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. Evgeny S.

    Evgeny S.

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

    Russia - Last active: 2 days 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
    2,237 hours
    5.00
  2. MD. ISMAIL HOSSAIN

    MD. ISMAIL HOSSAIN

    Wordpress Theme & Plugin Expert

    Bangladesh - Last active: 3 days ago - Tests: 11 - Portfolio: 62

    I am 5 Star full-time developer and i promise your satisfaction or money back. Availability: I am available 10-12 hours per day. Also i am available 7 days per week. I promise:- 1) Good Communication 2) Fulltime service 3) Best Quality I am expert Wordpress developer with over 5 years experience on PHP, Wordpress, Joomla, Magento, MVC and OOP. I have great experience on Wordpress Woocommerce, Wordpress Theme Customization and Wordpress Plugin Development. ====== My Wordpress Skills======= Wordpress install and setup, Wordpress Upgrade, Wordpress Web Design, PSD to Wordpress, Adding image slider to Wordpress, Wordpress Ecommerce site, Wordpress theme install and customization, Wordpress plugin install and customization, Wordpress template development, Wordpress custom module development, Wordpress extension development, Wordpress & Facebook integration, Wordpress Optimization, Wordpress Bug Fixes, Wordpress Support and Maintenance, Wordpress & Mysql Bug fix, Wordpress to Wordpress, Wordpress admin customization, Wordpress add function to admin panel, Wordpress plugin development , Wordpress custom post type creation, Wordpress woocommerce site developement, Wordpress custom theme, child theme, ====== My Magento Skills======= Magento extension development, Magento ecommerce design, Magento theme customization, and so on. ====== My Joomla Skills======= joomla extension development, joomla module and joomla plugin dev, joomla template customization, joomla upgrade, jomsocial, joomla lovefactory component configuration.

    Groups: BigCommerce

    $33.33 /hr
    1,241 hours
    4.99
  3. Jovan C.

    Jovan C.

    Quality web development and software engineering

    Montenegro - Last active: 15 hours ago - Tests: 8 - Portfolio: 4

    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
    986 hours
    4.87
  4. Andrey E.

    Andrey E.

    Web Scraping Expert and PHP Web Developer

    Russia - Last active: 1 day ago - Tests: 7 - Portfolio: 12

    I'm web scraping expert/full stack developer with 7+ years of commercial experience. I'm good problem solver holding M.S. in maths and computer science. Today I'm offering webscraping/php/javascript services as a freelancer. My main skills: • Web scraping, parsing, automation, data processing • Simplehtmldom, Goutte, Symfony Browser Kit, Cheerio, CasperJS, Regular Expressions, Xpath • PHP, JavaScript, Java, NodeJS, PhantomJS, LUA • HTML5, CSS3, LESS, Bootstrap Framework • MySQL, MongoDB, Redis • Memcached, ZeroMQ, ReactPHP • SocketIO, Websockets • REST, SOAP, XML, JSON • Matlab, Wolfram Mathematica • Jquery, KnockoutJS, BackboneJS, RequireJS • Prestashop, OpenCart • Experience working with APIs: Ebay, Spotify, Amazon AWS, Amazon MWS, Flickr, Facebook Graph, Vk.com, GitHub, Instagram and several others • Git, SVN • Apache, Nginx, Curl • Amazon AWS • Linux, Vagrant • Understanding of OOP principles and software design patterns • Teamwork experience My github account is https://github.com/256cats My blog: http://256cats.com/ Over the years I’ve developed a lot of web scrapers of different complexity mostly using PHP (simplehtmldom, browserkit) and NodeJS/PhantomJS (casperjs). Some were simple regex-based and others were complex distributed systems with multiple proxies and Amazon AWS support. Also I developed a wide range of websites using PHP, HTML, JavaScript, CSS and MySQL including several e-commerce websites (+ Prestashop, Opencart). I built sites both from scratch and using frameworks, developed custom modules and extended existing ones for my clients. I have experience in PHP/MySQL performance tuning. Last two years I was working as MMO game (Clash of Clans/Heroes of Might and Magic-like mechanics) logic/backend developer. I’ve implemented distributed message queues, realtime leaderboards with Redis, Mysql, PHP. Developed battle-related algorithms (game unit classes, attack/defend, shortest path, quadtree). Then I’ve done some frontend development, e.g. – developed embeddable javascript classifieds widget and fitness/health single page web application with realtime updates/notifications (HTML, CSS, JavaScript, Jquery, Knockout.js, MomentJS, REST, AJAX, Socket.io).

    Groups: Coding Champs

    $39.90 /hr
    150 hours
    4.98
  5. Aleksey S.

    Aleksey S.

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

    Russia - Last active: 1 day 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
    14,959 hours
    4.59
  6. Maksim K.

    Maksim K.

