Qamar Ul Din
Hamza
Building scalable WordPress & WooCommerce solutions, custom plugins, and AI integrations for high-growth businesses.
Building the plugins
businesses depend on
I build the WordPress plugins and WooCommerce features that make businesses run — not the ones that ship in an afternoon, but the ones that process millions in monthly revenue and have to work every time.
Specialising in custom plugin architecture, complex WooCommerce systems, headless WordPress with Next.js, AI automation, and API integrations. 147 projects delivered over 10 years — each built from a blank file.
I work directly with founders and product leads, independently. You get working software, clean code, and documentation — not status meetings.
Featured Projects
Three of 18 engagements — real results, built from scratch.
Services
Six specialisations — from deep WooCommerce work to AI automation.
Custom WordPress Plugin Development
Production-hardened plugins built to your exact spec — custom post types, REST endpoints, admin UIs, background jobs, and third-party integrations.
- —Custom post types & taxonomies
- —WP REST API endpoints
- —Admin dashboard UIs
- —Background job processing
WooCommerce Custom Development
Deep WooCommerce customisation: payment gateways, subscription logic, B2B pricing, dynamic rules, custom checkout flows, and performance tuning.
- —Custom payment gateways
- —Subscription & billing logic
- —B2B / wholesale features
- —Checkout flow redesign
Headless WordPress Development
Decoupled WordPress backend with a blazing-fast Next.js or Astro frontend. Full editorial control in the WP dashboard, modern performance and developer experience up front.
- —Next.js 14 App Router or Astro
- —WP REST API or WPGraphQL
- —ISR / SSG for performance
- —Block editor preserved
Have a project in mind?
Fixed-price or hourly. Response within 24 hours.
Testimonials
Real feedback from clients on Upwork — all verified, all public.
“Qamar was always respectful, professional, and highly committed throughout the project. He put significant effort into the technical build, communicated consistently, and remained cooperative throughout the entire process. I appreciate the work he contributed and his continued willingness to support the transition and handoff process for the team.”
“Qamar is a great developer. worked on our shopify website custom theme and helped us bring it to production.”
“I run a new nonprofit (LuxSpei) dedicated to supporting individuals battling cancer, and our budget for freelancers is quite limited. Despite this, Qamar, with his remarkable skills, graciously offered his assistance. His speed and precision in delivering exactly what we needed are unparalleled compared to any other freelancers I've worked with - and that has been many. Impressively, he completed the first project within hours of it being posted, achieving flawless results. I am eagerly looking forward to collaborating with him again VERY soon!”
“Qamar was so helpful and explained everything he was doing so clearly. He reduced the number of hours required to complete once he'd looked at my website, and went above and beyond what I expected. I feel like I have a brand new site.”
“Qamar is a solid developer and exception Wordpress developer. We have asked him to help on a few extremely complex projects and each time he delivers. We highly recommend Qamar and are gearing up another project to have him help us further. Solid developer”
“I have worked before with Qamar and he is always my first choice when I have a project. He has always provided quality work, he has always solutions and often as we move forward to a project, new issues come up and we expand the scope. Qamar has always been open to changes in work, he is always available for us.”