Ledger integrity under agent-speed traffic
Netting hid $32,732 (46%) of $71,570 gross error; a retry with a regenerated idempotency key was caught 0 of 53 times and is 93% of undetected dollar-hours.
Read moreProjects
Public, runnable projects on GitHub, followed by case studies.
Public work on GitHub
Payments, fraud, reconciliation, metric definitions and measurement. Each one has its code and full write-up on GitHub.
Marketplace payout reconciliation
122,810 orders; daily checks fire 31 of 31 days on a clean book; a fee-on-tax bug passes all reconciliation until fees are recomputed from policy.
Read moreMerchant freeze economics
60,000 merchants; the 98%-recall freeze policy nets -$9.1M versus freezing nobody; cutting review time from 3 days to 1 is worth +$4.5M, more than a 2-point AUC gain (+$3.3M).
Read moreQueue economics for a fraud and compliance review team
Alert recall 85.1% to 80.0%, dollar recall 76.8% to 93.0%, total cost -54%.
Read moreValidating the LLM judge that decides what you bill for
The LLM judge overstates resolution by 5.2 points overall and +19.4 in one category; the judge-only confidence interval covers the truth 0% of the time.
Read moreA trust harness for a semantic layer
40 of 90 queries (44%) have no single answer; one revenue question returns $149M, $136M or $107M depending on the join.
Read moreAI spend intelligence from a raw card feed
231 card descriptors resolved to 15 vendors; metered spend is not callable before about day 12 of the month, and is plus or minus 100% at day 5.
Read moreSilent-failure detection for a distributed capture fleet
Row counts catch 18 of 43 failures, content checks catch 43 of 43; bad device-days fall from 1,097 to 58.
Read moreDoes on-time delivery make customers come back?
101,684 JD.com orders; the definition of "on time" flips the effect on 21-day repurchase from -0.38 to +0.51 points.
Read moreCase studies
Smart Retail Operations Platform
An edge computer-vision and data platform that turns in-store CCTV into retail operations data: visitor counting, task management and real-time violation detection on devices inside each branch.
Read moreSupervised Job Application Agent: human-in-the-loop application automation
A supervised agent that finds, scores and tailors job applications but stops before final submission, so every sensitive decision stays with the applicant.
Read morePredicting the Availability of Product in a Supermarket, Ultimate Goal to Scale it to the Whole Country
A CatBoost model that predicts product availability across stores from historical stock data, to reduce stockouts.
Read moreUsed Car Market Competition Analysis for Multiple Used-Car Business Ventures
Scraped used-car listings and built an interactive Tableau dashboard on pricing, models, mileage and regional trends.
Read moreOptimizing Legacy SQL Infrastructure for High-Volume Fintech Transaction Processing
Replaced slow legacy materialized views with partitioned, indexed tables so transaction reports and lookups stopped timing out.
Read moreBuilding Comprehensive Ops Database for Terminal Performance Monitoring and Fee Collection Optimization
A centralized operations database that tracks payment-terminal health and fee collection, so malfunctioning terminals and uncollected fees are caught early.
Read moreEnd-to-End Customer Churn Prediction System with Automated Retention Workflows
A churn prediction pipeline that scores at-risk customers and routes tailored retention actions to the contact center, business and onboarding teams.
Read moreAutomated SLA Payout Monitoring Dashboard with Bank Reconciliation and Proactive Merchant Communication
An SLA dashboard and automated bank reconciliation for daily merchant payouts, with exception handling and proactive merchant notifications.
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