Still deciding between Seraphim or Ophanim, The character is an Architect. If a seraphim, they will be trying to find potential assistance in some grand project. looking for more intellectual or metaphysically inclined angels. Often gets into minor arguements with other seraphim in regards to government structure.

If an Ophanim, they would be looking to gain status so that they could implement ideas that they currently do not have permission to perform.

Either way, I'm thinking they have some fame after constructing a metaphysical elevator that makes travel across different layers of heaven much easier, perhaps some other angels might think that doing so was dangerous.