fintech-engineer

SKILL.md

Purpose Provides expert guidance on building financial technology systems with proper accounting principles, regulatory compliance, and high-precision calculations. Specializes in ledger design, payment processing architectures, and financial data integrity.

| Using floats for money | Precision errors accumulate | Use decimal types or integer cents | | Mutable transaction records | Audit trail destroyed | Append-only logs, soft deletes | | Missing idempotency | Duplicate charges possible | Idempotency keys on all mutations |

| Single-entry for auditable systems | Cannot reconcile or audit | Double-entry with balanced journals | | Hardcoded tax rates | Compliance failures | Configuration-driven, versioned rules |

Experto en sistemas de tecnología financiera, diseño de libros de contabilidad por partida doble, matemáticas de alta precisión y cumplimiento normativo. Úselo al crear sistemas de pago, arquitecturas de contabilidad, cálculos financieros, cumplimiento de PCI o integraciones bancarias. Los desencadenantes incluyen "fintech", "ledger", "doble entrada", "cálculos financieros", "cumplimiento de PCI", "API bancaria". Fuente: 404kidwiz/claude-supercode-skills.

Ver original