Executive Committee
Executive Committee
Committee Membership
The SIA Executive Committee comprises:
About this person
Michael is a senior manager and engineer who is currently employed as the Executive Director of National Security Solutions Asia Pacific in the Aerospace, Technology and Nuclear line of business of Jacobs.
Michael's career started in the Royal Australian Navy and he undertook a range of positing at sea and ashore. He served in surface ships as a Marine Engineer with his final posting being the Engineering Officer of HMAS MANOORA. He served in Oberon class submarines as a Seaman Officer.
Since leaving the Navy, Michael has worked in the Fire Services industry as the Northern Territory Manager of Chubb Fire, the telecommunications industry as a Management Consultant with Optus and is currently responsible for delivering professional services to clients in the National Security Space, predominantly the Department of Defence. Michael has served on the SIA committee since 2011.
Michael is a senior manager and engineer who is currently employed as the Executive Director of National Security Solutions Asia Pacific in the Aerospace, Technology and Nuclear line of business of Jacobs.
Michael's career started in the Royal Australian Navy and he undertook a range of positing at sea and ashore. He served in surface ships as a Marine Engineer with his final posting being the Engineering Officer of HMAS MANOORA. He served in Oberon class submarines as a Seaman Officer.
Since leaving the Navy, Michael has worked in the Fire Services industry as the Northern Territory Manager of Chubb Fire, the telecommunications industry as a Management Consultant with Optus and is currently responsible for delivering professional services to clients in the National Security Space, predominantly the Department of Defence. Michael has served on the SIA committee since 2011.
About this person
Joining the Royal Australian Navy as a seventeen-year-old Midshipman in 1983, Peter Scott served in twenty different command and Senior leadership appointments and rose over three decades to be the professional head of the Navy’s elite: the Submarine Arm.
Now retired from full time service, Peter holds a Masters in Coaching Psychology from the University of Sydney and works as an executive coach to help leaders develop, perform and succeed.
His memoir Running Deep. An Australian Submarine Life, was published by Fremantle Press in 2023.
Peter is married with an adult daughter and runs trail ultra-marathons for fun and relaxation. Peter has served on the SIA Committee since 2022.
Joining the Royal Australian Navy as a seventeen-year-old Midshipman in 1983, Peter Scott served in twenty different command and Senior leadership appointments and rose over three decades to be the professional head of the Navy’s elite: the Submarine Arm.
Now retired from full time service, Peter holds a Masters in Coaching Psychology from the University of Sydney and works as an executive coach to help leaders develop, perform and succeed.
His memoir Running Deep. An Australian Submarine Life, was published by Fremantle Press in 2023.
Peter is married with an adult daughter and runs trail ultra-marathons for fun and relaxation. Peter has served on the SIA Committee since 2022.
About this person
Rebecca is a senior executive with Saab Australia and is Chair of the Conference Committee for SubSTEC7. She was elected as Treasurer at the 23rd AGM in 2021.
Rebecca is a senior executive with Saab Australia and is Chair of the Conference Committee for SubSTEC7. She was elected as Treasurer at the 23rd AGM in 2021.
About this person
Ashleigh Langdon is a purpose driven leader, strategist, and business builder who is deeply passionate about growth in people, organisations, and impact. With more than 15 years’ experience across Australia’s Defence, National Security, and Government sectors.
Coming from a vocational background, Ashleigh’s career journey has been shaped by hands on experience across every level of business including below the line, above the line, and on the line. She has worked within the Australian Public Service, as well as across small, medium, and large industry organisations, giving her a rare, holistic perspective of how strategy, delivery, and people intersect.
As the Co-Founder and Managing Director of Nvisia, Ashleigh partners with clients to bridge the gap between strategic intent and operational delivery. She combines commercial acumen with an ability to connect people, ideas, and opportunities bringing clarity to complexity and momentum to ambition.
At her core, Ashleigh believes growth happens through people. She thrives on building strong, trusted relationships and empowering others. Her leadership style is grounded in authenticity, curiosity, and belief in others because when people grow, businesses flourish.
Ashleigh has built her career around helping others unlock their potential and achieve meaningful, sustainable outcomes, her passion for business and leadership is contagious. Whether she’s advising senior executives, mentoring emerging talent, or building bold new ventures, her focus remains the same: to add value, make a difference, and help others achieve their best with clarity, confidence, and purpose.
Ashleigh Langdon is a purpose driven leader, strategist, and business builder who is deeply passionate about growth in people, organisations, and impact. With more than 15 years’ experience across Australia’s Defence, National Security, and Government sectors.
Coming from a vocational background, Ashleigh’s career journey has been shaped by hands on experience across every level of business including below the line, above the line, and on the line. She has worked within the Australian Public Service, as well as across small, medium, and large industry organisations, giving her a rare, holistic perspective of how strategy, delivery, and people intersect.
As the Co-Founder and Managing Director of Nvisia, Ashleigh partners with clients to bridge the gap between strategic intent and operational delivery. She combines commercial acumen with an ability to connect people, ideas, and opportunities bringing clarity to complexity and momentum to ambition.
At her core, Ashleigh believes growth happens through people. She thrives on building strong, trusted relationships and empowering others. Her leadership style is grounded in authenticity, curiosity, and belief in others because when people grow, businesses flourish.
Ashleigh has built her career around helping others unlock their potential and achieve meaningful, sustainable outcomes, her passion for business and leadership is contagious. Whether she’s advising senior executives, mentoring emerging talent, or building bold new ventures, her focus remains the same: to add value, make a difference, and help others achieve their best with clarity, confidence, and purpose.
