Shah is available for hire
Hire ShahShah Md Adnan Shawkat
Verified Expert in Engineering
Software Developer
Sylhet, Sylhet Division, Bangladesh
Toptal member since February 10, 2020
Bio
Shah Md Adnan Shawkat is a seasoned head of software development with over 12 years of experience building and scaling high-revenue WordPress, WooCommerce, and Shopify platforms for global brands. He specializes in performant, secure eCommerce solutions that align technology with business goals and drive measurable growth.
Portfolio
Launch Titans
APIs, PHP, WordPress, Shopify Plus, Shopify, PageFly, Payment APIs, Performance...
Nuke The House LLC
IT, Payment Processing, Webhooks, High-risk Credit Card Processing
Betallic
Shopify, eCommerce, HTML, CSS, APIs, Amazon Marketplace
Experience
- WordPress - 8 years
- Amazon - 5 years
- Shopify - 5 years
- PageSpeed - 5 years
- Plugin Development - 4 years
- Elementor - 3 years
- Shopify Design - 3 years
- Cloudflare - 2 years
Preferred Environment
Slack, Jira, APIs, ChatGPT, Claude, Cursor AI, WordPress, Shopify Plus, Shopify, WooCommerce
The most amazing...
...thing I’ve done was lead a distributed engineering team that launched over 200 high-converting WooCommerce and Shopify stores for international brands.
Work Experience
Development Manager | Lead Developer
2023 - PRESENT
Launch Titans
- Led the development of multiple high‑revenue WooCommerce and Shopify stores, handling thousands of daily visitors and processing thousands of dollars in orders each day.
- Architected and integrated Amazon APIs to synchronize products, inventory, and orders, creating a scalable new sales channel for key clients.
- Oversaw ongoing site maintenance and feature releases, ensuring fast, reliable shopping experiences and resolving critical issues before they impacted revenue.
- Implemented analytics and tracking stacks, including GA4, Google Merchant Center, shopping feeds, Hyros, and pixels, to enable precise attribution and optimization.
- Used Productive to track work, identify bugs, and run A/B tests on landing pages using Convert, improving conversion rates and reducing wasted ad spend across campaigns.
Technologies: APIs, PHP, WordPress, Shopify Plus, Shopify, PageFly, Payment APIs, Performance, Stripe, Amazon, Zapier, Amazon Marketplace, Amazon S3 (AWS S3), Amazon Web Services (AWS), ChatGPT, Claude, Cloudflare, Laravel, WooCommerce
Webhook Integration Specialist
2025 - 2025
Nuke The House LLC
- Developed and deployed a secure webhook handler to process Authorize.net notifications, automating payment status updates and ensuring reliable transaction handling for a high‑risk sports betting platform.
- Configured real‑time webhook integrations that eliminated manual payment updates, enabling instant synchronization of transaction data and doubling operational efficiency for the payments team.
- Tested, validated, and delivered a production‑ready webhook system in under one week, significantly improving payment reliability and aligning with strict high‑risk processing standards.
- Collaborated with client stakeholders to define edge cases and fallback flows, minimizing payment disputes and support tickets related to transaction status.
Technologies: IT, Payment Processing, Webhooks, High-risk Credit Card Processing
Shopify Developer
2024 - 2025
Betallic
- Integrated AWS marketplace into Shopify. Set up 2-way inventory syncing from Shopify to AWS and vice versa. Established and maintained the AWS marketplace.
- Utilized Google Chat as the primary tool for communicating with clients.
- Completed setting up the connectivity between the two stores and 2-way sync.
Technologies: Shopify, eCommerce, HTML, CSS, APIs, Amazon Marketplace
WordPress Developer + Shopify & Amazon API
2022 - 2022
Wine Company
- Develop an entire WordPress site integrated with a Shopify Store and Amazon Marketplace.
- Performed the integration of the Klaviyo SMS system into the checkout page.
- Updated the web shop by creating a staging site and pushed it to live, as the company needed a developer to maintain and update the site properly.
- Integrated the subscription system into the website to sell memberships through the website, resulting in over 20 members signing up immediately.
Technologies: PHP, WordPress, Laravel, Magento, Stripe Checkout, WooCommerce, Performance, Amazon
Senior Software Engineer
2022 - 2022
TripleA
- Developed a WordPress plugin to integrate cryptocurrency with WooCommerce. Also developed an OpenCart extension to accept crypto in their webshop.
