Context
At Sustentec, I worked on systems connected to laboratories, research, and development. The work combined maintaining an existing product with evolving its features and integrations.
How I worked
I developed a REST API in Dart with Shelf to integrate research-institution databases. I also maintained and evolved a laboratory management system with Java, Spring Boot, JPA, Hibernate, PostgreSQL, and Angular.
I added integration tests where that coverage did not exist, developed reports and end-to-end features, and took part in gathering requirements with clients and refining sprints with the Product Owner.
What I took from it
This experience reinforced that quality is not limited to unit tests. In a system with several layers, I needed to validate the actual behavior across API, persistence, and interface.