Open to opportunities

Maximiliano Berton Albornoz

@mbertonalbornoz

Message

Data engineer focused on building scalable, testable ETL pipelines and optimizing analytics infrastructure.

Spain

Message

What I'm looking for

I seek a data-engineering role where I can build scalable ETL pipelines, improve data quality, automate workflows, and grow within collaborative, learning-focused teams.

I am a data engineer with extensive cross-functional experience since 2021 and over nine years of total professional experience, including five years in IT. I focus on crafting efficient, scalable, and testable code, and I bring a proactive approach to building strong team relationships.

My background includes designing, owning, and promoting production ETL pipelines, optimizing data warehouse queries by ~40%, and integrating diverse data sources into centralized analytics platforms. I emphasize automation, data quality frameworks, and robust testing to reduce manual intervention and improve reliability.

I continually pursue learning—completing formal training like a Master in Finance and data engineering certifications—and I apply modern tooling such as Python, Snowflake, dbt, AWS services, Iceberg, and orchestration frameworks to deliver measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Minsait

Nov 2024 - Present (1 year 2 months)

Leading modernization of the Spanish pension calculation system and designing, owning and promoting ETL pipelines for the Basque Country Government from multiple data sources into production.

Python Pyspark AWS Glue ETL SQL Airflow Snowflake DBT

Data Engineer

Expert Systems AG - Proven Expert

Nov 2023 - Oct 2024 (11 months)

Optimized data warehouse queries improving performance by ~40% and integrated new sources (Fivetran, MongoDB, Google Ads) into Google BigQuery for centralized analytics, automating critical data update processes.

BigQuery SQL Fivetran MongoDB Data Integration ETL Automation

Data Engineer

FourthTech

Sep 2022 - Sep 2023 (1 year)

Developed and maintained automated tests for production code and implemented Airflow DAGs orchestrating end-to-end pipelines feeding production data science models; enhanced web scraping for improved extraction.

Airflow Python ETL Testing Web Scraping Data Pipelines TDD Orchestration

Ssr Software Engineer

JP Morgan Chase

Jan 2021 - Aug 2022 (1 year 7 months)

Built data pipelines integrating multiple sources to improve product data completeness for Asset Managers and developed a data quality framework that cut manual intervention in checks by 50%.

Data Pipeline Development Data Quality SQL Python ETL Data Integration

Sr Chemical Engineer

National Atomic Energy Commission

Feb 2016 - Dec 2020 (4 years 10 months)

Conducted engineering inspections for the RA-10 reactor project and supervised contractor compliance on the project's largest contract for six months.

Inspections & Compliance Engineering Supervision Technical Reporting