- Tracked and fixed over 50 bugs and issues with their existing WordPress and OpenCart solution.
- Started working on creating a Shopify and Amazon extension.
Technologies: Amazon Web Services (AWS), WordPress, WordPress API, Magento 2, Shopify, OpenCart, Website Migration, WordPress Plugins, Plugin Development, Bitbucket, Elementor, Payment Processing, Payment APIs
WordPress WooCommerce Developer - Amazon + Zapier
2021 - 2022
Construction Company
- Created a bridge to connect their webshop data to their external API system through Zapier.
- Tracked the work and bugs using Slack and Jira as the reporting tool.
- Oversaw the product launch, resulting in a thousand concurrent users during the launch date.
- Integrate Amazon Marketplace and export data to Zapier.
Technologies: WordPress, WooCommerce, Amazon Web Services (AWS), Payment Processing, Amazon
Senior WordPress Developer
2020 - 2021
LadyBoss
- Managed the WooCommerce-based eCommerce website and the team tasked with its maintenance.
- Used Monday board as a reporting tool. Added dynamic data layer for tracking purposes.
- Led product launches with over 2,000 consecutive users at the time of launch.
Technologies: WordPress, WordPress Plugins, Theme Development, Leadership, Cloudflare, WP Engine, Google Tag Manager, WordPress Rescue, WordPress API, MySQLi, WordPress Multisite, Website Optimization, Bitbucket, Elementor, Payment APIs, Performance, Stripe
Lead WordPress Developer
2019 - 2021
Strativ AB
- Developed an eCommerce platform for a Swedish-based client selling items over eight countries, though it's an ongoing project with live maintenance.
- Developed a website for a renowned company in Sweden with over 350 resellers all over Sweden. They're selling agricultural products to different countries.
- Developed Teamtailor integration plugin for WordPress for a client. They use Teamtailor for recruitment, and they need a standalone plugin that integrates with WordPress via their API system.
- Used Jira for time tracking and Bitbucket for the version control of the codebase.
- Worked on AWS for a client called Handla Hallbart's site migration.
Technologies: Amazon Web Services (AWS), Atlassian, CSS, HTML, PHP, WordPress, WordPress Rescue, Jira, WordPress API, MySQLi, Website Migration, HTML to WordPress, WordPress Plugins, PSD to WordPress, Website Optimization, Plugin Development, Bitbucket, Elementor, Amazon S3 (AWS S3), Performance, Stripe
Senior WordPress Developer
2016 - 2019
Themeregion
- Developed over 15 ThemeForest-based WordPress themes.
- Created various plugins for the WordPress repository and custom builds to support theme functionality.
- Built plugins for users to use free of cost so that they can benefit from their business.
Technologies: JavaScript, CSS, HTML, PHP, WordPress, WordPress Rescue, WordPress API, MySQLi, Subversion (SVN), Website Migration, HTML to WordPress, PSD to WordPress, Bitbucket, WPBakery
Software Engineer
2015 - 2016
Sourceevo
- Worked with WordPress Multisites specifically and learned to manage multi-sites.
- Created customized PHP MVC framework to work for a client's project.
- Worked on PSD to WordPress conversion. Also created many snippets for core WordPress.
Technologies: Amazon Web Services (AWS), WordPress Multisite, Jira, CSS, HTML, PHP, WordPress, WordPress Rescue, MySQLi, Amazon S3 (AWS S3), Payment APIs
Software Engineer Level 1
2013 - 2015
CodeBoxr
- Used Facebook API to build a Facebook profile-based plugin for WordPress.
- Worked with Linkedin API to build Linkedin resume plugin for WordPress.
- Created an eCommerce site using Magento 1 and an integrated local payment gateway for Pathak Samabesh.
- Built a Drupal module to showcase Pinterest pins into the website.
- Developed a cloud-based solution using the CodeIgniter framework for an Australian client.
Technologies: Git, Trello, Drupal, Magento, WordPress, MySQLi
Experience
Treem
https://treem.com/A Sweden-based eCommerce website company where it's developed it in WordPress. We used Elementor Pro as a front-end editor to design the whole website from Adobe XD designs to live website along with other custom-made functionalities to make it rich and fully functional.
Ladyboss.com
This is a fitness product-based website built by WooCommerce and my main goal was to speed up the website and remove any unnecessary plugins messing up the site speed. I managed to make the site load faster using a Multisite and Cloudflare for the cache-based system.
My role was the tech lead motivating the teammates and guiding them on the proper way to develop the content and site.
