Duncan Boss‑Walker is a Principal Environmental Scientist and General Manager of the Land and Water Group at Onterris, with more than 25 years of experience delivering contaminated land and strategic water services across Australia.
Duncan leads multidisciplinary teams specializing in complex contaminated land projects, working closely with clients and stakeholders to deliver clear, coordinated outcomes. He brings strong project leadership and a collaborative approach, guiding large programs from early planning through to delivery.
As a key client relationship manager, Duncan develops trusted, long‑term partnerships across both public and private sectors, supporting projects with sound judgment, practical solutions and strategic oversight.