University Teacher. Currently teaching frontend web development: HTML, CSS, JavaScript and Vue.js, with Git and GitHub as control version systems. Using flipped classroom as methodology.

In the past, I taught backend with Java, but it was replaced due to increase of use of JavaScript stack.

As a Backend Lead at Rooftop, I manage a team of 5 and am responsible for the design and execution of the Rooftop product, used by developers, clients, and internal staff. This platform connects devs and clients, providing a matching service. My responsibilities include:

Product design and oversight. Comprehensive project management and participant coordination. Technical leadership. Since stepping into this role in October 2022, I have implemented innovative solutions using technologies like Java, Spring Boot, Amazon Web Services (AWS), Hibernate, Docker, CI/CD, and Microservices. My approach has enhanced team efficiency and optimized product performance, resulting in faster, higher-quality profile matches throughout the selection process.

Backend developer at Rooftop. Worked on an investment platform, which allows clients to make customizable investment portals, in order to get funds for their projects following USA regulatory laws.

Focused on overall system improvement and new features. Started as backend developer, but ended as tech leader.

Technologies used:

• Docker
• PostgreSQL
• GNU/Linux
• Git
• Heroku
• Integration Testing
• GitHub
• RSpec
• Model-View-Controller (MVC)
• Python
• Java
• Spring Boot
• Cascading Style Sheets (CSS)
• JavaScript
• Web Application Security
• Redis
• Test Driven Development (TDD)
• Unit Testing
• Integration Testing
• HTML

• Used technologies: PHP, MySQL, Redis, ElasticSearch, Vue.js, Git, GitHub, Unit and Integration Testing, Web Frameworks, Docker, GNU/Linux, Queues, Jenkins, Kibana, Amazon S3.
• Responsibilities:
• Backend leader: due to my experience and knowledge, I was in charge of big backend changes, advisement and leadership.
• Payment processor integrations, like MercadoPago, PayPal, Billplz, etc.
• Withdraw processors integration, like Transpay, Iugu, Payoneer, etc.
• Optimization: make Workana faster and guarantee that even with high amount of users everything works fine.
• Information security: guarantee that all systems focus on defense in depth, reduce risk exposure and vulnerabilities management.
• Search system maintenance and new features addition.
• Backend related tasks, but also some frontend tasks.

Teacher in "111 mil" training, which aimed to train 111.000 developers. I taught 60 people desktop development, algorithms, Java and Swing, Git, GitHub, Hibernate as ORM and MySQL as database.

Although I wanted to teach web in that moment (because desktop software was not used anymore), that was not allowed.

I did the "Work and Travel" experience in the United States, working at a ski resort in Crested Butte.

Full stack Developer.

Project: ERP software.

I focused mainly on Java and Spring Boot as backend, but also frontend with JQuery and Knockout.js (a MVVM framework).

Freelancer developer. Developed three systems:

• Jewelry administration system, a desktop software, which was made using Java, Swing, MariaDB and Hibernate as ORM.
• Shipping platform, a quite big project. It was a web system, made with Ruby, Ruby on Rails, PostgreSQL and jQuery.
• A linear optimization solver, which was used by students in order to learn linear programming in an easier and better way. It was a desktop software, with Java and JavaFX as main technologies.

Of course unit and integration testing were used in all systems.

In a university research group. We studied web systems security, and gave talks in order to increase awareness.