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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, 607 AJAX projects are completed every quarter on Upwork.


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.

Last updated: October 1, 2015
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Daniel I.

Daniel I.

Senior C#/.NET Developer

Ukraine - Tests: 9 - Portfolio: 9

Over last 14 years I was involved in the development of different business applications and sites for wide variety of the industries. During my decade in the freelancing industry, occupying different positions (from developer to team lead) I have built strong work habits that drive remote development efforts to the success by: - proactive identification of the requirements and business knowledge holders, decision maker(s) - analysis of the requirements towards vital risk factors like development time/system performance - communication of the vital requirements/knowledge/raised risks to the decision makers and involved persons - keeping requirements simple, implementable and comprehensible by constant validation, clarification & refinement - immediate notification of the decision maker(s) about all factors changes that affect development process - setup of process (bug tracking, source control, etc) if needed - and many more - based on my intuition and experience I developed extensive design & development knowledge, skills, experience and intuition and can do: - requirements gathering, validation & clarification - application architecture design (gui, multi-tiered/server side, reliability/messaging) - object oriented design & implementation with simplicity and extensibility in mind - multithreading, server side (web services, XML/JSON, CQRS) - apply design patterns where appropriate - investigate/apply efficient data structures and algorithms - database design, implementation with reliability, availability & consistency in mind - database performance tuning - performance tuning by identification and optimization of the innefficient: API usage, algorithms, data structures, database implementation/usage, transactions handling, network interaction, etc - resources management fixes (memory/resources/handles leaks) - "sense" for the algorithm/workflow complexity in means of time/memory consumption Primary technologies: - .NET, C#, WPF, WCF, LINQ, ASP.NET/MVC - SQL, MS-SQL/T-SQL, Firebird, PostgreSQL, MySQL, SQLite - ADO.NET, Entity Framework, NHibernate - Spring.NET, Castle, Unity - MSMQ, RabbitMQ - WinForms, WPF, DevExpress, Telerik - Android/Java (REST,SOAP, JSON, GCM, SSL) I'm willing to communicate at any suitable time through Skype or any other preferred IM. I'm available 40+ hours per week and usually available from 10:00 to 22:00, UTC+2:00 Looking for interesting projects and long-term relations. Regards, Daniel

78% Job Success
$27.78 /hr
5,173 hours

Vikas M.

Vikas M. Agency Contractor

Microsoft Certified Senior Programmer with 8 Yr Experience

Germany - Tests: 6

Developer with 8+ years Experience in Vb,,J2ME,Web Service,WCF,MVC4 Senior Developer with more then 9 year Experience in vb, 6yr experience in .net/c#. Also having strong knowledge in web development using asp,, php. 3 yr experience in mobile develoment using j2me and Blackberry. I am seeking opportunities to work in above areas.

Associated with: dmexporter

$16.67 /hr
215 hours

Edi S.

Edi S.

Azure and ASP.NET MVC Specialist

Indonesia - Tests: 9 - Portfolio: 11

Microsoft Certified Professional Developer with 6 years professional experience in Website and Desktop application developments, databases, technical specification, designing, maintenance and support.

$25.00 /hr
0 hours

Jeric T.

Jeric T.

Creative Director, Producer, Web Hero

Singapore - Tests: 2 - Portfolio: 7

15 years of experience in web development, UI/UX, web marketing strategist. 8 years of experience with MySQL, PHP, CSS, HTML and Javascript. 9 years of experience in music making. 8 music awards. Very good experience with Codeigniter and Wordpress. I'm a producer, web hero, entrepreneur who loves to create new things. With a few music awards under my name, I believe in the concept of fun, ease of learning, and the balance of complicated & easy ideas. All my creative work rely on these - especially when it comes to interfaces and experience for users & customers. I code, consult, write & sing. I believe that anything worth doing, is worth over-doing. I released my debut album in Taiwan, 2010. (See: I consulted for for their online shop, helped design, and built Zion / from scratch, a gaming platform for gamers, with 190,000 members. Fluent in English & Chinese~ 真的。 I am currently Creative Director and Producer at CLE Media Productions, Singapore/Taiwan, and I run my own Web/Audio/Video Production Studio. I look forward to working with you.

90% Job Success
$48.00 /hr
40 hours

Ruslan K.

Ruslan K.

Programmer / Developer

Russia - Tests: 5

Hello. I am experienced in . Web Technologies ( php/yii2/other , html/html5, js/jQuery, Css, Nginx/Apache, C#/entity) . Mobile Development ( Android (java, c++) , Ios Over the last 5 year I developed Server - Mobile Client Application ( data reports and handle ), also Web part (Xamarin/С# Entity) video catalog mobile application ( Objective C, Android) file exchange web server ( php/yii) openvpn user/host web management system Fixing sites with custom code base.

