Ne Polr would be my guess too if it wasn’t for the EJ temperament.
I realize my OP made them sound neurotic but the person also has many admirable qualities - assertive, extremely hardworking, driven, courageous, loyal, kind, reliable, and if they promise something you can be 120% assured they will deliver. And definitely an extrovert.
I thought about SEE but the person is almost all work and no play and I doubt any EP would be like that. I think 4D Te > 4D Se. Suppose LIE makes the most sense.