Night Shift Plant Operations Tech

Job Title:  Hydrate Operator

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

As a Hydration Plant Operator, you will play a key role in producing high‑quality lime products by operating and maintaining computer‑controlled hydration systems, ensuring safe operations, meeting quality standards, and supporting efficient plant performance.

• Operate and monitor computer‑controlled hydration systems and associated equipment
• Perform quality tests and process checks to ensure products meet specifications
• Load finished product for customer shipment by rail or truck; generate BOLs and shipping records
• Maintain raw material and supply inventories, including purchase order requests
• Perform preventive maintenance, troubleshooting, and minor repairs on plant equipment
• Monitor dust control systems and support environmental compliance requirements
• Maintain accurate production, shipping, and operator records in computerized systems
• Uphold safety, housekeeping, and operational excellence standards across the facility

Required Qualifications

• High School Diploma or equivalent
• Minimum of three (3) years experience in an industrial or manufacturing environment
• Ability to work nightshift and respond to call‑ins as needed

Preferred Qualifications

• Knowledge of electrical and mechanical maintenance
• Experience working in a chemical or chemical processing plant
• Experience with computer‑controlled or automated process systems
• Proficiency with computers, keyboarding, and Microsoft Windows
• Strong written and verbal communication skills
• Forklift, telehandler, or mobile equipment operation experience

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 https://www.mlc.com/.