"Our reliability is a key factor for our clients managing their own corporate and project risk"



Angus Gorman

Managing Director

B.Eng (Civil), MSc. (Project Management), FIEAust, CPEng, EngExec, NER, Management Systems Lead Auditor

Angus is the Managing Director of Indesco with tertiary qualifications in Civil Engineering and Project Management. He is also an accredited lead auditor. Angus has over 20 years experience managing multi-disciplinary projects and the design, documentation and construction of engineering infrastructure associated with urban development. He also offers experience in procurement, construction management and contract administration.
As Managing Director, Angus also oversees a range of business operations.

Aaron Hazelton


B.E. (Hons), BSc, MIE Aust, CPEng, NPER, RPEQ, RBP, FIEAust, Committee Member, Concrete Institute of Australia

Aaron is a Director of Indesco and Principal Structural Engineer. He has over 10 years of experience in structural design and project leadership. His expertise extends across all areas of structural engineering. He has a strong client focus and is outcome orientated. Aaron currently sits on the board of the Concrete Institute of Australia, Canberra chapter, and is passionate about mentoring junior engineers.

Anna Nagalingam


B.E. (Hons), B.Bus (Hons), Grad.Cert Geomechanics, MIE Aust, CPEng

Anna is a qualified Civil Engineer, Chartered Professional Engineer, and Director of Indesco. She has over 15 years experience, both in Australia and overseas. Anna specialises in project management and land development. She has been actively involved in a range of land development projects in the ACT.
Anna’s experience extends across a range of disciplines which affords her the flexibility to integrate quickly into project teams. Her strengths include effective stakeholder engagement and an in-depth understanding of ACT technical standards.

Anthony Pickrell CA

Chief Financial Officer

B.Com (Acc & Fin) and GradDipCA

Anthony is a Chartered Accountant with over 10 years experience with an international chartered accounting firm, having personally managed matters across multiple Australian industries and sectors including manufacturing/construction, transport, rural and agricultural business, commercial and residential property sales and management.

Associates and Principals


Viet Le

Technical Director

FIE Aust, CPEng, NPER, B.Eng – Graduate Diploma in Computing Studies

Viet is a Technical Director of Indesco and leads the Infrastructure and Land Development team. He has over 30 years experience in civil engineering, specialising in water resources and land development. Viet is a Chartered Professional Engineer and has gained extensive experience from international professional placements and significant ACT land development projects. His professional career has encompassed a wide variety of responsibilities relating to design, construction and institutional strengthening. Viet is regarded as a leading local authority in both water resources and land development. He prides himself on delivering innovative design solutions and thinking outside the box to generate real value for his clients.

Darren Flynn

Associate Director

BEng (Hons)(Civil & Env), DipEngPrac, CPEng, MIEAust, NER, RPEQ

Darren is an experienced engineer with over 20 years’ experience in both the public and private sectors, locally and overseas, in the planning, assessment, design and construction of development and infrastructure projects. His experience stems from a civil engineering and commercial background having strategic input into due diligence, servicing strategy, procurement and all parts of the project life-cycle through to completion.

Michael Merange

Principal Civil Engineer

B.Eng (Civil) (Hons), Road Safety Auditor (Level 1), IPWEA, MIE Aust

Michael is a qualified Civil Engineer with over 10 years experience, specialising in the delivery of traffic and transport projects. Michael is highly regarded for his skills in planning, detailed design and construction of transport and civil infrastructure projects. With an outcome focused approach, Michael delivers designs that best meet our client’s needs. His experience extends across sectors such as transport, urban renewal, active travel and maintenance.

Oliver Walsh

Principal Civil Engineer

B.Eng (Civil) (Hons), B.Com (InvFin & CorpFin), Accredited Mediator (NMAS), MIEAust

Oliver’s expertise is in civil project management, design, documentation and construction phase services. He has extensive experience in the project management, engineering design and superintendence of bulk earthworks, roadworks, sewer reticulation, stormwater drainage, retaining walls, water, gas and underground power reticulation for civil and land development projects.

Ryhan Thomson

Principal Civil Engineer

B.Eng (Hons), B.App.Sci (Env.), MIEAust

Ryhan has been appointed as Principal Civil Engineer and brings close to 20 years experience both in Australia and overseas. Since 2010 he has been based in the Illawarra working as Project Director on a broad range of urban development and civil infrastructure projects across the South Coast and South West Sydney regions.

Mark Rigoni

Principal Civil Engineer

M.Eng (Civil), B.Eng (Hons) (Env), MIEAust, CPEng, NER

Mark is a Chartered Professional Engineer with close to 15 years’ experience in the planning, design and construction management of development projects. His experience is across both government and private sectors throughout Australia and Canada. Mark has been primarily responsible for the project and construction management of urban development and civil infrastructure projects.

Kelly MacDonald

Principal Civil Engineer


Kelly is a Chartered Professional Engineer with over 14 years of engineering experience in both municipal and resource engineering sectors. He has designed several hundred kilometres of municipal and resource roads, designed numerous resource bridges, inspected hundreds of bridges and road structures, and has provided construction monitoring/on-site engineering services for various infrastructure projects in Australia and Canada.


Dave Southgate

Principal Structural Engineer

B.Eng (Hons), MIEAust, CPEng, NER, RPEQ VBA Building Practioner

Dave is a Senior Structural Engineer with over 10 years experience consulting within the Sydney area. Dave has built a reputation of success based on dedication to providing clients with cost effective and constructible solutions. With an eagerness to listen and engage with clients directly, Dave is able to provide designs that best meet client needs. Dave is experienced with a range of Structures and specialises in post tension design, concrete structures and shoring systems.

