Mastercard job offer accepted

I recently accepted a role at Mastercard as a SRE. Within the offer letter, I noticed it mentioned there is a 6 month “observation period”. My ask is, what is the level of difficulty programming for Mastercard? I have some experience in bash and python scripting which is what the hiring manger was looking for. I told him during the interview on the scale of 1 - 5 (5 being best), I am a 3 for bash and 2.5 for python but willing to learn and take on new challenges. I would like some input as a way to better prepare myself as I am a bit worried of this “observation period” and unknown the difficulty of an SRE and expectation to ramp up in 6 months. Edit: TC 98K I am coming from a 2 year background as cloud support with Windows background