Department Management

Shepherd Kadzviti

Shepherd Kadzviti is Snowden Optiro’s Head of Advisory for EMEAA based in Johannesburg. He has more than 34 years’ experience in exploration geology, mining geology, mineral resource estimation and mineral resource management. He has worked for several mining companies in…

Danny Tolmer

Danny Tolmer is Snowden Optiro’s North American Regional Manager.  He has more than 20 years of mine operational and consulting experience specialising in both open pit and underground mine optimisation.  He has experience in project economic evaluation, open pit drill…

Gary Pattenden

Gary Pattenden, Manager - Reconcilor, Snowden Optiro

Gary Pattenden, Manager – Reconcilor has more than 26 years of experience in the software industry, with over 10 years spent working exclusively in mining and reconciliation. He has played a key role in the implementation of Reconcilor at many…

Tarrant Elkington

Tarrant Elkington is Snowden Optiro’s Executive General Manager. He has more than 16 years of mine consulting experience specialising in mine optimisation and M&A Due Diligence. Tarrant specialised in mining strategy selection, early stage scoping studies, project management, and providing…

Hamish Guthrie

Hamish is the Managing Consultant of Snowden Optiro’s Mining services. He has more than 25 years of mining experience with a focus on underground and open pit metalliferous mining. His experience covers many mining engineering roles in the mining industry…

Alessandro Silva

Alessandro Silva is Snowden Optiro’s Head of Advisory for the Americas. He is a geologist with MSc qualifications in geostatistics, resource evaluation and metallogeny. He has more than 21 years’ international experience in the mining industry working in operations and…

Mark Warren

Mark is an Executive Consultant with our Corporate services. He is a Chartered Professional Engineer with more than 35 years’ international industry experience across a range of sectors with particular focus on the global mining industry. His experience includes Board,…