事例 01contracted · 5.0★
A card matcher that refuses to guess
for a trading-card arbitrage platform (US) · completed June 2026
Cross-marketplace listing matcher against a live product catalog, audited and verified row by row. The matcher abstains rather than mismatches: it commits only when it is sure and routes everything else to a review queue. I built the labeled sample, verified the client's production matcher against it, then designed and measured the backlog drain.
- 99.4% precision on the priority stratum of a 6,190-listing labeled sample measured on the matcher as shipped (about 96.6% across all strata)
- 2,481 backlog listings committed, each landing on exactly the id the audited dry-run proposed; risky cases held for review
- Read-only against production; every write stayed with the client's engineer
“Muhannad is great to work with and is a clear communicator which I value a lot. Will hire him again.”
99.4%
precision, priority stratum, verified