Leonardo Verissimo Email and Phone Number

Technical leadership and development of the Beleza na Web project aimed at beauty professionals. I worked on the development of front-end microservices, using React, next.js and standard Javascript, and back-end microservices, using Kotlin and Groovy mainly.I created technical documents (spikes) to elucidate future demands and unit and integration tests.

Development, analysis and mentoring for junior developers in the application development initiative for Loggi's delivery partners, focusing on the billing part. Django/Python and Kotlin were used on the backend, accessing Elasticsearch and Postgres databases, and React on the frontend. Afterwards, development and analysis in the optimization of the package sorting system in last mile centers, using Django/Python with the Postgres database.

Development and maintenance of the mobile application made on Android with Java and Kotlin. New features include integration with SAT fiscal issuance hardware and integration with leading delivery applications in the national market. Maintenance of the restaurant application made in Flutter. Maintenance of the server application done in .Net and C#.

Development and design of new software linked to the use of digital certificates, such as: - a desktop application (Mac and Windows) to request signatures remotely and manage a portfolio of certificates, carried out in C++, Objective-C and QT.- two native mobile applications (Android and iOS) for storing private keys and signatures, carried out in Java and Objective-C.- server-side application for storing certificates and private keys in the cloud and signing services, carried out in Spring Boot.- web application for managing certificates in the cloud, in Angular 6.- two native mobile applications (Android and iOS) for managing certificates in the cloud, carried out in Kotlin and Swift.Maintenance of other company software, made in Java or mobile applications, both Android and iOS, as well as Cordova.

Desenvolvimento, manutenção e design de um novo software para emissão de notas fiscais eletrônicas (NFe e CTe), integrando a sistemas corporativos existentes, feito em Java Web para Tomcat, usando banco de dados Oracle e Spring MVC.

Desenvolvimento e manutenção de sistemas Java EE em alguns projetos de clientes:- Mapfre: desenvolvimento no sistema de monitoramento de veículos por rastreamento GPS e controle de aviso de sinistro, utilizando Vraptor, Spring e Hibernate sobre Jboss e Tomcat utilizando banco de dados Oracle.- SulAmérica: Sistema web de controle de segurados e associados para a SulAmérica, utilizando Struts e EJB 2.1 sobre Websphere utilizando banco de dados Oracle.- Mapfre: Manutenção do sistema de cadastro e monitoração de segurado para as agências bancárias, dentro da metodologia Scrum e utilizando JavaServer Faces (JSF), RichFaces, Spring e Hibernate sobre o servidor Apache Tomcat, com banco de dados Oracle.- Aymoré: Desenvolvimento e manutenção de sistema para controle de garantias de financiamento para as montadoras Renault e Suzuki, modelado com UML, e utilizando EJB 2.1 e JavaServer Faces (JSF) sobre IBM Websphere, comunicando-se com serviços de mainframe.

Sistema de monitoramento de rede e dispositivos conectados, utilizando C++ sobre Linux e Java, modelado com UML e utilizando os protocolos de comunicação TCP, SNMP e HTTP e envio de documentos XML, com banco de dados MySQL.

Customização do sistema de arrecadação e cobrança das ligações, desenvolvido em C sobre Unix e Java sobre o servidor BEA Weblogic, utilizado o banco de dados Oracle.