Avuyile Mthembu

Software Developer (React, Next.js, Node.js & Java)

I build scalable web, mobile, and enterprise applications. My broad background spans modern full-stack development, database architecture, and IT infrastructure, allowing me to deliver robust, end-to-end solutions.

TypeScript React Next.js Node.js Tailwind CSS Firebase Supabase PostgreSQL Java IT Infrastructure

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About Me

I am a multidisciplinary IT professional and the founder of Vylex, based in South Africa. Driven by curiosity and a passion for technology, I combine formal education, including a Diploma in Systems Development (NQF Level 6) from Boston City Campus, with continuous self-directed learning.

My approach is broad by design. I believe a developer who understands the full stack, from the underlying physical hardware to the interface a user touches, builds superior software. Starting with a strong foundation in IT support and networking, I have evolved into a full-stack developer capable of conceptualizing, designing, and deploying comprehensive web, native mobile, and enterprise applications.

I design reliable and scalable systems utilizing industry best practices like DRY (Don't Repeat Yourself) and KISS (Keep It Simple). I focus my energy on writing high-quality code, optimized database design, and solving complex architectural challenges.

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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
Concepts: RAG Agents, LLM-powered Features
Applied: Document Analysis, AI Tutoring

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

Professional engagements, experimental builds, and personal publications.

Vylex

Founder of Vylex, a technology cooperative delivering production tools, custom web development, and end-to-end IT solutions.

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Vylex Nexys

A unified digital workspace combining academic productivity utilities, STEM solvers, and virtual science labs into a single, high-performance web workstation designed for student success.

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