Definitely self directed. But to be clear if I needed to learn something on the job I'd definitely consider spending some amount of time outside of work on it. You have enough to learn about the specific task, implementation etc.., that you don't really want to have the overhead of understanding the basic mechanisms of the technology as you are doing it. You aren't going to master anything without spending significant time, and if it doesn't interest you, you aren't going to do that in your own time. But at least you want to understand the basics so that you can communicate effectively.
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Definitely self directed. But to be clear if I needed to learn something on the job I'd definitely consider spending some amount of time outside of work on it. You have enough to learn about the specific task, implementation etc.., that you don't really want to have the overhead of understanding the basic mechanisms of the technology as you are doing it. You aren't going to master anything without spending significant time, and if it doesn't interest you, you aren't going to do that in your own time. But at least you want to understand the basics so that you can communicate effectively.