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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, 631 AJAX projects are completed every quarter on Upwork.

631

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 4.66.

4.66
Last updated: July 1, 2015
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  1. Arvin Kent Lazaga

    Arvin Kent Lazaga Agency Contractor

    Data Entry Specialist, Web Researcher, PHP Programmer

    Philippines - Last active: 6 hours ago - Tests: 13 - Portfolio: 4

    I am a reliable, efficient, dedicated, and enthusiastic person. I can work under pressure and can deliver projects on time and in just 2 years of experience in website development, I already had developed websites and web-based systems from scratch that follows the best practices and good design concepts in website development using the following programming languages, design tools, and database tools: 1. HTML5 2. CSS 3. Twitter Bootstrap 4. JavaScript 5. JQuery 6. PHP 7. AJAX 8. MySQL 9. PDO 10. phpMyAdmin I also had good experience in object oriented programming in PHP and other areas like email handling, web research, data entry, data mining, lead generation, query optimization, code optimization, and software testing.

    Associated with: Adroit Techx

    $10.00 /hr
    882 hours
    5.00
  2. 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
    5,337 hours
    5.00
  3. John B.

    John B.

    Microsoft Certified | Senior Developer | Team Leader

    Australia - Last active: 7 days ago - Tests: 9 - Portfolio: 3

    Over the last 15 years I have continued to develop my career, skillset, knowledge and experience. The last couple of years, upwork has introducted me to a great number of great people and projects. This has been right across the board, from a medical scheduling database (written in VB), to creating and maintaining a 3 million hits /day infrastructure (PHP, MySQL), to data scrapping and manipulation (PHP, import.io). I would like to continue to be exposed to new and different challenges, that will further develop my skills and career. I also really enjoy making new contacts on the upwork network. I look forward to the many varied opportunities and roles that upwork offers.

    $44.44 /hr
    2,592 hours
    4.92
  4. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 3 days 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
    1,610 hours
    5.00
  5. Alexandr Mankov

    Alexandr Mankov

    Web Software Engineer (LAMP, AJAX, etc)

    Russia - Last active: 9 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
    2,485 hours
    4.89
  6. Jeeni Patel

    Jeeni Patel

    Lead QA Engineer/Expert Software Tester-Web App/MAC/Mobile-AgileExpert

    India - Last active: 1 day ago - Tests: 3 - Portfolio: 23

    "Try to improve PERFECTION and unveil the QUALITY by itself." ★ Top 5% in successful oDeskers ★ More than 10000 odesk billed hours ★ More than 35 Projects of 5 star rating ★ More than 65% Repeated Clients ★ Full time freelancer and ISTQB certified QA tester ★ oDesk Top 10% in : Software Testing Test These are the facts which I will not claim unlike other freelancers.. What I claim is "To find out the visible and hidden defects,loop holes,gaps,broken processes,lack of standardization and simplification in your application for which you have chosen oDesk and posted this QA job" ★ ★ ★ ★ ★ ★ ★ I will need and start only with demo URL and ends with bunch of satisfied customers in your portfolio. ★ ★ ★ ★ ★ ★ ★ You wonder how's that possible!!! Here are the facts which end your search and start your smiles.. I am well versed in .. ✔ Testing Domains: Healthcare, e-commerce, e-learning, business intelligence, ERP, CRM, Magento,social media, CMS,Gaming,VOIP, POS, Accounting,Gaming etc. ✔ Types of testing : Smoke, Sanity, Black Box,White Box,Grey,Functional,Regression, System Integration, regression Testing, Build Verification Testing, Compatibility-Cross and Backward (OS/Browser), Internationalization (i18N),User Acceptance Testing (UAT), Basic Performance Testing, ETL Testing, etc ✔ QA methodology and processes: CMMI, ISO, Agile Scrum best practices,waterfall model, RAD, V- model etc. ✔ QA Tasks: Analyze,review and assess user requirements,specifications and models for testability Test Scenario, Test Case, Test Plan, Test Strategies, Test Traceability Matrix, Gap Analysis,Conduct quality assurance on product updates at planned intervals. Triage data issues that emerge from user-feedback to drive product improvements. Creating lessons learnt document on projects ending Risk Management, Mitigation and Contingency Planning,Help develop strategy for growth, including resource needs, automated testing etc. ✔ Bug Reporting tools: Notepad, Wordpad, MS word, MS Excel, MS TFS 2010, Trello cards, JIRA, Mantis, Bugzilla, CodebaseHQ, Redmine, Basecamp, Version one, Assembla, Pivotal Tracker, Issues and many more.. ✔ Bug Analysis Tools: FireBug, FirePath, Xpath Checker, In browser Developer tools Inspect elements and HTTP Requester. ✔ Test Case Management Tools: Microsoft Test Manager, Test Link, Test Rail and Testopia ✔ Version Control System : Microsoft Visual SourceSafe, SVN, Team Foundation Server ✔ White Box Testing tools: NUnit, JUnit, TestNG, MS Test ✔ Performance Testing Tools : LoadRunner, WebLoad, Apache JMeter ✔ Database: SQL Server, MySQL, DB2, Teradata, Sybase, DB2 Mainframe ✔ Operating Systems to test: Windows 2000/Xp/Vista/Win7/win8,Ubuntu,Mac 10.9.2 ✔ Gadgets available for Testing : iPhone 5S,Samsung Galaxy S3, Google Nexus 4,Samsung Duos,iPod touch 4th Gen.(iOS 6),iPad 3 (iOS 7.0),Lenovo Yoga,Kindle Fire 2

