Leadership

Leadership with purpose. Building with people.

Our leadership team brings together technical excellence, strategic vision, and a lasting commitment to our people-first culture. Our leaders don’t just manage projects in their day-to-day, we mentor teams, build lasting relationships, and drive innovation across every project, discipline and region.

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Our People

Leadership Team

Amanda Tippins-Kirk

Amanda brings a strategic and purposeful approach to how TTW shows up in the market. As Head of Marketing, she is equally invested in the people behind the work, fostering a collaborative, growth-driven team culture built on strong processes and genuine care.

Amanda Tippins-Kirk

Head of Marketing

Andre Pereira

Andre bridges the worlds of industry and academia, bringing over 16 years of experience in digital innovation to TTW. He leads TTW Digital, a group dedicated to solving complex engineering problems through artificial intelligence, data analytics and advanced simulation, developing the tools and workflows that make better outcomes possible.

Andre Pereira

Technical Director

Andrew Franklin

Andrew doesn't just solve the engineering problem, he builds the team that solves it. As an Associate Director and Chartered Structural Engineer with more than 15 years' experience, he's led high-performing teams across residential and commercial towers, retail, civic, education, heritage and industrial developments across Australia, always balancing design ambition against cost, constructability and long-term sustainability.

Andrew Franklin

Associate Director

Arga Sandhi

With over two decades of experience across high-rise, commercial, industrial, data centre and residential projects, Arga has earned a strong reputation for delivering structures that are both innovative and built to last. He leads project teams with a focus on structural integrity, design excellence and the collaborative rigour that reflects TTW's standards on a global stage.

Arga Sandhi

Associate Director

Ben Stephenson

International perspective and sector depth define what Ben brings to structural engineering. Having held senior design roles in the UK before joining TTW in 2020, his 15 years of experience spans health, defence, education and residential sectors with a practical understanding of modern delivery approaches including modular construction and prefabrication.

Ben Stephenson

Associate Director

Brandon Kieseker

Brandon's career as a certified Façade and Structural Engineer has taken him across Australia, the UK and Central America, building a rare dual expertise that bridges the technical and the architectural. He brings a holistic approach to design, integrating structure, façade and sustainable building principles into solutions that are both efficient and considered. It's a perspective that's hard to find in one engineer.

Brandon Kieseker

Associate Director

Christie Player

More than 100 civil and multidisciplinary projects across his two decades of experience speaks to the breadth and consistency Christie brings to every project he leads. As Associate Director, he works across all sub-disciplines to ensure consultation is genuine and project requirements are met with the right solutions, delivering outcomes that consistently meet the highest standard.

Christie Player

Associate Director

Colin Gaule

With over a decade of experience across structural steel and concrete design, project coordination and construction delivery, Colin has built a strong reputation for navigating complex constructability challenges and deep excavations, the technical problems that require both rigour and practical on-site understanding.

Colin Gaule

Associate Director

Colin Rope

More than two decades delivering civil engineering projects in the UK and Australia has given Colin a thorough command of his discipline. His expertise spans stormwater infrastructure, Water Sensitive Urban Design, pavements, flooding assessment, roads and earthworks and his ability to apply that knowledge across both private and public sector work is what keeps project teams coming back.

Colin Rope

Associate Director

Craig Seeto

Few engineers can claim the breadth of project experience Craig has accumulated over three decades in engineering consultancy, construction management and senior leadership. His track record delivering major, multidisciplinary infrastructure projects spans defence, highways, water and wastewater, mining and building infrastructure, across Australia and internationally, including the UK, Jamaica, Papua New Guinea and East Timor. That grounded, practical perspective is what clients and project teams rely on when it matters most.

Craig Seeto

Global Civil Director

Daniel Cowie

Daniel shapes structural solutions across residential, commercial, institutional and mass timber projects, working closely with architects, clients and project teams to bring designs that are practical and true to the design vision. With over two decades of years' experience, he pairs technical depth with practical thinking to engineer solutions that create lasting value for clients and the built environment.

