Possibly a representation of the forces that are shaping his life but beyond his control. Is this "programmer" the person's concept of God, or Fate, or a symbol of some unconscious part of himself? Whomever or whatever this entity is, he experiences it as interrupting his search and preventing him from finding what he needs, even as teasing him. But at the same time it tears away the "false" reality he is living in, thus revealing another scenario for him to create a new self (the construction site).