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Marcus Vicentini

@marcusvicentini

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Senior Data Engineer at Qubika who cut Spark pipeline processing from 2 hours to 15 minutes on billion-row tables.

Brazil

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What I'm looking for

I’m open to senior data engineering opportunities with international teams.

At Qubika, I cut end-to-end processing time from 2 hours to 15 minutes by resolving bottlenecks in Apache Spark pipelines over billion-row tables. I also standardized transformation logic in a large-scale dbt project and own pipeline orchestration through Airflow DAGs.

At Just a Little Data, I rebuilt a legacy SQL Server ingestion flow with Python, reducing processing time from 15 hours to 2 hours. I designed analytical environments and cloud solutions for clients, and integrated Power BI dashboards with data warehouses. I’m open to senior data engineering opportunities with international teams.

Experience

Work history, roles, and key accomplishments

Current

Senior Data Engineer

Current

Qubika

Dec 2024 - Present (1 year 10 months)

Cut end-to-end processing time from 2 hours to 15 minutes on billion-row tables, standardized dbt transformation logic, architected multi-layered data models, and owned Airflow orchestration. Also runs technical hiring interviews and mentors engineers.

DBT Databricks Apache Spark Airflow Python SQL

Data Engineer

Just a Little Data

Sep 2022 - Jan 2025 (2 years 4 months)

Rebuilt a legacy SQL Server ingestion flow with Python, cutting processing time from 15 to 2 hours. Architected cloud solutions on GCP and AWS, integrated Power BI dashboards, and implemented governance and reliability measures.

Google Cloud Platform AWS Airflow Airbyte Docker Python SQL

Data / System Engineer

M2PLAY SmartThings&Sound

Jan 2021 - Aug 2022 (1 year 7 months)

Centralized device status from multiple locations into a cloud PostgreSQL database using Python, and created a dedicated integration network for IoT devices.

Python PostgreSQL

Engineer

Cal Test Electronics

Apr 2016 - Jun 2016 (2 months)

Managed and improved autonomous line-follower products, maintained robots using Python, and integrated data via APIs to connect to databases.

Python APIs

Education

Degrees, certifications, and relevant coursework

University of California, Riverside

Postgraduation Diploma, Engineering Management

2015 - 2016

Postgraduation Diploma in Engineering Management from the University of California, Riverside, completed in 2016.

Universidade Federal de Uberlândia - UFU

Bachelor's Degree, Electrical Engineering

2008 - 2014

Bachelor's Degree in Electrical Engineering with focus on Mechatronics, Robotics, and Automation from Universidade Federal de Uberlândia, completed in 2014.