CV

Data Engineering & Automation · Python & SQL · Software Developer

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Profile

Data Analyst with hands-on experience in Python, SQL, automation, and ETL pipelines. Built internal tools and data workflows in billing and finance environments, with a background in software development and an increasing focus on Data Engineering, especially reliable pipelines, workflow automation, and data-intensive systems.

Experience

Data Analyst

Avatel Telecom · Full-time

Oct 2025 – Present · Alcobendas, Madrid, Spain

  • Designed and maintained Python-based ETL pipelines over Oracle databases, integrating billing, debt, and customer lifecycle data across multiple legacy systems.
  • Built automated workflows replacing manual processes, improving reliability, traceability, and reducing processing times.
  • Developed a departmental data mart based on a star schema, providing end-to-end invoice lifecycle visibility and enabling KPI tracking and data-driven decision-making.
  • Translated business requirements into technical solutions, collaborating closely with operations teams.

Technical Analyst

Avatel Telecom · Internship

Apr 2025 – Sept 2025 · Alcobendas, Madrid, Spain

  • Built data analysis and visualization solutions for the Billing, Debts, and Collections department.
  • Built SQL- and Python-based solutions for operational reporting.
  • Created automated reporting tools for billing reconciliation with external partners.

Logistics & Billing Technician

PENTEX SL · Freelance

May 2023 – Apr 2025 · Colmenar Viejo, Madrid, Spain

  • Built a custom shipping management application to streamline logistics operations.
  • Managed invoicing, bank reconciliations, and operational reporting.
  • Drove digitalization and process automation initiatives to improve efficiency.

Data Visualization Intern

inBiot Monitoring · Internship

Apr 2022 – Jul 2022 · Remote

  • Developed Grafana dashboards for visualizing IoT air quality sensor data.
  • Integrated data from REST APIs and managed cloud infrastructure on AWS.

Education

Bachelor's Degree in Computer Science

Universidad Europea · 2023

Software development, programming best practices, algorithms and data structures, networking, security, Unix, databases, cloud fundamentals, web and app development, software design, and user experience.

Technical Skills

  • SQL
  • Python
  • ETL / Data Pipelines
  • Process Automation
  • AWS
  • REST APIs
  • Git
  • Linux
  • Docker
  • JavaScript
  • React
  • HTML / CSS

Languages

  • Spanish · Native
  • English · Professional
  • Swedish · Conversational