A unique hybrid of Technical Support (AP Cellular), Real Estate Sales (Larney Properties), and Entrepreneurship (JO4 BREW). Proven ability to bridge the gap between complex technical infrastructure and business growth.
Hello! I'm Jonathan Roets, a passionate Python developer and cybersecurity specialist with expertise in web design and Django framework development. My journey began with a diploma in Information Technology, and I've since specialized in secure web applications, ethical hacking, and hardware automation.
I thrive on building clean, secure, and functional digital experiences—whether it's developing intuitive websites with Django, creating Python automation scripts, or exploring cybersecurity tools like BadUSB and Pwnagotchi for ethical penetration testing. My expertise spans both front-end design and back-end security implementation.
Diploma in Information Technology (DIT), Richfield College.
Nigel, South Africa
English, Afrikaans
My technical toolkit bridges the gap between hardware, software, and business strategy. From engineering AI-driven ERP systems to prototyping IoT cattle tracking solutions, I focus on building technology that solves real-world operational challenges.
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Intermediate/IoT
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A comprehensive Django-based web application for tracking cattle data, breeds, and weights with a secure database and user authentication system.
Python-based desktop application that automatically organizes files by type, date, or custom rules using an intuitive Tkinter GUI interface.
A modern, responsive portfolio website showcasing web design skills with dark/light mode, animations, and cross-browser compatibility.
A text-based adventure game developed in Python featuring branching storylines, inventory management, and dynamic character interactions.
mid-sized online electronics retailer facing challenges with customer retention and inventory management. This project analyzes 24 months of transactional data to identify high-value customers, pinpoint profitable product lines, and uncover seasonal sales dips. The insights generated from this SQL analysis are currently being used to restructure the Q3 marketing budget and launch a targeted "Winter Slump" recovery campaign.
Built a localized cybersecurity environment to perform ethical hacking. Outcome: Successfully identified and documented vulnerabilities in network hardware (Ricoh Printer exploit) and established a secure VPN-tethered lab.
Specialized in enterprise-level software development and system architecture. This curriculum provided the foundation for building scalable business solutions, covering full-stack development with Python, C#, and C++, alongside advanced database administration and network security protocols.
Focused on mastering SQL for database management.
Studying for CompTIA Network+ certification, covering network technologies, installation, and configuration.
Completed the TryHackMe Pre-Security learning path, covering cybersecurity basics, Linux fundamentals, and web attack analysis.
Managed end-to-end business strategy, advertising, and technical infrastructure.
Focused on technical troubleshooting, data integrity, and hardware maintenance.
Specialized in sales operations, marketing strategy, and client negotiations.
Looking for a Python developer with cybersecurity expertise or need a custom web design? I'm available for freelance projects, security assessments, and ongoing development work.
Thank you for reaching out. I'll get back to you soon regarding your Python development or cybersecurity needs.