    $22.22 /hr
    13,404 hours
    4.96
  7. Arung Priyo Isyadi

    Arung Priyo Isyadi

    Senior Website Developer Specializing in PHP/MySQL, jQuery, ASP.Net

    Indonesia - Last active: 1 month ago - Tests: 5 - Portfolio: 8

    A passionate Website Designer/Developer, always believe in the combination of aesthetic and functionality of Application, Thrive for success and perfection, maintain balance on joy and works, and a persistence with details and results oriented type of person. I am a "Behind the screen" type of person, I don't like the spotlight on me. I always believe that success can't be achieved without hard work, but I also believe that hard work is not something that you can't enjoy. So I enjoy my ride to success... Since July 2012 I joined oDesk, from there i have the chance to meet and work with a lot new employers with so many exciting projects experience. I have the greatest live experience by working on something I have passion in. My most memorable projects I have involved with were: 1. Extending a Joomla based website to be a Car Loan Facilitator website for a company in Alberta, Canada. 2. Build an online dating application from ground base PHP and MySQL, yes it's pure PHP and MySQL application without any addition of Javascript or even JQuery. I managed to learn CSS animation technique using transform function. 3. Build a Casino Web Application for betting and gambling. Using Adobe Flex technology. 4. Get involved in Facebook Timeline technology development. 5. Open Source Online Anti Virus Web Application 6. iOS Application to measure fat in the body. 7. Anti Malware Application for Wordpress websites. 8.. Extending Joomla in to a Relationship Online Game Application. 9. Extending Wordpress in to an open Intelectual Rights Online Market. (on progress) 10. Online Video Resume Application. (on progress) 11. Mix and Match Online Website Template Editor. (on progress) After this amazing journey, I would really find a company where I can give my heart to 100%. I have one company in my heart where I see my future in it, but I would like to see what their action would be for me. Meanwhile, I am still looking for the best place where I can put my heart to.

    Groups: Application Developers Alliance, Bluehost Developers and Designers...

    $27.78 /hr
    10,179 hours
    4.92
  8. Punam Tandon

    Punam Tandon

    Expert developer team in ASP.net, C#

    India - Last active: 1 day ago - Tests: 2 - Portfolio: 12

    We are a team of professional at Rayimatic Software Solutions Pvt Ltd. We develop and design high quality web applications using the Microsoft Technologies. We keep updating the skills and learn new technology to keep the pace with the latest development trends, so that we can deliver the high performing, secure and robust web applications and websites, that helps to develop firm business requirement Our solid experience with Microsoft technologies like ASP.Net C# and SQL Server allows us to develop your web app or website much faster saving you time and money without compromising on quality.

    $16.00 /hr
    175 hours
    4.64
  9. Mudit D.

    Mudit D.

    Core Php, mysql, codeigniter, javascript, jquery, ajax

    India - Last active: 1 day ago - Tests: 7 - Portfolio: 6

    I'm a TOP RATED freelancer with 8+ years of experience in Php,mysql,html,css,javascript,jquery,ajax etc. I work as full-time freelancer so I'm completely dedicated to your needs and readily available over skype! I love to code and client satisfaction is my prime motto. I only bid when I truly feel I can provide the project at hand with 100% expertise. - I generally work in US time - I am not associated with any company and work individually with no further outsourcing your work - I am readily available over skype - I can speak fluent english - I am willing to establish long term work relationship

    $33.33 /hr
    3,654 hours
    4.99
  10. James Woodmancy

    James Woodmancy

    Umbraco/.NET Developer

    United Kingdom - Last active: 1 day ago - Tests: 1 - Portfolio: 2

    Umbraco Certified Level 1 and 2 10 years experience in web development London digital agency experience working on many high profile sites including Bupa,Channel 4,The Prostate Cancer Charity and Mencap. All built using the Umbraco CMS. My Core skills include Umbraco, ASP.NET, C#, SQL, AJAX, JQUERY/JavaScript/JSON, XML/XSLT/XPATH, MVC, Entity Framework I am originally from the UK living in Taiwan so I am a native English speaker.

    $48.00 /hr
    1,643 hours
    5.00