Designation Principal Consultant

Rowdy Bristol

Rowdy is a Principal Consultant with our Geology Division. He has deep familiarity with linear and non-linear resource estimation techniques, such as ordinary kriging, indicator kriging, inverse distance, conditional simulation, uniform and local uniform conditioning.  Rowdy, has more than 30…

Richard Fry

Richard has been involved in the field of geotechnical engineering, principally for mining and tunneling projects for more than 35 years. He has worked on projects in the UK, Ireland, Australia, Africa, S America and Asia. He joined Snowden’s Brisbane…

Pablo Borges

Pablo is a Principal Resource Geologist based in Brazil. He has more than 15 years’ experience in Mineral Resources estimation, Mine Geology and Exploration for gold and copper deposits. He’s worked at Jacobina Gold Mine for Yamana, Córrego do Sítio…

Jennifer Claughton

Jennifer is a Principal Consultant in the Reconcilor team. She has has been working in the software industry since 2000, with more than 15 years in Mining IT and IoT solutions in reconciliation and mining data management. Jennifer has a…

Matthew Cotterell

Matthew is a mining engineer with more than 25 years’ surface mining industry experience, with almost 20 years in a consulting role. Since joining Snowden, now Snowden Optiro, he has worked on numerous studies from scoping to feasibility level standard…

Deon de Villiers

Deon is a Principal Consultant working with Reconcilor. He is responsible for the implementation, support and account management of new and existing Reconcilor clients. Deon has more than 16 years of experience in the mining, laboratory services and stolen vehicle…

Jane Levett

Jane is an Associate Principal Consultant in the Geology division. She has more than 20 years of experience in exploration, mine and resource geology working with companies including Gold Road, Gold Fields, Newcrest, Rio Tinto, and Optiro. She has geological…

Gilberto Takahashi

Gilberto is a mining engineer with extensive experience in the application of new technologies and software in the mining area. He graduated in Mining Engineering from Escola Politécnica da Universidade de São Paulo in 1991. He has experience in geological…

Vince Agnello

Vince Agnello is a Competent Valuator (CoV) and consultant to the mining industry. He has more than 20 years’ industry experience; with 16 of those years as a CoV in all major commodities, minor minerals, and within a host of…

Julian Aldridge

Julian has more than 18 years of experience as a geologist in resource assessment / mineral exploration and project management of grassroots to feasibility stage projects. He is skilled in 3D modelling, resource assessment, QAQC assessment and data/statistical analysis. He…