John Sly | Community Days
SPEAKER

John Sly
Lead Application Developer
I am a software developer and data engineer specializing in large-scale ETL systems and healthcare data integration. With over a decade of experience in PHP, PostgreSQL, and enterprise data workflows, I bridge legacy architectures with modern, automated solutions that improve reliability and transparency. My talks focus on practical engineering—what really works when moving complex data at scale and finally delivering something impactful at the end.
SESSIONS & EVENTS
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