How do I join or concat 2 dataframes where I get a new column for each row where the left_on/right_on key is the same?

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Given 2 dataframes: DF1

ID Name
123 Jim
456 Bob

DF2

ID JobCode
123 H1B
456 H1B
456 H2B

I want to merge/join/groupby, not sure really such that the result is:

ID Name JobCode JobCode_x
123 Jim H1B
456 Bob H1B H2B

so kind of like a join, I need to be able to join data on a value but I want to add columns instead of adding rows, when there are multiple matches, and the number of matches cant be known upfront so it could need to add 10 columns.

I tried a horizontal concat but it doesnt seem to match on value I have also read up a bunch on groupby, but I can't get it.

any help would be appreciated.



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