fintech-engineer

Design fintech systems with double-entry ledgers and regulatory compliance.

8|11|Updated Feb 15, 2026
One-click install
npx skills add https://github.com/belokonm/claude-supercode-skills --skill fintech-engineer-belokonm
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fintech-engineer
Source: https://github.com/belokonm/claude-supercode-skills/tree/main/fintech-engineer-skill
Command: npx skills add https://github.com/belokonm/claude-supercode-skills --skill fintech-engineer-belokonm

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Financial technology projects often struggle to design and implement auditable ledgers while maintaining regulatory compliance. This skill provides expert guidance for building robust payment architectures, precise financial calculations, and governance controls that ensure integrity and traceability.

Core Features & Use Cases

  • Double-entry ledger design: Create auditable journals, balance checks, and immutable audit trails.
  • Regulatory compliance guidance: PCI-DSS, SOX, PSD2 considerations across payments and banking APIs.
  • High-precision financial calculations: Use decimal types and currency-aware math to avoid rounding errors.
  • Use Case: Build a PCI-compliant payment workflow with multi-currency settlement and automatic reconciliation.

Quick Start

Provide a detailed fintech design plan for a PCI-compliant payment system with double-entry ledgers.

Frequently Asked Questions about fintech-engineer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design a double-entry ledger for a payment system?

Double-entry ledger design for a payment system requires auditable journals, strict balance checks, and immutable audit trails. This ensures every transaction is traceable and maintains financial integrity across all accounts.

What's the best way to handle multi-currency settlement and reconciliation?

Handle multi-currency settlement and reconciliation workflows using high-precision decimal types and currency-aware math to avoid rounding errors. Automatic reconciliation pipelines match transactions end-to-end across different currencies.

How do I ensure PCI-DSS and SOX compliance in fintech architecture?

Ensure PCI-DSS and SOX compliance in fintech architecture by integrating regulatory controls and governance checks into payment pipelines and banking APIs. This maintains traceability and adherence to financial regulations.

When do I need to use decimal types for financial calculations?

Use decimal types for financial calculations when building precise ledgers and multi-currency settlements. Currency-aware math prevents floating-point rounding errors that compromise audit trails and regulatory compliance.

Can I use this approach for banking API integrations and PSD2 compliance?

Yes, this approach supports banking API integrations and PSD2 compliance considerations. It provides the necessary regulatory guidance and architectural patterns for secure, auditable financial technology systems.

Why does my payment reconciliation workflow have balance check failures?

Payment reconciliation balance check failures often stem from floating-point rounding errors instead of precise decimal types. Implementing double-entry ledger designs with immutable audit trails resolves these discrepancies.