Thomas Shellberg

About Thomas Shellberg

Thomas joined Progressus in 2025 and builds WooCommerce features for our larger store clients, often running a project largely on his own from scoping to launch. For Mighty Kids he built a customer-blocking system that stops repeat fraudsters without slowing down checkout, an upsell analytics dashboard built on its own database tables that answers queries around 100 times faster than standard WooCommerce analytics, and a Black Friday sale with in-cart upsells that raised average order size by 12%.

Before Progressus he spent more than ten years at Automattic. He joined in 2014 as a WooCommerce Happiness Engineer, handling escalated support cases for WooCommerce.com customers and working with engineers to track down and report bugs, then moved into engineering in 2019. As a software engineer he worked on WooPayments and WooPay, was a founding member of the team behind the Woo AI plugin, which brought AI into product creation for nearly ten thousand WooCommerce stores, and built AI features for the WordPress.com AI site builder that lifted conversion by 5–20% compared with the existing onboarding flows.

Thomas lives in Germany with his wife and daughters. On the side he builds Emberglow, a story-driven mobile game for iOS and Android in which your hero’s quest only moves forward while your phone is locked. He also produces music, shares his photography on Unsplash and reads a lot.