Team.

Team

A diverse team, deep experience, real impact.  

At Sequana, we bring together a dynamic and respected team with diverse backgrounds and deep sector knowledge. Our people are not only seasoned professionals in infrastructure, water, environment, and energy—they’ve lived and worked within the very organisations we now support. This insider perspective allows us to deliver advice, leadership and management that’s grounded, effective, and sharply attuned to client realities. 

We expertly steer projects through complexity—from strategy and planning to design, approvals, procurement and delivery—with precision, creativity, and a strong focus on sustainability. Our track record is broad and proven, enabling us to lead with confidence across every stage of the infrastructure lifecycle. 

Rooted in shared values and collaboration, we build genuine partnerships—with our clients, with Traditional Owners, and with communities—to deliver meaningful, lasting outcomes. Every solution we craft is informed by deep listening, mutual respect, and a drive to advance Australia’s future: inclusive, resilient, and net zero-ready. 

Meet some of our Key People

Mike Walsh

Mike Walsh

Chair
Frank Fisseler

Frank Fisseler

Chief Executive Officer
Greg Yu

Greg Yu

Chief Financial Officer
Trudi Woodward

Trudi Woodward

Chief Operating Officer
Natalie Sharp

Natalie Sharp

Director - Systems & PMO
Daniel Irwin

Daniel Irwin

Managing Director - South & East Australia and Deputy Chief Executive Officer
David Thomas

David Thomas

Managing Director - North & West Australia
Mandi Davidson

Mandi Davidson

Executive Director - Strategy, Communications & Engagement
Deb Neumann

Deb Neumann

Director - Strategic Environment & Planning
Zoe Walsh

Zoe Walsh

Director - Marketing, Communications & Engagement
Hannah Walmsley

Hannah Walmsley

Director - Growth Partnerships
Darren Nabbs

Darren Nabbs

Director - Program Delivery
Ali Alamein

Ali Alamein

Associate Director - Commercial
Ian Filby

Ian Filby

National Partner - Energy, Decarbonisation & Major Project Delivery
Daniel Freitag

Daniel Freitag

Project Director & Senior Associate
Rhys Anderson

Rhys Anderson

Associate Director - Water Strategy & Growth
Eric Garcin

Eric Garcin

Associate Director - Major Projects 
Danya Maguire

Danya Maguire

Head of People & Culture
Gary Crisp

Gary Crisp

Chief Engineer
Kylie Dulson

Kylie Dulson

Commercial Manager - North & West
Scott Sheriff

Scott Sheriff

Project Director
Jody Meir 

Jody Meir 

Project Engagement Lead 
Misaki Nakamura

Misaki Nakamura

Western Australia Regional Manager
Paul Gooley

Paul Gooley

Engineering Manager
Anne Cormack

Anne Cormack

Associate Director - Environment & Planning
Jackie Thompson

Jackie Thompson

Commercial Services Lead
Melanie Tranter

Melanie Tranter

Associate Director - Strategic Environment
Frances Nelligan

Frances Nelligan

Queensland Market Leader
Madeleine Page

Madeleine Page

Regional Environment and Planning Lead – North & West
Jean-Michel Seillier

Jean-Michel Seillier

Strategic Advisor
Rainer Hagedorn

Rainer Hagedorn

Associate Director - Water & Energy Major Projects
Shweta Gupta

Shweta Gupta

Head of Pursuits