Mirza Md Hasan, Developer in Kingston, ON, Canada
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Mirza Md Hasan

Verified Expert  in Engineering

WordPress and Shopify Developer

Kingston, ON, Canada
Toptal Member Since
July 30, 2019

Mirza is one of the top Shopify developers and WordPress experts in Toptal. With a decade's expertise in WordPress and seven years dedicated to Shopify, Mirza consistently provides high-quality services on a global scale, fulfilling clients' digital needs and ensuring their business success. His portfolio includes the development of numerous websites, themes, and plugins tailored to clients' unique requirements. Mirza's proficiency also extends to on-page SEO, website security, and optimization.


Steel and Pipes
JavaScript, Liquid, Shopify, Shopify Theme, Shopify API
The Kraft Heinz Company - CRM/DTC
Shopify, JavaScript, Liquid, Shopify Theme, Shopify API
StartVim, LLC
JavaScript, Shopify, Liquid




Preferred Environment

XAMPP, Git, Visual Studio Code (VS Code), cPanel, Plesk, Shopify, WordPress

The most amazing...

...plugin I've developed is Instantio: it can convert a multi-step checkout to a one-page checkout. The whole order can be completed within 10-15 seconds.

Work Experience

Shopify Developer

2022 - 2022
Steel and Pipes
  • Converted Figma designs into responsive Shopify websites.
  • Assisted with the implementation of new designs and new features on their new version of the platform.
  • Added additional functions on Shopify themes and back end.
Technologies: JavaScript, Liquid, Shopify, Shopify Theme, Shopify API

Shopify Developer

2021 - 2022
The Kraft Heinz Company - CRM/DTC
  • Created websites, worked on basic website maintenance, added tracking codes to websites, built blogs, and added and removed products from a variety of eCommerce websites.
  • Converted Figma designs into responsive Shopify websites.
  • Worked on different landing page builder websites like Cheetah and developed landing pages for clients.
  • Troubleshot and debugged pre-existing websites.
  • Integrated various plugins and 3rd-party APIs.
  • Coded email templates, built landing pages, and led capture forms.
Technologies: Shopify, JavaScript, Liquid, Shopify Theme, Shopify API

Shopify Developer

2021 - 2021
StartVim, LLC
  • Migrated an eCommerce store from Jotform to a Shopify store.
  • Built the store in Shopify based on the design provided.
  • Built custom features, added order history options, and worked on the payment gateway setup.
Technologies: JavaScript, Shopify, Liquid

eCommerce Developer

2021 - 2021
Advocate Industrial
  • Developed WordPress themes based on the provided Figma design.
  • Built an online store for commercializing products of the business.
  • Advised on company SEO techniques and marketing for better sales.
Technologies: JavaScript, PHP, WordPress

Senior WordPress Developer

2020 - 2020
Isobar (a trading division of Dentsu Aegis Ireland Ltd)
  • Contributed to the customization and front end of a new financial service product.
  • Built a platform that will be a feeder website, acquiring and centralizing SEO and 3rd-party information to be used.
  • Synchronized directly with the PM about work progress and updates.
Technologies: WordPress, CSS, HTML, PHP, WordPress Themes, WordPress Design

Shopify Developer

2020 - 2020
Eatsimplefoods Limited
  • Fixed website bugs and performed some maintenance tasks.
  • Improved UI and made changes based on the design team's mockups/wireframes.
  • Converted Figma designs into an existing Shopify theme and made it responsive.
Technologies: HTML, JavaScript, Shopify, CSS, Liquid

Freelance WordPress Developer

2018 - 2020
Raconteur Media Co.
  • Developed WordPress websites from scratch based on provided design.
  • Customized website forms developed with Gravity Forms based on the client's requirements.
  • Maintained WordPress websites and updated the sites regularly.
  • Configured SEO settings of the websites, including the configuration of the popular Yoast SEO plugin.
Technologies: JavaScript, PHP, WordPress

Web Developer

2014 - 2018
Gazz Digital LLC
  • Developed WordPress-based websites and plugins based on the provided design.
  • Maintained WordPress and Shopify-based sites. Kept them updated.
  • Configured SEO settings of the websites, including the configuration of the popular Yoast SEO plugin.
  • Optimized the speed of the websites based on Gtmetrix.com and Google PageSpeed Insight.
Technologies: JavaScript, PHP, WordPress

WordPress Expert

2013 - 2017
Crawford & O'Brien
  • Converted PSD design into responsive WordPress websites.
  • Developed and customized responsive Shopify websites.
  • Maintained and updated WordPress and Shopify sites.
Technologies: JavaScript, PHP, WordPress

WooCommerce-based Plugin Development

Working with clients for several years, I found a lot of eCommerce clients complaining about how time-consuming the default WooCommerce checkout system is. Thus, I thought to develop something interesting which can ease this process. That is when I planned to develop Instantio.

Instantio can convert a multi-step checkout to a one-page checkout. Now, all your customer has to do is “Add to Cart" and a popup will appear with the cart view. Your customer can then check out and order from that single window! No page reload whatsoever! The whole order can be made within 10-15 seconds. Yes, you heard it right! Only 10-15 seconds!

WordPress Plugin Development

Looking for a WordPress before and after slider and gallery plugin? Want to show a comparison of two images? BEAF is the ultimate before after WordPress plugin with which you can easily create a beautiful before after image comparison slider or gallery.

Design to WordPress Conversion

TripleA aims to revolutionize how businesses and customers are connected through blockchain technology and cryptocurrency solutions. I developed their website from scratch based on their provided design.

Also, I had to work on their blockchain API and connect the necessary data with the website.

Design to Shopify Conversion

Simple Foods started when Ale and Steph, two friends leading busy lives, wanted to find healthy, delicious, ready-to-eat options. Realizing there were others with jam-packed lives looking for the same thing, Simple Foods was born.
This is one of my favorite projects on Toptal and my duty was to restructure their existing project from provided design. In addition, I had to add additional functions to the website.

Shopify Theme Customization

Saving families from sleep deprivation one sleep at a time is the motto of Sleep School.
After I took this project, my duty was to customize their premium theme based on their needs, as well as adding additional functions to the website.


HTML5, CSS3, PHP, JavaScript, HTML, CSS, Sass




WooCommerce API, WordPress API, Shopify API, jQuery, Liquid


Adobe Photoshop, Affinity Photo, Figma, Git, Brackets, Sketch, Plesk


WooCommerce, Shopify, WordPress, Webflow, Webflow CMS, OS X, XAMPP, Visual Studio Code (VS Code), cPanel




Shopify Customizations, Sketch to WordPress, Figma to Shopify, PSD to WordPress, PSD to Shopify, WordPress Themes, WordPress Plugins, AI to WordPress, HTML to WordPress, Shopify Theme, WordPress Design


WordPress Certifications