Mark Mobilia

Principal Structural Engineer

B.Eng (Hons), MIEAust, CPEng, NER, RPEQ Rail Industry Worker

Mark is a is a chartered structural engineer with 16 years industry experience in key roles for large scale structural engineering projects. Mark brings to Indesco knowledge and skills in planning, developing, designing and implementing efficient cost effective design solutions based on contractor and architectural requirements from concept through to construction.
Mark is an enthusiastic and results orientated Structural Engineer who has vast experience in a range of major projects covering sectors such as health, government, heritage refurbishments, industrial, commercial and residential.

Michael Smith

Principal Structural Engineer

B.Eng (Hons) (Civil), MIEAust, CPEng, NER

Michael is an experienced professional engineer, he has been involved in the civil and structural disciplines over the last nine years. During which he has been involved in several large projects in the Illawarra region including the lead designer of Wollongong’s tallest building. Michael prides himself in his ability to provide an efficient and cost effective structure on all size and scale of projects ensuring that they are delivered on time and within budget.


Darren Benson

Principal Construction Phase Services

Darren is a Senior Construction Manager with over 25 years experience in engineering and construction for both government
and the private sector. He has extensive experience in both project management and construction of civil projects, with key
strengths in leading multi-disciplinary teams for major residential and industrial land development projects, and road and
infrastructure projects.

Paul Brookbanks

Principal Landscape Architect


Paul is the Principal Landscape Architect in our Canberra office. With over 20 years of experience in landscape architecture and urban design, Paul has covered a wide range of national and international projects including the 2008 Beijing Athletes Village and Henry Rolland Park, West Basin. Paul is extremely passionate about great design solutions. His successful career has been built on a foundation of strong client engagement. Recent awards and recognition for Paul’s designs include national AILA awards, Wuxi Lihu Waterfront Parklands and Bengbu Longzi Lake Waterfront Parklands.

Senior Team Members

Nathan Turnbull

Senior Construction Manager

Dip.App.Sc, DipPM, Laboratory Techniques 2008, Cert IV

Nathan is a Senior Construction Manager with over 15 years experience in supervision, coordination and the construction management of civil infrastructure projects. Over the past 10 years Nathan has been in charge of delivering major land developments and civil infrastructure projects across the ACT for both private and public sector clients.

Kha Nguyen

Senior Civil Engineer

B.Eng (Civil) (Hons), Bachelor of Engineering (Mechanical)

Kha is a Senior Civil Engineer and Chartered Professional Engineer with over 8 years experience specialising in water resources and land development. Kha has been heavily involved in stormwater modelling, hydraulic master plans and road design of small to medium sized residential developments. Kha leads a team of designers, drafters and junior engineers to successfully achieve project outcomes.

Karl Martin

Senior Civil Engineer

B. Systems Eng (Hons)

Karl is a qualified Civil Engineer who has over 7 years experience in a variety of projects including land development,
infrastructure and building services. Karl specialises in Water Resources and land development and has expertise in
stormwater modelling and civil design.

Mark Hulme

Senior Civil Design Engineer


Mark is a Civil Design Engineer with over 8 years’ experience in civil engineering design, project management and project delivery. He has specialised experience in land development, linear works, bulk earthworks, stormwater, sewer, water servicing and water quality. Mark has applied this experience in his roles as lead designer and verifier on several large scale infrastructure projects in South West Sydney, Illawarra and Shoalhaven regions.

Rory Hentschel

Senior Water Resources Engineer

B.Eng (Hons) (Civil), MIEAust

Rory is a Senior Water Resources Engineer with 10 years experience working on stormwater drainage design, flood studies, dam break assessment, stormwater detention and design of stormwater quality solutions. These skills have been developed though work on projects for both the public and private sector and have been applied at the master planning level up to detailed design. He also has a proven track record of success working on major road upgrade and bridge projects for state government at the concept and detailed design phases.

Ziwar Al-Sattouf

Civil Project Manager

B.Eng (Civil), MIEAust

Ziwar is a well-rounded individual with experience in the delivery of projects during all stages of project lifecycle, from feasibility studies through to design management, construction supervision and project close-out. Construction Management, Utility Co-ordination, Superintendence and Consultant/Contractor Engagement are Ziwar’s key strengths.

Arron Tanoai

Project Manager – Infrastructure

Dip CivEng, Dip ProMgt, Cert IV CivCon

Arron is an Engineer and Project Manager with 6 years’ experience in design and construction delivery of civil infrastructure and land development projects for clients in both public and private sectors - including extensive experience coordinating and managing infrastructure design packages, and construction delivery for government authorities on major heavy rail and light rail projects in NSW and QLD.

Elyn Huang

Senior Structural Engineer

B.Eng, MIEAust

Elyn is a Senior Structural Engineer with over 5 years experience consulting within the Sydney area. Elyn is experienced with concrete structures and specialises in post tension concrete design. Elyn has built a reputation of working efficiently and productively. With a passion of doing structural engineering, Elyn is able to provide designs reliably and economically.

Thomas Hoang

Senior Structural Engineer

B.En(Hons), MIEAust

Thomas is an experienced professional structural engineer. Thomas has been involved in several large projects within the Canberra and Sydney regions including residential, educational, government, commercial and culture/leisure. Thomas is involved in all stages from concept, detailed design and construction.