- Development of financial intermediation systems, using Spring Boot, Spring Cloud, event-driven architecture with AXON framework, messaging with MQSeries, Apache Camel, CQRS, Hexagonal Architecture; - Working with Angular front-end, using angular material design;

- Development of Microservice to update electronic labels in stores;- Implementation of integration REST APIs for the POS Product Extended Warranty Project;- Development of POS microservice APIs for integration for payments via PIX;- Modifications to the integrator with the BSeller ERP to change the sales channel and indicate payment executed via PIX;- Development of several REST APIs for POS microservices (customer details, abandoned carts, search for forgotten carts, etc.);- Performance tuning at the POS, with justified reconfiguration of transaction parameters and connection pools with the SQL Server database;

- Integrations with industrial machines using Java and utGuard library for OPC communication;- Web applications using struts and Java Server Faces on the Glassfish application server;- Database access using JPA, Hibernate and legacy APIs in JDBC;- Integrations with industrial equipment, such as sealing machines, using ModBus industrial protocol and Jamod library;- Integration with SAP PI and PO using SOAP WebServices and also directly invoking RFCs using the sapjco.jar package;- Consumption and development of REST APIs developed in Spring and also in jax-rs;- Using and configuring Jenkis and Artifactory for library deployment and maintenance;- Consumption of APIs on AWS to send data about the status of industrial machines and equipment;- Use and configuration of Siemens Brownfield software for connectivity and data acquisition from industrial CNCs;- Participation in a project with a multidisciplinary team to develop VR/AR applications for the industrial environment;- Development of integration with industrial digital boards in C / C++ using JNI in Java;- Constant work on improvements and new developments;

Main Achievements:- Factory floor control system functions for: plate recorder, water and oil tightness testing machines (D08 Line) using MODBUS protocol, barcode label printing routines (D08 and X10 lines);- Implementation of low-level driver in C language (JNI), for line input sensors (X10 – Block Recorder) and activation of the plate recorder cradle (X10);- Assembly of HotTest file loading structure for engines (X10 line);- Analysis and documentation of the oil supply process (X10 line), which uses Elipse software (Supervisory similar to Scada) and Ladder code in the Rockwell PLC;- Implementation of process for traceability of engine components for Volvo;- Operational training of line operators for customer use of the system on the factory floor, especially for the implementation of the D08 line; - Mapping of system interface processes with SAP, particularly verification of Volvo traceability data, simulations of pointing and checking of engine nameplate data registered in SAP (PP)

Main achievements:- Development of the communication module between the microcomputer and the Pharos System;- Corrections and tests with the Pharos system management software;- Integration of the Pharos system with EJBs for data exposure via J2EE server, using proprietary APIs in C;

Main achievements:- Installation of the WebLogic Integration cluster, planning and execution of adaptations in applications to operate in a high availability environment;- Analysis of the FioranoMQ tool, proposal and development of a queue-based messaging solution in a high availability environment to serve GPS Locator customers with persistence of status messages from Nextel devices;- Writing of documents on standards and models to be adopted, with best practices for deploying Java applications on J2EE servers;- Analysis and correction of failure points in the integration interface with the LHS Billing system, BSCS_iX;- Creation of applications for stress testing of EBJs of the Java integration layer with BSCS_iX and tests using Apache JMeter;- Integration planning and development of EJBs for integration between applications to share data related to the employee access platform;

Main achievements:- Implementation of new portals using WebLogic Portal 8.1.3 and 10.2 (Apache Struts and Beehive);- Construction and maintenance of interfaces between systems using WebLogic Integration 8.1.3, WebLogic Studio 10.2;- Developing Data Services (WebServices for data provision) using the Aqualogic Data Services 3.0 (ALDS) tool;- Using the Spring framework, in the maintenance of programs for writing Lucene indexes using Solr, aiming to improve the data reading mechanism of some portals;- Analysis and support for problem solving in a production environment.

