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Hi, I'm Qamar Ul Din Hamza, a senior WordPress plugin developer and headless WordPress architect with 10+ years of experience building custom plugins, headless WP architectures, and AI workflow automation systems. I founded Stack Mesh, a web development agency serving clients in the US, UK, Europe, and Australia. My work on Upwork earned Top Rated Plus status with a 100% job success score across 147 projects and $250K+ in earnings. I have delivered 30+ custom plugins in production across booking platforms, membership systems, dashboards, and ecommerce stores, including a Google Maps store locator and cross-location product availability tracking.…Hi, I'm Qamar Ul Din Hamza, a senior WordPress plugin developer and headless WordPress architect with 10+ years of experience building custom plugins, headless WP architectures, and AI workflow automation systems. I founded Stack Mesh, a web development agency serving clients in the US, UK, Europe, and Australia. My work on Upwork earned Top Rated Plus status with a 100% job success score across 147 projects and $250K+ in earnings. I have delivered 30+ custom plugins in production across booking platforms, membership systems, dashboards, and ecommerce stores, including a Google Maps store locator and cross-location product availability tracking.

Qamar Ul Din Hamza

Web Developer, Full Stack Developer, Back-End Developer, +3

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Hi, I'm Qamar Ul Din Hamza, a senior WordPress plugin developer and headless WordPress architect with 10+ years of experience building custom plugins, headless WP architectures, and AI workflow automation systems. I founded Stack Mesh, a web development agency serving clients in the US, UK, Europe, and Australia. My work on Upwork earned Top Rated Plus status with a 100% job success score across 147 projects and $250K+ in earnings. I have delivered 30+ custom plugins in production across booking platforms, membership systems, dashboards, and ecommerce stores, including a Google Maps store locator and cross-location product availability tracking.…Hi, I'm Qamar Ul Din Hamza, a senior WordPress plugin developer and headless WordPress architect with 10+ years of experience building custom plugins, headless WP architectures, and AI workflow automation systems. I founded Stack Mesh, a web development agency serving clients in the US, UK, Europe, and Australia. My work on Upwork earned Top Rated Plus status with a 100% job success score across 147 projects and $250K+ in earnings. I have delivered 30+ custom plugins in production across booking platforms, membership systems, dashboards, and ecommerce stores, including a Google Maps store locator and cross-location product availability tracking.

Available to hire

Hi, I’m Qamar Ul Din Hamza, a senior WordPress plugin developer and headless WordPress architect with 10+ years of experience building custom plugins, headless WP architectures, and AI workflow automation systems.

I founded Stack Mesh, a web development agency serving clients in the US, UK, Europe, and Australia. My work on Upwork earned Top Rated Plus status with a 100% job success score across 147 projects and $250K+ in earnings. I have delivered 30+ custom plugins in production across booking platforms, membership systems, dashboards, and ecommerce stores, including a Google Maps store locator and cross-location product availability tracking.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Panjabi, Punjabi

Fluent

Urdu

Fluent

Work Experience

Senior WordPress Plugin Developer at Upwork (Remote)

January 1, 2017 - Present

Top Rated Plus on Upwork with a 100% job success score across 147 projects and $250K+ in total earnings. Redesigned a WooCommerce checkout flow to increase conversions by 40% and migrated 5,000+ SKUs from WooCommerce to BigCommerce with zero data loss. Delivered headless WordPress projects for Gatik AI (US autonomous vehicle company) and Open Bank (German open banking provider) using Next.js and ACF Pro. Built 30+ custom plugins currently live in production across booking platforms, membership systems, analytics dashboards, and ecommerce stores.

Co-Founder & Tech Lead at Themes Mate (Remote)

February 1, 2017 - December 1, 2020

Co-founded a commercial WordPress theme and plugin business. Responsible for all technical architecture including PHP template hierarchies and Gutenberg block-based systems built on ACF Pro. Shipped commercial WordPress themes to paying customers, covering Shopify Liquid templates, Elementor custom widgets, Generate Blocks-based systems, and WooCommerce integrations.

WordPress Developer at Five rr (Remote)

November 1, 2015 - Present

Delivered 250+ web development projects covering WordPress plugin development, WooCommerce customization, and PHP backend systems. Maintained 5-star ratings with repeat clients across the US, UK, and Europe.

Senior WordPress Plugin Developer at Upwork

February 1, 2017 - Present

Senior WordPress plugin developer delivering 147 projects with $250K+ in earnings across the platform. Achieved 100% job success score over 10+ years. Redesigned a WooCommerce checkout flow that boosted conversions by 40% and migrated 5,000+ SKUs from WooCommerce to BigCommerce with zero data loss. Delivered headless WordPress projects for Gatik AI and Open Bank Project using Next.js and ACF Pro. Built 30+ custom plugins in production across booking platforms, membership systems, analytics dashboards, and e-commerce stores. Developed a WooCommerce store locator with Google Maps integration and multi-location product availability tracking.

Co-Founder & Tech Lead at Themes Mate Remote

February 1, 2017 - December 31, 2020

Co-founded a commercial WordPress theme and plugin business — responsible for all technical architecture including custom theme frameworks using PHP template hierarchy and Gutenberg blocks built on ACF Pro. Shipped commercial WordPress themes to paying customers, covering Shopify Liquid templates, Elementor widgets, Generate Blocks-based systems, and WooCommerce integrations.

WordPress Developer at Fiveerr Remote

November 1, 2015 - Present

Delivered 250+ web development projects covering WordPress plugin development, WooCommerce customization, and PHP backend systems — maintaining 5-star ratings with repeat clients in the US, UK, and Europe.