DEVELOPERS The engineer behind CORE NEXUS

Tapiwanashe Bernard Mabvudzi

Software Developer

I build business platforms, management systems and custom software on .NET.

Work with me See my projects
Portrait of Tapiwanashe Mabvudzi seated at a desk in front of a CORE NEXUS poster
Tapiwanashe Bernard Mabvudzi Software Developer · CORE NEXUS
About

Hello, I'm Tapiwanahe B Mabvudzi

I'm a software developer from Zimbabwe and the engineer behind CORE NEXUS. I design and build business platforms, management systems and custom software on .NET, using Clean Architecture so systems stay maintainable as they grow.

My work ranges from a national tourism platform (Zim Voyage) and an AI-powered family-history system (MemoryOS) to school management systems, an e-commerce platform for a Harare retailer and a multi-school group system. Every project is built around the way the business really works, not around a template.

Expertise

What I work with

The tools and practices behind the projects below.

Back end

  • C# and .NET 10
  • ASP.NET Core (Razor Pages, MVC, Web API)
  • Entity Framework Core
  • SQL Server
  • ASP.NET Core Identity and two-factor sign-in
  • MediatR and FluentValidation

Architecture

  • Clean Architecture
  • Domain-driven design and CQRS
  • Modular monoliths
  • Multi-tenant systems
  • API-first design

Front end

  • Razor Pages and Blazor
  • Bootstrap 5 and Tailwind CSS
  • MudBlazor
  • Progressive web apps
  • Responsive, accessible interfaces

Quality and security

  • Unit and integration testing with xUnit
  • Role- and permission-based authorization
  • Audit trails and structured logging
  • Server-side validation and rate limiting

Integrations and AI

  • REST APIs
  • Email, SMS and payment provider abstractions
  • Embeddings and retrieval-augmented AI (OpenAI, NVIDIA)
  • PDF generation
Projects

Things I've built

Each project links to its write-up, and to a live site or demo where one is available.

E-commerce Live

AKGadgets Online Sales Platform

A production e-commerce platform for a Harare phone and electronics retailer, with a configurable commission engine for the technology partnership.

ASP.NET Core Identity · Entity Framework Core · SQL Server · Bootstrap
Education

PMAT School Group System

A multi-tenant platform giving four boarding schools and a head office their public websites plus one shared management system.

REST APIs · C# · ASP.NET Core · Razor Pages
Education Live

Atlantic House International School

A school management system and public website in one: academics, admissions and billing, with a CMS staff can edit without code changes.

ASP.NET Core Identity · PWA · SQL Server · Entity Framework Core
Automotive

Vehicle Import & Dealership Platform

A digital sales and vehicle-import system for a car dealership, from "I'm looking for this car" through quotation, shipping and delivery. In development.

ASP.NET Core · C#
Software

Duka

Draft - add a description in Admin > Portfolio.

ASP.NET Core · C# · Clean Architecture · REST APIs

Have a project in mind?

Configure it online for an itemised estimate, or get in touch to talk it through with Tapiwanahe B Mabvudzi.

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