$20.00 /hr
0 hours

Waruna Jayakody

Waruna Jayakody

Expert Wordpress / Woocommerce / Buddypress / PHP / HTML5 / CSS / JS

Sri Lanka - Tests: 5 - Portfolio: 20

I provide quality web development services. I use PHP, MySQL, HTML5, CSS3, Javascript, jQuery, AJAX, ExtJS, Wordpress, Woocommerce, Buddypress and other web programming technologies and platforms. Since 2007 I gained experience in e-commerce, marketplace, auction, social networking, dating and tracking application development. Websites, mobile native and web apps, Facebook and other social network applications - that's what I can create for you. Recently I started providing game development services as well. Your success is just my success. Thanks for your reading. Waruna Jayakody BSc in IT (SLIIT)

88% Job Success
$12.00 /hr
1,070 hours



Versatile Full Stack Web Developer

France - Tests: 10 - Portfolio: 6

I am a "versatile" full stack web developer. I can perform those tasks (in order of proficiency): - web development and integration (phpMysql, html5/css3, ajax) - network, system and web server administration (git/ssh, apache2, nGinx) - domain names and web hosting management - psd to htm conversion I mainly know how to use 4 services of AWS: - EC2 - S3 (which I generally use to store photos for instance) - How to create IAM roles linked to an EC2 instance to communicate and interacting with s3 content (My website for instance use aws php sdk to display photos from my s3 bucket) - I know about cloudfront (and use geographic restriction on my website also) - I already made route 53 configurations My methods of code deployment, backup and maintenance are fast and safe since I will have a git repo of your project on bitbucket, locally on my machine and preferably on a compute cloud service (AWS). My speed inet connection is 5mbs. ps: sorry I am not interested in working with social network API.

87% Job Success
$22.22 /hr
154 hours

Christopher L.

Christopher L.

Podcast and Audio Editor/Writer and Voice Overs

United States - Tests: 2

I have been producing podcasts since 2006 and editing audio, particularly spoken work since the late 90's. I live for making your audio pop and shine! Need those "ums" and "ahs" removed? I'm your guy! Have two co-hosts that seem to talk on top of each other, I just might be able to smooth all that out. Need a voice over for your opening? I have you covered there too! Need a host for your podcast? I have hosted several over the years. I can even help you develop your format, create you opening and closing credits, and give you suggestions on how to improved your podcast or production. Besides my audio editing experience, I am also a web developer, so I have a great understanding of the current technology. I am also a theatre guy and have directed several theatrical productions so I can make performance suggestions and have a great sense of the entertainment pace for your production. In short, podcasting is my passion! My rate may be slightly higher than what others propose, but I am good at what I do, and quick at what I do, so you can count on the best "bang for your buck". Quality and speed, what more could you want! Contact me and we can discuss your project!

100% Job Success
$25.00 /hr
461 hours

Will Edwards

Will Edwards

Creativity, Focus and Results

United States - Portfolio: 6

Professionally, I have flourished in two careers for over 15 years - music and technology. My tandem careers have developed a unique and powerful set of skills - a multi-dimensional approach. I'm a creative thinker, quick to size up the important details, isolate priorities and get your project moving in a productive direction quickly - whether it's artistic, technical (or both!). Experience makes the difference and I've spent my career bridging the gaps between art and technology. From multi-track digital recordings (engineering, mixing and mastering) to elegant database implementations and beautiful graphic designs, my winning combination of creativity, focus and results has empowered my clients again and again.

$30.00 /hr
0 hours

Mohamed Nuzarath

Mohamed Nuzarath

Web Developer

Sri Lanka - Tests: 8 - Portfolio: 6

Over the last 14 years, I have developed a wide range of websites using HMTL, DHTML,XHTML,CSS, PHP, MySQL, JavaScript, jQuery, AJAX including sites for startup companies and small businesses. My core competency lies in developing websites for small and medium sized business at an affordable rate, and I am seeking opportunities to build websites from the ground up for you or your business. I also have experience in the following areas: SQL, Ajax, OOP, and software design and testing. and Microsoft Office Package Applications. As part time work i do photography, and have covered several events and weddings as well. Apart from developing websites and software I have been working for a well reputed companies for more than 10 years and currently working more than 4 years in another company now as Senior IT Lecturer and Department head of Multimedia, and I do teach the same relevant subjects which are relevant for web development. please be kind enough to see my portfolio to view my recent work.!

$10.00 /hr
2 hours