6d ago · 9 min read · I've reviewed enough Go backend test suites to notice a pattern. The services with the most unit tests are often the ones with the most production incidents. Not because unit tests cause incidents — because the teams writing unit tests and calling it...
Join discussionApr 8 · 8 min read · Here we go again. This is my second post in a series documenting my transition into Backend + ML Systems Engineering. The first post covered building a fraud detection model from scratch. This one co
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Mar 30 · 11 min read · Update — April 2026: Since publishing this post, I iterated further on the model. I upgraded from Random Forest + SMOTE to XGBoost, achieving 85% recall and 0.969 ROC AUC in 0.92 seconds, without any
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Mar 26 · 10 min read · Series: Backend Engineering Fundamentals · Post 07 of 07 Level: Intermediate · Read time: ~9 min It's 2am. An alert fires. Your service is down. You open your dashboard: CPU is fine, memory is fine.
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