Daniel Cowie

Associate Director

Darren Jeffree

Thirty years at TTW and counting. As Technical Director, Darren has been a constant presence since 1993, leading his own design team across all aspects of design, documentation and resourcing. His experience spans residential, healthcare, education, commercial, sport and leisure and retail, bringing a depth of knowledge across both public and private sectors that few can match.

Darren Jeffree

Director

Dean Spencer

Disciplined and practical in his approach to structural design, Dean has led the delivery of technically complex projects across a range of sectors over 15 years, including six Star Green Star aquatic facilities, mass timber buildings, and as a certified Passivhaus designer, one of Australia's largest Passivhaus-certified developments. His focus on long-term building performance runs through everything he does.

Dean Spencer

Director

Dwayne van Halewijn

One of the industry's leading minds in complex façade systems and curtain walls, Dwayne brings a genuinely global perspective to his role as Associate Director. Since joining TTW in 2020, he has drawn on extensive experience gained in Germany and the Netherlands, having led major international projects across the USA, Europe, the Middle East and Australia, from high-rise office buildings to museums, government and public buildings.

Dwayne van Halewijn

Associate Director

Edward Dalton

Edward's career in digital engineering has taken him across Australia, London, New York and Seoul, delivering innovative solutions on some of the world's most architecturally complex structural projects. As Associate Director, he applies that global perspective to finding smarter ways to deliver through digital automation and optimisation.

Edward Dalton

Associate Director

Eirian Crabbe

Eirian leads within TTW's Civil team as Associate Director, managing projects from fee proposal through to construction and completion, while mentoring the next generation of engineers along the way. He is drawn to projects that respond to population growth, climate change and the need for sustainable, resilient built environments.

Eirian Crabbe

Associate Director

Emily McSkimming

Heritage buildings demand a particular kind of expertise - one that Emily has spent over 15 years developing. As Associate Director, she specialises in onsite inspection, diagnosis and technical advice for conservation works, bringing a practical, grounded approach to the management of heritage buildings that clients and project teams depend on to find the right solution.

Emily McSkimming

Associate Director

Geoff Bills

Almost two decades of structural engineering experience across retail, commercial, industrial, government and healthcare has earned Geoff a strong reputation for solving highly complex engineering problems with clarity and precision. He works seamlessly across disciplines with design partners, earning the trust of teams on some of TTW's most technically challenging work through a consistently considered, collaborative approach.

Geoff Bills

Director

Glen Hetherington

Glen has spent almost three decades finding engineering solutions that are both technically rigorous and genuinely buildable. As Technical Director, he brings a practical, deeply considered approach to structural and construction engineering, bridging the gap between design and delivery in a way that clients and construction teams value.

Glen Hetherington

Technical Director

Handy Karlie

Skilled in design engineering, problem-solving, and a wide range of engineering software, Handy is an experienced engineer with a background in permanent and temporary works across structural, infrastructure, and crane engineering. Working closely with clients and project teams, he consistently develops high-quality, effective solutions, drawing on his technical expertise and more than two decades of industry experience.

Handy Karlie

Associate Director

Hannah Jones

The path to Net Zero is one of the most pressing challenges facing the industry and it's where Hannah has focused her expertise for over a decade. She leads TTW's Sustainability team with a personal, considered approach, driving decarbonisation strategies across the business and for its clients.

Hannah Jones

Sustainability Design Lead

Hung Duong

Landmark structures across Australia bear the mark of Hung's work. With over two decades of experience in building and infrastructure projects both locally and internationally, he has developed particular strength in high-rise and long-span structures, lateral systems and refurbishment projects, expertise that runs deep and delivers every time.

