GUILLERMO SORNIA
El Centro
Summary
Experienced and dependable with a strong background in precious metals mining, laboratory management, equipment operations, construction, and military engineering. Known for a solid work ethic, attention to detail, and commitment to doing the job right the first time. I take pride in supporting the team and stepping into different roles to keep projects moving safely and efficiently. Ready to bring my skills, reliability, and drive to be an asset to your organization.
Overview
37
37
years of professional experience
Work History
Equipment Operator I
Imperial County Department of Public Works - Road Department
05.2024 - 05.2025
- Responsible for the safe operation of equipment, vehicles, and tools to maintain and repair county roads and bridges.
- Operated self-propelled road cutters and tractor-drawn compactors to install black top material when maintaining roads.
- Replaced broken or missing lumber beams or rails on county bridges.
- Performed flagger duties (traffic control) and set up barricades for road closures to monitor and ensure the safety of the public.
- Assisted in the process of removing old black top material from roads, conditioned roads for new material replacement, and laid out (re-paved) roads.
Refinery & Laboratory Supervisor
Equinox Gold Mining, Corp. / Mesquite Mine
06.2018 - 04.2022
- Responsible for the safe operation and maintenance of the assay laboratory and the refinery (gold smelting) plant and all auxiliary equipment.
- Directed the assay laboratory and the refinery plant teams to ensure that production schedules were met in compliance with safety and environmental guidelines.
- Oversaw the analysis of all mine, exploration, refinery plant, and environmental samples, in a timely, safe and accurate manner.
- Evaluated procedures and implemented changes as required to improve safety and production efficiency.
Senior Laboratory Technician
Newgold Mining, Corp. / Mesquite Mine
01.2006 - 06.2018
- Analyzed geology ore samples for gold and sulfur content.
- Analyzed plant solution and leach pad samples for gold content, cyanide concentration and pH levels.
- Analyzed carbon, plant solution, and gold concentrate samples for mercury levels.
- Ordered and took inventory of materials to maintain laboratory equipment and supplies.
- Responsible for monitoring and reporting laboratory QA/QC and implemented changes as required to improve safety and production efficiency.
Plant Operator II
Western Mesquite Mines, Inc. / Mesquite Mine
05.2004 - 01.2006
- Operated, maintained and troubleshot process plants and equipment for the purpose of gold and silver production.
- Analyzed solution samples for gold content, pH levels, and cyanide concentration.
- Laid out drip solution system for gold leaching process.
- Monitored, maintained and adjusted cyanide solution rate flows to ensure maximum leaching efficiency.
- Adhered to all company rules and procedures.
Production Operator VI
United States Gypsum Company / Plaster City Quarry
11.2002 - 05.2004
- Operated and troubleshot production plants and mining equipment for the purpose of gypsum product manufacturing.
- Performed laboratory testing; analyzed gypsum mineral and reported results in a timely, safe and accurate manner.
- Performed certified scale master duties; created, issued and released orders for product transportation.
- Adhered to all company safety rules and procedures.
Powderman II / Drill Operator
Newmont Mining Company / Mesquite Mine
06.1995 - 05.2002
- Supported Mine Operations department by blasting and fragmenting mine areas for the purpose of excavating precious ore material.
- Laid out blast areas, set up and operated drilling equipment for blast holes.
- Loaded specified amount of explosive into blast holes and detonated blast area.
- Performed perimeter safety area inspection, cleared blast and notified mining departments to continue mining operations.
Handyman
Self Employed, Imperial Valley
08.1991 - 05.1995
- Performed different aspects of residential construction work, such as framing, roofing, plastering, concrete work, plumbing, and remodeling.
- Operated different machinery and equipment used in construction.
- Planned layout and installation of residential electrical wiring and plumbing fixtures.
Bridge Specialist 12C10
United States Army 93rd Engineer Company (AFB)
03.1988 - 04.1991
- Supported Army infantry and artillery in combat readiness missions by providing engineered bridging for streams and dry gaps.
- Assisted in the assembly, erection, and disassembly of floating and prefabricated bridges.
- Assisted in rigging; prepared, maintained, and operated assault float boats.
- Responsible for the safe operation of equipment, supplies, and the supervision and welfare of a squad of Army personnel.
Education
Imperial Valley College
Imperial, CA05-2026
Carpentry and Masonry Specialist
US Army
Fort Eustis, VA01.1992
Bridge Crew Specialist
US Army
Fort Leonard, MO01.1991
General Education / High School Diploma - undefined
Brawley Union High School
Brawley, CA01.1987
Skills
- Team management
- Strong organizational abilities
- Analytical testing and QA/QC documentation
- Process plant operation
- Skilled in utilizing various computer software for data analysis and documentation
- Knowledgeable in safety compliance standards for MSHA and OSHA
- Fluent in English and Spanish
- Skilled in operating and maintaining heavy machinery
- Class A commercial driver's license
- Power tool operation
- Concrete and carpentry expertise
- Residential drafting expertise
- Proficient in traffic control measures
- Road and bridge construction expertise
- Military engineering expertise
Timeline
Equipment Operator I
Imperial County Department of Public Works - Road Department
05.2024 - 05.2025
Refinery & Laboratory Supervisor
Equinox Gold Mining, Corp. / Mesquite Mine
06.2018 - 04.2022
Senior Laboratory Technician
Newgold Mining, Corp. / Mesquite Mine
01.2006 - 06.2018
Plant Operator II
Western Mesquite Mines, Inc. / Mesquite Mine
05.2004 - 01.2006
Production Operator VI
United States Gypsum Company / Plaster City Quarry
11.2002 - 05.2004
Powderman II / Drill Operator
Newmont Mining Company / Mesquite Mine
06.1995 - 05.2002
Handyman
Self Employed, Imperial Valley
08.1991 - 05.1995
Bridge Specialist 12C10
United States Army 93rd Engineer Company (AFB)
03.1988 - 04.1991
Carpentry and Masonry Specialist
US Army
Bridge Crew Specialist
US Army
General Education / High School Diploma - undefined
Brawley Union High School
Imperial Valley College