Julio Juarez, CIP
General Manager, Lima
Mr. Juarez is a geological engineer with more than 15 years of experience providing geotechnical, geological and geo-environmental services to the international mining industry…Read more (Español)
Justin Knudsen, P.E., Q.P.
Sr. Geotechnical Engineer
Mr. Knudsen is a Professional Engineer (Civil/Geotechnical B.S. and M.S.) and project manager with more than 16 years of experience in the mining industry applying his geotechnical expertise designing…Read more (Español)
Francisco Barrios, P.E., MBA
Sr. Civil Engineer
Mr. Barrios has over 15 years of experience in the civil/environmental engineering field for the mining industry. He is experienced in design, planning, construction, and project…Read more (Español)
Adrien Butler, P.E.
Sr. Civil Engineer
Ms. Butler is a Project Civil Engineer with 14 years of professional civil engineering experience in the mining industry. Her experience has focused on the design of tailings storage facilities, heap leach pads, and…Read More (Español)
Matthew L. Fuller, C.P.G., L.E.G., P.Geo, QP
Mr. Fuller, CPG, LEG, P.Geo. is a Founding Principal of Tierra Group International, Ltd. Matt’s professional experience spans more than 30 years applying geological, geotechnical, geo-environmental and geological hazards, design and consulting services to tailings dam design, construction, and operations management. Matt is Tierra Group’s Chief Tailings Steward specializing in…Read More (Español)
Peter E. Kowalewski, P.E., Q.P.
Mr. Kowalewski is a Principal Engineer with over 27 years of experience in hydrology and hydraulics as well as geotechnical engineering of mine waste containment facilities such as heap leach facilities (HLF) and tailings dams and the design of water management facilities, such as water storage dams, spillways, and diversion canals. His experience includes permit application development and compliance for various aspects of mine operations and closure. Areas of specialty include…Read more (Español)