Haris Ainur Rozak

Haris Ainur Rozak

Expert WordPress Developer


Haris is a professional WordPress developer. Having worked at a WordPress development agency for five years as a senior WordPress developer and then became self-employed at Upwork for about three years now, he excels at building and maintaining various WordPress projects.

Haris believes that WordPress can do anything, so every need from a website can be done with WordPress, and every problem found on WordPress can be fixed.


Custom WordPress Plugin & Theme

There are tons of WordPress plugins and themes available on the market, whether it's free or paid. But many people often need a unique one, a shape of their own ideas that will make their job done and ofcourse without adding new problems.

I have years experience of build custom WordPress plugins and themes, some of them are just add-ons or child themes to extend their parents functionality, some other are stand alone plugins and themes with unique solutions.

WordPress REST API

As a WordPress's built-in function to communicate with outside, WordPress REST API become a popular solution to bussiness models that require a reliable function to communicate between 2 or more WordPress sites like data synchronization, or even between WordPress with different systems like Mobile or Desktop apps.

I have been using WordPress REST API to some projects like WooCommerce stock sync, user frontend dashboard, and mobile app's online application data.

Plugin & Theme Enhancement

Not everyone happy with their installed plugins or themes, some of them are have a particular plugin installed on their site because it's the only plugin that cover most of their needs, but not all of them.

In this case, we need to create a custom plugin or child-theme to cover the stock plugin's lack, and on my experience, the enhancement can be on WordPress filters code, MySQL query, or even on front-end jQuery code.

WordPress Bug Fixing

Error happens, even on most used CMS like WordPress. With my experience, we can track down the error source without make the website down (off-line) so you won't loose any visitors, and then we can focus on create a custom plugin or modify the child-theme's code to patch the bugs.

Coding Advantages

  • Always follows the WordPress Coding Standarts rules.
  • Always prefer to use the OOP instead of Procedural Programming.
  • Always happy to use the well-known and recommend WordPress Plugin Boilerplate as a custom plugin starter.
  • Always make sure the error.log file is clean, even from a single warning message.
  • Always produces the heavily commented source codes, to make it easier to read and maintenance.


  • WordPress
  • PHP
  • MySQL
  • HTML
  • CSS
  • JavaScript
  • ReactJS
  • Git
  • Linux Server


The best Wordpress and WooCommerce developer I have ever worked with - thanks for all your hard work!

Robert Coleman, from Etailer Limited

Haris is a very talented freelancer for all your WordPress work. He created a state-of-the-art complex WordPress plugin with all standards and confirming all guidelines. As extra, he also delivered clear documentation of all his API call's in Postman.

Absolutely nice to work with, and we will definitely hire him again! Thanks for the great job!

Flip Van Den Bosch, from CRYPTON Netherlands

Really appreciated Haris's proactive approach to delivering a good solution for the Wordpress functionality we required. Happily recommend for any custom WP plugin functionality.

Dan Jansen

Haris delivered good work on this PHP development project and I enjoyed working with him. His communication was top-notch, he met all deadlines, and his skills were reasonably strong.

I enjoyed working with Haris and will likely have additional jobs for him in the future.

Alex Kamaras, from MAD Mentors LLC

A great person to work with. I was very pleased with the level of attention to detail and quick responses to my messages. A+ person with great quality of work. Hope to work with again soon.

Bruce Bigham, from Kow Abudant

He was awesome! He did great work and I will definitely use him again in the future. Thank you for your patience!!

Glenn Hong, from Billionaires in Training LLC

Good works on the project, totally meet what we needs. Haris can provide the right solution to use even before we hire him. Highly recommend!

Wesley Li

Great experience, above and beyond in efforts!

Paul Dauterive

Plugin Creations

  • An auto content-excerpt plugin Source
  • A jQuery slider / carousel plugin Source
  • An add-on for above slider plugin Source
  • A Plugin to customize WordPress login screen Source
  • An Image gallery plugin with jQuery Lightbox Source
  • In post content jQuery slider / carousel plugin Source
  • A plugin that gather some useful WordPress utilities Source


Development Tools

  • Visual Studio Code
  • Chrome DevTools
  • Git Bash
  • Postman
  • Vagrant
  • Local by Flywheel
  • Affinity Designer
  • Adobe XD

On The Internet