Software & Data Engineer · Co-Founder & Technical Lead at @Xaol-Studio
Informatics at UNAM (FES Cuautitlán) · Google Student Ambassador 2026 · Mexico City / State of Mexico
I design and build deterministic, zero-drift software systems and analytical data pipelines. My work focuses on high-throughput Mexican fiscal auditing (SAT CFDI 4.0 / Anexo 20 / Art. 69-B), vectorized columnar storage (Apache Parquet + DuckDB), macroeconomic econometric engines (Banxico SIE), and sub-second client-side web and mobile applications.
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flowchart LR
subgraph Sources["01 · Data & Fiscal Sources"]
A1["CFDI 4.0 / 3.3 XML Streams"]
A2["Banxico SIE Macro Series"]
A3["POS & Retail Transactions"]
end
subgraph Core["02 · Deterministic Core & Lakehouse"]
B1["Zero-Copy PyArrow & Parquet"]
B2["Embedded DuckDB Vector SQL"]
B3["Integer-Cents & Anexo 20 Math"]
end
subgraph Delivery["03 · Client & Edge Delivery"]
C1["Next.js 16 / React 19 Web Apps"]
C2["React Native + MMKV Mobile"]
C3["Executive Audit & DIOT Exports"]
end
Sources --> Core --> Delivery
| Repository | Architectural Scope | Stack & Verification |
|---|---|---|
sat-data-pipeline |
CFDI XML to Parquet ETL & DuckDB Engine Streams raw CFDI 4.0/3.3 XML batches into Hive-partitioned Apache Parquet ( año/mes) with vectorized SQL KPIs and |
  
|
banxico-series-pipeline |
Macroeconomic Time-Series ETL (Banxico SIE) Harmonizes USD/MXN FIX, 28-day TIIE, UDIS, and INPC series. Computes YoY inflation, Fisher real interest rates ( |
|
pyme-data-analytics |
Retail Data Science & Inventory Optimization RFM customer quintile segmentation, ABC Pareto (80/20) revenue classification, Apriori market-basket lift rules, and Reorder Point (ROP) forecasting. |
|
Statix |
Visual Fiscal Audit & Anomaly Detection Suite Interactive Streamlit & Plotly analytics suite with exact Decimal reconciliation, z-score (.xlsx ledger exports. |
 
|
| Repository | Architectural Scope | Stack & Verification |
|---|---|---|
cfdi-sat-engine |
Zero-Dependency Python CFDI 4.0 Auditor & CLI 100% Python stdlib fiscal engine. Validates Anexo 20 tax equations, RFC syntax, UUID format, and screens SAT Art. 69-B blacklists in |
  
|
cfdi-sentinel |
In-Memory Client-Side CFDI Auditor & DIOT Generator Zero-knowledge browser auditing for .xml and .zip invoice batches. Computes VAT/ISR balances, flags 72h PAC delays, and exports .xlsx workbooks. |
 
|
nomina-matrix |
Net-to-Gross Payroll Solver & IMSS 2026 Matrix Binary search solver converging to exact gross salary ($\pm |
 
|
pyme-manager-core |
Deterministic POS, Inventory & Tax Core (@Xaol-Studio)Integer-cents financial engine preventing IEEE 754 float drift, multi-tier pricing ( RETAIL/WHOLESALE/MECHANIC), and PostgreSQL/SQLite schemas. |
|
| Repository | Architectural Scope | Stack & Verification |
|---|---|---|
Flowday |
Offline-First Productivity Suite & Native Android Widgets Built with React Native 0.76 + Expo SDK 52 (New Architecture), sub-millisecond react-native-mmkv persistence, custom Kotlin AppWidgets, and CI APK releases. |
  |
UniSched-Optimizer |
Combinatorial University Schedule Solver & Local OCR Backtracking CSP solver with geometric table reconstruction ( pdfjs-dist + WebAssembly tesseract.js) and verified UNAM / IPN / UAM datasets. |
  |
mj-cafe |
Specialty Coffee Pre-Order SaaS & Barista KDS (@Xaol-Studio)3NF relational database ( MySQL/SQLite), PHP PDO transactional API, digital loyalty stamp engine, and real-time Kitchen Display System. |
  |
whatsapp-networking-hub |
Zero-Server WhatsApp Community Parser & Directory 100% in-memory FileReader & IndexedDB parser that converts exported .txt community chats into a searchable professional directory. |
  |
rutina-optima |
Biological Performance & Time-Allocation Command Center Sartorial Dark Editorial telemetry dashboard for circadian HGH optimization, V-Taper hypertrophy, and high-output academic/engineering scheduling. |
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- Co-Founder & Technical Lead at XAOL Software Studio — Delivering bespoke transactional systems, POS/inventory engines, and fiscal auditing platforms for Mexican enterprises.
- Google Student Ambassador (2026 Cohort) — Leading technical workshops on AI workflows, modern software engineering, and developer productivity at UNAM.
- B.Sc. in Informatics — Universidad Nacional Autónoma de México (UNAM — FES Cuautitlán).