● While contributing to LESSE, led the development of the new version of the Silver Bullet API (https://silverbullet.lesse.com.br). ● Developed a Maintainable and Scalable API by using hexagonal architecture, DDD, and E2E and Unit Testing (Vitest). ● Applied SOLID principles and Object-Oriented Programming (TypeScript, Node, Prisma, PostgreSQL). ● Established a reliable API by setting a middleware to avoid brute force attack and applied RBAC to manage permissions . ● Responsible for the modeling and management of the DB.

The company is a start-up software house, it started providing automations and now it is mainly developing web projects. ● Improved queries efficiency in PostgreSQL and SQL by making use of joins. ● Reduced time for deployment using Github Actions as an automation. ● Contributed to database modeling of some projects. ● Introduced new tools to the team to improve reliability, such as React Hook Form, Zod. ● Researched new services for Whatsapp Chatting, like Twilio and Meta. ● Delivered a mobile payment terminal integrating a fiserv payment solution. ● Delivered products using S3, SES, Dynamo, SQS, Lambda, EC2. ● Made use of Simple Queue Service(SQS) for workload management and reliability. ● Deployed serverless APIs using AWS lambdas.