Hung Duong

Associate Director

Hung Nguyen

Thirty years of structural engineering experience has made Hung a sought-after mind in the field. As Technical Director, he has a rare ability to take complex architectural designs and find the engineering path that makes them buildable, leading projects across high-rise residential, hotel, commercial, education, government, retail and transportation sectors.

Hung Nguyen

Technical Director

Kathryn Walter

At the intersection of architecture, façade engineering and project delivery, Kathryn has spent over a decade building expertise that is both technically rigorous and architecturally sensitive. She leads TTW's Victorian façade team across landmark Melbourne projects, commercial towers, large-scale residential developments, hospitals and stadiums, offering practical, detail-oriented advice on buildability and construction performance without losing sight of the architectural vision.

Kathryn Walter

Associate Director

Lachlan Drake

Throughout his career in consulting, Lachlan has worked directly with clients and builders across a wide range of sectors, developing a practical, hands-on understanding of what it takes to deliver. He combines strong technical skills with real construction experience to find engineering solutions that are both considered and buildable.

Lachlan Drake

Associate Director

Leah Ferrari

Leah has delivered projects across an impressive range of sectors over 20 years, from rail infrastructure and train stations to hospitals, universities, stadiums and residential developments. As a chartered structural engineer with experience across Australia and Southeast Asia, she brings depth and consistency to every project, with a particular knowledge of Melbourne's built environment.

Leah Ferrari

Associate Director

Lincoln Ladds

Lincoln leads TTW's Construction Engineering team in Melbourne with a deep specialisation in temporary structures, having delivered construction engineering solutions for some of the city's largest buildings and infrastructure projects. As a Chartered Associate Director, he also brings experience in permanent works design across residential and mixed-use high-rise structures, giving him a well-rounded understanding of how buildings come together from the ground up.

Lincoln Ladds

Associate Director

Made Dendy

Made's career spans over 30 years and a remarkable range of sectors, data centres, education, accommodation, commercial, retail, industrial, healthcare and hotels. Based in TTW's Jakarta office, he brings a depth of knowledge and steady expertise that clients across the region have long depended on.

Made Dendy

Associate Director

Manning Thomson

Manning has spent 15 years delivering structural engineering projects across commercial, industrial, retail, education and oil & gas processing sectors in Australia. Technically grounded and dependable, his well-rounded perspective has made him a consistent and trusted presence across a range of demanding project types.

Manning Thomson

Associate Director

Marco Fadda

Marco has spent over a decade refining his approach to structural engineering, one that balances traditional principles with a genuine drive for modern, efficient delivery. He leads teams through complex technical challenges with clarity, consistently holding the work to a high standard without losing sight of what the project needs.

Marco Fadda

Associate Director

Mark Eisenhuth

Behind the consistency and quality of TTW's documentation sits Mark's leadership of the global drafting team. As Associate Director and Drafting Manager, he sets the standards that underpin delivery across the business, managing complex, high-quality work across healthcare, transport, education, industrial and residential sectors on a genuinely global scale.

Mark Eisenhuth

Associate Director Drafting Manager

Mark Ellerington

Technical rigour and a practical, grounded approach to problem solving define how Mark works. With over two decades of experience delivering complex building and infrastructure projects across Australia, New Zealand, Dubai and the UK, he leads multidisciplinary teams with a collaborative style, bringing particular strength in reinforced, precast and post-tensioned concrete, steel and timber structures, and high-rise residential and large-scale developments.

Mark Ellerington

Director

Martin Folan

Martin is one of TTW's foremost experts in Construction Engineering. Known for his deep technical expertise and genuinely collaborative approach, he leads a team that has become an integral part of TTW's offering, adding tangible value at every stage of the construction process. His personal commitment to his clients and ability to navigate the most complex engineering challenges have established him as a trusted and respected leader in the industry.

