John O'Callaghan Email & Phone Number
Process Manager @ Ausenco
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John O'Callaghan Location
- Wattle Grove, WA, AU
John O'Callaghan Work
- 2026 - now Process Manager @
- 2025 - 2026 Director and Principal Metallurgist @ Red Antares Pty Ltd
- 2025 - 2025 Between roles @ undefined
- 2024 - 2025 Head of Metallurgy @ Hyperion Resource Partners
- 2021 - 2024 Head of Directional Studies - Metallurgy @
- 2014 - 2021 Head of Metallurgy @
- 2013 - 2014 Technology Manager - Gold Hydrometallurgy @
- 2011 - 2013 Technology Manager @
- 2004 - 2011 Group Technical Manager @
- 2004 - 2011 Risk Manager @
- 2009 - 2009 Ore Leach Manager @
- 2004 - 2006 Projects Manager (Acting) @
- 2003 - 2004 Commissioning Manager - Ravensthorpe Nickel Operations (Feasibility Study) @
- 2001 - 2003 Principal Process Engineer and Manager of Projects @ Bulong Nickel Operations
- 2000 - 2001 Manager of Metallurgy @
- 2000 - 2001 Lecturer in Extractive Metallurgy @
- 1996 - 2000 Consulting Senior Metallurgist - Pinares de Cuba Project (Perth, Toronto and Cuba) @
- 1996 - 2000 Senior Process Engineer - Nickel Technology @
- 1996 - 2000 Senior Process Engineer and Capital Cost Estimator - Yeelirrie Project (U and V) @
- 1996 - 2000 Principal Process Engineer @
- 1996 - 2000 Senior Process Engineer - Nickel and Cobalt Concentrates Hydrometallurgical Treatment @
- 1994 - 1996 Senior Process Engineer - McArthur River Pb-Zn Project @
- 1994 - 1996 Lead Metallurgist - Ernest Henry Copper Project @
- 1994 - 1996 Study Manager, Lead Process Engineer and Capital Cost Estimator - Olympic Dam Copper Leaching @
- 1993 - 1994 Lead Metallurgist @ Davy John Brown
- 1991 - 1992 Area Process Engineer - Calcination @
- 1991 - 1992 Production Supervisor @
- 1990 - 1991 Process Engineer - Queemsland Magnesia Project @ Davy McKee Pacific
- 1989 - 1990 Process Engineer @ Davy McKee Pacific
- 1988 - 1989 Senior Metallurgist - Kalgoorlie Gold Operations @
- 1986 - 1988 Plant Metallurgist - Emu Gold Mine @
- 1986 - 1986 Plant Metallurgist - Lady Bountiful Gold Mine (Commissioning) @
- 1985 - 1986 Graduate Chemical Engineer - Kwinana Nickel Refinery @
John O'Callaghan Education
- RMIT University
Chemical Engineering (Distinction) (Chemical Engineering)
1980 - 1984
John O'Callaghan Skills
- Interfacing R&D to Engineering to Operations
- Nickel
- Metallurgy
- Gold
- Mineral Processing
- Engineering
- Process Engineering
- Commissioning
- Copper
- Chemistry
- Process Optimization
- Problem Solving
- Engineering Management
- Troubleshooting
- Operations Management
- Base Metals
- Risk Management
- Plant Design
- Chemical Engineering
- Project Engineering
- Feasibility Studies
- Process Simulation
- Project Execution
- Business Process Improvement
- Risk Assessment
- Plant Commissioning
- Minerals
- Filtration
- Pilot Plant
- Continuous Improvement
- Process Development
- Change Management
- Leaching
- Alumina
- Autoclaves
- Mining
- Project Management
- Management
- Process Control
- Hydrometallurgy
- Process Design
- R&D
- P&ID
- Maintenance Management
- Solvent Extraction
- Plant Maintenance
- HAZOP
- Extractive Metallurgy
- Reliability Engineering
- HAZOP Study
- Leadership
- Metals
- Strategic Planning
- Operations
- Marketing
- Customer Service
- Supply Chain
John O'Callaghan Summary
- John O'Callaghan, based in Wattle Grove, WA, AU, is currently a Process Manager at Ausenco. John O'Callaghan brings experience from previous roles at Red Antares Pty Ltd, undefined, Hyperion Resource Partners and Newcrest Mining Limited. John O'Callaghan holds a 1980 - 1984 Chemical Engineering (Distinction) in Chemical Engineering @ RMIT University. With a robust skill set that includes Interfacing R&D to Engineering to Operations, Nickel, Metallurgy, Gold, Mineral Processing and more. John O'Callaghan has 1 emails and 1 mobile phone numbers on RocketReach.
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