Mine Supervisor

Company Information

Interstate Earthworks, LLC is a Wilks Brothers company. Wilks Brothers is a multifaceted, family-based partnership headquartered in Cisco, Texas with employees working in offices in Cisco, Willow Park, Fort Worth, Houston, and beyond. We invest in relationships and recognize the value in people, communities, and businesses. Our customers are not a number; they are a name, a family member, a friend.

In the good times and in difficult times we treat them all equally – exactly how we want to be treated. We believe that business is not just about profit – it is personal too. At Wilks Brothers, we respect the people that make our business grow: our employees and our customers. Our goal is to develop mutually beneficial partnerships utilizing our core values of:
Faith, Integrity, Team, Growth and Loyalty.

We do not offer visa sponsorship for this position.

This position will be on site in San Antonio and West Texas.

This position is eligible for overtime.

• Competitive Compensation Package
• Medical + Dental + Vision Coverage
• 401K + Company Match
• Life Insurance + Long Term Disability Coverage – 100% Company Paid
• Health Savings Account (HSA)
• Tuition Reimbursement Program
• Wellness Check Program - Insurance Premium Discounts
• EAP Resources
• Voluntary Benefit Offerings
• Paid Holidays
• Paid Time Off (PTO)

The Mine Supervisor is responsible for overseeing the daily operations of the mining site, ensuring safe, efficient, and compliant production. This role involves supervising staff, coordinating equipment and resources, and maintaining adherence to company policies, environmental regulations, and safety standards. The ideal candidate has hands‑on mining experience, strong leadership skills, and a commitment to operational excellence.

• Supervise and coordinate mining operations, including excavation of raw material, loading, and hauling activities.
• Ensure all mining activities comply with federal, state, and local regulations, including safety and environmental standards.
• Manage and mentor on‑site staff, including equipment operators, laborers, and other personnel.
• Schedule daily, weekly, and monthly operations to maximize production efficiency.
• Inspect equipment and coordinate maintenance to prevent downtime and operational hazards.
• Monitor production metrics and maintain accurate records of output, equipment usage, and personnel activity.
• Conduct safety meetings, enforce safety protocols, and investigate incidents or near‑misses.
• Collaborate with management to implement process improvements and cost‑saving initiatives.
• Maintain effective communication with company leadership, regulatory agencies, and other stakeholders.

• Minimum of 5 years of experience in mining operations, with at least 2 years in a supervisory role.
• Strong knowledge of mining equipment, production processes, and safety regulations.
• Leadership skills with the ability to motivate and manage a diverse team.
• Excellent problem‑solving, organizational, and communication skills.
• Ability to read and interpret mining plans, maps, and technical documents.
• Proficiency in using computers and mining software for reporting and operational tracking.
• Valid driver’s license; heavy equipment certification is a plus.
• Must be able to effectively communicate in the English language, both written and verbally.

• Bending, lifting, climbing, pushing, pulling, kneeling, sitting stand, walk, kneel, stoop, squat, pull, push, climb, crouch, crawl, talk, hear, and see and standing (occasionally) for long periods of time.
• The essential duties of this position require moderate to heavy lifting and carrying.
• Must be able to position oneself to work in confined spaces such as trenches, pits, manholes, attics, and tunnels and demonstrate manual dexterity and be able to use hands to handle, or feel objects, tools, or controls.
• Exposure to moderate noise levels, vibrations, and bright lights; and exposure to dust, fumes, and gases; and all climate types including hot and cold temperatures, humidity, rain, snow, etc.
• Able to wear common protective or safety equipment such as safety shoes, glasses,…