Cassio Oliveira Silva Email & Phone Number

Colombo, Pr, Br

Curitiba, Paraná, Brasil

At Pitzi, I work with a wide range of technologies, including Node.js, Prisma ORM, React.js, Next.js, CQRS, Domain-Driven Design (DDD), NestJS, PostgreSQL, TypeScript, GraphQL, Event-Driven Programming, Event Sourcing, and Backend for Frontend (BFF). I actively participate in architecture discussions and technical decision-making, while closely collaborating with the operations team to understand their challenges and continuously improve workflows across different areas.I’m currently involved in major system migrations and play a key role in driving improvements that contribute to Pitzi’s (Leapfone project) growth. Recently, the company achieved a significant milestone, reaching 1 million in revenue for the first time, and it’s exciting to be part of this ongoing journey, making a real impact both technically and strategically.

Curitiba, Paraná, Brasil

As a teaching assistant at Digital House, I was responsible for planning and delivering lessons, ensuring that students had a strong grasp of the material. I also conducted co-learning sessions, helping students clear up any doubts related to the lessons or their capstone projects. In addition, I closely followed the progress of student groups during the development of their projects, offering feedback and suggesting improvements.Beyond group work, I monitored each student’s individual progress on the Digital House platform, as well as their participation in the classroom. I worked one-on-one with students, proposing tailored solutions to help them overcome any challenges they faced during the course.

Curitiba, Paraná, Brazil

I’m responsible for building GraphQL APIs using Node.js, following TDD, DDD, and SOLID principles. On the frontend side, I create applications with React.js, leveraging libraries like Apollo Client and Styled Components. I also integrate various AWS services such as Lambda, SES, SNS, SQS, RDS, and Secret Manager into our solutions.I develop unit tests using Mocha/Chai and Jest, perform integration tests with Supertest, conduct performance testing with k6, and test frontend components using React Testing Library. Additionally, I actively resolve bugs by utilizing AWS logging systems like Kinesis and CloudWatch to ensure stability and performance across our applications.

Curitiba, Paraná, Brazil

I am responsible for introducing BDD (Behavior-Driven Development) practices to the team and ensuring a deep understanding of business rules by working closely with the Product Manager. I focus on maintaining the quality of software development and delivery in collaboration with the development team, while also sharing knowledge on software testing within the team.I’ve contributed to the QA chapter by discussing topics such as Clean Code, Clean Architecture, Design Patterns, Test Heuristics, Dev Box Testing, Shift Left Testing, BDD, and TDD. Additionally, I created a boilerplate repository for end-to-end test automation using the Playwright framework with JavaScript. I also contribute to setting up testing pipelines by applying CI/CD methodologies with GitHub Actions to streamline testing processes.

Curitiba, Paraná

I am responsible for supporting test analysts in the creation and execution of test cases, overseeing their productivity, and generating operational test reports. I also act as a liaison between the infrastructure and development teams, ensuring smooth communication and collaboration.Additionally, I validate audit rules and approve completed test scenarios, ensuring compliance with quality standards. I create test requirements and estimate the effort needed for each test, determining the number of hours or days required for completion. This helps in managing resources effectively and meeting project deadlines.

Curitiba E Região, Brasil

Curitiba E Região, Brasil

Curitiba, Paraná

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