• Developing the "IPB App", a SaaS platform for comprehensive church management. Utilizing Kotlin, Spring, PostgreSQL, JavaScript, and Vue.js. The back-end is deployed on Railway, and the front-end on Vercel. Integrated Firebase for authentication/authorization, push notifications, and analytics.• Developed the "Hinário Novo Cântico" app, providing hymns and songs for the Presbyterian Church of Brazil. Built using native Android (Java) with a REST API backend. Reached 10,700 installs and a 4.7 rating on Google Play. Firebase is used for analytics.• Developed the "Símbolos de Fé - IPB" app, delivering official Presbyterian Church faith symbols. Created with native Android (Java) and a REST API backend. Reached 6,700 installs with a 4.8 rating on Google Play. Integrated Firebase for analytics.

• Development of microservices using Java and Spring.• Responsible for migrating one of the most used services (peaking at 7.5k req/s) from EC2 to Kubernetes.• Conducted load tests using Gatling and Redline13 to ensure the reliability and performance of the services.• Participated in the "Project Runway," which involved integrating two different platforms into a unified platform.• Development of Databricks notebooks and libraries with Scala to handle various tasks.• Creation of new Terraform modules for environment provisioning, configuring dashboards, and setting up alerts in Datadog.

• Development of microservices using Kotlin and Spring.• Responsible for deploying and configuring the Spring Cloud Config Server, showcasing its advantages over existing methods of configuration changes and feature flags.• Implemented Laravel Queues to address performance bottlenecks in synchronous processing within APIs, enhancing overall system efficiency and responsiveness.• Development of monolith (legacy) using PHP and Laravel.• Data modeling with PostgreSQL and MySQL.• Integration of microservices with Feign (REST) and Kafka.

• Development of microservices using Kotlin and Spring.• Configuration of AWS services (SQS, SNS, S3, DynamoDB and Lambda) and integration with microservices.• Data modeling with DynamoDB.

• Development of microservices for an IoT platform using Java, Spring, PostgreSQL and MongoDB.• Developed a native Android application (Java) for firmware update of IoT devices using Bluetooth Low Energy.• Defined the new back-end architecture that receives data from IoT devices. Further development was done with Azure Functions in Node.js.• Developed a native Android application (Java) for the agronomic sector where it receives a list of tasks to be performed by a person, among them knowing exactly one point (latitude/longitude) to be drilled for a sample of land of a plantation to be harvested for further analysis.

• Developed a native Android application (Java) to capture voice, transform it into text and later send it to IBM Watson, so that it, already trained by the business team, could return the best answer to the customer about a product.• Development of microservices for a customer service platform for a large mobile operator using Java, Scala, Spring, Struts, Oracle and Elasticsearch.• Development of a native Android (Java) workforce application for a large mobile operator.

• Development of a monolithic application using Java.• Oracle database modeling and adjustments.

• Development of a monolithic application using PHP.• Modeling and tuning in MySQL database.

• Development of a monolithic application using Delphi.