Oct 2023 – Mar 2026 · 2 yrs 5 mos · Ponta Grossa, Paraná, Brazil · Remote

• Initially joined as a contractor in charge of the full development and maintenance of the React.js/Redux and ASP.NET cloud-based platform with SQL server for data storage, ensuring high availability through GitLab CI/CD, automated tests, lint validation, and New Relic for observability.
• Updated and restructured the core risk assessment engine to fully comply with recent legal changes in ergonomic evaluation, guaranteeing client compliance and mitigating liability risks associated with outdated reports.
• Implemented a strategic risk aggregation report designed to consolidate and centralize all ergonomic risks identified across a single end client (e.g., an industry or commerce assessed by users). This feature provides comprehensive cross-site insights to help users perform high-level risk analysis and planning.
• Optimized AWS cloud infrastructure configuration (EC2, RDS, Amazon MQ) for scalability and cost-efficiency, achieving a 33% reduction in cloud operational costs while maintaining 99.9% system uptime through single-handed management of all deployment cycles and CI/CD pipelines.
• Led the platform's LGPD compliance (Brazilian GDPR equivalent) by implementing Privacy Policies, Terms of Use, and advanced security best practices. This effort involved designing a minimal-data architecture to restrict the use of Personal Identifiable Information (PII), in addition to encryption of personal data, ensuring client trust and legal risk mitigation.

Aug 2023 – May 2025 · 1 yr 9 mos · Brazil · Remote

• Delivered customized one-on-one technical mentorship to an experienced developer, instructing on modern web technologies (React.js, Material UI, Node.js, TypeORM, PostgreSQL), including AWS and production environment setup. This guidance enabled the development of a new bus charter system, featuring trustworthy billing control and charter budgeting features that significantly improved user agility and financial reliability.
• Provided architectural guidance and code reviews, ensuring production-ready standards for the new bus-charter system.
• Analyzed and engineered software optimizations to manage the flow of large data volumes, avoiding technical bottlenecks and ensuring low data latency, increasing the response speed by 70%.

Apr 2022 – Mar 2024 · 1 yr 11 mos · Brazil · Hybrid

• Engineered and prototyped an industrial sensor to collect real-time production data. This eliminated manual data entry, removing delays, errors, and potential data manipulation, thereby ensuring accuracy and efficiency in metrics. The system used an ESP32 controller programmed in C++ and communicated using the MQTT protocol through a RabbitMQ queue, designed to avoid data loss caused by connection drops and network instability.
• Architected part of the frontend and backend of Plantview, a Manufacturing Execution System (MES), built with React, Spring Boot (JAVA), Node.js microservices, and MongoDB. The system supported over five hundred monitored equipment, with the infrastructure processing data from hundreds of real-time sensors, generating approximately 1200 average transactions per hour per sensor.
• Developed the frontend for a feature that displays real-time production data collected from sensors, allowing users to identify production downtimes quickly. This improvement increased equipment uptime and overall productivity, leading to higher profit results and enabling the identification of production bottlenecks in real time. The solution relied on RabbitMQ for communication.
• Designed and implemented a modern data visualization dashboard for Plantview using Chart.js and Material UI with advanced comparison features and filtering to track critical productivity metrics (e.g, Overall Equipment Effectiveness, Cost of Poor Performance, Average Downtime). This delivered insights that guided Senior Management in making data-driven decisions that successfully increased productivity and reduced downtimes.
• Engineered and implemented a timeline with Chart.js and Material UI to visualize production time and operational downtimes per shift. This feature directly assisted operators in rapidly justifying downtimes and enabled managers to identify equipment-related bottlenecks.

Aug 2021 – Mar 2022 · 7 mos · Brazil · On-site

• Developed and maintained Agriwin, an agricultural software system, using Grails (a framework built on top of Spring Boot) and HTML/CSS/JS with jQuery, to deliver key features for clients.
• Implemented a logo insertion feature for clients, which included image cropping and image adjustment tools, in addition to the backend logic for file upload and management. This feature allowed clients to generate custom reports with company logos.
• Created a complex report, exported in PDF and XLS formats, to improve internal reporting and operational processes.
• Adjusted all system reports, generated in PDF and XLS formats, to include filter fields, company information, and logo. These adjustments enabled clients to manage accurate and organized data, showcasing the user company brand on specific occasions.