Walter started playing hockey at Frankenthal and in 2007 he switched to Dürkheimer HC, who he left in 2009 for Mannheimer HC. He moved to Harvestehude in 2012.[2] After six seasons with Harvestehude, he moved to Belgium to play for Dragons in Brasschaat.[3] After three seasons he left Dragons to play for Braxgata.[4] In May 2024 it was announced he would join Oranje-Rood in the Netherlands from the 2024–25 season onwards to replace the leaving Pirmin Blaak.[5]