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, 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. 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
    6,707 hours
    5.00
  2. Anton T.

    Anton T.

    MODx Developer / PHP / MySQL / JS / Linux

    Russia - Last active: 16 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: 1 day 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
    1,065 hours
    4.87
  4. 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
    2,469 hours
    5.00
  5. Alexey Palamar

    Alexey Palamar

    PHP5, MySQL, JavaScript, AJAX, Yii/LiteCommerce Developer

    Ukraine - Last active: 1 day ago - Tests: 9 - Portfolio: 3

    Core skills: PHP5, MySQL, JavaScript, AJAX. Experience in cms: Shopware, Interspire Shopping Cart, Opencart, SkaDate, X-Cart, Zen Cart, aMember. Services: Affilinet, Facebook, Icecat, Google Analytics, LiquidPixels (LiquiFire and Liquid Pixels), Skycheck, Alphashirt, Sendy, Mailchimp, Shareasale, Addshoppers, Payeer. Frameworks: LiteCommerce, Yii. Additional points: Responsibility for the completed tasks to the client. Immediate starting of the work. Full concentration on job.

    $33.33 /hr
    2,065 hours
    4.94
  6. Marius Cristea

    Marius Cristea

    Full stack web developer

    Romania - Last active: 2 days ago - Tests: 2 - Portfolio: 1

    I am a full stack web development engineer, fluent in PHP, MySQL, jQuery, AJAX with excellent debug and troubleshooting skills, working for clients and companies for almost 3 years. During this time i have built various applications from scratch but i've also developed new features with existing codebases. I'm very familiar with PHP frameworks like CodeIgniter, Zend Framework, as well as Play Framework (Java) and Django(Python). I'm also having experience in building browser extensions, having more than 20 published in the chrome webstore, developing RESTful web services along with using APIs from Twitter, Facebook, Google and more.

    $45.00 /hr
    391 hours
    4.96
  7. Andrey E.

    Andrey E.

    Web Scraping Expert and PHP Web Developer

    Russia - Last active: 5 days 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
    156 hours
    4.98
  8. Alexandr Mankov

    Alexandr Mankov

    Web Software Engineer (LAMP, AJAX, etc)

    Russia - Last active: 12 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
    2,465 hours
    4.89
  9. Marcin Bogus

    Marcin Bogus

    Software Developer

    Poland - Last active: 2 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
    426 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
    1,575 hours
    5.00