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Grade Control Technician

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Onsite

Grade Control Technician

Golden Queen Mining Co LLC

Grade Control Technician

Skills

Testing & QA

8 days ago

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Important information


Contract type:

Permanent

Salary:

$46,446 – $79,955 / year

Location:

Mojave, CA 93501, USA

Work mode:

Onsite

Published on:

15 October 2026

What they need


Job Type

Full-time

Description

Grade Control Technician Job Description

Who We Are

Andean is a fast-growing precious metals producer operating across top-tier jurisdictions in the Americas. With two cornerstone assets — the San Bartolomé processing facility in Potosí, Bolivia, and the Soledad Mountain Project in Kern County, California — we are expanding our footprint and shaping the future of responsible mining.

Through Golden Queen Mining Co., LLC, we operate a modern gold and silver open-pit, heap-leach mine just outside Mojave. The site uses conventional open-pit mining, cyanide heap leaching, and Merrill-Crowe processing to recover gold and silver from crushed and agglomerated ore. This is mining at scale, powered by innovation, discipline, and a commitment to doing things the right way.

At Andean, our people are our most valuable resource and critical to our success. Our culture fosters inclusion, collaboration, and rewards success, positioning us to be the employer of choice in the communities where we operate.

Who You Are

You enjoy working outdoors in all types of weather. You are attentive to detail and able to work with data. You are a quick learner. You have strong computer skills and can easily learn new computer software. You communicate effectively and thrive in an environment where you coordinate team efforts to meet Company goals. This is a safety sensitive position

As the Grade Control Technician, you report to the Ore Control Supervisor.

What You Do

· Sample blast-holes on active drill patterns in a consistent and repeatable method.

· Under the guidance from the geologists, complete geological mapping assignments, both in the open pit environment and in the field.

· Complete applicable sampling and transportation requirements.

· Assist survey personnel with downhole scanning of voids, ore staking, and other field activities as needed.

· Develop and maintain a database/model with blast hole sample information, which is used to compare with main block-model.

· Help maintain a database of exploration and infill drill-hole information and have direct input into the grade/ounce reconciliation calculations and models.

· Complete geological mapping assignments, both in the open pit environment and in the field.

· Enter data and prepare work on geologic sections and level plans with a software package such as Leapfrog and/or Minesight in addition to using programs associated with GIS and ACAD.

· Visit mining faces often to see if the loading equipment are within ore/waste polygons that are set out by the Company’s survey crew.

· Interface with the mine-planning engineer to develop ore-polygons during a “release” of blast-hole data and to discuss ore grades past and future.

· Assist the Geology department with the management of all drilling programs and provide understanding of the orebody.

· Work closely with the laboratory department to ensure that a proper QA/QC protocol (as set by mine management) is rigorously adhered to.

· Coordinate input and information flow between Geology, Engineering, and the Mining departments.

· Be familiar with and comply with the Company’s health, safety, and environmental policies.

· Other duties as assigned.

What You Bring

· Self-motivated

· Effective communication skills.

· Able to communicate clearly and concisely when presenting information.

· Safely lift, carry, and handle materials and equipment weighing up to 50 lbs.

· Quick learner.

· Solid team member.

· Eager to drive projects forward.

· Able to work with minimal supervision.

· Maintain high standards and a professional presence.

· Able to work in adverse weather conditions and rough terrain.

· Knowledge of Minesite, GIS and AutoCAD.

· Driver’s license required.

What We Offer

We offer a competitive and comprehensive compensation and benefits package, which includes the following:

· 401K with Company Matching

· PPO & HMO Health Insurance Plans

· 9 Paid Holidays

· Vacation Accruals

Notice to recruitment and/or staffing firms:

The Company will not pay any fees for recruitment activities related to the hiring of a candidate for any position unless a services agreement has been entered into between the recruitment and/or staffing firm.

Go to www.goldenqueenllc.com for information on the Company and the Project.

Salary Description

$22.33 - $38.44 Per Hour

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