Collingwood have added another experienced member to their coaching staff, as Justin Longmuir makes the move from West Coast to the Pies.

Longmuir will join Nathan Buckley and will oversee Collingwood's backline and defensive unit, after seven years as an assistant at the Eagles.

The former Fremantle forward also served a year at the Dockers as a development coach in 2010, before switching WA clubs to West Coast.

Longmuir was a development coach in his first season before taking care of the forwards between 2012-2016, and finally became a senior assistant coach under Adam Simpson in 2017.

“Justin has been an integral part of two successful football programs, particularly with West Coast during a period of sustained finals football, so we look forward to him bringing that wealth of knowledge into our coaching team,” Collingwood's General Manager of Football Geoff Walsh told collingwoodfc.com.au.

“He has a well-balanced resume, having overseen the forward line, ruck, tackling and development before taking on the senior assistant role. We think that diverse experience coupled with his strong playing and leadership background makes Justin a really valuable asset for our program.”

Longmuir said he was excited about his new role, and can't wait to get started and grow his career.

“I see this as a great opportunity to further my coaching career but more importantly to help Collingwood take the next step and achieve sustained success. Playing a role in that as part of the coaching group is what really excites me,” Longmuir told the club's website.

Longmuir's addition sees him sit alongside Robert Harvey and Brenton Sanderson under Buckley, while fellow 2018 new recruit Matthew Boyd heads up Collingwood's development alongside Academy coaches Tarkyn Lockyer and Brad Gotch.