You do have backups right? And even if you do, have you tested them recently? An untested backup is no backup at all. I'll work with your developer to create a comprehensive plan for what happens if data is lost, then implement it based on our plan.
When you only have a few developers and resources are tight, things like code reviews fall to the wayside, even if you have more than one developer on staff. Or maybe you only have a single developer and you don't have anyone to review code.
Code reviews are an extremely cost-effective way to increase the quality of your product. I'll review all code committed to your Git repository and give feedback at a fraction of the cost of a full time developer.
Busted app? Continuously breaking app? Need new features? I do custom Django app development, and I know my way around the frontend too.
You've built a successful online business but now your developer left and you don't have anyone to turn to if something goes wrong.
I'll completely manage your server and codebase. I'll provide emergency bug fixes in the event that an existing feature stops working. I'll be available for the occasional new feature or tweak. I'll provide security updates and backups to ensure your app stays around.