Data Engineer atAbout
I'm a Data Engineer at Astrafy in Madrid, where I build data platforms and data products on Google Cloud with dbt, BigQuery, Airflow, and Terraform. I'm Google Cloud certified as a Professional Data Engineer and Professional Cloud Architect. Before that I did BI for the Spanish Ministry of Defense, SQL-heavy consulting at Minsait, and machine learning at Red Eléctrica's innovation lab.
I studied Mathematics, and I still approach problems the same way: understand the structure first, then build. Lately that means building a lot outside work too: a certification prep SaaS, the ML behind a hackathon financial-health engine, a personal finance dashboard, and a website for a small fashion brand.
I'm most drawn to where engineering meets product and startups: figuring out what's worth building and getting it working end to end. Outside of that, it's music, economics, literature, and too many essays.
Now
Building DataForge
Taking my certification prep app from a personal study tool to a real product: more certifications, a pipeline to generate and validate questions from official docs, and the pieces needed to open it to the public.
Builds
Products, side projects, and client work. Things I've taken from an idea to something people can use.
DataForge
Live · free beta
Certification prep SaaS with practice mode, timed mocks, and a gamified study loop.
- React
- Vite
- Supabase
- PostgreSQL
- Vitest
VideoX-Ray
Live demo
Financial-health engine that scores 1,286 companies from their bank trail. HackSpain 2026, Embat track.
- Python
- FastAPI
- DuckDB
- scikit-learn
- Next.js
VideoWealth Tracker
Live · public demo
Self-hostable net-worth dashboard with live prices and natural-language journaling.
- Next.js
- TypeScript
- Supabase
- PostgreSQL
- LLM
Videoirisverd
Live · shop coming soon
Editorial website for a handmade clothing atelier, built for a real client.
- Next.js
- TypeScript
- Tailwind CSS
- Vercel
Data products
End-to-end data and ML pipelines, built the way I'd build them at work: reproducible, tested, and honest about results.
Madrid NO₂ Forecasting
Leakage-safe forecasting of station-level NO₂ in Madrid at 1, 24, and 72 hours ahead.
- Python
- PostgreSQL
- dbt
- XGBoost
- pytest
Chicago Taxi Trips vs Weather
End-to-end GCP pipeline combining Chicago taxi trips and weather signals.
- Google Cloud
- BigQuery
- dbt
- Terraform
- Cloud Functions
Experience
Sep 2025 - Present
Data Engineer · Astrafy
Building data platforms and data products on Google Cloud for finance and marketing teams, from ingestion and dbt modeling to CI/CD, infrastructure as code, and self-serve analytics.
- Python
- SQL
- dbt
- GCP
- BigQuery
- Airflow
- Terraform
- Looker
- Lightdash
Oct 2024 - Sep 2025
BI Engineer · SII Group Spain
Developed data engineering and BI solutions for the Ministry of Defense, improving planning, reporting, and visibility across financial and operational data.
- Python
- SQL
- Power BI
- Bash
- Docker
- Elasticsearch
Jul 2023 - Jan 2024
Data Consultant · Minsait
Worked on SQL-heavy data solutions, partnering with analysts and technical teams to improve performance, reliability, and process quality.
- SQL
- PostgreSQL
- ETL
Apr 2023 - Jul 2023
Data Science Intern R&D · Red Eléctrica
Worked at the intersection of analytics, machine learning, and innovation, building internal tools and dashboards for energy-market and R&D use cases.
- Python
- SQL
- Power BI
- AWS
- Git
- Machine Learning
Blog
Notes on data engineering, building products, and what I learn along the way.
First posts coming soon.
Contact
Let's build something.
Whether it's a data role, a product idea, or a hackathon team, my inbox is open. Email is the fastest way to reach me.