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alejandrofrank/README.md

Alejandro Frank

Data engineer building market intelligence tools and interactive products. Based in Madrid.

Portfolio · Experience · LinkedIn

Selected work

Project What to explore
Bakiano A live Venezuelan market-data product: historical prices, its architecture, and the decisions behind the pipeline.
Catalog Match Lab A visual lab for matching messy product names across catalogs, with explainable decisions, editable synthetic data, and CSV import.
BigQuery Query Guard A runnable JavaScript query boundary demonstrating authorization, scoped caching, dry runs, and query byte limits.
Interactive portfolio A live Cloudflare Workers site with project walkthroughs, a career timeline, and GitHub activity.
ASCII art experiments Image-to-text art with color palettes, character sets, and side-by-side visual examples.

Try the code: Catalog Match Lab and BigQuery Query Guard both include local, interactive demos. Their offline modes need only Node.js 22+ and run without cloud credentials or API keys.

Building Bakiano

Bakiano brings published prices and listings from Venezuelan supermarkets, retailers, and property platforms into one workspace for research and tracking changes.

I build the systems behind it: collection jobs, a historical warehouse, currency-aware transformations, AI enrichment, and the application that makes the data useful.

The product source is private. Catalog Match Lab and BigQuery Query Guard are public, standalone examples drawn from the matching and query-control problems behind it.

Bakiano's public product and observed market prices

Read the engineering case study →

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  1. bakiano-showcase bakiano-showcase Public

    Public engineering case study of Bakiano: Venezuelan market data, historical prices, and an AI analyst. Product source is private.

    JavaScript

  2. catalog-match-lab catalog-match-lab Public

    A visual lab for matching messy product names across catalogs. Synthetic data, explainable identity checks, and an optional Jev adapter.

    JavaScript

  3. bigquery-query-guard bigquery-query-guard Public

    A BigQuery query boundary with authorization, scoped caching, dry runs, engine-level byte limits, and an interactive offline sandbox.

    JavaScript

  4. alejandrofrank-eng alejandrofrank-eng Public

    Interactive engineering portfolio: live projects, career timeline, and technical walkthroughs. Built with Hono on Cloudflare Workers.

    TypeScript

  5. art_exploring art_exploring Public

    Image-to-ASCII art experiments in Python: colored HTML, multiple character sets, and side-by-side visual examples.

    HTML