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whoami

Software and Security • Distributed System

I'm rhf, a security software engineer from Indonesia. I go by “asterr” online and have a strong interest in distributed systems—especially reliability, performance, and security. I enjoy optimizing systems under tight constraints and play CTFs from time to time

Working Experience

2025 － 2026

Tiket.com

Software Engineer (Backend)

Worked on Flight backend systems— modernizing and optimized existing Java services (performance, concurrency, resource usage), contributed to post-purchase features, and drove adoption of an AI-first approach to Java development and migration

Worked on Flight backend systems— modernizing and optimized existing Java services (performance, concurrency, resource usage), contributed to post-purchase features, and drove adoption of an AI-first approach to Java development and migration

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Projects

Ailurus

Attack & Defense CTF platform

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Media over QUIC

Partially Reliable Media Streaming over QUIC

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Mercari Sniper

Discord-integrated mercari.jp sniper bot

Let’s Have a chat!

Find me across the web

Always open to chat and collaboration, 遠慮しないで！