Marco Antônio Vieira

Málaga, Spain

contact@mtonio.com

website: https://tonio-m.github.io

github: https://github.com/tonio-m

linkedin: https://linkedin.com/in/vieira-marco

Skills

Python, SQL, Amazon Web Services,

Google Cloud Platform, Kubernetes,

Linux, Docker, Kafka, Apache Spark,

Terraform, Gitlab, Shell, Node.js

Certifications

Certified Kubernetes Administrator

aug 2025 - aug 2027                                 credential: LF-6ph4dhk0zy

Amazon Web Services Solutions Architect Professional

mar 2022 - mar 2025                                 credential: Q4DWJJ3JMMQ1QFKZ

Experience

MLOps Engineer - Qaracter

Malaga, Spain — feb 2025 - currently

Relocated from Brazil to Málaga, Spain to work for Santander Corporate Investment Banking

• Sole maintainer of data library used by >7 scientists (Python, PySpark, GitHub CI/CD)
• Managed suite of forecasting ETLs to high-visibility dashboards, seen by stakeholders and directors. (Databricks, Airflow)
• Onboarded autonomously on undocumented derived datasets, reverse-engineered multiple systems (S3, Hive, Scala)
• Developed deep functional knowledge of financial assets (Credit Facilities, Syndicated Loans, Borrower hierarchies)

Senior Data Engineer - Fullstack Labs

United States, Remote — jul 2023 - feb 2025

Working full time for Amherst, Real Estate Investment Firm

• Migration of On-premises Cloudera to AWS Databricks (Linux, AWS, Git)
• Work on Observability and Data Quality Initiatives (Splunk, Python, Grafana)
• Developed library for integration of 48 different vendor datasets (Databricks, Spark)
• Prototyped Kafka-based MVP to evaluate streaming architecture (AWS, Amazon MSK)

Machine Learning Data Engineer - hCaptcha

United States · Remote — jul 2022 - jul 2023

Worked for Intuition Machines (parent company of hCaptcha) on the product

• Decoupled data processing from model training (Minio)
• MLOps work for model trained on ~80GB (Kubernetes, Argo, Helm)
• Worked on feature selection and internal scores (Pytorch, Weights & Biases)
• Refactored legacy code to new framework (Python, SQL, Git, VowpalWabbit)

Data Reliability Engineer - Banco Inter

Remote — jun 2020 - Jul 2022

• Deprecated legacy pipelines (Airflow, EMR, Spark)
• Database Migration and CDC (SQL Server, MySQL, Debezium, RDS)
• Improved security and monitoring of data systems (LDAP, New Relic)
• Automated Access Management (SQL, Hive, AWS Glue, Redshift, Starburst)
• Worked on the reliability of >100GB RAM Kafka clusters (Kubernetes, Helm)

Junior Data Engineer, Data Sprints

Belo Horizonte — jan 2019 - jun 2020

• Wrote IaC for many resources (Terraform, AWS)
• Managed SQL/NoSQL databases (Elasticsearch, MongoDB, PostgreSQL)
• Coded real time data pipeline that processes login data for app with >100k DAU (Spark Streaming, Amazon EMR, Scala)

Other Certifications

Amazon Web Services Solutions Architect Associate

jan 2020 - mar 2025                                 credential: S335LEQ1P1BEQCW3

Amazon Web Services Cloud Practitioner

jan 2019 - mar 2025                                 credential: 7SWLYYG13EQQ1E5E