AJAX Developers & Consultants

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Hire a freelance AJAX developer to add interactive functionality and flexibility to your website. Search our database of affordable Ajax experts to get your project started today.

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. Christopher James

    Christopher James

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

    United States - Last active: 6 days 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
    6,809 hours
    5.00
  2. Anton T.

    Anton T.

    MODx Developer / PHP / MySQL / JS / Linux

    Russia - Last active: 7 days ago - Tests: 9 - Portfolio: 22

    MODx Revo/Evo developer. Over the last 9 years of working in web developing industry. I have experienced as team working (including team leader position) as well as independent freelancer. Now scope of my professional interests range from light-weight web sites to highload portals and startups. In recent years I'm developing sites mostly based on MODx CMS/CMF, but i also worked with other frameworks: Zend Framework, osCommerce, UMI.CMS, Bitrix, WordPress, Joomla and about 3-5 self-made nameless CMS. Also I have strong expirience in integration of 3rd party applications, payment systems API (Card gateways, PayPal, SMS gateways, WebMoney, Yandex.Money, RBK.Money, Money[at]Mail.ru, Qiwi), websites optimization (according to GTmetrix and Google Page Speed Test). In addition, I possess high-quality 2 years expertise in software and web testing. At your service!

    $33.33 /hr
    1,253 hours
    4.98
  3. Jovan C.

    Jovan C.

    Quality web development and software engineering

    Montenegro - Last active: 20 hours ago - Tests: 8 - Portfolio: 6

    I am an experienced PHP developer with a degree in engineering/telecommunications. Apart from PHP, I have expert knowledge in MySQL and excellent knowledge in Javascript/jQuery, HTML and CSS. I am well versed in MVC software architecture and several PHP frameworks, as well as WebSocket technology. I develop scalable, secure, object-oriented web applications with efficient database structures. I also have experience in managing projects, hiring and overseeing staff. My English is excellent and I can provide updates as often as needed when I work. Communication will never be a problem.

    $55.56 /hr
    1,200 hours
    4.87
  4. Marcin M.

    Marcin M.

    Web Data Extraction and Regexp Expert

    Canada - Last active: 4 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
    2,529 hours
    5.00
  5. Chalitha Wickramathilaka

    Chalitha Wickramathilaka

    Senior Backend Programmer / Tech Lead

    Sri Lanka - Last active: 20 hours ago - Tests: 2 - Portfolio: 15

    From almost 12 years I have been working with php based web applications. MVC, and Zend Framework 1/2 development environments. I have the same experience with java scripts /jQuery/extjs frameworks. I have more than 7 yrs experience on load balancing . Clustering , and replication over debian, centos and redhat systems. I use Oracle and mysql databases on most of my projects. As a code collaboration tool I am using Gforge with svn/git for my projects. also I have strong experience with iptv application such as tvguides, epg, music applications etc etc. I have been working on high loaded websites, application databases for my work. I have strong knowledge of optimizing web applications smooth run on a very high load. Also I have experience with hardware Visualization on VMware boxes. I have additional experience in ETL Jobs / Mysql clustering / Piranha / php heavy load balancing / caching nodes. Android / FB apps/ REDIS/VMware ESX configuration

    $33.33 /hr
    4,768 hours
    5.00
  6. Alexandr Mankov

    Alexandr Mankov

    Web Software Engineer (LAMP, AJAX, etc)

    Russia - Last active: 8 days ago - Tests: 6 - Portfolio: 2

    Looking for a position as a sr. developer / project manager.I have been developing software for web applications for over 10 years, I am well versed in PHP, Perl, HTML/CSS, JavaScript and Ajax. Also i am an expert in related areas as UI development, so I do not require constant supervision since I'm able to improvise in case the specs are incomplete and if I have permission to do so. I am working very fast, hiring me you get not only top quality, but reasonable price too.I have some ready-to-use functions\classes which comes with me from project to project, which allow me make custom code to easy handle high-load sites and don't require wasting time for routine tasks same time. I am online very often, including holidays, you can be sure you will be able to reach me within one day no matter what your timezone is.

    $66.67 /hr
    2,477 hours
    4.89
  7. Marcin Bogus

    Marcin Bogus

    Software Developer

    Poland - Last active: 22 days ago - Tests: 1

    Over the last 3 years, I have developed a wide range of websites using Html/Html5, CSS, PHP5, JS and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business.

    $48.89 /hr
    428 hours
    5.00
  8. Fernando Barrocal

    Fernando Barrocal

    Software Architect, Project Manager and Web Systems Senior Developer

    Brazil - Last active: 20 hours ago - Tests: 5 - Portfolio: 5

    I am looking for opportunities to work on areas of my expertise, which includes building internet systems since the planning to its deployment, going through server installation, researching the best technologies the system development, webpages layout and design , focusing on the client's needs. I have a strong background working with servers maintenance since 1998, in several areas, like network analisys and security, email , file, network and application servers as well web infrastructure like LAMP. My experience includes maintence and security of networks with firewalls, anti-virus and anti-spyware solutions. As Project Manager I am able to create web systems in several languages using different frameworks like Struts in Java, Zend, Zend 2 and CakePHP for PHP and .NET C#. I have a large experience in MVC Architectural Patterns, which, in synergy with my experience working on distributed projects, gives me experience needed to work along other developers and designers as needed. I am a highly organized developer and look forward to have a system tracking tasks and jobs that are needed to be done for long term works. Among all high level frameworks I use I have experience working with several other technologies like SOAP, REST, Payment Gateways, Boostraps (twitter, node) Feel free to contact me with any question.

    $35.00 /hr
    3,353 hours
    4.89
  9. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 20 hours ago - Tests: 5 - Portfolio: 2

    I have strong background in UNIX/Linux software development, Master's Degree in Computer Science. I worked on Enterprise high-load distributed hosting automation systems as a Team Leader (3.5 years in SWsoft, Inc., now called Parallels). For the last 6 years I'm running my own small software development business in Russia with primary focus on Python/Django apps. Not pure Web but often involving integration with hardware (Proximity Cards, Sensor Screens) or external systems like Payment Processing, SMS Gateways, GABRIEL (Airline Reservation System), etc. I can take an idea and turn it into a working business, through all the intermediate stages. Also I have experience of investing my own funds in my projects, so I feel the difference between "perfect code" in a month and "good enough" code that increases the revenue right now. Nevertheless, my code is very good: no copy-paste, always written with performance, flexibility and security in mind, etc. On oDesk I'm looking for (and actually find :) interesting projects with a sight on long-term fruitful cooperation. I'm also open to smaller activities (e.g., consulting) where my knowledge can be helpful.

    Groups: Coding Champs

    $40.00 /hr
    1,596 hours
    5.00
  10. Andrey Semenischev

    Andrey Semenischev

    Expert in PHP coding and MySQL optimisation

    Russia - Last active: 1 day ago - Tests: 14

    I'm WEB programmer. I have more than 12 years expierence in site-creation field. I work with PHP, Smarty, MySQL, JS, HTML, Linux adminstration (httpd, mysqld, iptables etc.). I have developed and changed a wide range of websites and backend systems. I also have a rich experience in AJAX, OOP, software testing. Feel free to work.

    $38.89 /hr
    1,635 hours
    5.00