About Alejandro
Lead Data Engineer with 7 years building and scaling modern data platforms across consulting and product companies. Currently leading data strategy and governance for a 500-person organization and a distributed team of 8 consultants delivering ~€1.5M in annual revenue, with hands-on depth across GCP, dbt, Snowflake, and Airflow. Google Developer Expert in Data Analytics, 8× Google Cloud Professional certified, and a recurring speaker at DevFest, Big Data & AI World, and dbt community events.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- AstrafyLead Data EngineerDIGITAL AND ITJanuary 2025 - Today (1 year and 6 months)Madrid, Spain
- Grew and led a distributed team of 8 data engineering consultants (from 3) delivering ~€1.5M in annual client revenue. Own hiring end-to-end, plus 1:1s, performance reviews, and career development.
- Authored Astrafy's internal data modeling guide, adopted across 10+ client engagements to standardize patterns, eliminate spaghetti pipelines, and raise baseline data quality.
- Built internal accelerators for dbt, Airflow, and dltHub, reducing bootstrap time on new client engagements from one month to one week, codifying delivery best practices across the consultancy.
- Lead pre-sales for the data engineering practice by scoping solutions, estimating effort, and shaping technical proposals for new client engagements.
- AstrafySenior Data EngineerE-COMMERCEJanuary 2024 - January 2025 (1 year)Madrid, Spain
- Led a 3-person team developing several data products with 600+ models using dbt cloud, Snowflake, Airflow, Fivetran, Stitch, and Looker.
- Designed and implemented a data product that empowered internal teams in a Retail Fortune 500 company through automatic custom translation model training on their internal data.
- AstrafyData EngineerBANKING AND INSURANCEJanuary 2023 - January 2024 (1 year)Madrid, Spain
- Introduced Terraform-based infrastructure as code across three client organizations.
- Drove the data security overhaul that earned a FinTech client their ISO 27001 certification.
- Built a SaaS-style platform to deploy Airflow and Airbyte on Kubernetes, cutting setup time by 50%.
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Education
- Master's in Data Science & EntrepreneurshipPolytechnic University of Madrid - EIT Digital2023Master's in Data Science & Entrepreneurship
- autonomy: Practical Frameworks for Agentic SoftwareGoogle Cordoba2026autonomy: Practical Frameworks for Agentic Software