Open to opportunities

Mathias Neves

@mathiasneves

Message

Senior Data Engineer specializing in cloud migrations, Big Data pipelines, and performance optimization.

Brazil

Message

What I'm looking for

I seek senior-level roles focused on cloud data platform migrations and scalable ETL/Big Data solutions, within agile teams that value automation, cost optimization, and cross-functional collaboration.

I am a Senior Data Engineer with extensive experience migrating on-prem Big Data systems to cloud platforms like Azure and AWS, modernizing ETL workflows with Databricks, Spark (PySpark), Delta Lake, and Azure Data Factory while implementing CI/CD and cost optimizations. I have led teams, mentored engineers, and delivered measurable improvements in runtime, costs, and reporting efficiency across banking, retail, and manufacturing clients.

My background spans data architecture, data modeling, and large-scale ETL development using tools such as SQL Server, SSIS, Power BI, Terraform, and automation with Python. I focus on scalable, reliable data platforms, applying agile practices and cross-functional collaboration to increase data quality, observability, and business impact.

Experience

Work history, roles, and key accomplishments

Senior Data Engineer

Santander

Mar 2025 - Oct 2025 (7 months)

Spearheaded migration of on-prem Hadoop/Spark pipelines to Azure Databricks and Azure Data Factory, established CI/CD with GitLab/Jenkins, and reduced Databricks costs by 30% while improving pipeline reliability.

Databricks Pyspark Azure Data Factory Delta Lake CI CD Jenkins Spark Cost Optimization

Senior Data Engineer

Suhai Seguradora

Feb 2024 - Feb 2025 (1 year)

Led end-to-end data structuring and cloud migration, migrating SSIS pipelines to Azure Databricks and Spark, reducing runtime by 40% and standardizing schemas and metadata.

Databricks Pyspark Delta Lake SSIS Azure Data Factory T SQL Data Modeling

Lead Engineer

Santander

Aug 2023 - Feb 2024 (6 months)

Led a team of 5 to migrate 50+ legacy pipelines to Azure Databricks and Data Factory, cut runtimes by 35%, implemented Terraform IaC and CI/CD, and reduced release cycles by 50%.

Pyspark Databricks Delta Lake Terraform Azure Data Factory CI CD Jenkins Team Leadership

Lead Engineer

Unilever

Jan 2022 - Aug 2023 (1 year 7 months)

Designed analytics solutions and Databricks pipelines for LATAM and North America, built 30+ Power BI dashboards reducing reporting costs by 40% and automated promo tracking saving 25 hours/week.

Databricks Pyspark Delta Lake Power BI DAX Azure Data Factory Analytics

Logical DBA

Gerdau

Jun 2021 - Aug 2022 (1 year 2 months)

Managed database integrity and performance, resolved 200+ incidents annually reducing downtime by 30%, and implemented predictive monitoring scripts to preempt performance issues.

SQL Server T SQL Performance Tuning Monitoring Automation Query Optimization Troubleshooting

Lead Engineer

Itau

May 2021 - Jan 2022 (8 months)

Led migration of 50+ banking applications to AWS, achieving 40% cost reduction, improved performance by 35%, and implemented Terraform and CI/CD for zero-downtime deployments.

AWS EC2 S3 RDS Terraform Python CI CD Cloud Migration Infrastructure as Code Automation Monitoring

Data Architect / ETL Developer

Vale

Nov 2016 - Jun 2021 (4 years 7 months)

Designed enterprise data models and ETL pipelines processing 10TB+ daily, reduced query times by 40% through optimized models and cut refresh cycles from 8 hours to 90 minutes.

Data Modeling SQL Server SSIS Python Pyspark Azure Data Factory Performance Optimization ETL

Intern / Developer

Mapfre

Nov 2014 - Nov 2016 (2 years)

Progressed from help desk to full-stack development, delivering core insurance solutions and improving support processes and transaction processing times.