Madrid, Spain — 4+ years in production

Álvaro Cerezo
Pedrero

Software engineer — backend and data platforms

I build Python APIs and the pipelines that feed them: ingestion, transformation, validation, and the monitoring that proves it all still runs. Four years across algorithmic trading, EU data governance, and renewable-energy operations.

About

I am a software engineer in Madrid, four years into building Python APIs, backend services and data-intensive processing systems. Most of that time has been spent on the unglamorous half of the work: making pipelines repeatable, making failures visible, and making the next person able to change the code without fear.

The domains have changed more than the work has. Algorithmic trading at Ryü Capital taught me latency and correctness under load. An EU data-governance programme at NTT DATA taught me that traceability is a feature. At BRUC Energy I now build the Lakehouse components behind renewable-energy operations, where a wrong number has a physical meaning.

Alongside that I am finishing a software engineering degree at U-tad, specialising in data engineering.

Álvaro Cerezo Pedrero — Spanish — nativeEnglish — C1

Experience

2026.05 → NOWRenewable energy
BRUC Energy
Data Scientist
Madrid, Spain
- Design and build data applications and processing workflows in Python, PySpark and SQL on Microsoft Fabric for renewable-energy operations.
- Maintain pipelines and Lakehouse components across OneLake and Delta Lake, with data quality and traceability treated as requirements rather than afterthoughts.
- Replace recurring manual operational processes with repeatable engineered workflows.
- Turn business requirements into implementations that span ingestion, transformation, validation and downstream consumption.
- Python
- PySpark
- SQL
- Microsoft Fabric
- OneLake
- Delta Lake
2025.09 → 2026.05EU data governance
NTT DATA Europe & Latam
Data Engineer
Remote — Madrid, Spain
- Built event-driven ingestion and transformation pipelines on AWS S3, Glue and Lambda with PySpark, plus Dockerised microservices for ingestion and preprocessing.
- Designed and maintained Python and SQL ETL pipelines for structured and semi-structured data, covering ingestion, transformation and validation.
- Applied semantic technologies and knowledge graphs inside a European Union AI-ready data-governance initiative to improve interoperability and traceability.
- Python
- PySpark
- AWS S3
- AWS Glue
- AWS Lambda
- Docker
- Knowledge graphs
2022.07 → 2025.03Algorithmic trading
Ryü Capital
Software Engineer II
Remote — Zurich, Switzerland
Promoted from Software Engineer I · 2022.07 — 2024.06
- Led design and implementation of Python backend APIs and services in FastAPI and Flask for algorithmic-trading and financial analytics systems.
- Wrote Python and PySpark workflows to ingest, clean and structure large financial and market datasets, backed by SQL and time-series databases.
- Maintained Grafana monitoring and Python diagnostics tooling for strategy and system performance, and handled the troubleshooting that came with it.
- Python
- FastAPI
- Flask
- PySpark
- InfluxDB
- SQL
- Grafana
2022.04 → 2022.06Advertising production
Hogarth Worldwide
Software Developer Intern
Hybrid — Madrid, Spain
- Worked on React and JavaScript web applications and PHP backend components, debugging and improving existing code alongside senior developers.
- React
- JavaScript
- PHP
2020.04 → 2020.06Enterprise IT
CGI
Java Developer Intern
Hybrid — Madrid, Spain
- Maintained Java enterprise applications through defect fixes, code review and technical documentation.
- Java

Education

Stack

Languages

Python
C++
Rust
Java
JavaScript
PHP

Backend & web

FastAPI
Flask
React

Data & distributed

PySpark
pandas
NumPy
Polars
Delta Lake

AI & agents

Claude Code
Codex
MCP
Agents
Skills
Workflows

Cloud platforms

AWS
Azure
Fabric
OneLake

Tooling & ops

Docker
Git
Actions
Linux
Bash
PowerShell
Grafana

Databases

PostgreSQL
MySQL
SQL Server
MongoDB
InfluxDB

Álvaro CerezoPedrero