Quinten Zijlstra

A web-based WhatsApp business dashboard built for internal use at Dokwurk. It integrates with the WhatsApp Cloud API to manage conversations, assign chats to employees, and send AI-assisted responses. The dashboard provides real-time chat updates via WebSocket and includes an admin panel for user and settings management.

I built this portfolio website from scratch to showcase my projects and development skills to recruiters and employers. What makes it different from a typical portfolio is that every project includes a full version history timeline with screenshots and videos, so you can follow exactly how my work evolved over time. I manage all content through a password-protected admin panel I built myself, with drag-and-drop media uploads and a live preview. The site is available in both English and Dutch and works on any device. I wrote the entire backend by hand in plain PHP 8.1 no frameworks, no shortcuts backed by a MySQL database, styled with Tailwind CSS, and running on Apache. Security was a priority throughout: session-based authentication, CSRF protection on every form, and bcrypt password hashing.