Roberto K.

Back-end and Systems Engineer

Fullstack Java Developer
11/1/2022 - 7/1/2023

Gained expertise in maintaining applications using Java technologies, with extensive use of JPA and Hibernate. Showcased proficiency in Oracle database management. Worked extensively on front-end development using Angular, and back-end development with Spring Boot. Demonstrated strong skills in creating and managing RESTful web services.

FullStack Java Developer
8/1/2021 - 10/1/2022

Developed applications using Java technologies, specializing in the full lifecycle of software development. Gained expertise in Java Persistence API (JPA) and Hibernate for ORM solutions. Utilized Oracle as the primary database management system, ensuring efficient data storage and retrieval. Leveraged Thymeleaf for dynamic web page rendering and templating. Designed and implemented WebServices to enable seamless integration with external systems. Played a key role in developing RESTful services using Spring Boot, enhancing the scalability and maintainability of applications.

Java Backend Developer
12/1/2020 - 5/1/2021

Led the design and development of robust APIs utilizing Java technologies. Gained expertise in creating RESTful services with Spring Boot and handled data persistence with Hibernate/JPA. Developed deep proficiency in microservices architecture, focusing on scalability and maintainability of applications. Employed tools such as Postman for API testing and Swagger for API documentation. Implemented continuous integration and deployment pipelines using Jenkins and Docker, ensuring effective version control and collaboration through Git. Optimized performance and functionality using various Java frameworks, including Spring Cloud and Netflix OSS components. Additionally, enhanced API security with OAuth 2.0 and JWT, and ensured data integrity by integrating unit and integration testing with JUnit and Mockito.

Oracle Forms & Reports Developer
11/1/2018 - 6/1/2019

Leveraged extensive expertise in Oracle technologies to develop robust applications and generate comprehensive reports. Demonstrated proficiency with Oracle's suite of tools, including Oracle Database, Oracle Forms, and Oracle Reports. Successfully utilized PL/SQL for complex database programming, ensuring high efficiency and optimized performance. Showcased strong skills in data modeling and SQL query optimization, leading to enhanced application functionality and user experience. Managed version control and collaborative projects using Git, ensuring seamless integration and code maintenance.

Java Web Developer
2/1/2010 - 11/1/2012

Developed web applications using JavaServer Faces (JSF) and RichFaces. Leveraged JBOSS Seam for streamlined development and configuration. Employed Hibernate and Java Persistence API (JPA) for object-relational mapping and database interactions. Utilized PostgreSQL for database management and performed comprehensive system integration tasks to ensure seamless operations across various platforms and services.

Computer Science at University of Fortaleza - UNIFOR
2008 - 2014