Renato Guerrero Jr

Senior Software Engineer

Engineered Java 21 and Spring Boot services for equipment maintenance and telemetry ingestion, using Kafka and PostgreSQL. Optimized queries, built AWS Glue pipelines, and containerized services with Docker and Kubernetes.

JavaSpring BootPostgreSQLHibernateKafkaSpringBatchAWS GluePySparkRedisDockerKubernetesJenkinsJUnit5MockitoTest ContainersRESTSOAPGit

Software Engineer

Cognizant

Developed Java 11 and Spring Boot microservices for financial operations, implemented Kafka-based transaction processing, and modernized legacy Java EE applications. Built data pipelines with Azure Data Factory and PySpark, and automated testing with JUnit and Testcontainers.

JavaSpring BootSpring SecurityOAuthJWTKafkaSpringBatchSQL ServerPostgreSQLOracleAzure Data FactoryPySparkRabbitMQSpring AMQPReactTypeScript

Software Engineer

Accenture

Developed Java 11 and Spring MVC applications for customer account management and billing, integrated with SOAP web services, and optimized SQL queries. Built Angular-based admin interfaces and automated testing with JUnit and Selenium.

JavaSpring MVCSpring BootSpring Data JPAHibernateOracleMySQLSQL ServerSOAPJAX WSApache CXFJMSActiveMQAngularJavaScriptHTML5CSS

Junior Full Stack Engineer

IBM

Developed server-side components using Java, optimized SQL queries and PostgreSQL structures, and implemented integration workflows. Containerized applications with Docker and supported Linux environments.

JavaREST APIsSQLPostgreSQLDockerLinuxHTTP Based APIsAsynchronous Processing

Full Stack Engineer Intern

Developed backend functionality and REST interfaces for enterprise applications, optimized SQL queries, and automated testing. Worked with Linux deployment environments and server-side diagnostics.

JavaSQLREST APIsPostgreSQLLinuxTestingDebugging