Our Team

Under the leadership of our executive, we have carefully grown our team of high-quality people, and with each project we strive to keep on improving.

Our multidisciplinary team are specialists with diverse experience in Rail, Road, Power, Defence, Health and Information & Communication Technology (ICT) projects. Our Directors are all recognised leaders in the NSW industry and as a policy all our Directors continue to be actively involved in project delivery.

John Armstrong, Managing Director

John Armstrong

Managing Director
(+61) 452 544 149

John has over 25 years’ experience in developing and delivering road and rail infrastructure projects across Australia and Internationally. John’s experience as a client, contractor and consultant gives him an excellent insight into what each organisation needs and how best ARCH Artifex can help them.

Portrait of Steve Naumovski, Advisory Board Member

Steve Naumovski

Advisory Board Member
(+61) 400 300 246

Steve has 25 years’ experience in developing and delivering rail, road and power infrastructure projects. Steve brings a broad technical capability to complex multi-disciplinary projects with particular expertise in constructability and interface management.

Portrait of Tom Castor

Tom Castor

Regional Director – Vic
(+61) 488 083 606

Tom has over 30 years in engineering management in both Australia and the United Kingdom including the electrification of Adelaide’s passenger rail network and traction power system upgrades in Queensland’s coal rail systems. Tom joins ARCH Artifex from Metro Trains Melbourne, where he was the Engineering Manager for the Metro Tunnels Project and the Level Crossing Removal Program. 

Conrad Winter

Director – Markets
(+61) 409 790 011

Conrad has over 25 years' experience as a business development specialist and strategist across numerous market sectors delivering products and services to Government, infrastructure, energy, property and water clients. Conrad has been instrumental in his career to lead and drive teams to successfully deliver customer focused strategies that win, nurture and maintain clients year after year resulting in positive outcomes and delighted clients.

Sandra Bradfield

Corporate Services
(+61) 408 978 835

Sandra has over 25 years’ experience in corporate accounting, auditing and the public accounting profession.  As Director Corporate Services for ARCH Artifex, she brings her understanding of Corporate Governance, consultancy expertise and broad business knowledge garnered through her position on the board of management in the Not-for-Profit sector and as Principal of her own CPA Practice.

Portrait of Jonathon Luey

Jonathan Luey

Divisional Manager, Systems Engineering & Safety Assurance
(+61) 409 688 709

Jonathan is an Engineering Manager with over 20 years' experience. He leads our SESA team nationally and brings to the table his extensive experience in implementing best practice Engineering Assurance within client organisations to help ARCH Artifex support contractors, developrs and consultants during project delivery.

Portrait of Andy Petrie

Andy Petrie

Divisional Manager, Systems Engineering & Safety Assurance
(+61) 410 969 945

Andy has 25 years of experience and is ARCH Artifex's national lead for Safety Assurance. Andy's knowledge and experience with Government Agencies and Head of Safety roles with rail infrastructure managers ensure that ARCH provides the best in class rail Safety Assurance services nationally.

Tharan Karunalayan

Systems Engineering & Safety Assurance
(+61) 412 616 499

Tharan is a Charted Engineer with 20 years' professional, multidisciplinary engineering experience. He has expert Systems Engineer & Safety Assurance (SESA) knowledge and skills gained from working on both the contractor and client side within the Rail, Defence, Airports, and ICT sectors.

Portrait of Sameera Bandara

Sameera Bandara

Associate Director
Systems Engineering & Safety Assurance
(+61) 412 409 882

Sameera is an experienced Systems and Safety Engineer with over 22 years of experience working across Rail and Defence Aviation sectors. In the last 5 years, he has worked exclusively on Major Rail Projects including the Metro Tunnel Project (MTP) and the Melbourne Airport Rail (MAR) Project, supporting the delivery and integration of novel technology across the Melbourne Rail Network.  

Ashlea Malloy

Associate Director
Systems Engineering & Safety Assurance
(+61) 499 090 365

Ashlea has 15 years’ experience in project and engineering management in the rail and energy sectors. An esteemed former SESA Lead on iconic infrastructure projects, Ashlea has built engineering capabilities with continuing legacies. A natural communicator and collaborator, Ashlea has a creative vision for delivering sound, assured outcomes, at the leading edge of innovation. 

Portrait of Raza Rizwan

Raza Rizwan

Team Manager — VIC
System Engineering & Safety Assurance
(+61) 433 414 613

Raza has over 10 years of experience in Victoria and was an IRSE Finalist – Systems Engineer of the Year in 2018. Raza’s Victorian experience includes Melbourne Metro, High Capacity Metro Trains, Melbourne Airport Rail and Yarra Trams and he is currently assisting with our Independent Safety Assessor (ISA) role for MTM. 

Ray Misa

Associate Director
National Human Factors Lead
(+61) 425 671 718

As a Human Factors (HF) expert, Ray has supported transport, infrastructure, and safety projects across Australia and New Zealand for over 17 years. With diverse experience in consulting, design, and assurance, he has an intricate understanding of HF integration across the entire project lifecycle.

