What Cipsoft employee has been there the longest?

Question

Besides the four founders. Who has worked the longest at Cipsoft? and since when he or she has been working there

Answer 1

Solkrin was the first official employee of Cipsoft, started on july 8th 2003, he is still working there.

Source: https://tibia.fandom.com/wiki/Solkrin

Additional info: Knightmare has become official employee of Cipsoft one month later, on august 1st 2003, but he was unofficially helping them with the game development since 1997 or 1998, and played the game since 1997. He is still working there, and it seems he is the oldest unofficial worker. Tibia was launched on january 7th 1997. Knightmare interviews and stories