AJAX Developers & Consultants

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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, 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. Fernando Barrocal

    Fernando Barrocal

    Software Architect, Project Manager and Web Systems Senior Developer

    Brazil - Last active: 13 hours ago - Tests: 5 - Portfolio: 5

    I am looking for opportunities to work on areas of my expertise, which includes building internet systems since the planning to its deployment, going through server installation, researching the best technologies the system development, webpages layout and design , focusing on the client's needs. I have a strong background working with servers maintenance since 1998, in several areas, like network analisys and security, email , file, network and application servers as well web infrastructure like LAMP. My experience includes maintence and security of networks with firewalls, anti-virus and anti-spyware solutions. As Project Manager I am able to create web systems in several languages using different frameworks like Struts in Java, Zend, Zend 2 and CakePHP for PHP and .NET C#. I have a large experience in MVC Architectural Patterns, which, in synergy with my experience working on distributed projects, gives me experience needed to work along other developers and designers as needed. I am a highly organized developer and look forward to have a system tracking tasks and jobs that are needed to be done for long term works. Among all high level frameworks I use I have experience working with several other technologies like SOAP, REST, Payment Gateways, Boostraps (twitter, node) Feel free to contact me with any question.

    $35.00 /hr
    3,371 hours
    4.89
  2. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 2 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
    1,597 hours
    5.00
  3. Dmitry Z.

    Dmitry Z.

    DevOps, Expert Linux Administrator

    Serbia - Last active: 1 day ago - Tests: 8 - Portfolio: 4

    I am a DevOps who has strong skills and pragmatic experience. Also I had extensive IT background as an expert Linux sysadmin for over 12 years. My knowledge of programming languages and systems administration allows me to integrate and automate much of my work. Linux distros: RHEL, CentOS, Ubuntu, Debian Virtualization hypervizors and containers: KVM, VMware ESXi, oVirt, OpenVZ, LXC, Docker, DEIS, Kubernetes Cloud platforms and API: AWS, DigitalOcean, Softlayer, Rackspace, Linode Monitoring: Zabbix, Nagios/Icinga, Munin, Cacti, Monit Load balancers: HAProxy, Nginx Web servers: Apache, Nginx App servers: Phusion Passenger, Apache Tomcat DB: MySQL, Percona XtraDB Cluster, PostgreSQL, Redis, MongoDB Mail servers: Postfix, Exim, Sendmail, Dovecot, Courier Control panels: cPanel/WHM, Parallels Plesk/Power Panel Configuration management and deployment: Chef, Capistrano Continuous Integration: Jenkins SCM: Git Scripting: Bash, Ruby, Python Frameworks: Ruby on Rails BDD: RSpec, Capybara

    $44.44 /hr
    980 hours
    5.00
  4. Nawwar E.

    Nawwar E.

    Expert Web programmer

    Egypt - Last active: 4 days ago - Tests: 5 - Portfolio: 4

    I'm Nawwar El Narsh a six years experienced web programmer, I'm 22 yrs old coding since age of 15, Beside freelancing I currently study Mechatronics Engineering. I started programming websites using PHP language & Mysql database 7 years ago ,I developed many Admin backends that controls complex systems payments, booking and even data management and statistics collecting, processing and viewing... I use best practice coding and provide documentation to my scripts in the end (When required by client) I've also designed and tweaked many front-end websites,I also work with, Wordpress & Joomla and in this field I have 3 years of experience, I am not only a guy who reads documentations of the platforms but also I debug codes and understand what's under the hood. I also have great skills in those fields "AJAX, Javascripts, HTML, Linux Server administration (Specially CentOS servers)"... Nawwar El Narsh www.SirNarsh.info

    $45.00 /hr
    310 hours
    5.00
  5. Ambiorix Rodriguez Placencio

    Ambiorix Rodriguez Placencio

    Asterisk/PHP/MYSQL/Vicidial/FreePBX/Linux/Expert

    Dominican Republic - Last active: 2 days ago - Tests: 1 - Portfolio: 5

    Extensive, practical and relevant industry experience in the following area : -> Asterisk and FreePBX customizations. -> Custom Asterisk Development (PHPAGI,Bash Scripting). -> Hosted PBX Solutions (Amazon AWS, DIgitalOcean, SolarVPS). -> Complex IVR Solutions (Databases Integrations, Web App Integration). -> Call Center Solutions (Vicidial,Goautodial). -> Customized Broadcasting solutions. -> Technical Consultancy. -> Asterisk & MYSQL-PHP Integration. -> Asterisk Security (Fail2ban, IPTABLES). -> PHP&MYSQL Developer.

