Kunto Aji. K (Aji)

Software Engineer • Security Specialist • Creator of KAK Labs

Hi, I’m Kunto Aji.K (Aji), a Senior Security Engineer at NinjaOne, based in Indonesia. I focus on application security, software engineering, and AWS.

Outside of work, I spend time with my family and pursue interests in blogging, software engineering, application security, and iPhone photography.

Projects

• KAK Labs: My technical blog. https://kaklabs.com

• KAK Tools: A collection of my personal tools. https://tools.kaklabs.com

Personal

• 👶 Proud parent
• 💻 Programming Languages: Ruby (primary), Python, Javascript, C#, Golang, Java
• 🛡️ Application security and AWS enthusiast
• ✍️ Enjoy writing about technology, security, and programming
• 📷 iPhone photography enthusiast

Other Interests & Ventures

• 🛒 I occasionally sell my preloved and secondhand items at Fronteers.id
• 🪙 I also run a small business buying and selling Antam gold bars: Lantakan Emas

Books

Some of my favorite books:

• Rework by Jason Fried & David Heinemeier Hansson
• It Doesn’t Have to Be Crazy at Work by Jason Fried & David Heinemeier Hansson
• The Staff Engineer’s Path by Tanya Reilly
• The Software Engineer’s Guidebook by Gergely Orosz

Connect

• GitHub
• Medium
• LinkedIn
• 📧 Email: kontak@kaklabs.com

All technical writing at kaklabs.com →

Last updated: May 2026