Osty L.

Data Engineer

Consultant (PO, Scrum Master)
1/2/2010 - 4/2/2014

Provided remote consulting in software architecture, software maintenance, and team coordination, focusing on project management and monitoring. Delivered comprehensive training and education to development staff. Managed the administration, development, and maintenance of software utilizing remote access tools. Conducted extensive investigations into business needs for ERP systems, reengineering programs such as SAP ERP, Openbravo, Open ERP, and ERP Next. Developed proficiency in Java, UML, PostgreSQL, J2SE, Struts, Primavera, Hibernate, Tomcat, and Oracle, showcasing a broad array of technical expertise.

Backend Developer
3/1/2021 - 4/1/2022

Developed and maintained health software applications during the global pandemic as part of an international English-speaking team. Swiftly met German government healthcare software requirements and meticulously documented processes in both English and German. Enabled critical new functionalities for a healthcare platform using Java and Oracle, aligning with government regulations and ensuring software deployment across multiple countries.

Demonstrated expertise in backend technologies such as Java, Oracle PL/SQL, and microservices architecture, including Spring and Spring Boot. Employed Docker for containerization and Git/GitHub for version control, while implementing JMS, message queuing services, Apache Camel, and Kafka for messaging systems. Utilized Jenkins for CI/CD pipelines and maintained robust backend systems using PostgreSQL, WebLogic, AWS, Oracle Cloud, and SAP.

Enhanced development operations applying methodologies such as SOLID principles, Scrum, Testing, and domain Service-Based Architecture. Improved software characteristics based on BI metrics analyzed through Power BI, optimizing backend performance and scalability. Ensured code quality and compliance with industry standards via SonarQube and Clean Code practices.

Proficient in RESTful services, SOA, unit testing with JUnit, and test automation using Mocking, Selenium, and Cypress. Utilized npm for package management and enforced rigorous development practices to support global health centers effectively during unprecedented times.

Java Developer
3/2/2020 - 7/2/2020

Demonstrated expertise in Java backend development with a strong focus on using PL/SQL with Oracle databases. Developed and maintained robust backend solutions, ensuring seamless integration with Oracle database systems. Utilized Java for developing high-performance server-side applications and implemented complex queries and stored procedures using PL/SQL. Applied best practices in coding and system design to optimize database interactions, thus enhancing the overall performance and scalability of applications.

Senior Systems Analyst
10/2/2018 - 6/2/2019

Developed unit and automated tests using Java Oracle. Generated value by documenting manuals of automated tests for other professionals. Participated in the analysis of projects to be implemented and facilitated consultations with junior developers. Provided support to production applications by developing PL/SQL scripts from Oracle. Documented tests and applied Java development experience to solve issues in the source code. Responsibilities included quality assurance testing, automation, supporting operations in maintenance, and development in Java/PL/SQL. Utilized technologies such as Java J2EE, PL/SQL Oracle, Oracle SOA Middleware, SoapUI, SVN, Git, Graylog, SOA, REST, JBoss, JBoss Seam, and Selenium WebDriver Automation with Chrome.

Project Management Specialist
6/2/2008 - 1/2/2010

Specialized in Business Requirement Gathering, facilitating the management of user needs from various departments, supporting the management system, and administrating projects within the Information Management System (SIP+). Oversaw BI and workflow processes, as well as task management through a ticket system. Served as an Oracle Java Developer for two distinct information systems. Acquired advanced technical skills in Java, UML, J2SE, JavaFX, Struts, Spring, Hibernate, and Jakarta Tomcat. Utilized jQuery for dynamic web applications and employed Prototype for simplifying client-side scripting. Demonstrated proficiency in database management with Oracle. Gained experience in backend development with PHP and frameworks such as Symfony and Zend. Also adept with the Google Web Toolkit (GWT) for building complex web applications.

Consultant
5/2/2005 - 1/2/2008

Served as a System Developer for an information system, undertaking roles such as Requirements Analyst, Documentation Specialist, and User Support. Acted as a Facilitator and Project Leader, showcasing extensive expertise as a Java and Oracle PL/SQL Consultant with a focus on backend development. Developed proficiency in analyzing system requirements, generating comprehensive documentation, and providing user support. Led project teams effectively, ensuring successful delivery of system functionalities.

Master's in ICT Management at National Experimental University of the Armed Forces, Caracas Venezuela
2007 - 2014

Computer Engineering at UAH
2000 - 2005

Higher Technical in Computer Science at Instituto Universitario de Tecnología de Administración
1993 - 1997

Oracle PL/SQL in Portuguese at Udemy
8/1/2019

Scrum at Certiprof
1/1/2019

Enterprise Developer (Advanced Career Education) Java Python in English at IBM
1/2/2004