Freelancer profile translated to English.

Description

Software engineer specialized in Python backend, SQL Server, and production systems.

I design, develop, and maintain solutions that work in real-world environments: robust APIs, cloud infrastructure on Azure, and CI/CD pipelines that reduce errors and shorten delivery times.

I work across the entire product lifecycle: architecture, development, deployment, and operation, focusing on performance, stability, and automation. I don't just implement features; I continuously iterate on them to identify improvement opportunities.

Main Stack: Python, Flask, SQL Server, Azure App Service, Blob Storage, PowerShell, GitHub Actions, pytest

Microsoft Certifications:

DevOps Engineer Expert
Azure Developer Associate
Azure Database Administrator Associate

If you need your data infrastructure to be stable, observable, and scalable, I can help you.

Industry field of expertise

Languages

Spanish
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Winfra
Application Development and Data Engineering in Production Environments
January 2017 - January 2022 (5 years)
Valencia, Spain
Participation in the development, maintenance, and evolution of applications, working on both backend and frontend, as well as in data engineering and data analysis processes with Python.

Experience in projects with real data and multiple sources, ranging from API integration to infrastructure maintenance.

Services and Responsibilities

Development and maintenance of backend and frontend applications.
Integration and consumption of REST APIs.
Data analysis and report generation.
Working with multiple data engines and formats: SQL Server, MySQL, PostgreSQL, Firebird, MDB, DBF, CSV, and JSON.
Debugging, cleaning, and data processing.
Maintenance of Linux servers (Ubuntu, RedHat) and Windows Server.
Automation using Bash and Batch scripts.
Management of backups and storage in AWS S3.
Incident and task management through JIRA.
Report generation in SQL and basic Power BI knowledge.

Technological Stack

Python, SQL, REST APIs, SQL Server, MySQL, PostgreSQL, Firebird, Bash, Batch, AWS S3, Linux, Windows Server, JIRA.
Python C# PL/SQL PostgreSQL API
ALESON ITC
Backend API Development for SQL Server Monitoring (Python, Azure)
June 2022 - Today (4 years and 2 months)
Valencia, Spain
I designed and maintain a SQL Server monitoring solution used in real client environments, covering the entire product lifecycle: architecture, development, deployment, operation, and evolution.

The solution collects performance, storage, and activity metrics using SQL and Powershell scripts, executed continuously as persistent services on client servers. The data is sent to a REST API developed in Python (Flask) and deployed on Azure App Service, where it is processed and stored in Azure SQL managed instance for real-time analysis.

Services and Responsibilities:
End-to-end design of the architecture and the complete solution.
Development of backend APIs in Python (Flask) for data ingestion and processing.
Data modeling and persistence in Azure SQL Managed Instance using SQLAlchemy.
Automation of metric collection with SQL and PowerShell, executed as persistent services (nssm).
Implementation of secure token-based authentication.
Deployment, maintenance, and scaling on Azure App Service with Gunicorn.
Version control and collaboration on GitHub.
Automated testing with pytest to ensure production stability.

Technological Stack:
Python, Flask, SQLAlchemy, PowerShell, Azure SQL Managed Instance, Azure App Service, Gunicorn, nssm, GitHub, pytest.
Python SQL Server Microsoft Azure SQLAlchemy flask

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Computer Systems Programming
Academia Femxa
2012
Programación de sistemas informáticos
CFGM - Technician in Microcomputer Systems and Networks
Colegio Esclavas de Maria
2014
CFGM - Técnico en Sistemas Microinformáticos y Redes