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

Mark Baker

Mark Baker

NSW Operations Manager, Principal Structural Engineer

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

Benson Ou

Benson Ou

Civil Team Leader - NSW

Catherine Brock

Catherine Brock

Water Lead - SA/VIC

Christina Bruno

Christina Bruno

Clients and Growth Lead - Local Government

Dan Walsh

Dan Walsh

Transport Lead

Elsie Mann

Elsie Mann

Clients and Growth Lead - Water

James Farrall

James Farrall

Principal - Transport Structures

Jeff Tyler

Jeff Tyler

Principal - Water and Development

Jordan Neis-Beer

Jordan Neis-Beer

Geotechnical Lead

Katie McAllister

Katie McAllister

Development Lead - QLD

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

Principal - Water and Mechanical

Patrick Tunnah

Patrick Tunnah

Water Lead - QLD

Paul Davies

Paul Davies

Civil Design Lead - 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

Elsie Mann

Clients and Growth Lead - Water

In her role as Clients and Growth Lead - Water, Elsie helps connect clients with Tonkin's wide range of expertise in water engineering. 

Elsie is a Senior Engineer with more than 15 years' experience in the water industry. Elsie is passionate about applying her skills and experience to identify innovative and effective solutions for complex water management challenges. She brings a strong track record of performance in network analysis, asset planning and operational analytics, as well as experience in integrated water management.

Elsie has worked with leading water and wastewater utilities around the globe, including in Australia, New Zealand, the United States and United Kingdom.