• Developed Python crawlers and parsers to gather information about over 30 million Braziliancompanies from multiple sources, increasing database size by 11% and product accuracy byup to 25%;• Containerized crawlers and parsers with Docker, facilitating deployment in data pipelinesusing Kubernetes;• Used AI algorithms to predict information such as the revenue and workforce size of Braziliancompanies;• Created Python ETL components that collected and transformed data about prospectiveclients for the outbound team, saving an estimated 50% of their time;• Applied cybersecurity principles throughout ETL pipelines and cloud services;• Managed cloud infrastructure and implemented DevOps practices, improving stability andresulting in a 20% reduction in cloud costs in two months;• Established a monitoring system using Prometheus and Grafana to identify and resolveperformance issues, resulting in a 50% reduction in system latency;• Mentored junior team members on software development, data engineering, and DevOpsbest practices;• Conducted code reviews and pair programming sessions to assist peers with code quality;• Established and maintained technical documentation and knowledge repositories tofacilitate knowledge sharing and onboarding of new team members.

• Integrated REST APIs into a client-server Point of Sale (POS) software used by over 27,000Brazilian supermarkets and retail stores in 22 states;• Designed and built a software configuration system using TOML to better addressclient-specific needs;• Closely collaborated with clients to define system requirements and develop solutions;• Developed C++ middleware to enable compatibility with various client peripherals (e.g.,scanners, printers);• Revised the entire payments system to eliminate rounding and floating-point arithmeticerrors;• Automated complex building processes using Makefiles;• Conducted extensive code refactoring and optimization to improve C++ code maintainabilityand readability;• Incorporated unit tests and automated test suites to validate software functionality andprevent regressions in code quality;• Utilized multithreading and concurrent programming techniques to enhance softwareresponsiveness and performance;• Conducted research and development activities to explore emerging technologies andidentify opportunities for product and service innovation.