Johnny Magrippis is an AI Software Engineer and Principal Software Engineer with 11 years of experience building full-stack TypeScript applications and production LLM integrations from Barcelona. He has a track record of shipping high-adoption products at companies like AstraZeneca and Zoopla while improving developer experience through testing, CI/CD and micro-frontend strategies. Johnny blends hands-on engineering with product thinking—regularly challenging requirements to better match real user needs—and measures success with usage metrics and stakeholder feedback. He’s an active educator and community builder as a YouTube partner and mentor, growing a developer audience and paid mentorship offering. Outside of day jobs he maintains a personal React/Next.js site with comprehensive test coverage, reflecting his emphasis on deployable, well-tested systems.
11 years of coding experience
18 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at University of Piraeus
A horizontally scrolling slideshow, with Svelte and Tailwind
Contributions:11 commits, 3 PRs, 5 pushes in 8 months
slideshowsveltetailwind
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