With over 30 years of experience across public and private sectors, David brings deep expertise in pavements and sealing. He’s a long-time contributor to AfPA and a respected industry connector, known for his collaborative approach and strategic insight. David plays a key role in helping Downer and its customers deliver high-performing, cost-effective road services that meet the needs to communities and stakeholder.
Talk to David about: Pavement and sealing strategies, collaborative contracting and how we’re delivering smarter road services across Australia.
Amanda sits at the heart of Downer’s surfacing operations in South Australia, coordinating works across Production, Engineering, and Operations. Her role ensures seamless delivery across multiple projects and customers. Amanda is also a passionate advocate for women in civil construction, serving on the EmpowHER Governing Committee and as Vice Chair of the CCF Women in Civil Committee, where she champions diversity and inclusion in the industry.
Talk to me about: Coordinating surfacing works, building strong delivery teams, and empowering women in civil construction.
Adrian brings hands-on leadership and deep project delivery experience to Downer’s construction team. He recently led the Kangaroo Island Shoulder Sealing & Pavement Rehabilitation project - a complex, multi-stage job involving remote logistics, evolving scope, and strong client collaboration. Adrian is known for his ability to manage challenging environments while maintaining quality, safety, and stakeholder engagement.
Talk to me about: Delivering complex infrastructure in remote locations, and how we achieved a great outcome on Kangaroo Island through collaboration and adaptability.
Shawn is an experienced operations leader with a strong background in civil engineering. He’s skilled in operations management, highways, procurement, and project estimation, and has a proven track record of delivering high-quality surfacing outcomes. Shawn is passionate about continuous improvement and ensuring our thin surfacing solutions meet the evolving needs of clients and communities.
Talk to me about: Spray sealing, thin surfacing techniques, and how we’re improving road performance and durability across our networks.
Hamed leads research and development at Road Science, specialising in asphalt mix design, modified bitumen, and pavement modelling. With a PhD in Pavement Materials, he’s a key driver of innovation in road construction and preservation. Hamed works closely with industry partners to develop high-performance, sustainable solutions tailored to Australia’s infrastructure needs.
Talk to me about: Road Science’s R&D capabilities, sustainable pavement technologies, and how we’re shaping the future of road construction.
Callum leads a multidisciplinary engineering and commercial team focused on delivering airport pavement projects across Australia. His experience spans major airfield infrastructure projects including Hobart, Brisbane, RAAF Williamtown, Adelaide, Mackay, and Alice Springs. Callum is also responsible for over 1.4 million m² of capital pavement maintenance at Sydney Airport. He’s a strong advocate for innovation and sustainability and serves as a Non-Executive Director of Wellness in Infrastructure, promoting mental health and cultural transformation in the sector.
Talk to me about: Airfield infrastructure delivery, collaborative contracting models, and how we’re integrating sustainability and innovation into specialised pavement projects.
Iulian holds a bachelor’s degree in chemical engineering and a Master of Engineering in Pavements. He has extensive experience in asphalt mix design and bitumen modification with polymers and is actively involved in developing innovative and sustainable bituminous products for airport pavements. Iulian works closely with engineering teams to ensure our designs meet the highest standards of performance and durability.
Talk to me about: Asphalt mix design, polymer-modified bitumen, and the future of sustainable technologies in airport pavement engineering.
Steve leads strategic development and pre-contracts across a range of infrastructure projects, with a strong focus on aligning commercial outcomes, stakeholder engagement, and sustainable delivery. His experience spans pavement construction, civil infrastructure, and rail signalling, with a proven track record in alliance environments and business unit leadership. Steve is a passionate advocate for sustainability - both at work and at home - championing electrification, EV adoption, and low-emission solutions across the sector. He is committed to building high-performing teams and embedding safety, innovation, and long-term thinking into every phase of project development.
Talk to me about: Sustainability at work and home, EVs and electrification, alliance delivery models, and strategic development in infrastructure.