Dale Du Preez
South Africa
Summary
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RockstarDale Du Preez is an experienced software engineer and product-minded team lead with over a decade building healthcare and consumer web products, from InterSystems’ HealthShare Personal Community to WordPress.com features at Automattic. He combines deep backend expertise—especially SQL optimisation on the InterSystems Caché/IRIS stack and data integration messaging—with hands-on full‑stack work shipping user-facing systems like WordPress.com Professional Email and Woo Express. At Automattic he led multiple product engineering teams and ran two distinct business lines exceeding $5M ARR, showing a rare blend of technical delivery and commercial ownership. An active contributor to flagship open-source projects such as Jetpack and wp-calypso, he improves both UX and platform integrations, often working across front-end and API layers. Based in South Africa, he’s known for pragmatic execution, turning complex interoperability and scaling challenges into reliable, shipped products.
11 years of coding experience
Zulu, Afrikaans, English
Github Skills (15)
wordpress10
php10
javascript10
domain-name10
front-end-development10
react10
redux10
plugin10
integrations9
emailjs9
back-end-development9
e-mail9
nodejs9
caching8
testing7
Programming languages (4)
Github contributions (5)
Automattic/wp-calypso
Oct 2019 - Jan 2023
The JavaScript and API powered WordPress.com
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1260 reviews, 262 commits, 551 PRs in 3 years 3 months
Contributions summary:Dale contributed extensively to the `wp-calypso` repository, primarily focused on features related to domain management and professional email. The user implemented functionality for adding "Request Transfer" buttons, general-purpose back flags, and support for the `inbound_transfer_supported` flag, suggesting involvement in both front-end and back-end aspects. Further contributions include code modifications for the email comparison page, including features for A/B tests, and for the email plan settings, while also participating in a new security checkup feature by integrating various navigation items.
apireactwordpressjavascriptes6
Automattic/jetpack
Apr 2022 - Jan 2023
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:Full-stack Developer
Full-stack DeveloperContributions:233 reviews, 30 commits, 55 PRs in 8 months
Contributions summary:Dale primarily focused on enhancing the Jetpack plugin's features, implementing changes to sharing functionalities, and improving the user experience. They worked on refactoring the email sharing feature by switching it to use mailto links and made modifications to the sharing-sources.php file. Additionally, the user contributed to the podcast feed fetch mechanism and added a filter to customize cache timeouts. Further contributions involved updating the Calendly block customization link and correcting Jetpack carousel data enrichment.
reactexpertswordpressphpsecurity
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