I work on backend systems — mostly payment infrastructure. Integrating with PSPs, handling virtual accounts, reconciliation, and the kind of details where one mistake means real money actually disappears.

I’m not an industry expert, and I’m not selling a course. This is where I write down what actually happens — what I understand, what I don’t, and the parts I still check by hand even when AI sounds completely sure of itself.

• 🔧 Real problems from PSP integration — HMAC signing, permission bugs vs signature bugs, idempotency.
• 🤖 How I work with AI in high-stakes code — where I trust it, where I never do.
• 📖 Occasionally something that has nothing to do with payments at all.

Find me on GitHub, LinkedIn, or by email.