My role was the tech lead motivating the teammates and guiding them on the proper way to develop the content and site.
Sistah.biz
https://www.sistah.biz/Created the website using WordPress with Beaver Builder to get the perfect design that the client wanted, where Sistahbiz Global Network is a business accelerator providing affordable coaching, training, and services options to help Black women build scalable, sellable models and access the back office support, financial and social capital that they need to play big in business.
Think RNR
Think RNR is a branding and strategic solution company based in Denver, Colorado and I've worked with the client for a long time and developed the website using WordPress with a customized theme and undergoing maintenance projects.
PFEC Global
https://www.pfecglobal.com.au/PFEC Global, formerly known as Prime Foreign Education Consultant, is a leading education and migration consultant in Australia and Bangladesh and I've developed their website using WordPress Multisite technology. Used WPBakery Page Builder as the back-end editor.
Sahajaonline
https://sahajaonline.com/Sahajaonline is a custom-coded site built with performance in mind. I used Bootstrap for the layout and Advanced Custom Fields PRO (WordPress plugin) for generating dynamic fields. The site is presently maintained only by me—it has some inbuilt features for session reminding via Cron.
Eternapure
An eCommerce website based on Shopify Advanced, which sells human and animal health-related products in the US. At Eternapure, they distribute health and wellness solutions to help people and animals feel, work, play, and live their best.
Warriors of the Divine
https://warriorsdivine.com/It's an online shop selling hand-crafted cloth items. I've developed it using Shopify and PageFly page builder, adding pixels using Trackify X and optimizing the website to load faster without any issues so the end users can visit the site easily.
Shopify and GMC Work | Solving Discrepancies
WORK DONE
• Diagnosed and resolved Google Merchant Center (GMC) policy violations, including account suspension issues caused by discrepancies in shipping costs and product availability.
• Leveraged the Simprosys Google Shopping Feed app to streamline feed management, ensuring accurate API communication between Shopify and GMC.
• Updated and optimized schema data within the Shopify store, aligning product metadata with GMC requirements to improve data feed accuracy.
• Conducted feed recrawling and synchronization through Simprosys to resolve discrepancies in shipping costs and product availability, ensuring compliance with GMC policies.
• Collaborated with the client to establish a scalable solution for seamless GMC integration and API communication, preventing future suspensions.
• Diagnosed and resolved Google Merchant Center (GMC) policy violations, including account suspension issues caused by discrepancies in shipping costs and product availability.
• Leveraged the Simprosys Google Shopping Feed app to streamline feed management, ensuring accurate API communication between Shopify and GMC.
• Updated and optimized schema data within the Shopify store, aligning product metadata with GMC requirements to improve data feed accuracy.
• Conducted feed recrawling and synchronization through Simprosys to resolve discrepancies in shipping costs and product availability, ensuring compliance with GMC policies.
• Collaborated with the client to establish a scalable solution for seamless GMC integration and API communication, preventing future suspensions.
Education
2010 - 2013
Bachelor's Degree in Computer Science and Engineering
State University of Bangladesh - Dhaka, Bangladesh
Certifications
MARCH 2013 - PRESENT
Zend Certified Engineer
Zend Technologies, Inc.
Skills
Libraries/APIs
WordPress API, Stripe, Google Merchant Center API
Tools
Slack, Sublime Text, Trello, Git, Bitbucket, WPBakery, PageSpeed, Zapier, Jira, Subversion (SVN), Cron, Atlassian, Stripe Checkout, Shopify Plus, ChatGPT, Claude
Languages
PHP, JavaScript, HTML, CSS
Platforms
WordPress, WordPress Theme Design, WooCommerce, Visual Studio Code (VS Code), Amazon, MacOS, Amazon Web Services (AWS), Magento, Drupal, Magento 2, Shopify, OpenCart
Storage
MySQLi, WP Engine, Amazon S3 (AWS S3)
Frameworks
Laravel, CodeIgniter
Other
WordPress Multisite, WordPress Plugins, PSD to WordPress, HTML to WordPress, Elementor, Website Migration, Theme Development, Website Optimization, Leadership, Google Tag Manager, WordPress Rescue, Plugin Development, Cloudflare, Gmail, APIs, Computer Science, Performance, Payment APIs, Payment Processing, PageFly, PSD to Shopify, Shopify Design, GMC, eCommerce, Amazon Marketplace, IT, Cursor AI, Webhooks, High-risk Credit Card Processing
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