Mark O'sullivan is a founder and seasoned software leader with 16+ years building scalable web and media systems, from creating the open-source Vanilla Forums to leading engineering teams at Twitter and Adobe. He combines hands-on backend and full-stack development with product and company-building experience—having worn roles from CEO to head of sales, design, and recruiting while scaling Vanilla into an enterprise offering. At Twitter he led partner-facing media products like SnappyTV and video.twitter.com, and at Adobe he managed teams behind Creative Cloud Libraries, shaping collaboration tools used across Adobe’s ecosystem. Today he applies that engineering rigor to financial markets as the founder of Improve Your Trading, where he sells trading tools driven by software automation and indicators. Based in Walnut Creek, he brings an uncommon blend of trading savvy, deep backend expertise (notably core commits to the Vanilla codebase), and proven leadership in both startups and large tech organizations. Outside work he’s a proud husband and father who values humor and family time.
16 years of coding experience
23 years of employment as a software developer
BA English, BA English at University of Saskatchewan
Vanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community.
Role in this project:
Back-end Developer
Contributions:1506 commits in 2 years 10 months
Contributions summary:Mark's commits focus on core functionality within the Vanilla forums software. Their work includes implementing and modifying database interactions, such as saving and retrieving user data and conversation-related information. They also made bug fixes related to comment counts and email notifications, indicating a deep understanding of the backend and core application logic, demonstrating back-end development skills.
Contributions summary:Mark primarily contributed to the development of plugins and add-ons for the Vanilla Forums platform, as indicated by the repository's description and the nature of the commits. The user worked on a diverse range of features, including a color picker plugin, modifications to the mobile theme, SEO improvements, and a plugin for community reporting. Additionally, the user addressed bugs and implemented user interface enhancements, showcasing a broad skill set across frontend and backend development.
discourseadd-onsvanilla-forumsaddonsforum
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