Martin Folan

Director

Matt Stapleton

Thirty years of structural engineering across Melbourne, Darwin and London has given Matt a depth of expertise. His design skills were forged on commercial and residential high-rise towers, knowledge he has applied across infrastructure, government and retail projects ever since. As a Director, Matt revels in finding structurally efficient, buildable solutions to challenging problems and is equally invested in developing the next generation of structural engineers as manager of one of TTW's Victorian structural teams.

Matt Stapleton

Director

Michael King

When the engineering challenge demands something beyond the conventional, Michael is in his element. As Technical Director, he brings a rare depth of expertise across infrastructure impact assessments, physical security and blast-hardened design, vibration and structural dynamics, and seismic performance, leading with a rigorous, analytical approach that sets TTW's Advanced Analysis Team apart.

Michael King

Technical Director

Michael Shaw

With a strong background in structural design, Michael brings a practical and considered approach. His experience spans commercial, residential, health, retail, education and government projects, leading design teams with a focus on delivering outcomes that are both technically sound and built to last.

Michael Shaw

Associate Director

Mike Barrett

Since joining TTW in 2015, Mike has brought over 30 years of international engineering experience, earned across Europe, the Middle East and Australia, to some of the most complex and ambitious projects in the education, scientific and healthcare sectors. His technical leadership on large-scale, complex structures reflects both the depth of his experience and the standard he holds himself to on every project.

Mike Barrett

Director

Natalie Brooke

Natalie has spent over 15 years committed to the people side of business and it shows in the way she works. As Head of HR, she partners closely with the broader team to shape a workplace where engineers and professionals can do their best work, focused equally on performance, culture and the everyday experience of being part of TTW.

Natalie Brooke

Head of HR

Nicholas Freeland

Nicholas brings international experience across London and Singapore to his role as Associate Director. He is known for finding creative structural engineering solutions across education, commercial and residential projects, with a particular strength in the engineering demands of adaptive reuse and refurbishment of existing structures.

Nicholas Freeland

Associate Director

Nishmin Hallam

Twenty years of structural engineering experience across Australia and the UK, including time at TTW's partner office, Buro Happold in Bath, has given Nishmin both the technical depth and international perspective that defines her approach. She leads with a natural, considered style that has earned her a reputation as one of TTW's most trusted and respected directors.

Nishmin Hallam

Director

Paul Lee

Good engineering starts with understanding how things work in practice. It's the philosophy Paul has brought to over 15 years of civil and structural consultancy in Singapore, across geotechnical, residential, industrial and commercial projects, including the Integrated Waste Management Facility at Tuas Nexus.

Paul Lee

Associate

Paul Mullett

Paul has led global teams and delivered complex projects across the UK, Central Asia and the Middle East, and now brings that experience to Singapore as TTW's Regional Director. His expertise spans advanced structural design and analysis, construction engineering, forensic investigations and digital delivery; a rare combination that gives him depth across both technical detail and strategic direction. He pairs that experience with a thoughtful, collaborative approach, giving clients confidence in the most complex projects.

Paul Mullett

Regional Director

Phil Latham

From education to entertainment, prisons to public art, stadia to stations, Phil's project experience is as broad as it is distinguished. With over 25 years in the structural design of complex building structures across the UK, Europe, the Middle East and Australia, he brings a whole-of-project mindset and a strong focus on interdisciplinary design and high-quality documentation to everything he leads.

Phil Latham

Director

Rami Khalil

Rami has built a career on some of the most ambitious engineering projects across Australia and the Middle East. With 20 years of international experience spanning urban and infrastructure development alongside architecturally challenging, high-performance façades, he brings technical expertise across transport, commercial, residential, industrial, education, healthcare, public, museum and gallery projects.

Rami Khalil

Technical Director

Richard Milsted

Richard leads a strong technical project team at TTW with a holistic approach to structural engineering, devising schemes that meet architectural requirements while remaining cost efficient and sustainable. His combination of technical depth and natural leadership has shaped a career that consistently delivers at the highest level.

