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. Ovi I.

    Ovi I.

    Highly Experienced Developer

    Austria - Last active: 4 days ago - Tests: 29 - Portfolio: 6

    > WHO IS THIS GUY? < 27 years old passionate developer, with more than 8 years experience in web development. > WHAT CAN I GET FROM HIM? < You will always get high quality work from me if we work together, no excuses. - consultancy - coding frontend UI - developing custom backend - complete solutions based on Drupal, Wordpress or custom platform - web apps (AngularJS) - fixing bugs - performance optimization - server administration (LAMP, Amazon Web Services) - all sort of scripts (web scrapers, data analysis/conversion etc.) - other custom coding (I accept challenges!) > WHY DOES HE DO THIS? < I am passionate about what I do and I feel this is helping me learn and grasp the new trends in the web industry much faster compared to others that just 'do their job'. I take pride in what I do and don't accept compromises when it comes to high quality work. > NEED MORE INFO! < Feel free to contact me regarding any question you might have. I usually respond within 24 hours or less.

    $44.44 /hr
    858 hours
    4.99
  2. Anton T.

    Anton T.

    MODx Developer / PHP / MySQL / JS / Linux

    Russia - Last active: 1 day 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!

    Groups: Upwork Verified Web Developers

    $33.33 /hr
    1,251 hours
    4.98
  3. Marcin Bogus

    Marcin Bogus

    Software Developer

    Poland - Last active: 1 month 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
    418 hours
    5.00
  4. Jovan C.

    Jovan C.

    Quality web development and software engineering

    Montenegro - Last active: 1 day 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
    988 hours
    4.87
  5. Marcin M.

    Marcin M.

    Web Data Extraction and Regexp Expert

    Canada - Last active: 3 days ago - Tests: 2

    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
    2,422 hours
    5.00
  6. Christopher James

    Christopher James

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

    United States - Last active: 2 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
    6,629 hours
    5.00
  7. 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
    2,052 hours
    4.94
  8. Andrey E.

    Andrey E.

    Web Scraping Expert and PHP Web Developer

    Russia - Last active: 2 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
    150 hours
    4.98
  9. Edvin R.

    Edvin R.

    Web Developer

    Hungary - Last active: 1 day ago - Tests: 5 - Portfolio: 2

    Front-end / Back-end web application developer with over 9 years of experience and Bachelor's degree in Computer Engineering. I'm expert in creating user interfaces using jQuery and Twitter Bootstrap. Always interested in new technologies like HTML5, Node.js, Zend Framework. I'm also experienced in administrating Linux Systems (Debian, Ubuntu). Proud creator of a new lightweight PHP Framework called wFramework. I accept all kinds of PHP, MySQL, HTML and JavaScript coding. Summary of qualifications: * Front- and Back-end web application development * Database planning and optimizing * Linux server administration (SSH) * Experience with Facebook, Google, Paypal, etc... APIs * Creating Desktop, Mobile and Web applications from scratch

    $35.56 /hr
    2,909 hours
    5.00
  10. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 1 day ago - Tests: 5 - Portfolio: 1

    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
    1,521 hours
    5.00