ArjanCodes is the YouTube channel and paid-course brand of Arjan Egges, a Dutch software engineer and academic (formerly Utrecht University faculty) — one of the most cited independent voices on Python software design and architecture. The channel focuses on the engineering disciplines underneath maintainable Python codebases rather than language tutorials.
His CourseFlix listing carries three ArjanCodes courses: The Software Designer Mindset (COMPLETE), The Software Architect Mindset (COMPLETE), and The 30-Day Design Challenge. Together the courses cover the senior-engineer mental model — design patterns, architectural decisions, and the trade-offs that show up in real production codebases.
Material is paid and aimed at intermediate-and-up Python developers ready to think about software design as a deliberate professional skill. For broader content, see CourseFlix's Python and System Design & Architecture category pages.
