Avuyile Mthembu

Full-Stack Software Developer & Creator of Vylex

Full-stack developer building commercial client websites and web applications. Working with TypeScript, React, Next.js, PHP MVC, and relational database systems to build software for businesses across South Africa.

TypeScript React & Next.js Node.js PHP 8 (MVC) MySQL & PostgreSQL Firebase & Supabase Android (Java) Three.js / WebGL Tailwind CSS

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About Me

I am a software developer and the creator of Vylex, based in South Africa. I hold a Diploma in Systems Development (NQF Level 6) from Boston City Campus, combining formal education with active, self-directed learning.

My background spans from foundational IT and networking to full-stack development. I build production client websites, database-backed web applications, and Android software, with a focus on writing clean, maintainable code.

I prioritize clear structure, relational database schema design, and straightforward, functional user interfaces that solve real client requirements.

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Technical Expertise

Core technologies, principles, and tools I use to deliver production-ready software.

Front-End

Core: React, Next.js, TypeScript, JavaScript (ES6+)
Core: Tailwind CSS, Motion (Framer Motion)
Routing: React Router
Foundational: HTML5, Modern CSS, Accessibility

Back-End & DB

Primary: Node.js, Express.js, REST APIs
Primary: Firebase (Auth, Firestore, Storage)
Primary: Supabase (Postgres), SQL
Proficient: Java & REST APIs, PHP, MySQL, SQLite

Mobile

Foundational: Android Native (Java), XML
Concepts: Android SDK, Material Design

IT & Infrastructure

Core: Hardware & Networking
Core: IT Support (CompTIA A+ Concepts)
Core: Windows & Linux Environments

AI Integration

Core: Google Gemini API, OpenRouter API
Concepts: RAG Agents, LLM-powered Features
Applied: Technical Workspaces, Document Analysis

Visualization

Core: D3.js, Recharts
Core: Leaflet Maps
Applied: Interactive Dashboards & Data Charts

DevOps & Workflow

Core: Git & GitHub Version Control
Core: Vite (Build Tool), Vercel (Deployment)
Core: CI/CD Pipelines
Concepts: Agile/SDLC & System Design

Featured Work

Web applications, client websites, and 3D graphics projects.

Software Studio

Vylex

Company website for Vylex, a custom software and web engineering studio. Displays custom business systems, client portals, and web development services, along with pricing packages, client case studies, and business tools.

Featured: Custom Systems · Web Engineering · Pricing Hub

Visit Vylex

EdTech & Labs

Vylex Nexys

Educational technology and STEM learning tools built for South African students and educators. Includes VyLab (virtual science lab simulations aligned with CAPS), mathematics engines, and academic calculators.

Featured: VyLab · APS Calculator · Nexys Tools

Visit Vylex Nexys

10 Live Client Sites

Client Websites

Commercial websites built for South African businesses and organizations, including Makhaswa Holdings, XYZ Solutions, Sethu Mkhwanazi Attorneys, AJ Vehicle Registration, Luxury Shutters & Blinds, and Amabongo Solutions.

Featured: 10 Client Sites · Web Applications · Backend Codebases

View All 10 Client Websites

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