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, 697 AJAX projects are completed every quarter on Upwork.

697

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 4.63.

4.63
Last updated: May 1, 2015
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  1. Daniel Z.

    Daniel Z.

    Highly skilled API integrator, PHP (ZF) Coder and Project Manager

    Poland - Last active: 3 days ago - Tests: 7 - Portfolio: 6

    Goal: Project and develop high quality apps for your success. Profile: OOPHP & Zend coding, IT consulting and business analyst, project coordinator and manager, Other skills: Apache, Bind, SSH, bashscripting, Memcached, Github, Solaris, Oracle, MySQL, Radius, AD, expert knowlegde of many *ux and windows systems Advantage: Project and implementation of many web apps. Most of it projected and developed by myself using Zend Framework, Google API (youtube, gdata), social API (twitter, facebook). Some of it integrated with operating systems or AAA software (radius, ldap). Usually Design Patterns were used (like Template Method, Version of Control, DAO, Dependency Injection, Decorator and so on). Some application built upon a structure of web services (XML, REST, JSON), some using jQuery and AJAX. Tools and technologies: Apache, radius, bind, ldap, Zend Framework, XML, SOAP, Linux, Linux daemons, Memcached, Sockets, REST, JSON, Oracle, MSSQL, MySQL, Design patterns, MVC, SVN, BASH, PHPUnit, Xdebug, Unit testing, Google Youtube API, Google Gdata API, Google Maps API, Facebook API, PayU API

    $35.00 /hr
    1,615 hours
    4.98
  2. Karl O.

    Karl O.

    UI/UX Designer and Developer

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

    I'm a digital product designer and web developer from Sweden. I follow the principles of user-centered design to better understand your user and business goals. I possess a wide skill set, ranging from graphic and interaction design, to web and mobile application development. Please visit http://karlo.dunked.com/ to see more of my recent work, and don't hesitate to get in touch to have a chat about how I can help out with your next project!

    $75.00 /hr
    0 hours
    5.00
  3. Mikolaj R.

    Mikolaj R. Agency Contractor

    PHP Developer with Frond-End and JavaScript skills

    Poland - Last active: 12 days ago - Tests: 16 - Portfolio: 18

    I have worked as a PHP developer for about 7 years for now. My experience in working on a wide range of projects allowed me to work with large corporations like Adidas, Reebook and Unilever - that kind of clients are very demanding and expect performance to the highest level. Thanks to that cooperation I know how necessary thing is good communication. I worked in a team of developers as well as on my own, additionally, I have experience as a team leader. Worked on small projects and some bigger ones that took over a year to complete. I am very much familiar with the latest technologies such as: PHP 5x (OOP), MySQL 5x/Postgresql 8+ (usually with ORM if needed), MVC Frameworks, jQuery, Mootools, DHTML, CSS3, HTML5, Youtube/Facebook/Twitter API to integrate projects with social media. All my applications are SEO optimized to play good with google and easy to work with SEO companies.

    Associated with: Polcode

    $32.00 /hr
    2,428 hours
    4.70
  4. Dmitry P.

    Dmitry P.

    Senior Ruby On Rails full stack developer

    Poland - Last active: 15 hours ago - Tests: 1 - Portfolio: 2

    I have perfect 5 star rating at another freelance site (elance.com) as well - http://goo.gl/A9OgE1 I've written my first program when I was 5 years old, for 9 years I'm doing it as my profession. I've started with PHP but for purpose of more productive work switched completely to Ruby On Rails 4 years ago and mastered my RoR skills for dozens of projects since then. I'm not afraid of challenges, very self sustainable and motivated, always deliver on time. My skills are: Program languages: Ruby On Rails, Node.js (for high load backends) Code management: Github / gitlabs Databases: Mysql, postresql, mongoDB Deployment: Heroku, Capistrano, Docker, Debian-based linux distros Frontend: HTML5, CSS3, HAML, LESS, SASS, Twitter Bootstrap Javascript: Deep knowledge of pure JS, 9 years of experience with jQuery, dozens of plugins, can work with Angular.js, backbone.js (but not specialized in) Experience with API: Paypal, Twitter , Facebook , Google, Google Maps, Shopify, Netsuite, Constant Contact etc. Issue tracking and communication systems: Redmine, Github issue tracker, slack, basecamp Here are my latest project built by me: Huge highload online marketplace - http://goo.gl/oElo0L Shopify and constant contact integration - http://goo.gl/xoU02t Site monitoring solutions - http://goo.gl/dKwaej Unique project to stresstest websites - http://goo.gl/cFhrUD

    $45.00 /hr
    1,056 hours
    5.00
  5. Sophy Ung

    Sophy Ung

    Ruby/Rails/JavaScript Developer

    Cambodia - Last active: 2 days 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
    4,928 hours
    5.00
  6. Alex German

    Alex German

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

    Ukraine - Last active: 3 days 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
    8,402 hours
    4.99
  7. Eric S.

    Eric S.

    Senior Web & Mobile Expert

    China - Last active: 1 day ago - Tests: 32 - Portfolio: 22

    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
    10,857 hours
    4.95
  8. Igor Sukhinin

    Igor Sukhinin

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

    Latvia - Last active: 1 month ago - Tests: 9 - Portfolio: 11

    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
  9. Yuriy P.

    Yuriy P.

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

    Russia - Last active: 2 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
    3,376 hours
    4.85
  10. 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
    6,681 hours
    5.00