Full-Stack Python Software Engineer | Cloud & API Integration Specialist

Built CRM systems for sales and inventory management with Flask and Vue.js, streamlining workflows and improving operational efficiency by 40% for an industrial client. Launched and maintained e-commerce platforms with WordPress and Flask, generating a notable 30% increase in online sales within the first quarter. Automated routine data entry with Selenium and PyAutoGUI scripts, reducing human effort by 60% and enhancing productivity. Developed optimized checkout experiences with Asyncio and Brython, delivering smoother transactions and a measurable rise in conversion rates.

Designed and deployed asynchronous microservices utilizing Asyncio, achieving a 2x increase in system throughput and reducing client request processing time by 50%, directly benefiting financial operations. Automated key data entry processes with Python tools, recovering over 80 weekly staff hours for higher-value business analytics and activities. Established robust end-to-end API testing with Python, uncovering and resolving the leading data integrity issues, resulting in a 99% increase in system accuracy.

Integrated over 10 REST and SOAP banking APIs, optimizing transaction flow and elevating financial operations efficiency by 35% across platforms. Developed asynchronous backend components using Asyncio, more than doubling throughput and lowering request processing delays. Constructed stateless REST APIs tailored for AWS Lambda, leveraging FastAPI and Flask to achieve 40% hardware cost savings and support sustainable scaling. Created a cloud-based EC2 proxy pool, lowering infrastructure spending by 50% while maintaining seamless uptime for mission-critical services.

Conceptualized and launched a multi-platform SaaS solution using distributed computing (Celery, AWS SQS), enhancing resource efficiency and scalability. Built a WhatsApp-integrated mass messaging application using WebSockets and TypeScript, significantly boosting customer engagement within the first month. Architected data management strategies leveraging MongoDB and PostgreSQL to ensure scalable, reliable data processing and storage. Applied clean architecture principles to enhance code extensibility and support long-term maintainability amid rapid feature growth.

Delivered web applications supporting real-time lead distribution and monitoring, improving commercial performance and responsiveness. Engineered REST API integrations with PagSeguro for seamless transparent checkout, employing FastAPI, httpx, and AWS Lambda for reliability and scalability. Led database design and management efforts using PostgreSQL and SQLAlchemy to enable robust and efficient data processes. Created KPI metrics and performance dashboards through ETL pipelines and Grafana, presenting actionable insights for business growth. Implemented WhatsApp API integrations to facilitate enhanced customer engagement across commercial pipelines.

Developed desktop applications for business-critical monitoring using Tkinter, improving system visibility for key stakeholders. Automated browser data extraction with Python (Selenium, PyAutoGUI), securing previously inaccessible information and supporting operational needs. Created and maintained web solutions (Flask, SQLAlchemy, Pytest) for internal and external users, facilitating work for sales and franchise networks. Devised BI dashboards in Python (Dash, Plotly, Pandas), delivering real-time analytical insights for vital decision-making. Integrated REST APIs from top-tier Brazilian banks, fostering a significant lift in profitability for financial products.

Managed sensitive company databases (PostgreSQL, SQL Server), ensuring security and optimal performance of essential business data. Monitored infrastructure and commercial processes using Zabbix and Grafana, directly influencing key performance outcomes. Provided high-level (L3) technical support to both headquarters and franchisees via GLPI, resolving acute issues promptly. Oversaw regular maintenance and repairs on mission-critical equipment and systems to maximize uptime.