About this person
Joe Legare is the Chief Strategy Officer for H&B Defence. He is a proven leader with 40 years of nuclear program experience and is recognized in the U.S. Congressional Record for strong leadership executing high consequence programs. An experienced communicator and public speaker, he conveyed complex technical and policy issues to diverse groups of stakeholders throughout the U.S. Department of Energy complex to gain support for pro-gram initiatives in nuclear environmental cleanup and stewardship. He served in the U.S. Navy as a submarine nuclear propulsions officer and a program manager at the Pentagon. He executed nuclear safety programs at the U.S. Department of Energy and executed nucle-ar environmental cleanup projects across the United States in both government and industry roles.
Legare was responsible for stakeholder engagement for the highly successful 10-year $6B nuclear cleanup project at Rocky Flats, Colorado. He led hundreds of public meetings with regulators, local and state government and citizens groups to achieve complex mission objectives. As the Executive Officer for the $2B multi-decade Los Alamos Legacy Cleanup Program in New Mexico, he partnered with communities to align their interests with program objectives. Joe served for six years as the General Manager for the Legacy Management program, responsible for performance at 90 former Manhattan Project sites across 28 states, and worked with federal, state and local governments to transition assets from government stewardship to beneficial reuse.
Joe has deep experience building social license and engaging with stakeholder groups for high-hazard, high-consequence and controversial programs, and a deep belief in the value of gaining and maintaining social license to achieve and exceed program objectives.
Joe Legare is the Chief Strategy Officer for H&B Defence. He is a proven leader with 40 years of nuclear program experience and is recognized in the U.S. Congressional Record for strong leadership executing high consequence programs. An experienced communicator and public speaker, he conveyed complex technical and policy issues to diverse groups of stakeholders throughout the U.S. Department of Energy complex to gain support for pro-gram initiatives in nuclear environmental cleanup and stewardship. He served in the U.S. Navy as a submarine nuclear propulsions officer and a program manager at the Pentagon. He executed nuclear safety programs at the U.S. Department of Energy and executed nucle-ar environmental cleanup projects across the United States in both government and industry roles.
Legare was responsible for stakeholder engagement for the highly successful 10-year $6B nuclear cleanup project at Rocky Flats, Colorado. He led hundreds of public meetings with regulators, local and state government and citizens groups to achieve complex mission objectives. As the Executive Officer for the $2B multi-decade Los Alamos Legacy Cleanup Program in New Mexico, he partnered with communities to align their interests with program objectives. Joe served for six years as the General Manager for the Legacy Management program, responsible for performance at 90 former Manhattan Project sites across 28 states, and worked with federal, state and local governments to transition assets from government stewardship to beneficial reuse.
Joe has deep experience building social license and engaging with stakeholder groups for high-hazard, high-consequence and controversial programs, and a deep belief in the value of gaining and maintaining social license to achieve and exceed program objectives.
About this person
John is a former submarine officer who is one of Australia's leading environmental consultants.
John is a former submarine officer who is one of Australia's leading environmental consultants.
About this person
Bradley Robb is an accomplished risk and safety engineer, executive manager, and is the Managing Director of ALARP Solutions. He started his career in the Navy as a Marine Engineering Officer before transferring to the Fleet Air Arm where he also qualified as an Aeronautical Engineering Officer in the Fleet Air Arm. Brad subsequently transferred to the Air Force and continued his engineering career working across a broad range of projects and programs. During this phase of his career, he developed skills and gained valuable experience in Systems Engineering disciplines such as Software Development, Verification and Verification, Reliability Availability and Maintainability, and Systems Safety, while also taking on roles in Project Management, Joint Operations and Training Development and Delivery.
On leaving the ADF, Brad chose to become a risk and safety engineering specialist and soon found his way back working in the Defence sector on major acquisition projects such as LHD and AWD but was also worked in other sectors including Commercial Marine, Commercial Aviation, Oil & Gas, and Rail. Over the last 6 years, Brad’s involvement with the Collins Submarine Program has included supporting CASG as the System Safety, V&V and Certification Manager on the Collins Sonar Upgrade Program, and currently he supports Defence Industry working below the line delivering system safety training and undertaking detailed functional safety analysis to support the Collins LOT program.
Bradley Robb is an accomplished risk and safety engineer, executive manager, and is the Managing Director of ALARP Solutions. He started his career in the Navy as a Marine Engineering Officer before transferring to the Fleet Air Arm where he also qualified as an Aeronautical Engineering Officer in the Fleet Air Arm. Brad subsequently transferred to the Air Force and continued his engineering career working across a broad range of projects and programs. During this phase of his career, he developed skills and gained valuable experience in Systems Engineering disciplines such as Software Development, Verification and Verification, Reliability Availability and Maintainability, and Systems Safety, while also taking on roles in Project Management, Joint Operations and Training Development and Delivery.
On leaving the ADF, Brad chose to become a risk and safety engineering specialist and soon found his way back working in the Defence sector on major acquisition projects such as LHD and AWD but was also worked in other sectors including Commercial Marine, Commercial Aviation, Oil & Gas, and Rail. Over the last 6 years, Brad’s involvement with the Collins Submarine Program has included supporting CASG as the System Safety, V&V and Certification Manager on the Collins Sonar Upgrade Program, and currently he supports Defence Industry working below the line delivering system safety training and undertaking detailed functional safety analysis to support the Collins LOT program.
About this person
Alan Rose is the SIA Committee member representing the ANSM Sub-committee. He brings SSN experience to the committee and an interest in ensuring that our Australian Submarine Heritage is preserved for this and future generations to the benefit from.
Alan Rose is the SIA Committee member representing the ANSM Sub-committee. He brings SSN experience to the committee and an interest in ensuring that our Australian Submarine Heritage is preserved for this and future generations to the benefit from.
Code of Ethics
Each member of the SIA Executive Committee has agreed to abide by a Code of Ethics which can be downloaded here.