Stewart is General Manager of Tetra Tech Proteus, and is responsible for the management, coordination, and commercial performance of the engineering business.

Tetra Tech Proteus provides a broad range of services in chemical, process, civil, architectural, structural, mechanical, piping, electrical and instrumentation engineering in mining, mineral processing, and infrastructure.

Stewart, a registered engineer, joined Tetra Tech in 2011 and has over 20 years of experience across all aspects of project delivery and a range of industries including mining and minerals processing, petrochemicals, and utilities. Stewart has Bachelor of Engineering (Electrical) (Honours) from the University of Newcastle.