Relief Operator

U.S. Silica; Mill Creek (OK); On-site; USD 65,000 - 90,000; Full time

Job summary

U.S. Silica is seeking a Relief Operator in Mill Creek, OK to operate and monitor multiple production units and troubleshoot basic process issues with limited supervision.

The role involves analyzing control-system data, performing routine start-ups/shut-downs, maintaining logs, and ensuring safety and quality standards across shifts. Experience with SCADA/PLC/DCS and a strong safety mindset are essential, with preference for MSHA knowledge and forklift experience.

Qualifications

• High school diploma or GED required; technical diploma or associate degree preferred.
• Minimum 3-5 years of plant operations experience in a similar industry.
• Safety-focused with attention to quality.
• Able to multi-task in fast-paced environments and perform physical tasks.
• Proficient with control systems and data reporting.

Responsibilities

• Operate, monitor, and adjust plant machinery and control systems to ensure optimal performance.
• Analyze data from control systems and instrumentation to detect abnormal conditions.
• Troubleshoot mechanical, electrical, or process systems.
• Lead or assist start-up and shutdown procedures of plant units.
• Maintain logs and reports of operations, maintenance, and safety incidents.
• Ensure compliance with operational, environmental, and safety standards.
• Supervise or mentor Plant Operator I staff during shifts.
• Coordinate with maintenance, engineering, and quality teams for repairs or adjustments.

Skills

Leadership/mentoring

Multi-tasking

Safety awareness

Problem-solving

Computer literacy

Education

High school diploma or GED

Technical diploma or associate degree (preferred)

Tools

SCADA

PLC

DCS

Job description

Relief Operator operates multiple production units, monitor control systems, and troubleshoots basic process issues with limited supervision.

Responsibilities

• Operate, monitor, and adjust plant machinery and control systems to ensure optimal performance.
• Analyze data from control systems and instrumentation to detect abnormal conditions.
• Perform routine and advanced troubleshooting of mechanical, electrical, or process systems.
• Lead or assist in the start-up and shutdown procedures of plant units.
• Maintain accurate logs, records, and reports of operations, maintenance, and safety incidents.
• Ensure compliance with all operational, environmental, and safety standards.
• Supervise or mentor Plant Operator I staff during shift operations.
• Coordinate with maintenance, engineering, and quality teams for repairs or adjustments.Participate in safety meetings, audits, and drills..
• Identify opportunities for process improvements and energy savings..
• Additional duties as assigned.

Qualifications

• High school diploma or equivalent required; technical diploma or associate degree preferred.
• Minimum 3-5 years of plant operations experience in a similar industry (e.g., power, chemical, manufacturing, water treatment).
• High level of safety and quality.
• Ability to multi-task at a fast-pace (at times), work in outside conditions during all seasons, climb multi-levels by stairs & ladders, work from elevated platforms, use hand tools (shovel, hammer, wrenches, etc.)
• Good problem-solving skills.
• Proficiency in operating control systems (SCADA, PLC, DCS).
• Strong mechanical and/or electrical aptitude.
• Working knowledge of industry regulations and safety standards (e.g., OSHA, EPA, ISO).
• Basic computer literacy for reporting and data entry.
• Mine Safety and Health (MSHA) Knowledge - Preferred
• Forklift experience - Preferred
• Computer Software - Preferred
• Warehouse experience - Preferred

About Us

U.S. Silica is a leading producer of industrial minerals essential to modern life. With $1B+ in annual revenue, 26 production facilities, and industry-leading last-mile logistics for the oil & gas sector, we supply high-quality silica, diatomaceous earth, clay, and other materials to industries ranging from energy and construction to food & beverage.

As a portfolio company of Apollo Global Management, we are positioned for strategic growth in both our Oil & Gas and Industrial segments. For more than 100 years, our products and innovations have helped make the world cleaner, safer, and more energy-efficient.

U.S. Silica is a leading producer of industrial minerals essential to modern life. With $1B+ in annual revenue, 26 production facilities, and industry-leading last-mile logistics for the oil & gas sector, we supply high-quality silica, diatomaceous earth, clay, and other materials to industries ranging from energy and construction to food & beverage.

As a portfolio company of Apollo Global Management, we are positioned for strategic growth in both our Oil & Gas and Industrial segments. For more than 100 years, our products and innovations have helped make the world cleaner, safer, and more energy-efficient.

U.S. Silica is an equal opportunity employer for all without regard to race, gender, color, religion, national origin, disability, veteran status, or any other characteristic protected by applicable federal, state, or local law. U.S. Silica is a smoke- and drug-free workplace.

Job Info

• Job Identification 353
• Job Category Operations
• Posting Date 07/23/2026, 03:47 PM
• Degree Level High School Diploma or GED
• Job Schedule Full time
• Locations 13600 West Murray Road, Mill Creek, OK, 74856, US (On-site)