- Reduced company costs on AWS by 60% through backend optimizations in Node.js using the Serverless Framework.- Decreased system timeout by over 50% by optimizing the application's AWS WebSocket component.- Optimized application deployments: Improved the deployment process by reducing the size of Lambda functions using AWS Layers, Serverless Framework, and GitHub Actions for CI/CD, cutting deployment time by approximately 90%.- Eliminated PostgreSQL database outages in production by creating an observability system that provides alerts based on AWS RDS metrics.- Led the development team, serving as the go-to expert on application business rules, significantly increasing the speed of new feature delivery.- Developed a comprehensive notification system responsible for processing all application messages, contributing to converting thousands of leads using AWS SQS and WebSockets, achieving a conversion rate twice as high as the market average.

- I was responsible for migrating a legacy system to Spring Boot JAVA, increasing its performance by over 30%.- I optimized PostgreSQL queries, resulting in over a 30% speed improvement in search operations.- Implemented CI/CD automation, significantly enhancing delivery speed with a more than 20% reduction in development time.- Utilized TypeScript with Angular to develop pages for Unimed, Brazil's largest health insurance company with thousands of users, thereby modernizing their previously used system.- Directly engaged with clients to resolve bugs, serving as the subject matter expert in business rules and accelerating problem resolution.

- Increased task delivery speed by over 30% by implementing a CI/CD pipeline on GitLab integrated with WPEngine.- Led the organization of the entire Google Workspace within the company, enhancing overall organizational clarity.- Developed development processes for the company, documenting standardized procedures to facilitate future developers within the organization.