    $35.00 /hr
    14 hours
    5.00
  6. Claudio D.

    Claudio D.

    Web Developer, IT Consultant

    Italy - Last active: 1 day ago - Tests: 6

    For the last 10 years I worked as web developer and Unix systems administrator for private, public and ecclesiastical entities. I have a solid knowledge of web technologies, Unix shell scripting and development tools. I can help you building structured web applications, chrome extensions, firefox addons, web crawlers, scrapers, command-line scripts, automated systems and much more. As my job history shows, I can deliver high quality work for either small ($15) or large ($15,000+) projects. I'm currently focused on the Dart programming language. As a Dart early adopter, I'm a long time community contributor, my contributions include writing articles, open-source projects, speaking at conferences and presenting episodes on Google Developers Live. Portfolio: https://github.com/claudiodangelis

    $50.00 /hr
    638 hours
    5.00
  7. Robert Kluver

    Robert Kluver

    Lifetime Internet Guru

    United States - Last active: 3 days ago - Portfolio: 5

    Well before the World Wide Web was a common phrase as it is today, before most people even owned a home computer I was programming code in a variety of languages for a variety of network related projects back when you had to put the handset of a telephone on a 300 baud modem. Trillions of lines of code under my belt and a mind that functions like a computer processing unit I not only understand today's most popular programming languages, I know how the languages themselves came to be. I am an expert who has owned, operated or worked with thousands of technology based businesses over the past 25 years. More than a programmer, I am a valuable consultant to any business wishing to build or improve any online enterprise. My work is relatively fast, accurate, functional and most importantly well constructed based on your exact needs. I do all of my own work but will bring in experts if necessary to accomplish the goals of your organization. I am an American living in Pennsylvania.

    $55.00 /hr
    7 hours
    4.99
  8. Don Beer

    Don Beer Agency Contractor

    IT Consultant, DBA, Development and System Administration

    Canada - Last active: 2 days ago - Tests: 8 - Portfolio: 4

    Over the past 19 years, I have developed Oracle database information systems using SQL, PL/SQL, Powerbuilder, VB and Unix scripts; developed websites using HTML, DHTML, XHTML, CSS, PHP, CodeIgniter, Ajax, Javascript, Java and MySQL; and worked as an Oracle DBA. My primary skills lie in Oracle and MySQL database design, application programming, and website development, and I am seeking opportunities to develop database applications and build websites. In addition, I have experience in Object-Oriented Design and Development, Systems Analysis and Design, data transformation (ETL) for application conversion projects, Quality Assurance, Business Continuity Planning, Server and Database Security and digital graphics using Photoshop and other graphics tools. I have also shared my knowledge in database management and design, network administration and design, quality assurance and website development as a college professor. I view the transfer of knowledge to buyers as an important part of projects in order to promote my clients continued success.

    Associated with: DBits Technology Services Agency

    $100.00 /hr
    6,387 hours
    4.99
  9. Ivan C.

    Ivan C. Agency Contractor

    Node.js / RoR / PHP / MongoDB / PHP / Laravel

    Russia - Last active: 13 hours ago - Tests: 13 - Portfolio: 7

    I have more than 8 years of web-development and database administration experiences for various kinds of applications. I have extensive experience in database optimization. I focus on PHP, JS, Node.js, RoR, MySQL, PostgreSQL, MongoDB. * Node.js development * Zend Framework / Codeigniter * Database design * Optimizing database performance * Ensuring security in the database * Ensuring the integrity of databases I participated in the creation of high-load systems (Hundreds of queries per second). I'll be glad to help you. Best regards, Ivan.

    Associated with: Lodoss team

    $35.00 /hr
    7,592 hours
    5.00
  10. Denis M.

    Denis M. Agency Contractor

    Senior C++ Developer

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

    For long years of my experience, I finished different kinds of projects. Now in every project I easily can show all my professionalism and high quality. I’m interested in projects where I could apply all my technical and communication skills. I have responsibility to manage projects and share my experience with young developers and help them to solve difficult problems.

    Associated with: ISS Art, LLC

    $36.11 /hr
    4,536 hours
    5.00