Hire the Best AJAX Developers
in the United States

Clients rate our AJAX developers
Rating is 4.7 out of 5.
4.7/5
Based on 288 client reviews
Cassandra G.

San Diego, California

$75/hr
5.0
65 jobs

I'm a web developer with over 20 years of experience building, maintaining, and troubleshooting websites and custom web applications. I specialize in WordPress development, including custom plugins, custom themes, and Advanced Custom Fields (ACF). I also handle third-party integrations and inherited websites with complex or unfamiliar codebases. I'm particularly skilled at diagnosing obscure bugs, resolving display and functionality issues, and finding practical solutions that other developers have struggled to identify. Beyond WordPress, I also build custom PHP and JavaScript applications like calculators, reporting tools, billing interfaces, and API integrations using PHP, MySQL/MariaDB, JavaScript, React, and HTML/CSS. I've worked with clients in eCommerce, education, nonprofit, fulfillment, and other industries. Whether you need a custom feature, an API integration, or help tracking down and solving a difficult technical problem, I provide careful, production-ready work with an emphasis on reliability and maintainability. I'm a particularly good fit for projects where the problem is difficult to explain, the code is unfamiliar, or an off-the-shelf plugin or solution cannot provide the required functionality.

  • Drupal
  • ASP.NET
  • WordPress
  • jQuery
  • CSS
  • React
  • PHP
  • HTML
  • JavaScript
Ken S.

O Fallon, Missouri

$50/hr
4.9
51 jobs

Experienced and versatile database and web developer. Wordpress, Paid Memberships Pro, plugins, C# .Net, AWS (EC2, Route53, Lambda, API Gateway), Node.js, jQuery, HTML, CSS, Databases REST API, Twilio SMS and Sendgrid.

  • Node.js
  • jQuery
  • WordPress
  • .NET Framework
  • SQL
  • PHP
  • ASP.NET
  • ExpressJS
  • HTML
  • AWS Lambda
  • Scripting
  • SQL Programming
  • SendGrid
  • Twilio
Jennifer J.

Novato, California

$85/hr
4.9
11 jobs

I have 10+ years of experience with frontend and backend WordPress development and site management. WordPress • LAMP Stack • PHP • AJAX • Javascript, JQuery • HTACCESS • GIT • AWS • SSH • Theme Development • MySQL • Photoshop • HTML, CSS • JSON • PHP Frameworks - CodeIgniter • RegEx • Zapier • Google Search Console • LiveChat • MailChimp • Facebook Pixels • Google Services • Yoast SEO • Organic SEO • Gravity Forms • WooCommerce • Divi • Shared Hosting • cPanel • DNS Management • SMTP • Website Security I am currently looking for one-time projects: redesign of your site, additions, hardened security, etc. I prefer using the Divi theme for heavy design projects because working with familiar, proven tools allows me to move faster, streamline the process, and deliver high-quality results without wasting time or your budget on a learing curve or unnecessary complexity.

  • AJAX
  • MySQL Programming
  • Zapier
  • Regex Writing
  • JavaScript
  • PHP
  • LAMP Stack
  • Adobe Photoshop
  • cPanel
  • HTML5
  • CSS 3
  • jQuery
  • Gravity Forms
  • WordPress
  • WooCommerce
Scott T.

Adams, Wisconsin

$100/hr
4.6
174 jobs

I'm an IT pro with 25+ years of experience--a complete WordPress developer who aims for flawless project completion with excellent understanding, great communication, and fast delivery. I've done web hosting and web development since 1997, and Wordpress development since 2008. I've spent a career in application design, development, and project management. I'm good with PHP, HTML, CSS, Javascript, and the Wordpress ecosystem. My greatest strength is my ability to take a business concept and figure how to best achieve it technically. I'm quite comfortable building Wordpress plugins and themes, and I've got a lot of experience building back-end PHP components too. Here's a partial list of items I have experience with: * Custom plugins and custom themes * High-performance hosting * Back-end development * Front-end development * Site performance/speed optimization to increase Core Web Vitals, PageSpeed, and GTMetrix scores * Website scraping * Back-end customization using custom post types (CPT), and custom post meta-fields using CMB2 and ACF * Elementor layouts * Gutenberg layouts * GeneratePress and GenerateBlocks

  • Web Development
  • JavaScript
  • Page Speed Optimization
  • Web Hosting
  • HTML5
  • WordPress
  • CSS 3
  • PHP
  • Content Management System
  • Gutenberg Editor
  • HTML
  • CSS
  • WordPress Development
  • WordPress Theme
  • WordPress Plugin
  • Elementor
M Ahsan M.

Roselle, Illinois

$40/hr
4.9
70 jobs

Over the years, I have developed a wide range of websites using PHP, and MySQL, HTML, CSS, Javascript, including small, medium and large sites/applications for different types of companies, institutions and organizations. I've worked on CMS, E-commerce, CRM, POS, SCM, account and SaaS applications. I've experience of setting up click funnels and all kind of API and payment solutions integration including Stripe, Authorize.net, Paypal. I also have some experience in the following areas: Wordpress, WooCommerce, OsCommerce, Yii, Ajax, jquery, OOP, Magento, Joomla, CodeIgniter, Hubspot, Mailchimp, Infusionsoft/Keap, Zapier. I don't just write code but I write efficient code and develop professional applications. Over 10 years experience in IT field makes me understand the details about the task in better way. 10 years experience of webmaster and web publishers help me understand the needs of client and end users of the application. All my IT related experience has helped me to develop efficient and professional software/web applications for the last 6 years. I've joined Upwork to explore the market and play my part in the professional development in an efficient manner. Looking forward to work with the best organization/individuals to develop professional applications for the world.

  • AJAX
  • Web Development
  • jQuery
  • HTML5
  • CSS 3
  • WordPress
  • JavaScript
  • HTML
  • WordPress Development
  • WooCommerce
  • Payment Gateway Integration
  • CodeIgniter
  • PHP
  • Yii
  • API Development
Stephen E.

Marysville, Washington

$45/hr
4.3
69 jobs

I work in PHP, SQL, CSS, Jquery, javascript, Twilio, Wordpress, Joomla, laravel, Ajax, Bootstrap, have a lot of experience in many aspects of web development. Always up for a challenge and enjoy learning anything new. Please include a budget in your invite to me as it saves a lot time for both of us. Let me know what I can do for you.

  • AJAX
  • HTML5
  • JavaScript
  • SQL
  • MySQL
  • HTML
  • CSS
  • Bootstrap
  • jQuery
  • WordPress
  • AI Consulting
  • AI Text-to-Image

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