Main achievements:- Analysis of problems related to the interface between linked subsystems to detect and correct widespread failures in the process (MTS components – written in Visual Basic and Visual C++, proprietary DLLs written in C, Asp pages invoking components, inter-component relationships and dependencies, ActiveX exe, DB2 and SQL Server scripts, integration of WebServices with MTS – via C++ and RMI – JAS framework – Java);- Performance optimization of DB2 Content Manager and Websphere for digital document storage systems (checks, currency purchase and sale contracts, periodic bank account statement statements).- Maintenance and development of Java applications to interface with Internet and intranet systems.

- Data collection/requirements analysis and construction of initial stages of a tool to generate a unified control spreadsheet for Star Wars clients, with GFD/GFM;- Work with GLM/Europraxis to process local traffic data with the aim of consolidating information for creating a traffic plan model;- Information collection/development of prototypes for automating information extraction procedures, with GFC, to consolidate management reports for superintendents/directors with the aim of monitoring goals more specifically with the areas and reducing the time for preparing/summarizing information and making it available to management areas;- Assessment of requirements for integrating information between legacy subsystems between different environments (Oracle, Teradata, SQL Server), enabling more effective data extraction to meet the work requested from GFM.- Maintenance of a robot to access CSO data (CICS) for qualitative verification of the information extracted in the work;

Main achievements:- Maintenance of drivers for communication with credit bureaus. These drivers were written in C# and VB . Net and are used to capture context information from information providers (bureaus) so that they can be processed/evaluated according to pre-configured criteria in Crivo. The drivers work with information in XML.- Creation of a demonstration program (written in Visual Basic 6) for Nextel, to interface with the Crivo Server via Creditalk API, via TCP Socket.- Preparation of descriptive documents (manuals and additional examples) on how to use the Creditalk API

Main achievements:- Implementation of an interface (gateway) between the construction analysis and cable dimensioning system (CEANA) and the common analysis system (CA), in Visual Basic, with access to the SQL Server 2000 database and .DBF files of the CEANA system. Access to the DBF files is done via an API implemented by third parties in a proprietary DLL (API written in C).Since both systems are for cable analysis (which is the company's main business), there are several engineering standards and technical conventions that were used in the procedures for translating and generating data for the target system.- Testing and implementation of new fields in the analysis data visualization system (VDAN).

Main achievements:- Implementation of the electronic health transaction system (TES) client in VB6 and VC++;- Maintenance and implementation of internal systems in VB6, ASP, JSP - using IBM WebSphere - (Access management, terminals, card activation, billing, etc.), using Informix database in HPUX system;- Collection of information to add new functionalities to existing systems;- Preparation of manuals on the TES system and specification of new functionalities of the billing system;- Support in the integration of the TES system client OCX with Delphi to add transaction capacity to the client system;

Purpose: Operationalization of the MS Visual Basic 6.0 update course.

Purpose: Completion of a project for control software for a verticalized warehouse at Viracopos Airport (Warehouse Management System – SGA).- developed in C++ Builder, using an Oracle 8.i database and a PLC communication simulation software developed in Visual Basic 6 that was improved during the project;

Main achievements:- Creation of database structure layouts, triggers, stored procedures and DTS packages.- Creation of reports using Crystal Reports.- Creation of new data entry and correction screens for specific projects.- Preparation of a course on DB2 and Microfocus Cobol.- Construction and maintenance of Java applets.- Construction of pages for data query via the Internet/Intranet.- Optimization of database structures (normalization/tuning).- Restructuring of systems to adapt to the use of 3 abstraction layers using components (running under MTS) written in Visual C++ and Visual Basic.

Main achievements:- Development and maintenance of systems written in C, C++, for industrial automation;- Training of work teams to use the SARP program (Time Clock Access Server) in partnership with IBM for the city of São Paulo;- Support for problems with databases managed by DB2 (creation of access points, protocol configuration, backup, restore and replication tests to analyze the feasibility of implementation in mission-critical systems);Providing services to IBM, Volkswagen, Philips, Ford, CSN, Vale do Rio Doce.