Posts
All the articles I've posted.
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BNPL From Scratch: Underwriting, Disbursement, Collections
Building a buy-now-pay-later product end to end and selling it to banks. The credit model is the easy part. Disbursement, reconciliation, and collections are where it lives or dies.
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Fraud Detection at Sub-200ms: The Latency Budget Nobody Talks About
Real-time fraud scoring that lives inside the payment authorization path has a tiny latency budget, and a slightly worse model that fits it beats a better one that does not.
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A Forecasting Ensemble That Actually Ships
A demand-forecasting ensemble (a classical statistical model, a sequence model, and gradient boosting) that took accuracy far enough to cut inventory hard, plus the boring data problems that mattered more than the model.
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Llama 2 Is Here. Should You Self-Host?
The week Llama 2 dropped, half my inbox asked whether to pull inference in-house. The break-even math, the GPU scarcity, and the on-call tax nobody puts in the spreadsheet.