Jordan, who was a key figure in Glasgow's victory last season and has made a big impact at international level since making his Scotland debut last autumn, says the opportunity to join Bristol Bears was too good to turn down.
"I've been here for over five years, so I think it's a good opportunity," Jordan said after Scotland's Six Nations win over Wales.
"I think it's a lot about growing as a person on and off the field, and it's an opportunity that I want to take.
"If I can grab that with both hands, it's going to make me a better player and a better person for it, I'd hope. So, yeah.
"It's always going to be a tough decision for anyone, but it's sport at the end of the day and I'm looking forward to the challenge ahead."