills: PHP 5, outstanding OOP, OOA and OOD Python 2.5+, Django, Flask, etc. JavaScript (prefer jQuery, but can use MooTools and DoJo) versatile in XML solutions (along with XSLT and XPath) HTML (XHTML, W3C compliance, strict mode, CSS) MySQL 5, PostgreSQL, database optimization NoSQL (Redis, MongoDB, etc) AMPQ (RabbitMQ, etc) GIT (SVN, CVS, but really prefer GIT) GAE (Google App Engine: Python) APIs (various Google APIs, Facebook, Mailchimp, Twitter and many more) e-commerce: (osCommerce, Magento, digishop, xcart, zencart, etc) project tracking software (Assembla, Springloops, Mantis, Beanstalk and others) lots of other skills, including but not limited to unit, functional and regression testing, agile/lean methodology, team leading, security audit and more. Unsurpassed skills in fixing bad 'indian' code and salvaging projects by doing step-by-step full code refactoring without breaking live mode. Expect professional attitude, clean code, solutions that you won't need to fix after the project is finished, lots of ideas regarding your site/service, security audit, etc. For fulltime offers (more than 6+ months) there are nice options available: discount (up to 5$ per hour), 24hr support in case of emergencies (response time from 0 mins to 2 hrs). And the last, but not least, you get what you're paying for. If you prefer to use the cheapest dentist in another country to established and known stomatologist, then please do not contact me. Thank you.

    Groups: MailChimp Experts Group, Pinnacle Cart eCommerce Application...

    $61.11 /hr
    7,525 hours
    4.99