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Jarrod Wright

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Modeling PayPal's Tiered Dispute Fee With a Trailing-Window Monitor
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Modeling PayPal's Tiered Dispute Fee With a Trailing-Window Monitor

#architecture #backend #fintech #systemdesign
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6 min read
Don't Refund on 'Delivered': Hardening Return Workflows Against FTID Fraud
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Don't Refund on 'Delivered': Hardening Return Workflows Against FTID Fraud

#backend #programming #security
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6 min read
Detecting Mastercard 2-Series Cards: BIN Range Logic That Doesn't Break
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Detecting Mastercard 2-Series Cards: BIN Range Logic That Doesn't Break

#programming #softwaredevelopment #softwareengineering
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6 min read
Detecting Abnormal Keyed-Entry Rates from POS Entry Mode Data
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Detecting Abnormal Keyed-Entry Rates from POS Entry Mode Data

#analytics #data #monitoring #security
1
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6 min read
Building a VAMP Ratio Monitor: Merchant and Portfolio Math in Practice
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Building a VAMP Ratio Monitor: Merchant and Portfolio Math in Practice

#analytics #fintech #security
2
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6 min read
Designing Account Holds for Chargebacks
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Designing Account Holds for Chargebacks

#cybersecurity #stripe #fintech #banking
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4 min read
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