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GM
Maintenance Technician - Prose Canopy
Greystar Management Services, LLC
Cypress, TX
- $21.75 to $24 USD / hour
Incumbents must have EPA certifications Type 1 and II or Universal for refrigerant recycling · Incumbents must have all certifications as required by State and Local jurisdictions
Added just now
GM
Maintenance Supervisor - Ten310
Greystar Management Services, LLC
Los Angeles, CA
- $34 to $36 USD / hour
Incumbents must have all certifications as required by State and Local jurisdictions · Incumbents must have a valid driver’s license to operate a golf cart on the property, if applicable
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GM
Assistant Community Manager - Pearson Square
Greystar Management Services, LLC
Falls Church, VA
- $25.5 to $27.5 USD / hour
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to drive a golf cart on property
Added just now
Community Manager - Silos Harvest Green
Greystar Management Services, LLC
Richmond, TX
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions
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GM
Leasing Professional - Arbor View Townhomes
Greystar Management Services, LLC
Port Wentworth, GA
- $16 to $18 USD / hour
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to operate a golf cart on property
Added just now
GM
Assistant Community Manager - Silos Harvest Green
Greystar Management Services, LLC
Richmond, TX
- $19.5 to $22 USD / hour
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to drive a golf cart on property
Added just now
GM
Leasing Professional - Brio at Lookout
Greystar Management Services, LLC
San Antonio, TX
- $16.5 to $18 USD / hour
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to operate a golf cart on property
Added just now
GM
Maintenance Technician - Avana Lake Norman + Avana Landing
Greystar Management Services, LLC
Mooresville, NC
- $22 to $24 USD / hour
Incumbents must have EPA certifications Type 1 and II or Universal for refrigerant recycling · Incumbents must have all certifications as required by State and Local jurisdictions
Added just now
GM
Dual - Site Maintenance Technician - Fairview Green and Placita Park
Greystar Management Services, LLC
Santa Ana, CA · Santa Fe Springs, CA
- $21.1 to $23.1 USD / hour
Requirements: 1-2 years of property maintenance experience required · Incumbents must have EPA certifications Type 1 and II or Universal for refrigerant recycling
Added just now
GM
Multi - Site Maintenance Technician - Pierside North and South
Greystar Management Services, LLC
Oceanside, CA
- $25 to $27 USD / hour
Requirements: 1-2 years of property maintenance experience required · Incumbents must have EPA certifications Type 1 and II or Universal for refrigerant recycling
Added just now
GM
Leasing Professional - Alexan Riverside
Greystar Management Services, LLC
Austin, TX
- $17 to $20 USD / hour
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to operate a golf cart on property
Added just now
Leasing Professional - Residences at the Collection
Greystar Management Services, LLC
Carrollton, TX
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to operate a golf cart on property
Added just now
Leasing Professional - Cascades at Southern Hills
Greystar Management Services, LLC
Tulsa, OK
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to operate a golf cart on property
Added just now
GM
Maintenance Supervisor - Alexan LoSo
Greystar Management Services, LLC
Charlotte, NC
- $30 to $32 USD / hour
Incumbents must have all certifications as required by State and Local jurisdictions · Incumbents must have a valid driver’s license to operate a golf cart on the property, if applicable
Added just now
GM
Service Technician - Copperwood Apartments
Greystar Management Services, LLC
Westminster, CO
- $22 to $23 USD / hour
Incumbents must have EPA certifications Type 1 and II or Universal for refrigerant recycling · Incumbents must have all certifications as required by State and Local jurisdictions
Added just now
Assistant Property Manager - Yardly Town Center
Greystar Management Services, LLC
Anna, TX
Incumbents must have all licenses and/or certifications as required by State and Local jurisdictions · Incumbents must have valid driver’s license to drive a golf cart on property
Added 1 min ago
HC
TB Surveillance Epidemiologist
Harris County
Houston, TX
- $25 USD / hour
Valid Driver's License (Texas upon hire) along with a good driving record for regular local travel when needed to attend other local health departments or State, Regional Health d
Added 2 mins ago
Territory Manager (San Diego, CA/Orange County) – Johnson & Johnson MedTech – Neurovascular
DePuy Synthes Sales, Inc. Legal Entity
San Diego, CA
Must have and maintain knowledge of healthcare industry, medical device industry, disease states, and therapeutic and institutional trends · Must have valid driver’s license in the state of residence, advanced computer skills, and the ability to multitask without direct oversight of manager
Added 2 mins ago
Field Director – Lymphoid & Myeloid Malignancies (LMM) - Western US
Janssen Scientific Affairs, LLC Legal Entity
CA · ID · NV · WY · MN · TX · MI · IL · WI · LA · NM · WA · OK · OR · KS · UT · CO
The primary role of the Field Director is to provide support, coaching, and development to each of their direct reports (MSLs), utilizing the skills framework, routine feedback, and…
Added 2 mins ago
Field Director – Lymphoid & Myeloid Malignancies (LMM) - Eastern US
Janssen Scientific Affairs, LLC Legal Entity
Boston, MA · PA · Washington, DC · NC · MA · SC · NJ · ME · OH · FL · NY
The primary role of the Field Director is to provide support, coaching, and development to each of their direct reports (MSLs), utilizing the skills framework, routine feedback, and…
Added 2 mins ago
MC
Urban District Public Service and Maintenance Team, Grade N17
Montgomery County (MD)
Silver Spring, MD
- $29.62 to $46.55 USD / hour
Tracking team and shift deliverables; ensure staff adhere to safety standards in delivery of program services; and assist with inventory tracking and management.
Added 2 mins ago
MC
Land Survey Supervisor, Grade N24
Montgomery County (MD)
Gaithersburg, MD
- $39.59 to $63.39 USD / hour
Review CAD Template development, Data filing of survey data (from internal and external sources).
Added 2 mins ago
FR
Supervising Crime Scene Technician - City of Fresno
Fresno Regional Workforce Development Board
Fresno, CA
- $82,812 to $100,140 USD / year
TO QUALIFY, an applicant must have the following:
Added 2 mins ago
C
Quality Control Technician
CRH
San Rafael, CA
- $32 to $40 USD / hour
Dutra Materials, A CRH Company, values a culture of growth, development, and internal promotion. We are a dynamic, growth-oriented, national aggregate, asphalt, concrete, and construction…
Added 2 mins ago
Highway Asphalt Paving Superintendent
CRH
Idaho Falls, ID
…formula for growth is to champion the safety, empowerment, and development of our employees. We strive to be the preferred source of quality sand, rock, landscape products, ready-mixed…

