His parents ran the Dix Insurance Agency Ltd. on West 41st Avenue in Vancouver until 2011 when his father retired and sold the business.

The Vancouver Sun summarized his work in this position as "successfully encouraging more school boards to offer French immersion programs.

"[2] From 2001 to 2005 Dix was a political commentator in various media, writing a column for the Victoria Times-Colonist and The Source, a prominent intercultural newspaper in Vancouver.

[10] As MLA, he cites among his achievements "bringing insulin pumps to children with Type 1 diabetes and his work on a successful campaign to stop three schools from being closed in Vancouver-Kingsway.

The last candidate to publicly launch his leadership bid, Dix campaigned on a platform of eliminating the HST, rolling back reductions in the corporate tax rate, supporting the redirection of carbon tax revenue to pay for public transit and infrastructure that reduces greenhouse gas emissions, supporting an increase in the minimum wage rate to $10 per hour, creating a provincial child care system, restoring grants to the post-secondary students, reducing interest on student loans, and restoring the corporation capital tax on financial institutions.

"[17] However, in a result that shocked the party and political pundits, the BC Liberals won a fourth majority government.

[23] On August 30, 2021, Dix announced an initiative to bring 4000 housekeepers and food service workers in provincial hospitals back under government employment by March 2022.

This was an effort to reverse the fallout of the British Columbia Liberal Party administration passing the Health and Social Services Delivery Improvement Act in January 2002.

Following the 2024 election, in which healthcare was a major issue, Dix was shuffled out of the health file by Premier Eby and was named Minister of Energy and Climate Solutions.