Interviewing for my first DS role

As stated, I’m interviewing for my first DS titled role. I currently work as an analyst who often dabbles in model development and deployment, primarily with forecasting tools.

I’ve made it to a technical review interview, where I will need to prove my competency. I’ve never formally worked in a DS role, so I’m unsure what it is that should be showcased. What skills, tools, key understandings, etc… would be good to brush up on?

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