const arifin = {
role: "Backend Engineer",
at: "S16 Research Ventures",
based: "East Java, Indonesia · UTC+7",
experience: "6+ years",
builds: ["payment systems", "APIs", "developer tools"],
stack: ["C# / .NET", "Go", "TypeScript", "Rust", "Solidity", "Cosmos SDK"],
// AI agents write more of my code every month, so I spend my time
// where they can't be trusted alone:
focus: ["system design", "security boundaries", "shipping safely"],
writesAbout: ["payments", "smart-contract security", "cryptography", "how LLMs behave"],
};Each one started as a problem in my own week.
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Building something that has to be reliable? Let's talk.





