Welerson A.

Data Engineer

Data Engineer
1/1/2023 - Present

Demonstrated expertise in the development and maintenance of ETLs, with substantial work on developing Directed Acyclic Graphs (DAGs) using Apache Airflow. Effectively led data migration initiatives from on-premise environments to the Cloud, specifically utilizing Google Cloud Platform for seamless transitions. Showcased comprehensive skills in Azure Data Factory, managing end-to-end data migration projects to ensure reliable and accurate data movement.

Data Engineer
4/1/2022 - 12/1/2022

Specialized in the development and maintenance of ETLs, gaining advanced proficiency in creating and optimizing Extract, Transform, Load processes. Demonstrated technical expertise in the development of Directed Acyclic Graphs (DAGs) utilizing Apache Airflow to manage and streamline complex workflows. Successfully executed data migration projects, transitioning substantial datasets from on-premise infrastructures to cloud-based environments, specifically Google Cloud.

Back-end Developer
2/1/2022 - 4/1/2022

Developed proficiency in FastAPI for the creation and deployment of efficient, high-performance APIs. Demonstrated strong skills in Python programming, leveraging FastAPI's asynchronous capabilities to optimize response times and system throughput. Gained experience in integrating FastAPI with relational and non-relational databases, including PostgreSQL and MongoDB, ensuring robust data handling and storage solutions. Utilized Docker for containerization, streamlining the development, testing, and deployment processes. Employed continuous integration and continuous deployment (CI/CD) pipelines using Jenkins to enhance code quality and efficiency. Applied OAuth2 and JWT for secure authentication and authorization mechanisms. Enhanced collaborative workflows through version control systems like Git, facilitating seamless teamwork and project management.

Back End Developer
1/1/2021 - 2/1/2022

Developed microservices utilizing Django, focusing on building scalable and efficient web services. Created comprehensive analytics and dashboards leveraging PostgreSQL, enabling in-depth data analysis and reporting. Executed data extraction tasks using pandas, demonstrating strong data manipulation and processing capabilities. Implemented asynchronous communication through a message broker, ensuring smooth and reliable message delivery and processing. Applied unit testing methodologies with pytest to ensure code quality and maintainability.

Intern
7/1/2018 - 6/30/2020

Achieved advanced technical proficiency in troubleshooting and resolving complex IT issues, leveraging expertise in Windows, macOS, and Linux operating systems. Utilized diagnostic tools and scripts to efficiently handle system errors and application crashes. Demonstrated excellence in managing customer support tickets through advanced ticketing systems. Engaged in extensive work with networking tools, including configuring switches and routers, and resolved connectivity issues. Acquired in-depth knowledge of virtual environments, managing virtual machines using VMware and Hyper-V. Showcased capability in scripting with PowerShell and Bash for automation of repetitive tasks. Maintained collaborative code and script repositories utilizing Git and GitHub, facilitating seamless teamwork and version control. Enhanced systems security by deploying and managing endpoint protection software and conducting regular security audits. Participated in root cause analysis and provided technical documentation and guides to optimize IT support processes.

Computer Engineering at Federal University of Goiás
2016 - 2022

DP-203: Data Engineering on Microsoft Azure at Microsoft
1/1/2024

Associate Cloud Engineer at Google Cloud Plataform
9/1/2022

Big Data Fundamentals 3.0 at Data Science Academy
12/1/2021

Cognizant Data Engineer at Digital Innovation One
11/1/2021