Andrew Mcmillan is a veteran software engineer and technology leader with decades of experience designing and shipping software across embedded systems, Android, web apps, calendaring standards, and infrastructure. A co-founder of Catalyst IT and long-time contributor to free open-source software (including Debian package maintenance and DAViCal), he blends hands-on C and Go development for embedded devices with strategic architecture and operational leadership. He has led technical teams at startups and major organizations—most recently as Principal Engineer and DevOps lead at Toast and as a trusted adviser at Hub Controls—while also doing technical review for O’Reilly and rigorous due diligence engagements. Based in New Zealand with a background in philosophy, Andrew pairs pragmatic engineering with a thoughtful, systems-level perspective that surfaces non-obvious tradeoffs. Known for mentoring senior engineers and for a wry, curious approach to problem solving, he now operates independently as Chief Contemplator, focusing on projects that combine embedded constraints with open-source ethos.
10 years of coding experience
30 years of employment as a software developer
BA Philosophy, BA Philosophy at Victoria University of Wellington
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