    Web and Desktop Software Developer

    Russia - Last active: 15 hours ago - Tests: 3 - Portfolio: 5

    PERSONAL SUMMARY A highly organised and versatile IT professional with a proven track record of using excellent engineering practice to produce software for profitable products and solutions. Starting from 2002 I have been developing numerous Web based applications, Desktop applications and Mobile applications - possessing a long record of achieving the desired outcomes of the projects be them just small applications or huge web systems. I am able to perform full software development life cycle activates. AREAS OF EXPERTISE PROFESSIONAL: Web Development / Programming □ Project Management □ Database and Query Design, Optimization, Synchronization Server Instance Configuration and Data control □ Multithreading and Asynchronous Applications □ Networking, Streams & Sockets □ UI/UX and components development, skinning □ Web Systems Administration (Apache, FreeBSD, Windows, MySQL, PHP, Subversion) □ Organic SEO (Search Engine Optimization) □ Valid code with cross-platform/browser compatibility SKILLS: Technologies: □ OOP □ MVC □ Spatial Extensions (GIS Geometry) PHP: □ Zend Framework □ PEAR □ Smarty Template Engine □ Doctrine, Propel, ADOdb □ Snoopy □ Memcached / Redis □ REST, XML-RPC, JSON-RPC JavaScript / CSS / CSS3 / HTML / HTML5 / XUL: □ DOM □ JSON □ AJAX □ XML / XSL (XPATH, XSLT transformations) □ AngularJS / AngularUI □ Bootstrap □ jQuery □ Modernizr □ Underscore JS □ Lo-Dash JS □ D3 JS □ YUI 2 □ ActiveWidgets □ Moment JS □ Sass, Compass □ SQL.js ActionScript / AIR / Flex: □ as3corelib □ greensock □ as3-utils □ Box2D, Starling □ As3Crypto □ as3 GATracker Databases: □ ANSI SQL □ MySQL □ SQLite □ SQL Server □ NoSQL C# / C++ API: □ Facebook API, VK API, Twitter API, LinkedIn API □ KRPano □ Google Maps API DEVELOPMENT ENVIRONMENTS AND TOOLS: □ Sublime Text 2 □ Zend Studio □ FlashDevelop / Adobe Flash Builder / Adobe Flash Professiona □ Microsoft Visual Studio □ EMS MySQL / MySQL Workbench / SQL Server / SQLiteStudio □ Grunt JS □ SVN / GIT / WinMerge □ Putty □ Firefox (FireBug) / Chrome / IE (IETest) □ CuteFTP / GoodSync □ Adobe Fireworks / Adobe Photoshop / Adobe Illustrator PERSONAL SKILLS □ Able to work individually, as part of a co-located team or as part of a distributed global team. □ Acting as a role model for junior IT staff. □ Strong problem-solving and analytical skills. □ Self motivated and a quick learner. □ Ability to anticipate problems and develop effective solutions. □ Able to work under pressure and to tight deadlines.

    $44.44 /hr
    2,329 hours
    4.97
  7. 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
    8,595 hours
    4.90
  8. Artur Stolear

    Artur Stolear

    Browser Extensions, Chrome Extensions, Firefox Addons, JavaScript

    Moldova - Last active: 15 hours ago - Tests: 8

    Front-end developer since 2008, very like to write JavaScript and rich HTML5 applications. My current focus is on Web Apps and escpecially Mobile Web Apps. On my work in Professionali.ru I developed our own JavaScript framework for easier team development. Lot of things was done about performance optimizations and complexity structure of our site which now became Application. Now I am looking for new expirience and interesting projects. * JavaScript (Front-end) lead and JavaScript architechture developer at Professionali.ru (Russian analog of LinkedIn) since February 2012. * Speaker at jQuery Russia conference in October 2013.

    $55.56 /hr
    239 hours
    5.00
  9. Karl O.

    Karl O.

    UI/UX Designer and Developer

    Sweden - Last active: 27 days ago - Tests: 1 - Portfolio: 12

    I'm a UI/UX designer that develop web and mobile applications. I follow a user centered workflow to create simple, useful and intuitive digital products. I possess a wide skill set, ranging from graphic and interaction design, to web and mobile application development. Let me know what challenges you have at hand! Please visit http://karlo.dunked.com/ to see more of my recent work. I currently work part-time with UI and UX at Ztory, a Swedish startup that offers a magazine service similar to what Spotify does for music, but I take on freelance assignments.

    $75.00 /hr
    0 hours
    5.00
  10. Victor G.

    Victor G. Agency Contractor

    C#/VB.NET Expert / Database Architect / Team Manager / CTO

    Russia - Last active: 6 days ago - Tests: 17 - Portfolio: 4

    Seeking for C#/VB.NET (1.1-4.0, Win/Web) / Database jobs. Having 4+ years experience with .NET Framework / Relational Databases. Experience with LINQ, MVC, MSSQL, Telerik, Infragistics, SVN and many more components, tools and technologies. Worked for 6 years in C++/MFC/Win32 since 2000. Then, started to work with .NET (C#/VB/ASP) and Databases (MySQL, MSSQL) last years. Incoding Software CTO and Team Lead.

    Associated with: Incoding Software

    $75.00 /hr
    8,890 hours
    4.97