Hey friend, don't take it personally. A layoff indicates a failure (of planning, of budgeting, or whatever) at a much higher level of the organization than you

Your position may have been opened before the layoff decision was made, so they decided to leave it open so as not to raise suspicions (managers will rightfully get upset if headcount is taken away from them with no explanation). They might've know the number of people they needed to cull in January, but not decided where it would happen.

There's a lot of work in Seattle. If you're cunning maybe you can get a second hiring bonus in Q1 2019.