John Harris is a seasoned technology leader and CTO based in San Francisco with over 10 years of experience delivering massively scalable software and digital products for startups and global brands. He combines deep systems design and implementation expertise—from high-availability PACS and enterprise imaging to cloud-native SaaS—with a practiced ability to translate business strategy into actionable technical roadmaps. At SPAN he leads technical strategy, engineering delivery, and operations while mentoring elite teams; previously he built and integrated large development organizations at Philips Healthcare, tripling team sizes and passing FDA audits. Known for selecting pragmatic architectures and methodologies that balance risk, schedule, and ROI, he has repeatedly turned stalled projects into reliable, revenue-driving systems. Not obvious from titles alone: he has hands-on experience launching and scaling mission-critical, regulated healthcare services with 99.99% uptime SLAs and sub-second retrieval goals. He blends executive-level strategy with the credibility of a builder who still shapes architectures and delivery pipelines.
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