Jefferson Fusco Ramos

Platform to manage short to intermediate term trading, serving portfolio management platforms with clean and normalized data for assets.

• Full stack development in a microservices environment, focusing on high throughput and low latency
• Integration, consumption and normalization of data from multiple sources

Technologies / Frameworks: Java 21 | Spring Boot | Spring MVC | Spring Data | PostgreSQL | Hibernate | Python | Alembic | React | Kafka | Docker | Kubernetes | Jenkins | ArgoCD | AWS | Git

Platform to manage short to intermediate term trading, serving portfolio management platforms with clean and normalized data for assets.

• Full stack development in a microservices environment, focusing on high throughput and low latency
• Integration, consumption and normalization of data from multiple sources

Technologies / Frameworks: Java 21 | Spring Boot | Spring MVC | Spring Data | PostgreSQL | Hibernate | Python | Alembic | React | Kafka | Docker | Kubernetes | Jenkins | ArgoCD | AWS | Git

Allocated to team responsible for restrictions applied to customer orders depending on their country/region, order history and product quantity limit throughout a defined timeframe

• Backend development, focused on AWS Lambdas using Quarkus
• Work with DevOps engineers on infrastructure management, using Terraform for AWS resources provisioning

Technologies / Frameworks: Java 21 | Quarkus | AWS | DynamoDB | Terraform | Git

Platform to manage automatic tolling, including devices rental and automatic billing.

Technologies / Frameworks: Java 21 | Spring Boot | Spring MVC | Spring Data | PostgreSQL | Liquibase | Hibernate | Apache Kafka | Docker | Jenkins | AWS | Gerrit | Git

Platform dedicated to datacenter management, including on site access, power consumption, power sources (renewable or not), control from sensors (humidity, temperature), management of VLANs and cloud access for severs, server maintenance schedule

• Back and front end development (70/30 work proportion between back and front end)
• Assuming team leader position when needed, planning sprints, team workload, release planning
• Code reviews

Technologies / Frameworks: Java 17 | Spring Boot, Spring MVC, Spring Security, Spring Data | PostgreSQL | Liquibase | Hibernate | Cassandra | Angular 11 / 18 | Jenkins | Git | AWS

Platform to manage and migrate food vouchers from printed paper to magnetic cards

• Back-end developer, working with J2EE, JSF, relational databases(PostgreSQL / JDBC)
• App development for Ingenico and PAX POS(both using C)
• App development for Android (Java)
• Currently migrating existing systems to Spring MVC, Spring Data (Hibernate) and Angular environment

Technologies / Frameworks: Java 8 | J2EE | JSF | PostgreSQL | JDBC | C | Mobile | Spring Boot | Spring MVC | Spring Data | Hibernate | Angular

Technologies / Frameworks: Java 8 | Groovy | Spring Boot | Spring MVC | Spring Security | Spring Data JPA | Hibernate | Webservices (REST and SOAP) | Docker | Kubernetes | AWS | Jenkins

Technologies / Frameworks: Java 11 | Spring Boot | Spring MVC | Spring Security | Spring Data JPA | Hibernate | PostgreSQL | Flyway | React (TypeScript) | AWS | Docker

Allocated at the Institute of Informatics and Statistics of Social Security (Instituto de Informática e Estatística da Segurança Social - IIESS), in the team responsible for developing and maintenance of the internal framework, used in the automation tests routines, using Java 8, Cucumber, Maven and SVN

• Design custom framework used during tests by QA Engineers
• Working close to QA teams to ensure availability of capabilities and functionalities to the test framework
• Unify mobile and web drivers into the test framework, allowing teams to run tests across different platforms

Technologies / Frameworks: Java 8 | Selenium | Cucumber | SVN