Diaz Freire S.A.

Ecuador E-Invoicing API

Electronic invoicing API for Ecuador. Signs XML invoices, manages products, checks legal status, and generates authorization numbers for tax compliance.

Status

Completed

Year

2024

Timeline

5 months

Project Preview

Technologies Used

Node.js Nest JS XML Digital Signature Microservices PostgreSQL Redis

Key Features

XML invoice generation with digital signature validation

Real-time tax authority integration (SRI Ecuador)

Automated authorization number generation

Product catalog management with tax classification

Legal status verification for business entities

Comprehensive audit logging and reporting

Challenges & Solutions

Implementing complex XML digital signature validation according to Ecuador tax laws

Ensuring 99.9% uptime for critical tax compliance operations

Handling high-volume invoice processing during peak business periods

Maintaining synchronization with frequently changing tax regulations

Impact & Results

Automated electronic invoicing process and ensured 100% tax compliance, reducing manual processing time by 80%.

My Role

Backend Developer & Tax Compliance Specialist

Private Project