Asarco LLC

Chief Geologist

Sahuarita, AZ, United States

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Job details

Education: Bachelor’s degree
Posting language: English

Original job description

The Chief Geologist leads all mine‑site geological activities for a high‑tonnage open‑pit, Cu-porphyry-skarn, processing sulfide ore by flotation. Emphasis is on short‑range grade control and ore routing, geometallurgical domaining, resource growth, rigorous data collection/QAQC, and timely geological inputs to mine planning. The role reports to the Technical Services Manager and collaborates closely with the Corporate Technical Team and Corporate Resource Manager. The position operates with minimal supervision, exercises sound professional judgment, and demonstrates visible leadership in safety, environmental stewardship, and cross‑functional teamwork with Operations, Planning, Geotechnical, Hydrogeology, and Metallurgy.

Duties & Responsibilities:

Lead and supervise the Mine Geology and Ore Control teams (geologists, technicians, samplers); ensure contemporary training, competency, and an inclusive, high‑performance culture
Oversee daily geological mapping, sampling, and logging- capturing lithology, structure, alteration, and mineralization at appropriate scales for ore control and reconciliation.
Own short‑range ore control: manage blasthole sampling and assay QAQC (CRMs, blanks, duplicates), blast‑movement correction, and generation of clean dig polygons and grade control models; differentiate mill (sulfide) vs. blend vs. waste as required.
Integrate pit mapping, drilling, and survey data into the Leapfrog Geo 3‑D model (with Seequent Central or equivalent) to maintain current, auditable interpretations for dispatch, short‑range, and mid/long‑range plans.
Collaborate with Mine Engineering (Hexagon MinePlan/MineSight) to deliver reliable geological constraints for short‑, mid‑, and life‑of‑mine plans; steward density models and dilution/loss assumptions.
Lead grade reconciliation (daily/weekly/monthly): ore control vs. plant vs. resource model (tonnage, grade, metal, spatial); diagnose variances and adjust domaining, parameters, or practices accordingly.
Coordinate drill programs - infill, metallurgical, condemnation, and exploration - including design, supervision, sampling, chain‑of‑custody, laboratory interfaces, and full QAQC adherence.
Partner with Metallurgy to define geometallurgical domains controlling throughput, recovery, reagent consumption, and concentrate quality and support blending and Mine‑to‑Mill strategies.
Direct field geology and structural mapping (including UAV/LiDAR); provide structural models and rock‑type controls to Geotechnical and Hydrogeology for slope design inputs and pore‑pressure management.
Develop and evaluate resource expansion opportunities; plan and interpret RC/diamond drilling; advance concepts efficiently from target to decision.
Maintain a single‑source‑of‑truth geoscience database (e.g., acQuire or equivalent); enforce data governance, coding standards, and version control; automate dashboards and reporting (GIS/Power BI).
Ensure all technical records, block models, and geological disclosures are SEC S‑K 1300 compliant and aligned with international best practice standards, and contribute to QP‑level documentation for Technical Reports.
Provide timely geological input to waste characterization, permitting, and environmental management.
Manage contractors and budgets (drilling, labs, consultants); track cost, quality, schedule, and HSE performance.
Promote a strong safety culture and regulatory compliance; lead field risk assessments, task observations, and continuous improvement.
Prepare technical memos, presentations, and training materials; clearly translate geologic complexity into actionable guidance for operations.
Other duties as assigned that advance orebody knowledge, safe production, and value generation.

Knowledge, Skills & Experience:

Bachelor’s degree in Geology or Geological Engineering required; M.S. in Economic Geology preferred.
Minimum 8 years in open‑pit mine geology for copper operations (grade control, modeling, reconciliation); 10+ years and prior team leadership preferred.
Deep understanding of porphyry-skarn copper systems, including hypogene/supergene processes, oxide–transition–sulfide behavior, and geometallurgical implications for flotation.
Proficiency in Leapfrog Geo and geological modeling best practices; experience integrating mapping and drill data; competency with acQuire, Hexagon MinePlan/MineSight or similar, and ArcGIS/QGIS; familiarity with analytics/visualization.
Demonstrated success in QAQC program design and execution, resource classification, and compliance reporting standards.
Proven leadership, team development, contractor management, and cross‑functional collaboration with Operations, Planning, Metallurgy, Geotechnical, and Hydrogeology.
Excellent technical writing and presentation skills; ability to prioritize, manage multiple workstreams, and deliver to deadlines.
Valid driver’s license; ability to work safely in pit conditions and lead by example in the field.

ASARCO LLC provides equal opportunity for all individuals without regard to race, color, creed, religion, age, national origin, sex, pregnancy, sexual orientation, gender identity or expression, genetic information, actual or perceived disability, military status, veteran status, marital status, familial status, or any other characteristic(s) protected by local, state, or federal law(s).

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Jobs in the United States