Ronald Macdonald is a managing partner and cross-border investor with a decade of experience building and acquiring companies across software, construction, and hospitality, currently based in Las Vegas. He leads MacDonald Investment Group and Stinson Built, blending hands-on operational leadership in luxury construction with strategic M&A and capital-raising for businesses with EBITDA of $500k+. A former CTO and security engineer with roots in software QA and test automation—contributing acceptance tests to a major WordPress plugin—he brings technical rigor to due diligence and portfolio operations. Ronald mentors startups from New Jersey to South Africa and serves as an international business ambassador, signaling a global network and comfort with complex, location-agnostic deals. He balances legacy preservation and employee stability with growth-driven investment, pairing craftsmanship-level attention to detail with entrepreneurial scale.
10 years of coding experience
16 years of employment as a software developer
MBA, MBA at Universidad Isabel I
Bachelor of Science (B.S.), Religion/History, Bachelor of Science (B.S.), Religion/History at Eastern New Mexico University
Contributions:10 commits, 13 PRs, 5 pushes in 4 months
Contributions summary:Ronald primarily focused on adding and modifying acceptance tests for the WordPress plugin. They added new tests for creating and modifying organizers, venues, categories, and tags within the Events Calendar plugin. Additionally, they modified existing tests to verify content on welcome and update pages, while also refactoring and debugging datepicker tests. These changes suggest a focus on improving the quality and reliability of the plugin through automated testing.
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Ronald Macdonald - Managing Partner at Stinson Built