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I am a senior software developer with 15 years of hands-on experience in VBA, Excel, Access, and C#, SQL Server, and API integration. I’ve built and modernized automation systems, including SAP GUI integrations, and have worked across finance, manufacturing, mining, infrastructure, transportation, and automotive sectors. I enjoy turning requirements into reliable, scalable solutions, and I’m comfortable collaborating with stakeholders to drive the full development lifecycle from design to deployment and maintenance. I also have experience migrating legacy tools toward Azure-based cloud models, creating virtual machines for API publishing and internal websites, and enabling cross-system integrations. I’m bilingual in English and Portuguese, and I value teamwork, knowledge sharing, and delivering practical, user-friendly tooling that improves efficiency and accuracy.…I am a senior software developer with 15 years of hands-on experience in VBA, Excel, Access, and C#, SQL Server, and API integration. I’ve built and modernized automation systems, including SAP GUI integrations, and have worked across finance, manufacturing, mining, infrastructure, transportation, and automotive sectors. I enjoy turning requirements into reliable, scalable solutions, and I’m comfortable collaborating with stakeholders to drive the full development lifecycle from design to deployment and maintenance. I also have experience migrating legacy tools toward Azure-based cloud models, creating virtual machines for API publishing and internal websites, and enabling cross-system integrations. I’m bilingual in English and Portuguese, and I value teamwork, knowledge sharing, and delivering practical, user-friendly tooling that improves efficiency and accuracy.

Moacir Gouveia de Castro

Full Stack Developer, Web Developer, Programmer, +3

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I am a senior software developer with 15 years of hands-on experience in VBA, Excel, Access, and C#, SQL Server, and API integration. I’ve built and modernized automation systems, including SAP GUI integrations, and have worked across finance, manufacturing, mining, infrastructure, transportation, and automotive sectors. I enjoy turning requirements into reliable, scalable solutions, and I’m comfortable collaborating with stakeholders to drive the full development lifecycle from design to deployment and maintenance. I also have experience migrating legacy tools toward Azure-based cloud models, creating virtual machines for API publishing and internal websites, and enabling cross-system integrations. I’m bilingual in English and Portuguese, and I value teamwork, knowledge sharing, and delivering practical, user-friendly tooling that improves efficiency and accuracy.…I am a senior software developer with 15 years of hands-on experience in VBA, Excel, Access, and C#, SQL Server, and API integration. I’ve built and modernized automation systems, including SAP GUI integrations, and have worked across finance, manufacturing, mining, infrastructure, transportation, and automotive sectors. I enjoy turning requirements into reliable, scalable solutions, and I’m comfortable collaborating with stakeholders to drive the full development lifecycle from design to deployment and maintenance. I also have experience migrating legacy tools toward Azure-based cloud models, creating virtual machines for API publishing and internal websites, and enabling cross-system integrations. I’m bilingual in English and Portuguese, and I value teamwork, knowledge sharing, and delivering practical, user-friendly tooling that improves efficiency and accuracy.

Available to hire

I am a senior software developer with 15 years of hands-on experience in VBA, Excel, Access, and C#, SQL Server, and API integration. I’ve built and modernized automation systems, including SAP GUI integrations, and have worked across finance, manufacturing, mining, infrastructure, transportation, and automotive sectors. I enjoy turning requirements into reliable, scalable solutions, and I’m comfortable collaborating with stakeholders to drive the full development lifecycle from design to deployment and maintenance.

I also have experience migrating legacy tools toward Azure-based cloud models, creating virtual machines for API publishing and internal websites, and enabling cross-system integrations. I’m bilingual in English and Portuguese, and I value teamwork, knowledge sharing, and delivering practical, user-friendly tooling that improves efficiency and accuracy.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Fluent

Work Experience

Specialist VBA Developer at Fidelity Investments

August 1, 2024 - July 1, 2025

Provided end-to-end support for Excel/Access/VBA macros integrated with IBM Mainframes and SQL Server, including troubleshooting, enhancements, and API integration using SOAP (XML) and RESTful (JSON). Trained users, supported business operations, and contributed to transitioning legacy tools to Azure-based cloud infrastructure for improved performance and reliability.

Specialist VBA Developer at Mofla IT Solutions

December 1, 2023 - June 1, 2024

Developed Restful APIs in C# for SQL Server integration with Salesforce (CPQ/Pricing, Client Accounts, Products, Invoices). Created virtual machines to publish APIs (XML/JSON), set up SQL Server databases, and internal websites. Migrated billing reports from Excel to C# in internal web format and upgraded spreadsheets to MS Access systems.

Specialist VBA Developer at Peloton Consulting Group - LATAM

July 1, 2023 - December 1, 2023

Developed a tool for integrating and generating performance reports, including data import, query creation, and financial reporting.

Specialist VBA Developer | MS Excel | MS Access at CCR Group

November 1, 2022 - May 1, 2023

Developed a budget management tool for highway concessions and electrical, road, buildings, lighting, and labor infrastructure. Implemented queries, reports, and scenario visualizations for costs and investments according to extensions, useful life, and bid details.

Specialist VBA Developer | Excel | Access | SQL Server | C# Aspnet Core at Mofla Technology

December 1, 2019 - November 1, 2022

Created RESTful APIs in C# for SQL Server integration with Salesforce; published APIs via virtual machines; managed SQL Server databases and internal websites. Migrated billing reports from Excel to C# and enhanced spreadsheets to MS Access systems.

Specialist VBA Developer | MS Excel | MS Access at Mahle

February 1, 2019 - October 1, 2019

Developed a Price Management Spreadsheet for standardizing CBD transcription, including cost breakdowns, data management, and forecasting up to four years with currency and material price considerations; produced historical and forecast reports.

Specialist VBA Developer | Excel | Access | SQL Server | VBA x SAP at Itaú bank

October 1, 2018 - January 1, 2019

Developed management software for invoicing maintenance costs at bank branches. Imported service order data into SQL Server, performed revisions, and generated invoices in SAP via SAP GUI, saving substantial time and reducing errors.

Specialist VBA Developer | MS Excel | MS Access at Marchon Eyewear

May 1, 2017 - July 1, 2018

Integrated sales closures with ERP using SQL Server and Excel templates; created reports such as Gross Margin, Average Sales Price, Profit & Loss, and Sales by Channel.

Specialist VBA Developer | MS Excel | MS Access at Weir Minerals

March 1, 2015 - May 1, 2017

Built budgeting and sales planning software, coordinating with marketing and regional managers to register annual sales plans and budgets; consolidated regional data and produced central reports, plus action plans for projects and budgets.

Specialist VBA Developer | MS Excel | MS Access at Cummins Inc.

December 1, 2011 - February 1, 2015

Developed Balanced Scorecard software for KPIs across Financial, Customer, Internal Processes, and Learning & Growth perspectives; created and monitored action plans, meeting minutes, and management reports.