Senior Engineering Personnel

David Duff

Principal Geotechnical Engineer

BE (Hons), MEngSc, FIEAust, CPEng, NER, RPEQ

David has over 20 years of experience working in geotechnical consultancies in Australia. He has extensive experience in investigation, design and construction of major infrastructure and transport projects as well…

Suren Karasu

Principal Geotechnical Engineer

BE(Civil) Hons MEngSc, FIEAust, CPEng, NER

Suren has over 25 years of experience as a geotechnical consulting engineer in Australia and Malaysia. He has extensive experience as a project manager, designer and reviewer of multidisciplinary water,…

David Willows

Principal Geotechnical Engineer

BE (Civil) Hons, MIEAust, CPEng, NER, A.CIRCEA

David is a Principal Geotechnical Engineer with a background in the assessment of civil engineering failures and damaged structures. David’s role involves specialist consulting services, such as landslide risk management,…

Thomas Dale

Senior Geotechnical Engineer

BEng (Civil) Hons MIEAust

Tom has over 6 years of experience in geotechnical engineering after making the transition from several years as a consulting civil and structural engineer. Tom’s role as the geotechnical operations…

Sahar Mamouri

Senior Geotechnical Engineer

BE Civil, MEngSc, CPEng, NER

Sahar is a Senior Geotechnical Engineer and has over 13 years of experience in the fields of geotechnical and civil engineering and has completed hundreds of geotechnical investigation reports for…

Denny Jacob

Geotechnical Engineer

BE (Civil) ME (Geotechnical)

Denny has over 6 years of experience working in the United States and Australia on a wide range of geotechnical and civil engineering projects which include site development, contaminated land,…

Lubos Melicharek

Senior Geotechnical Engineer

BE (Mining), MIEAust, CPEng, NER

Lubos has over 20 years of experience within the geotechnical field throughout Sydney and NSW. in Australia.  He has vast and wide acquired knowledge of field investigations, drilling, coring, sampling,…

Attila Uz

Senior Geotechnical Engineer

BE(Honors), MIEAust

Attila has 6 years of experience as a practising geotechnical engineer. He has undertaken geotechnical investigations, analysis and design, including slope stability assessments and soft soil foundation analysis and design.…

Shaun van Kal

Senior Engineering Geologist


Shaun is a Chartered Geologist (Geological Society of London) with over 12 years’ experience in the fields of engineering geology, geotechnics and geotechnical investigations. Shaun has a diverse range of…