Jeffrey

Jorgensen

I build the part of a fintech product where a wrong number costs money. Payment rails and custodial wallets across Bitcoin, Ethereum/ERC-20, Tron/TRC-20 and TON. Double-entry ledgers that reconcile against the chain. Pipelines that turn bank statements, invoices and credit files into decisions, with every figure carrying its source. What I have shipped: a ledger core in Go reused by two unrelated products, which is the real test of whether an accounting model is right; a payout rail where every batch dry-runs first, showing the fee and the exact debit per row before anything is sent; a financial-model backend in daily production with 313 endpoints and 9,333 tests, maintained by one person. Send me how your reconciliation works: a diagram, three sentences, or the list of systems money moves between. I reply in writing with the specific places it will drift and what each one costs to fix. Free, no call, usually within two days.