Demo

Senior Supervisor Mill Operations

Asarco LLC
Sahuarita, AZ Full Time
POSTED ON 7/11/2026
AVAILABLE BEFORE 11/8/2026

POSITION OVERVIEW

To ensure the consistent operation of the Mill Concentrator and its facilities including the Crushing Plants, Filtering Plant, Tailings, and ancillary equipment at the lowest possible cost in a safe and efficient manner

ESSENTIAL FUNCTIONS

  • Coordinates milling production and maintenance needs under the direction of the General Supervisor.
  • Enhance the existing Total Safety Culture Program and Environmental guidelines to ensure employee safety and health.
  • Monitors plant performance, identifies/troubleshoots deficiencies or failures and makes recommendations for improvement.
  • Supervises and directs the Concentrator and Crusher Supervisors in their daily activities.
  • Coordinates Operations with the Maintenance Department on all equipment including workforce, supplies, and scheduling to ensure low operating cost and downtime.
  • Communicates closely with the Mining Department to ensure cost effective operation of the Concentrator.
  • Maintains records to ensure effective scheduling of operations.
  • Liaison with Lab on purchasing and inventory of reagents and supplies and identification of problem areas.
  • Maintains a competent and effective supervisory and hourly workforce through effective personnel management.
  • Promotes improvement performance of subordinates through ongoing training, communication of ideas, techniques, and policies.
  • Communicates closely with Mill Planning/Maintenance Department and Electrical Department on maintenance activities affecting production.
  • Ensures that all operational work practices comply with company, State and Federal Safety and Environmental Standards.
  • Interacts with workforce, Human Resources, Safety Department, Purchasing, Accounting, etc., to ensure compliance with established company policies.
  • Interacts with Engineering Department and Mine Operations to ensure tailings impoundment availability and integrity are maintained.
  • Covers for the General Supervisor during absences.
  • Responsible for executing, supporting, and enforcing the Company's Environmental, Health and Safety program as required by OIS policy, directives, and principles.
Requirements:

REQUIRED KNOWLEDGE SKILLS AND ABILITIES

  • Strong interpersonal skills in developing consensus building.
  • Applicant must have good communications skills (oral and written).
  • Must be able to manage time effectively and set priorities.
  • Requires the ability to manage multiple tasks.
  • Must be proficient with MS Windows, MS Word, MS Excel, and MS Outlook.
  • Knowledge of SAP software is a plus.

REQUIRED EDUCATION AND EXPERIENCE

  • 5-10 years (minimum) of prior supervisory experience preferred.
  • 5-10 years (minimum) of prior concentrator operations experience preferred.
  • English language fluency.
  • At least CEFR B2 - Upper Intermediate: Can understand the main ideas of complex text on both concrete and abstract topics, including technical discussions in their field of specialization.

  • All employees are subject to annual physical examinations as a condition of employment.

A core value of ASARCO LLC is “Safety First.” The Company is committed to helping employees continuously improve their efforts to work in the most safe, inclusive, socially, and environmentally responsible manner practicable. Employee safety and health, both on and off the job, are critically important to the Company. Therefore, ASARCO LLC requires employees to have and effectively demonstrate a good working knowledge of modern safety systems. Each employee will take prime responsibility for ensuring that they work within all required safety procedures and processes.

ASARCO LLC is an equal opportunity employer. Candidates must possess a current and valid driver's license. Offers of employment are contingent upon a successful criminal background check and pre-employment physical including a drug screen.

ASARCO LLC offers an excellent low-cost benefits package for medical/prescription/ dental/vision, disability coverage, life insurance and other optional coverage and 401(k) plan with company match

Benefits:

401K Plan, Health Insurance, Vacation & Paid Time Off

Salary.com Estimation for Senior Supervisor Mill Operations in Sahuarita, AZ
$79,385 to $98,285
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