Ricardo C.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I'm a software developer / engineer with 10+ years of experience in the industry. Most of my career has been focused on backend engineering, with Java being the programming language I have used the most. I am very comfortable working with its main frameworks and libraries, such as JPA (Hibernate), Spring / Spring Boot, testing libraries like Mockito and JUnit, and dependency managers like Maven and Gradle. Moreover, I have solid experience with databases like PostgreSQL, MySQL, and Oracle as well as with writing RESTful APIs. My experience also extends to working with AWS (S3, SQS, Lambdas, API Gateway, Serverless Framework), GraphQL, DynamoDB (NoSQL) and frontend development with Angular, NodeJS, and TypeScript.