Open to opportunities

Leandro Daniel Maroni

@leandromaroniurbnek

Message

Senior data analyst and cloud engineer driving automation and data-driven decisions.

Mexico

Message

What I'm looking for

I seek roles where I can design and automate data pipelines and dashboards, mentor teams, work in agile environments, and deliver measurable business impact.

I am a results-driven data professional with international experience in data analysis, BI, and cloud engineering, fluent in English and Spanish. I specialize in automating ETL pipelines and reporting processes using SQL, Python (Pandas, NumPy), AWS/GCP services, and visualization tools like Tableau and Looker Studio to accelerate insights and reduce manual effort.

I have led migrations, built reconciliation dashboards, and implemented monitoring and automated checks that saved significant costs while improving data quality and reliability. I thrive in agile, cross-functional teams, mentor junior staff, and leverage AI tools and Git-based workflows to deliver scalable, production-ready solutions.

Experience

Work history, roles, and key accomplishments

Current

Cloud Engineer / Data Analyst

Current

American Century Investments

Jul 2023 - Present (2 years 6 months)

Managed and optimized AWS data pipelines and ETL processes, automating routine tasks (Glue, Lambda, EMR) to improve reliability and reduce manual effort; trained two analysts to scale delivery. Integrated AI-assisted development to accelerate scripting and debugging.

AWS Glue Lambda EMR Python SQL Data Pipelines ETL Data Quality Git

Data Analyst / Tableau Specialist

American Century Investments

Jul 2022 - Jul 2023 (1 year)

Built and maintained Tableau dashboards and automated AWS-based ETL workflows (Glue, Lambda, S3, Athena) to enable proactive monitoring and saved $135,000 annually through data-quality automation.

Tableau AWS S3 Athena Glue Python SQL Data Quality Automation

BI Business Analyst

Envato

Mar 2021 - Jun 2022 (1 year 3 months)

Led a BigQuery-to-Redshift migration to improve query performance and reduce costs, standardized global KPIs, and performed cohort and regression analyses that helped increase retention by 34%.

BigQuery Amazon Redshift SQL Cohort Analysis regression Tableau Stakeholder Management Data Warehousing

Data Analyst

Envato

Mar 2019 - Feb 2022 (2 years 11 months)

Designed databases and end-to-end data solutions using SQL, Python and Tableau/Data Studio, delivering segmentation and analytics that enabled targeted campaigns and increased downloads and purchases.

SQL Python Tableau Google Data Studio Data Modeling Clustering ETL Google Cloud

Digital Copywriter / Asset Manager

Envato

Jun 2016 - Mar 2019 (2 years 9 months)

Created SEO-optimized product content and promotional pages (HTML/CSS) that drove viral traffic and generated 600+ subscription sales attributable to content campaigns.