Our People

Leaders and Principals

Gerry Doyle

Gerry Doyle

Chief Executive Officer

Tim Ennis

Tim Ennis

Clients and Growth Lead

Baseel Mohamed

Baseel Mohamed

Chief Financial Officer

Krystal Kovac

Krystal Kovac

General Counsel

Hayley Lokan

Hayley Lokan

Workforce Capability Lead

Bryan McDonald

Bryan McDonald

Operations Manager - NSW

Tom Oliver

Tom Oliver

QLD Operations Manager, Principal Structural Engineer

Carmen Wentrock

Carmen Wentrock

Operations Manager SA & VIC

Melinda Lutton

Melinda Lutton

Assistant Operations Manager / Principal Civil Engineer

Adrian Calabria

Adrian Calabria

Structural Drafting Lead - NSW

Andrew Morrison

Andrew Morrison

Principal - Design and Drafting

Andrew Seaton-Stewart

Andrew Seaton-Stewart

Leader Riverland Region, Principal Structural Engineer

Christina Bruno

Christina Bruno

Clients and Growth Lead - Local Government SA/VIC

Dan Walsh

Dan Walsh

Transport Lead

David Janson

David Janson

Water Lead - SA/Vic

Elsie Mann

Elsie Mann

Clients and Growth Lead - Water | Hydraulic Modelling Team Lead

Ian Harvey

Ian Harvey

Design Drafter Lead - Water SA/Vic

James Farrall

James Farrall

Principal - Transport Structures

Jeff Tyler

Jeff Tyler

Principal - Water and Development

Jordan Neis-Beer

Jordan Neis-Beer

Geotechnical Lead

James Arnold

James Arnold

Traffic Lead

Luke Boin

Luke Boin

Assets and Spatial Lead - SA

Mal Wilkinson

Mal Wilkinson

Mining Lead

Matthew Scott-Toms

Matthew Scott-Toms

Mechanical Lead - Water Team SA/Vic

Patrick Tunnah

Patrick Tunnah

East Coast Water Lead

Paul Davies

Paul Davies

Civil Design Lead - SA/VIC

Phil Engler

Phil Engler

Civil Lead - Water Team SA/Vic

Ricky Worn

Ricky Worn

Structures Lead - QLD

Rod Ellis

Rod Ellis

Principal - Infrastructure Management

Russell Howell

Russell Howell

Maritime Lead

Rohan Naidu

Rohan Naidu

Water Lead - NSW

Saad Haque

Saad Haque

National Lead - Environment & Sustainability

Savas Christoforidis

Savas Christoforidis

Principal Structural Engineer

Stuart Croser

Stuart Croser

Automotive Lead

Tim Kerby

Tim Kerby

Stormwater Lead - SA

Tim Thiel

Tim Thiel

Local Government and Development Lead - SA/VIC

Trent Phillips

Trent Phillips

Leader South East Region, Principal Structural Engineer

Tyson Radetti

Tyson Radetti

Principal – Roads and Traffic

Sina Arbabzadeh

Sina Arbabzadeh

Principal Civil - NSW

Ian Harvey

Design Drafter Lead - Water SA/Vic

Ian leads the drafters and designers within Tonkin's Water Team in SA/Vic.His key areas of experience include projects relating to land development, sewer and water reticulation, transport, mining, and structures. His experience working on a variety of projects for councils, government agencies and private developers gives him a unique perspective and he brings this knowledge with him on every new job. Ian employs a collaborative approach to civil design and this, coupled with pragmatic problem-solving skills and an understanding of multiple local standards, strengthens his ability to lead the design team.