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Wilson Chaveiro

@wilsonchaveiro

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.NET developer at DMCard building administrative applications and APIs, and implementing RabbitMQ integration.

Brazil

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What I'm looking for

I’m seeking a .NET / Delphi Developer role.

At DMCard, I develop and maintain collection systems and legacy applications for payment scheduling, installment options, and file submissions to Serasa. I also create and maintain .NET applications and APIs for administrative web systems using .NET 8 and SQL Server.

I'm currently implementing RabbitMQ message queueing for system integration. My work has also included developing .NET systems across banking, e-commerce, and customer loyalty, as well as Delphi systems for electronic invoicing and POS.

Experience

Work history, roles, and key accomplishments

Current

.NET / Delphi 5 Developer

Current

DMCard

Apr 2023 - Present (3 years 6 months)

Developed and maintained collection systems and legacy applications for payment scheduling, installment options, and file submission to Serasa using Delphi 5 and SQL Server. Also created and maintained .NET applications and APIs for administrative web systems using .NET 8 and SQL Server, and implemented RabbitMQ for system integration.

Delphi 5 SQL Server .NET 8+C#REST APIs RabbitMQ

.NET Developer / Systems Analyst

Banco Mercantil

Apr 2022 - Apr 2023 (1 year)

Developed and maintained data collection systems for SonarQube, created APIs for SQL Server data insertion, built Power BI dashboards for management teams, and configured pipelines in Azure DevOps using .NET and SQL Server.

.NET SQL Server SonarQube Power BI Azure DevOps C#

.NET Developer (C#, JavaScript)

Via Varejo

May 2021 - Apr 2022 (11 months)

Developed and maintained insurance and service sales systems for Extra, Ponto Frio, and Casas Bahia portals using .NET and SQL Server.

.NET C#JavaScript SQL Server

.NET Developer (C#)

LTM Digital

Feb 2020 - May 2021 (1 year 3 months)

Developed and maintained the Vivo Valoriza user management system using .NET and SQL Server.

.NET C#SQL Server

.NET Developer (C#)

Máxima Tech

Feb 2018 - Dec 2020 (2 years 10 months)

Developed and maintained the sales order system using .NET and Oracle Database.

.NET C#Oracle Database

Delphi Developer

NCA Informática

Dec 2016 - Feb 2018 (1 year 2 months)

Developed and maintained NFC-e and NFe systems using Delphi 7 with MySQL, including migration to version 4.0 of the electronic invoice standards.

DELPHI 7 MySQL NFC E NFe

Java Developer

HPS Tecnologia

Apr 2016 - Dec 2016 (8 months)

Maintained and developed the fleet tracking system and created a new mobile version using Ionic and AngularJS, with integration via SOAP and REST Web Services using NetBeans, Eclipse, MySQL, and PostgreSQL.

Java Ionic AngularJS SOAP REST NetBeans Eclipse MySQL PostgreSQL

C#/ASP.NET Developer

Rede Marajó de Serviços

Dec 2014 - Apr 2016 (1 year 4 months)

Developed and maintained the fleet management system using C# and PostgreSQL in Visual Studio .NET, including POS integration for the company's private credit card system.

C#ASP.NET PostgreSQL Visual Studio

Java Developer

Santri Sistemas

Apr 2013 - Dec 2014 (1 year 8 months)

Maintained and developed financial reports, accounting routines, and fiscal documents (NFe/NFCe) using Java (NetBeans) and Oracle 11g, communicating with SOAP services.

Java NetBeans Oracle 11g SOAP NFe NFCe

Education

Degrees, certifications, and relevant coursework

ServiceNow

Scripting in ServiceNow Fundamentals On Demand, ServiceNow Scripting

Completed Scripting in ServiceNow Fundamentals On Demand in May 2025.

ServiceNow

ServiceNow Administration Fundamentals On Demand, ServiceNow Administration

Completed ServiceNow Administration Fundamentals On Demand in May 2025.

ServiceNow

ServiceNow Platform Implementation On Demand, ServiceNow Platform Implementation

Completed ServiceNow Platform Implementation On Demand in June 2025.

ServiceNow

Application Development Fundamentals On Demand, ServiceNow Application Development

Completed Application Development Fundamentals On Demand in June 2025.

ScrumStudy

Scrum Foundation, Scrum

Completed Scrum Foundation certification in October 2018, covering agile practices.

Caelum

Java Web / JSF, Java Web / JSF

Completed Java Web / JSF course in May 2016, covering development of complete web applications using Servlets, JSP, Spring, Hibernate, Design Patterns, Ajax, and MVC.