Portrait of Gareth O'Brien

Gareth O'Brien

Divisional Manager
Environment & Sustainability
(+61) 428 194 445

An experienced Environment and Sustainability leader on major infrastructure projects, Gareth has 10+ years' experience across all phases of the project lifecycle. Gareth brings expertise in environment and sustainability management in design and planning approvals, construction delivery, assurance and leading sustainability ratings.

Mark Turner

Associate Director
Environment & Sustainability
(+61) 412 432 488

Mark has over 15 years of experience in operational leadership, pre-contract and delivery roles across environmental management, approvals and sustainability within various sectors in Australia. Having held positions with Tier 1 Contractors and as a regulator in State and Local Government, he understands approval and compliance requirements, which he can translate into a construction setting to ensure ongoing compliance during the Project lifecycle.

Katie Gurrie

Associate Director
Environment & Sustainability
(+61) 418 568 413

Katie has over 20 years experience in developing, operationalising and continuously improving environmental and sustainability management plans to ensure projects manage risk, compliance and stakeholder expectations. Katie has worked as a senior leader across multiple sectors including construction, defence, manufacturing and government and has the ability to successfully identify opportunities which go beyond "business as usual" and drive positive outcomes.

Rosie Dutton

Sustainability Lead
Environment & Sustainability
(+61) 415 597 887

Rosie has a history of delivering sustainability excellence across a range of major infrastructure projects. She is outcomes oriented; an analytical thinker; and passionate about sustainable development and education. She has demonstrated exceptional leadership and skills to engage, motivate and manage multidisciplinary teams to deliver tangible sustainability outcomes from design through to operation.

Byron Davy

Associate Director
(+61) 433 414 613

Byron is an accomplished sustainability leader with 15+ years of expertise across major infrastructure and commercial projects. He excels in developing and implementing sustainable strategies throughout the design and delivery phases and is passionate about helping organisations develop their sustainability capacity

Portrait of David Jones, Director, Divisional Manager, Project Services

David Jones

Divisional Manager
Project Services(+61) 417 314 537

David has 20 years of experience in engineering management and was the NSW Engineering Manager for the Downer Group. David's expertise in engineering and assurance within a contracting organisation gives him excellent insight into what our clients need to deliver successful projects.

Portrait of Rahui Bahl

Rahul Bahl

Team Manager
Engineering & Project Management
(+61) 449 185 340

Rahul has 25+ years of experience in design management, engineering management, construction, project and program management, and operational strategy across heavy rail, metro and light rail. Rahul is reliable and innovative, excelling in project delivery.

Jody Connor

Associate Director
Functional Manager
Communications & Stakeholder Engagement
(+61) 418 600 374

Jody is a communication and engagement specialist with over 30 years of experience across multiple sectors and industries. With qualifications in town planning and urban design, Jody offers a unique skillset that combines public affairs and communication strategy with the technical knowledge of planning and design. Jody has extensive experience in issues management, including communication risk management of contamination on sensitive sites.

Portrait of Josh Boyd

Josh Boyd

Associate Director
(+61) 417 111 321

Josh has 15+ years’ experience in managing major rail infrastructure design, construction, and commissioning projects. Josh leads ARCH’s constructability service and is responsible for the delivery of construction methodology and planning on major infrastructure projects with a particular expertise in brownfield rail environments. 

Portrait of Safal Sarangi

Safal Sarangi

Associate Director
Project Planning & Controls
(+61) 405 953 215

Safal has 15 years’ experience working in rail, infrastructure, oil and gas projects in Australia and overseas, including client-side with Sydney Metro West. He is a proven specialist in rail systems planning and integration. 

What our clients say...

"I've had the pleasure of dealing with ARCH Artifex on a number of occasions. They supported Lendlease Building in obtaining their AEO Certification and have also supported our design JV on the Sydney Metro Victoria Cross project. I've always found the team to be easy to work with and get the job done. Happy client!"

Jeremy Cole — Head of Rail Assurance

Lendlease Australia


"ZHACOX selected ARCH Artifex due to their deep experience and competence in a range of assurance activities. The team blended seamlessly with our design team, carefully integrating the design thinking to achieve brief compliance."

Satvir Mand — Director

COX Architecture


"The team are exceptionally skilled at providing support across the project lifecycle, including Systems Engineering and Safety Assurance. ARCH Artifex people are of the highest standard who consistently demonstrate a high performing attitude and a commitment to best project outcomes."

Rob Wallace — Project Director

Georgiou Group


"ARCH Artifex are the consummate professionals, always meeting timelines and providing effective client engagement. The team are a highly engaged workforce and the business displays an impressive organisational culture."

Tony Lennon — National Rail Technical Lead

Australia Pacific — Arcadis


"We have utilised the ARCH Artifex team on our TfNSW infrastructure projects and have found their skills in Safety Assurance and Requirements Management, Design Management and P6 Programming to be exemplary."

Colin Woods — Managing Director

Haslin Constructions Pty Ltd


"ARCH ARTIFEX have provided us expert services across HV power Infrastructure Projects. The knowledge and experience have been exceptional and made a big difference in the overall management of our projects."

David Underwood — Project Director

Global Switch