Leonardo Rivera

Experience

• 

  Rede Globo

  Jan 2017 - Feb 2021

  Achievements:- Decreased delivery time by 90% using a Python-based automation system for video streams.- Participation in planning Major Events such as the World Cup, Carnival, New Year's Eve, Brazilian Football, and Rock in Rio.Context:Leadership in modernizing the production structure of journalism for the largest media conglomerate in Latin America, analyzing current negative points and implementing improvements to enhance the interaction between technology and journalism. Key activities include projects, technical leadership, data analysis, operation, and supportTechnologies:- PowerBI- Python- Excel- VBA- ETL- Data AnalysisActivities • Led projects involving data analysis, implementation, and process automation • Automation of manual trigger equipment using ETL and RPA tools • Creation of Dashboards • Collecting and analyzing data to support informed decision-making and improve operational efficiency. Show less Achievements:- Developed dashboards to monitor transmission failures and generate operational reports.- Automated daily operations by creating macro-enabled spreadsheets (VBA), improving efficiency in data entry.Context:Contributed to the modernization of broadcast operations by implementing data-driven solutions to improve monitoring, reporting, and decision-making. Acted as a bridge between technology and operations, ensuring data was effectively utilized to enhance efficiency and performance.Technologies:- PowerBI- Python- Excel- VBA- ETL- Data AnalysisActivities:• Designed and maintained dashboards to track key performance indicators in broadcast operations.• Created automated solutions to streamline data collection and reporting processes.• Analyzed operational data to identify patterns, optimize workflows, and support decision-making.• Provided technical support for data-related needs in the broadcast environment. Show less Achievements:- Streamlined operational workflows by assisting in process improvement initiatives, reducing manual tasks by 20%.- Enhanced operational reliability by providing technical support and troubleshooting for broadcast systems.- Applied technical training to modernize daily operations and improve adherence to broadcast standards.Context:Supported the optimization of broadcast operations through hands-on technical experience and process improvement initiatives. Bridged theoretical knowledge with practical application by maintaining and troubleshooting radio frequency (RF) and broadcast equipment. Collaborated with teams to ensure smooth daily operations while developing expertise in broadcast technology and procedures.Technologies:- RF Equipment (Signal Analyzers, Transmitters)- Broadcast Automation Systems- Troubleshooting Tools- Microsoft Excel- VBA- Process Mapping- Technical DocumentationActivities:• Assisted in operational planning and process improvement activities to reduce inefficiencies.• Acquired hands-on experience with broadcast systems, including RF equipment setup and maintenance.• Provided technical support for daily operations, resolving equipment issues to minimize downtime.• Engaged in technical training programs to master broadcast protocols, signal flow, and compliance standards. Show less

  • Data Analyst

    Jun 2020 - Feb 2021

  • Junior Data Analyst

    Aug 2018 - Jun 2020

  • Broadcast Intern

    Jan 2017 - Aug 2018
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  Bemobi

  Oct 2021 - now

  Achievements:- Reduced costs by 75% by developing a new ETL and data ingestion pipeline on AWS, including data quality.- Delivered reports 32x faster by implementing an automated tool that generates custom reports. - Implemented a pipeline for automatic inclusion of analysis notebooks into a portal with authentication, connected to the Jira API.- Developed a Python package to be used as a tool kit for analysis.Context:Work at Bemobi, which provides an end-to-end customer engagement platform (SaaS) in payment solutions for Telecom, Utilities, and other industries, as a member of the fraud-prevention team, responsible for maintaining the ETL and data ingestion process, and developing tools used by data analysts.Technologies:- Apache Airflow- Python- SQL- Apache Spark- AWS (EC2, S3, SES, Lambda, EC2, Fargate, Cognito)- GCP- DockerActivities:• Develop and maintain comprehensive ETL and data ingestion pipelines on AWS, by using Airflow and Spark, for Bemobi's fraud prevention team, efficiently processing over half a million transactions daily with opsgenie integration for alert management.• Developed and implemented an automated reporting solution that schedules, generates, processes, and delivers customized reports, which are also available on a centralized page with user access control.• Developed and maintained CI/CD pipelines using Terraform (IaC)• Maintains a custom docker image used in our analyses• Developed a Private Python package, completely integrated into our custom docker image and pipelines.• Responsible for the integration of new products into our fraud platform Show less Achievements:- Reduced fraud losses by 77% by automating report generation, which guided strategic decision-making.- Developed multiple interactive dashboards in Tableau, enhancing data visualization and enabling more informed decision-making.Context:Member of Bemobi’s fraud-prevention team, being responsible for developing custom reports and analyses focusing on fraud reduction, building dashboards in Tableau, and integrating new products into our fraud platform.Technologies:- Python- SQL- Jupyter Notebook- Pandas- Numpy- Matplotlib- Apache Spark- Docker- TableauActivities:• Creates several reports for Bemobi's fraud prevention team, utilizing Jupyter Notebooks and libraries like Pandas, Numpy, and Matplotlib.• Developed multiple interactive dashboards in Tableau, enhancing data visualization and enabling more informed decision-making.• Responsible for the integration of new products into our fraud platform• Maintains a custom docker image used in our analyses Show less

  • Data Engineer

    Oct 2022 - now

  • Data Analyst

    Oct 2021 - Oct 2022