Daniel R.

Data Engineer

Oracle Developer
2/1/2021 - 6/1/2021

Developed expertise in PL-SQL development within the Oracle 11g database environment. Spearheaded routines for managing and processing tax refund requests, ensuring accuracy and efficiency. Demonstrated strong skills in tuning and optimizing queries to enhance performance in Oracle 11g database systems.

Oracle Developer
8/1/2016 - 12/2/2020

Developed solutions using PL-SQL for Oracle 9i databases in a public sector environment. Managed system integrations for registration of scholarship candidates and payment control, ensuring seamless data flow between core systems. Engaged in data modeling to align with specific business requirements, optimizing Oracle 9i database resources to enhance performance and efficiency.

Requirements Analyst
1/1/2015 - 8/1/2016

Gained expertise in requirements gathering while employing Scrum and Kanban methodologies. Conducted reverse engineering tasks using Java-based source code and proficiently prototyped interfaces for system functionalities. Executed performance and usability tests within System Analysis Processes (SAP), ensuring optimal system efficiency and user experience.

Requirements Analyst
12/1/2013 - 12/1/2014

Performed requirements gathering and business analysis utilizing RUP and UML artifacts, including business flows, business rules, and use cases. Conducted reverse engineering of systems, referencing source code developed in Java. Prototyped interfaces for financial system functionalities.

Requirements Analyst
2/1/2012 - 12/1/2013

Responsible for requirements gathering and business analysis employing RUP and UML methodologies, ensuring a detailed understanding of project needs and specifications. Led the prototyping of the system functionalities' interfaces, focusing on creating intuitive and user-friendly designs. Conducted comprehensive performance and usability testing on client systems to ensure optimal functionality and user experience, identifying areas for improvement and ensuring system reliability.

Data Engineer
7/1/2023 - Present

Managed and optimized data pipelines and BI dashboards, focusing on streaming services and real estate data. Developed expertise in data extraction using Python, Apache Airflow, and GraphQL API, and in web scraping with the Scrapy Python library. Carried out data transformation leveraging AWS S3, AWS Glue Jobs, PySpark, and M language within Microsoft Power BI. Utilized AWS Redshift and MySQL for database management. Produced insightful data visualizations and conducted thorough data analysis with Microsoft Power BI, utilizing DAX for advanced analytics.

Data Engineer
6/1/2021 - 7/1/2023

Developed expertise in creating and managing data pipelines, BI dashboards, and performing extensive data analysis. Utilized Python, Apache Airflow, and GraphQL API for data extraction processes. Employed Pandas (Python library) and M language (Microsoft Power BI) for data transformation tasks. Managed and queried databases with SQL Server, MySQL, and MariaDB. Deployed code through Git, ensuring version control and collaborative development. Created data visualizations using Microsoft Power BI, Google Looker, and Dash (Python library). Conducted data analysis using tools such as Microsoft Excel, Google Sheets, and DAX (Microsoft Power BI). Tracked e-commerce events with Google Analytics and Google Tag Manager. Applied Scrum (Agile methodology) for project management within multidisciplinary teams and utilized English to effectively communicate in client meetings. All technologies were extensively used within the contexts of e-commerce, marketing, and social media data management.

Computer Science at UniCEUB - Brasília University Center
2003 - 2008

Strategic Management in Information Systems at Getulio Vargas Foundation
2010 - 2011

Data Science from Zero at Minerando Dados
11/2/2020