Richard Milsted

Director

Robert Correa

A decade of experience delivering complex building and infrastructure projects has given Robert a thorough command of his discipline across commercial, residential, retail and infrastructure sectors. He has developed a particular strength in high-rise, mixed-use developments, deep basements and existing building retrofits, technical work that requires both precisions and practical judgment.

Robert Correa

Associate Director

Rowan Lester

Clients value Rowan for his pragmatic thinking and genuinely collaborative approach, qualities he has refined across 18 years of structural engineering across Australia. As Associate Director, he brings strong technical ability and a grounded design sensibility to multi-level residential and commercial buildings, large-scale industrial facilities, retail and education and community developments.

Rowan Lester

Associate Director

Ryan King

Ryan has earned his reputation on some of the most demanding projects in Sydney and London, delivering large-scale, technically complex work with construction values of up to $900 million. Proactive and collaborative by nature, he consistently produces holistic solutions that serve both the project and the people behind it.

Ryan King

Associate Director

Samuel Cooper

With almost two decades of structural engineering experience across Australia and internationally, Sam has built a reputation for delivering innovative, cost-effective solutions on some of the most complex and ambitious projects in the industry. As Director, he brings specialised expertise in high-rise structures and post-tensioned design, combining deep technical proficiency with a strong focus on practical constructability across a diverse range of sectors.

Samuel Cooper

Director

Serena Yap

Serena has spent over 35 years shaping Singapore's skyline. From Keppel Bay's Caribbean, Reflections, Marina, Corals and The Reef, to the award-winning Interlace, to infrastructure work like Mandai Depot, her portfolio speaks for itself. As TTW's Consultant, she brings that same depth of experience to every project she takes on.

Serena Yap

Consultant

Steffen Schuetze

Steffen leads a designated team in our Sydney office with more than 20 years of structural engineering experience behind him. Strategic and pragmatic by nature, he brings a firm understanding of integrated structural design across a broad range of sectors, including public buildings, defence, transportation, commercial, residential, education and overseas government projects.

Steffen Schuetze

Associate Director

Tania McKenny

Tania has worked across all phases of design and construction over a decade of structural engineering in Australia and the USA, spanning commercial, education, defence, aged care, hospitality, sports and infrastructure sectors. Her strong grounding in both new buildings and the complexities of existing structures makes her a well-rounded and dependable presence on every project she leads.

Tania McKenny

Associate Director

Tim Moore

Known for his pragmatic approach, Tim finds simple, effective solutions to complex civil challenges. As a Chartered Engineer, he gets involved from the earliest stages of a project, working closely with clients and project teams to identify civil engineering opportunities, resolve constraints and establish clear pathways forward. He isn't afraid to question assumptions or rethink the brief when it leads to a better outcome, balancing technical performance, project constraints and client aspirations to create lasting value.

Tim Moore

NSW Civil Manager

Trent Byrne

With extensive experience across Australia and the UK, Trent has worked across some of the most structurally diverse projects in the industry, from tall buildings and commercial developments to large-scale stadia. As Associate Director, his holistic and collaborative approach ensures the structural solution always serves the wider project, delivering outcomes that work for everyone involved.

Trent Byrne

Associate Director

Tristan Harris

Tristan brings a rare combination of civil and structural engineering expertise and management consulting experience to TTW. With over a decade across both disciplines, he has led the design and inspection of diverse infrastructure and building projects, applying technical rigour and strategic thinking to deliver outcomes that are safe, compliant and built to last.

Tristan Harris

Associate Director

Wystan Alexander

As Director and TTW's Data Centre lead, Wystan has built a reputation in one of the most technically demanding and fast-growing sectors in the built environment. Pragmatic and rigorous in equal measure, he is sought after for his ability to translate complex client briefs into considered, efficient engineering solutions, across data centres, commercial, industrial, healthcare, residential, retail, government, education and sports facilities.

Wystan Alexander

Director

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