Piotr Delawski is a Senior WordPress Engineer with 11 years of experience building enterprise-grade, high-performance web platforms and leading large-scale WordPress projects for major publishers. Based in Katowice, he blends full-stack skills with a front-end focus—shipping UI/UX and page-speed improvements for sites like Rolling Stone and Variety while contributing to high-profile open-source projects such as Automattic’s Jetpack and Calypso. As a co-founder and CTO of Agency Partners and a former Principal Engineer at XWP, he pairs hands-on coding with product and technical leadership across distributed teams. Notably, his open-source work includes thoughtful UX touches (loading placeholders, animated connect flows) that improve real-world conversion and integration experiences. He holds an M.Sc. in Computer Science and is known for turning complex WordPress VIP requirements into maintainable, performant solutions.
11 years of coding experience
18 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at Politechnika Śląska w Gliwicach
Contributions:5 reviews, 58 commits, 110 PRs in 5 months
Contributions summary:Piotr contributed to the development of UI components for the WordPress.com platform. They implemented the base UI elements for single product offerings, including the creation of new components such as `PlansSingleProducts`, `Header`, and `Product`. The user's commits also involved styling, responsiveness improvements, and integrating feature flags to control the visibility of new features. These changes focused on enhancing the user experience and functionality related to plan management and product offerings within the Calypso project.
Security, performance, marketing, and design tools — Jetpack is made by WordPress experts to make WP sites safer and faster, and help you grow your traffic.
Role in this project:
Front-end Developer
Contributions:21 commits, 26 PRs, 44 pushes in 5 months
Contributions summary:Piotr primarily worked on the front-end aspects of the Jetpack plugin, specifically focusing on the "connect-in-place" feature for connecting WordPress sites. They implemented UI enhancements, including a loading spinner and animation, and addressed CSS issues. The user also worked on integrating the PlanPrice component and adding support for loading placeholders in the single product card for a more user-friendly experience. They also made adjustments to the connect button, handling different connection flows.
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Piotr Delawski - Senior WordPress Engineer at Agency Partners