ThembaMndebele
Frontend developer. I build fast, accessible React and TypeScript products — about four years of shipping interfaces people actually use.
Open to remote rolesSouth AfricaReact · TypeScript · Next.js
01 — Selected work3 flagship case studies
Thoughtfully built. Ready to explore.
01Nest

A dependable home for saved references
An offline-first bookmark library for collecting references, organising them into collections and finding them again. Browser imports, portable encrypted backups and optional sync keep the core library useful without an account.
React / Next.js / TypeScript / IndexedDB / Tailwind CSS
- Review browser imports before adding them to a personal library
- Organise collections and retrieve references through search
- Export, restore and recover browser-local data
02Billora

Make municipal account changes understandable
A South African municipal account workspace for reviewing PDF statements, comparing monthly charges and preparing billing-query evidence. Personal documents stay in the browser, with full workspace backups and clearly labelled examples.
React / TypeScript / Vite / PDF.js / IndexedDB / Three.js
- Local PDF extraction with evidence and human review
- Explainable month-to-month comparisons and query preparation
- Downloadable evidence packs and encrypted workspace backups
03Hydromental

Elementals · an interactive chemistry playground
Explore all 118 chemical elements through interactive atoms, plain-language stories and everyday connections. A playful chemistry experience with sourced properties, games and a personal discovery journal.
React / Next.js / TypeScript / Three.js / Motion / Radix UI
- Interactive atoms, element search and property comparisons
- Chemistry games, quizzes and a spaced-review queue
- Saved discoveries, progress backups and offline exploration
More projects & experiments.
Small ideas, fully explored. Take a closer look.
02 — ToolkitUsed in production
- Frontend
- React, Next.js, TypeScript, JavaScript, Tailwind CSS, HTML5, CSS3
- Architecture
- Component architecture, state management, REST APIs, responsive design, Git
- Quality
- Vitest, Playwright, accessibility (a11y), frontend testing
- AI-assisted
- Gemini, DeepSeek, Kimi, OpenCode, Cline, CodeRabbit
03 — AboutDesign × engineering
Four years building React products, with a design background that shows in the details — spacing, states, accessibility, and how it holds up on a slow connection.
I care about design-system consistency, responsive layouts and resilient state. I use AI tooling to speed up research, bug hunts and test writing, while owning architecture, reliability and security myself.