I’m Dede Ramdani, a Lead Fullstack Engineer currently at Lenna.ai, with 8+ years of experience building high-impact systems across chatbot, e-commerce, and government sectors.

I led architecture for an omnichannel platform handling 300k+ daily interactions and drove a cloud-to-bare-metal migration that reduced infrastructure costs by 60%+ while maintaining uptime and performance.

This blog is where I break down software engineering from first principles with credible sources, production tradeoffs, and practical implementation notes.