He has been a Labor member of the Australian Capital Territory Legislative Assembly since 2016, representing the electorate of Murrumbidgee and currently serves as a Cabinet Minister in the ACT Government.

Prior to his election into the ACT Legislative Assembly, Steel worked as the Policy and Research Manager at peak education advocacy group Early Childhood Australia.

Prior to being elected to office, Steel volunteered as a Director on the Board of YMCA Canberra.

[4] On 16 October 2016 Steel was elected to the Ninth Assembly to represent the new electorate of Murrumbidgee receiving 9.1% of the vote.

[7] On 1 July 2019 he took on responsibility for the Transport portfolio following Meegan Fitzharris' resignation from the Ministry.