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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, 588 AJAX projects are completed every quarter on Upwork.

588

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: August 1, 2015
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  1. Daniel I.

    Daniel I.

    Senior C#/.NET Developer

    Ukraine - Last active: 5 hours ago - 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

    $27.78 /hr
    4,728 hours
    4.79
  2. Edi S.

    Edi S.

    Azure and ASP.NET MVC Specialist

    Indonesia - Last active: 1 month ago - 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
    5.00
  3. Mika A.

    Mika A. Agency Contractor

    PHP Developer / HTML,CSS,Javascript Design / Drupal enthusiast

    Madagascar - Last active: 1 day ago - Tests: 10 - Portfolio: 15

    I am a PHP/MySQL developer with great competence on design using HTML,CSS and Javascript. I have been in a computer science school and I am working as webmaster for a small company. I am interested to work on all kind of projects from website design and coding to more complex applications. My challenge is to provide professional end full featured projects using only free tools and Opensource softwares.

    Groups: Application Developers Alliance, Bluehost Developers and Designers

    Associated with: Ant Company

    $25.00 /hr
    304 hours
    4.98
  4. Jeric T.

    Jeric T.

    Creative Director, Producer, Web Hero

    Singapore - Last active: 4 months ago - 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: http://fb.me/jericbook) I consulted for http://Garena.com for their online shop, helped design http://Shownearby.com, and built Zion / http://DotaPod.com 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.

    $48.00 /hr
    40 hours
    5.00
  5. India FitzAllen

    India FitzAllen

    Full service Marketing, Web and Creative Agency

    United States - Last active: 1 day ago - Tests: 1 - Portfolio: 55

    "A" Level Graphic Design and Website Builds delivered on time and on budget. Sales and Marketing Strategy, Sell in, Trademarks and IP, Film and Television Production, Content Production, Video Production, Media Buying and Selling, Motion Graphics, Film and Television Opening Credit Design, National Campaign Creation and Execution, Infomercials and Product Launches, Product Creation, Design, Packaging, Sales and Marketing, Pitch Decks, Brochures, Catalogs, Consulting, Entertainment and Music, Sound Design, Scoring, Music. Our team is highly skilled considered on of the best in the country.

    $36.00 /hr
    124 hours
    5.00
  6. Kenji Garland

    Kenji Garland

    Web Design & Development Generalist

    United States - Last active: 1 day ago - Portfolio: 6

    I'm a full-stack web developer & designer with extensive knowledge of both tried-and-true methods and bleeding-edge tricks. I pride myself on creating attractive pages, intuitive user interfaces, and clean, efficient backend code; and I get great satisfaction from finding lasting solutions to technical problems of all kinds.

    $40.00 /hr
    0 hours
    5.00
  7. Arthur GREGOIRE

    Arthur GREGOIRE

    Versatile Full Stack Web Developer

    France - Last active: 6 days ago - 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.

    $22.22 /hr
    152 hours
    5.00
  8. Vikas M.

    Vikas M. Agency Contractor

    Microsoft Certified Senior Programmer with 8 Yr Experience

    Germany - Last active: 12/11/2013 - Tests: 6

    Developer with 8+ years Experience in Vb,C#Asp.net/PHP/AJAX,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, asp.net, 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
    4.97