Shota | engawa-dev

Shota | engawa-dev

SysAdmin & Solo Dev. Native Windows apps

About

👋 Konnichiwa! I'm Shota. I'm a Systems Administrator based in Sapporo, Japan. I spend my days managing corporate networks and my nights coding tools to make that job easier. Why I build: Working in the insurance industry, I couldn't use web-based tools due to strict security compliance. But I still needed efficiency. So I built my own solution—secure, offline, and compliant. No data ever leaves your machine. 🚀 Maker of: - Subnet Ninja: A secure IP calculator for AWS/Azure engineers. - RedactX: (Coming soon...) 🍣 Fun Fact: My avatar is "Engawa" (Flounder fin sushi). Just like good sushi, I believe software should be fresh (fast) and raw (native). Let's connect on X: @engawa-dev

Badges

Tastemaker
Tastemaker
Tastemaker 5
Tastemaker 5
Gone streaking 10
Gone streaking 10
Gone streaking
Gone streaking
View all badges

Forums

Subnet Ninja - Free IPv4. Pro: AWS/Azure/GCP + CIDR split + overlap.

Subnet Ninja is a terminal-style subnet calculator for Windows. Free: fast on‑prem IPv4 subnet math. Pro: AWS/Azure/GCP reserved‑IP aware modes, a CIDR split tree, and CIDR overlap checks.
View more