diata0210

Backend Engineer at Bengo4.com (Tokyo). Writing about PHP, AWS, system design and real-world lessons.

Backend · System Design · Database

Tech is not about solving problems. It's about choosing the price to pay.

A perspective on trade-offs, AI, and practical decision-making.

I thought I was building a resilient system. I was actually overengineering a problem that didn't exist.

When Faster Queries Slowly Kill Your Database