Cr Marsden works in the field of active transport infrastructure as an analyst of cycling and walking networks. He has previously served in the Australian Army as a helicopter pilot. Cr Marsden brings the values of ecological sustainability, social justice, and peace and non-violence to his decisions on Council. He actively promotes consensus decision making on Council. Cr Marsden has a strong commitment to grassroots democracy and is answerable to the citizens of Hobsons Bay — and no-one else.
Cr Marsden co-chairs the transport and environment advisory committees. He is chair of the Western Transport Alliance, vice-chair of the Metropolitan Transport Forum, and vice-president of the Association of Bayside Municipalities. Cr Marsden served his first term as mayor in 2018-19.