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Aguma Charles

@agumacharles

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Consulting Software Engineer at Entelec Control Systems building .NET 8 APIs, React interfaces, and IoT device drivers.

Uganda

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At Entelec Control Systems, I build and maintain RESTful Web APIs in C# and .NET 8, along with React front ends, Blazor screens, and WPF tools. I also write IoT device drivers that connect field devices to the backend.

At Ampati, I designed and built backend services and APIs on Azure. I cut response times by 35 percent by optimizing SQL Server and Azure SQL queries, indexes, and schemas, and set up CI/CD pipelines in Azure DevOps.

Across roles at Entelec Control Systems, Bimsoft NV, VIA, and Crystal Clear, I’ve worked on web APIs and applications using .NET, Angular, and SQL Server. My work has included securing APIs with OAuth2 and JWT, writing tests, and modernizing a legacy VB WinForms application.

Experience

Work history, roles, and key accomplishments

Current

Consulting Software Engineer

Current

Entelec Control Systems

Jul 2025 - Present (1 year 3 months)

Build and maintain RESTful Web APIs in C# and .NET 8 on SQL Server and MongoDB. Develop React front ends, WPF desktop tools, Blazor web screens, and C# IoT device drivers.

C#.NET 8+REST APIs SQL Server MongoDB React WPF Blazor xUnit IoT

Senior Backend Engineer

Ampati

Jan 2024 - Jun 2025 (1 year 5 months)

Designed and built backend services and RESTful Web APIs in C# and .NET 8 on Azure. Cut response times by 35% through SQL optimization and mentored 3 developers.

C#.NET 8+Azure SQL Server Azure SQL OAuth JWT Azure DevOps CI CD Mentorship

Software Engineer

Entelec Control Systems

Dec 2021 - Nov 2023 (1 year 11 months)

Built RESTful Web APIs with ASP.NET Core and C# on SQL Server. Documented APIs with OpenAPI and Swagger and added OAuth2 and role-based access control.

C#ASP.NET Core SQL Server OpenAPI Swagger OAuth RBAC OWASP

Analyst Developer

Bimsoft NV

Jul 2020 - Nov 2021 (1 year 4 months)

Built Angular front ends in TypeScript on ASP.NET Core Web APIs. Optimized SQL Server and MongoDB queries and built WPF desktop features using MVVM.

Angular TypeScript ASP.NET Core CQRS SQL Server MongoDB WPF MVVM Code Review

Full Stack Engineer

VIA

Jan 2019 - Jun 2020 (1 year 5 months)

Rewrote a legacy VB WinForms application as a .NET Core backend with a JavaScript front end. Wrote unit and integration tests with xUnit and Moq.

C#VB.NET .NET Core JavaScript xUnit Moq Agile Scrum

Software Engineer

Crystal Clear

Aug 2017 - Dec 2018 (1 year 4 months)

Built backend services and Razor web pages with ASP.NET MVC on .NET Framework and Entity Framework for financial platforms. Wrote complex SQL and stored procedures.

C#ASP.NET MVC .NET Framework Entity Framework SQL Server Stored Procedures OAuth