Head coach Ben Cairns has appointed the Scotland international to look after the County defence as the Bridgehaugh side embark on the inaugural Super 6 season.
Cairns said: "I first approached Pete a few months back about the opportunity and he was really keen from the start. He's obviously got a wealth of experience and knowledge on the playing front but what has really impressed me is the work he's already put in to this coaching role. He's clearly thought a lot about how we setup our defence and how he delivers this to the players. He's not new to coaching having had stints at both Glasgow Hawks and GHK and is currently undertaking his UKCC Level 3 course. Clearly playing remains his priority, he's still contracted with Glasgow for next season and he has a massive period coming up. We are all hoping he is on the plane to Japan and he has a great World Cup and we look forward to properly welcoming him into the club on his return."