[3][4] Born in Comox, British Columbia, Walker grew up in Qualicum Beach, where he operated a technology business.

[8] He resigned his town council seat in November 2020,[9] and was named Parliamentary Secretary for the New Economy by Premier John Horgan in the same month.

[10] On December 7, 2022 he was appointed Parliamentary Secretary for Sustainable Economy by Premier David Eby.

[11] In September 2023, he was dismissed from his position as a Parliamentary Secretary and removed from the BC NDP caucus following an internal investigation.

[12] In the 2024 British Columbia general election, he stood as an Independent candidate but was unseated by Stephanie Higginson from the NDP.