This is exactly what I would do ideally except I couldn't. I can understand that working in startups you would overlook alot of theory and due to hectic nature

This is exactly what I would do ideally except I couldn't. I can understand that working in startups you would overlook alot of theory and due to hectic nature low quality calls(code/architecture explanation) are not appreciated. And that's why the first thing I ask during a technical interview is "Do you have internal documentation?".