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Projects

Financial systems, automation pipelines, and engineering case studies.

A selection of systems I built around automation, data processing, integrations, and operational workflows. Some projects are private due to company policies, but documented here as high-level case studies.

Focus

Financial systems, accounting automation, process automation, and system integration.

Project Types

Private production systems, internal platforms, and public demo projects.

Approach

Clean architecture, practical engineering, and measurable operational impact.

Production-oriented automation and business systems built for real operational workflows. Source code may be private.

Featured

SPED Cross-Check Automation

Fiscal validation workflow for accounting operations

PrivateCase Study

Automation system that parses SPED tax files, collects government fiscal data, cross-validates multiple datasets, and generates Excel reconciliation reports for accounting workflows.

Impact Reduced up to ~3 hours of manual work per analyst through automated collection, validation, and reconciliation.
PythonSPED ParsingWeb ScrapingExcel Reports

Payroll Accounting Mapper

Automated payroll accounting mapping for multi-client accounting firms

PrivateCase Study

Full-stack web application that reads payroll Excel reports (pay stubs, vacation and 13th salary provisions), resolves accounting mappings by company and cost center, and exports consolidated journal entries formatted for direct import into the accounting system (FPA-ELEVOR).

Impact A process that took hours per company in Excel now completes in seconds — with full traceability of mapped and unmapped payroll events across the entire client portfolio.
PythonFastAPIasyncpgPostgreSQLNext.jsTypeScriptDockerPM2

NFSe XML Automation Pipeline

Government API integration, XML processing, and audit workflows

PrivateCase Study

Automated pipeline for downloading NFSe XML documents through government APIs, organizing files by client and period, extracting invoice data, and generating Excel reports for auditing and reconciliation.

Impact Standardized document organization and reduced manual verification effort across multi-client invoice workflows.
PythonAPIsXMLData ProcessingExcel Reports

Digital Certificate Compliance Monitoring

Certificate metadata extraction, validation, and compliance visibility

PrivateCase Study

Automation workflow that scans client directories, extracts certificate metadata, validates integrity and passwords, and presents compliance status through internal dashboards.

Impact Improved visibility over certificate validity and reduced operational risk in certificate compliance monitoring workflows.
PythonData ProcessingValidationDashboardsNext.js