Production Supervisor

Job Title: Production Supervisor

Why consider a career at MLC?

MLC was recognized by Newsweek as one of America’s Greatest Workplaces & received an EcoVadis Sustainability Rating for our continued commitment to sustainability.

• Highly collaborative work environment focused on growth and innovation

• Safety and sustainability are top priorities

• Excellent compensation, benefits, generous perks; focused on employee wellbeing

• Great development and advancement opportunities

• Bring your real self to work, come grow with us!

MLC operates the largest lime facility in the Americas and mines some of the purest limestone reserves in the world…and we are global! The company is committed to development and employee satisfaction. Join our outstanding team!

Benefits & Professional Growth

MLC offers a competitive and thoughtfully designed rewards package that supports both financial security and long-term career development:

• 401(k) Plan The company matches a portion of employee 401(k) contributions and also provides an additional employer-funded contribution, regardless of employee participation, to help support long‑term retirement savings.

• Tuition Reimbursement Reimbursement for 100% of approved eligible education expenses after six months of employment to support continued learning and career advancement.

• Vacation and Holiday Pay Employees receive paid vacation as well as recognized company-paid holidays to support work-life balance throughout the year.

• Health Savings & Wellness Benefits Employer HSA contributions for medical plan participants, a comprehensive wellness program, and $100 annually toward a gym membership.

• Disability & Employee Assistance Coverage Company‑provided disability insurance and access to an Employee Assistance Program (EAP) offering mental health, financial, and personal support resources.

• Incentive Program Eligibility for performance-based incentive opportunities aligned with individual and organizational success.

• Career Growth & Development Opportunities Access to professional development resources and opportunities within a growing, global organization.

• Coming soon…Student Loan Reimbursement assistance

About the Job

The Production Supervisor leads front-line plant operations by supervising production teams, ensuring safety and compliance, and driving efficiency, quality, and continuous improvement.

• Supervise, assign, and verify daily work of hourly production employees

• Promote a strong safety culture and ensure compliance with all policies and regulations

• Monitor performance (attendance, safety, efficiency) and provide coaching, mentoring, and discipline as needed

• Drive productivity, quality, and waste reduction across plant processes

• Support environmental compliance and maintain production reliability

• Coordinate daily production, maintenance scheduling, and inventory management

• Foster positive employee relations and build a high-performing team environment

• Track and report on production, safety, and operational performance metrics

Required Qualifications

• High school diploma

• 3–5 years of supervisory experience in a manufacturing environment

• Proven ability to lead teams and achieve results through others

• Strong planning, organization, and problem-solving skills

• Ability to manage multiple priorities in a fast-paced setting

Preferred Qualifications

• Some college coursework

• Experience working in a unionized environment

• Strong interpersonal and communication skills

• Knowledge of safety, environmental, and production compliance standards

• Ability to learn plant systems and processes and use tracking/reporting tools

• Willingness to obtain and maintain required certifications (e.g., supervisory certificate, First Aid/CPR, Method 22)

The Fine Print

Benefits and perquisites may vary based on the nature and location of each job.

Click here for MLC EEO information (

About MLC

MLC, headquartered in St. Louis, Mo., is a leading global supplier of high-calcium lime products and technical solutions. These offerings bring essential performance and value to a broad range of market applications, including metals, construction, chemical synthesis, water and emissions treatment, glass, textiles, plastics, rubber, agriculture, foods and beverages. With over a century in business, MLC has built a reputation on the quality of its products and services, as well as an unwavering commitment to safety, sustainability and service. The company’s expanding global footprint includes a diversified, reliable network of production and distribution facilities in the U.S., as well as in the UK through our Singleton Birch business. For more information, visit .

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