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William pereira

@williampereira

Platform Engineer at Itaú Unibanco who built self-service automation for AWS database platforms.

Brazil
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At Itaú Unibanco, I architected and evolved AWS database platform products across a multi-account environment. I worked with services including RDS, Aurora, DynamoDB, ElastiCache, Valkey, Redis, and OpenSearch.

I engineered self-service automation with Terraform, GitHub Actions, Python, and SQL to streamline cloud provisioning and database script execution. I also drove database automation, product pipelines, engine upgrades, and backup strategies.

As Technical Lead for the Cloud Data team, I directed technical decisions, delivery ownership, and demand prioritization. I also handled complex issues and incident troubleshooting across database infrastructure.

Earlier at Everis, I developed and maintained Hadoop ingestion and ETL processes for the ENEL project, using HDFS and Hive, and created Spark and PySpark scripts for data workflows. I also built reports and dashboards with Spotfire and Tableau.

Experience

Work history, roles, and key accomplishments

Everis logoEV

Big Data Developer

Everis

Jan 2019 - Jun 2020 (1 year 5 months)

Developed and maintained data ingestion and ETL processes on the Hadoop ecosystem. Created Spark and PySpark scripts for data transformation and built analytical reports using Spotfire and Tableau.

MS

Junior IT Support

MWG Soluções

Jun 2016 - Nov 2018 (2 years 5 months)

Provided technical support for end users and assisted with workstation and software issues. Performed data table manipulation and developed reports to support operational needs.

Education

Degrees, certifications, and relevant coursework

Amazon Web Services logoAS

Amazon Web Services

AWS Certified Solutions Architect – Associate, Cloud Architecture

2024 - 2024

AWS Certified Solutions Architect – Associate certification from Amazon Web Services.

FIAP logoFI

FIAP

Postgraduate, Software Architecture

2023 - 2024

Postgraduate in Software Architecture from FIAP, completed in 2024.

Amazon Web Services logoAS

Amazon Web Services

AWS Certified Cloud Practitioner, Cloud Computing

2021 - 2021

AWS Certified Cloud Practitioner certification from Amazon Web Services.

Coursera logoCO

Coursera

Data Engineering on Google Cloud Platform, Data Engineering

2019 - 2019

Data Engineering on Google Cloud Platform certification from Coursera.

UNINOVE logoUN

UNINOVE

Bachelor's Degree, Computer Science

2016 - 2019

Bachelor's Degree in Computer Science from UNINOVE, completed in 2019.

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