[sederien]

I'm not one to normally double-post, but I'm using this thread as a worksheet as well...

It seems that it would be best to split the sentence up grammatically first.

Thus:

"Diligent, motivated High Honors graduate" is our main subject to be followed by は.

(I might use 働き者 - Hard Worker here, but I have no cultural reference for if it's appropriate to refer to yourself as a "hard worker" as a promotional.)

"seeking" is our verb so the sentence will end with を探しています。 or proper variation thereof.

"an economic research or business analyst position" should precede を.

And it might be easiest to stop there and save the last part for a separate sentence.

So...

Diligent, motivated High Honors graduate は ビジネス分析者 か　経済学者の　仕事　を探しています。