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: July 1, 2015
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  1. Sophy Ung

    Sophy Ung

    Ruby/Rails/JavaScript Developer

    Cambodia - Last active: 1 day 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
    5,168 hours
    5.00
  2. Alex German

    Alex German

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

    Ukraine - Last active: 1 day 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
    8,625 hours
    4.99
  3. 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
    2,141 hours
    4.98
  4. Oscar Diaz

    Oscar Diaz

    CakePHP Developer

    Colombia - Last active: 1 day ago - Tests: 4

    Within my professional career, the last 4 years have been dedicated specifically to focusing and improving my skills on building reusable, efficient, and attractive tools in CakePHP. Through this process, I have attained knowledge vital to understanding CakePHP's most essential functionalities. This knowledge has allowed me to become well versed in the dialogue between JQuery and CakePHP. This, then, has given me the skills to build helpers and components that when applied to your needs, can become the voice that takes form as your ideal problem solver Why? Because I will listen to you. I will ask questions. I will understand what you need and I will provide you with a clean and efficient code.

    $44.44 /hr
    3,484 hours
    5.00
  5. Anton T.

    Anton T.

    MODx Developer / PHP / MySQL / JS / Linux

    Russia - Last active: 9 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
  6. Dorin Duminica

    Dorin Duminica

    Software Developer

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

    Over the past 6+ years as a Delphi developer I have worked on database, desktop and web applications. I'm proficient in Delphi(version. 7 to 2010) and PostgreSQL. I have a very good analytical thinking and elegant taste for user interface. I also have experience with RTL, VCL(shipped, DevExpress, TMS), OOP, SQL. I'm constantly doing my best to improve my skills and learn new technologies.

    $38.89 /hr
    8,789 hours
    4.90
  7. Eugene Naydenov

    Eugene Naydenov

    Expert Python and JavaScript Engineer

    Ukraine - Last active: 13 days ago - Tests: 10 - Portfolio: 4

    Expert programmer, Scrum master, team leader. Looking for long term project on position of Senior/Lead software engineer. Preferred technologies: Python and JavaScript. I have over 5 years of experience in Python, Ruby, PHP, JavaScript, C/C++, C# and .NET (Windows Forms, WPF, WCF, ASP .NET), Java development. I also have a wide experience in the following areas: AJAX, SPA, SQL, OOP and OOD. I have skills of working with NoSQL and SQL-based databases such as MongoDB, Redis, MySQL, MS SQL Server, Oracle, FireBird, PostgreSQL, etc. Have good experience of writing the Node.js applications. Proficient in working with cloud solutions such as AWS. Past 3 years I've been working primary in a web-development area on position of lead software engineer with responsibilities of * Project and team management * Web application development * Testing of web application and its components * Reliability, security and performance of the server and the application You can find my CV in this document: https://docs.google.com/document/d/1lYhvx_Ugo1YPPquT8gTHqDx0ebxYZYOZ-GEQX8Nyepw/edit?usp=sharing

    $45.00 /hr
    6,703 hours
    4.98
  8. Evgeny S.

    Evgeny S.

    AJAX, C++, Python, C#, Client-Server

    Russia - Last active: 1 day ago - Tests: 4 - Portfolio: 1

    I am independent C++/Python/C#/Java developer and I am looking for the opportunity to design and build a system from the ground up for you. I have experience with following technologies: - C++, Python, JavaScript, C#, Java, Scala - Nginx, Gunicorn, Gevent, Django, Flask, jQuery, Twitter Bootstrap, Apache. - MS SQL, DynamoDb, Amazon SDB, MySQL, Redis, SQLite, NoSQL. - Linux, Amazon EC2, SQS, SNS, S3. - Win32 API, Android, NDK, GTK, HTML5, WinForms, MFC, VCL - Git, SVN, Mercurial. I'm also eager to extend my experience in cutting edge technologies and programming languages like Rust, Golang, Erlang, Haskell...

    $50.00 /hr
    2,314 hours
    5.00
  9. 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
    2,538 hours
    5.00
  10. Aleksey S.

    Aleksey S.

    C++/C#/.NET/web developer, algorithms/financial/math expert

    Russia - Last active: 12 days ago - Tests: 9 - Portfolio: 12

    I'm a software/web expert developer/architect with 10+ years of experience, including: - software development: .NET, C#, VB, C/C++ (MFC, STL, ATL, COM, GDI/GDI+, OpenGL, DirectX), - web development: both reach front-end and complicated business logic, ASP.NET/C#/VB/LINQ, HTML/CSS(tableless design)/JavaScript/AJAX/jQuery/ExtJS, SilverLight, PHP/MySQL, Flash/ActionScript, - financial software development: real-time algoritmic trading, historical data processing, stocks/indexes/bonds/derivative instruments/complex contracts/etc, integration to financial market broker's APIs: NinjaTrader, Interactive Brokers, CQG, etc, - math-intensive projects: complicated algorithms, reverse engineering, scientific research, Artificial Intelligence (AI) based methods. My objective is to provide high-quality services in the IT area. I'm self-motivated to do more than just simply do my job: I pay attention to customer and end-client needs to follow it better, try to predict future possible difficulties in advance and avoid them, able to make suggestions to improve project workflow and functionality, able to manage team and assure source code quality, able to work under different conditions including strong time and budget constraints. Regards, Aleksey.

    $33.33 /hr
    12,504 hours
    4.59