Assistant Plant Manager

Heidelberg Materials · New Braunfels · $107,480–$143,307 (stated in the posting)

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About Us

Heidelberg Materials is one of the world's largest suppliers of building materials. Heidelberg Materials North America operates over 450 locations across the U.S. and Canada with approximately 9,000 employees.

Heidelberg Materials is seeking an experienced and results-oriented Assistant Plant Manager to support the safe, efficient, and profitable operation of a high-production aggregate quarry with an annual production target of approximately 7 million tons. This leadership role partners closely with the Plant Manager to drive operational excellence, employee development, cost management, and continuous improvement while maintaining the highest standards of safety and environmental compliance.

What You'll Be Doing

• Lead daily quarry operations to achieve safety, production, quality, and cost-performance objectives.
• Coach and develop supervisors and frontline employees to build a high-performing and engaged workforce.
• Monitor key operational metrics and implement process improvements that enhance plant efficiency and productivity.
• Ensure compliance with all safety, environmental, regulatory, and company standards while promoting a strong safety culture.
• Collaborate with maintenance, sales, logistics, and operational teams to optimize production planning and customer service.

What Are We Looking For

• Demonstrated ability to lead large-scale aggregate, mining, quarry, heavy industrial, or manufacturing operations with a strong focus on safety and operational excellence.
• Proven capability to develop teams, drive accountability, and foster a culture of engagement and continuous improvement.
• Strong business acumen with the ability to manage production performance, budgets, operational costs, and productivity initiatives.
• Effective problem-solving, communication, and decision-making skills in a fast-paced operational environment.

Critical Skills

• Leadership and team development within large-scale aggregate, mining, or heavy industrial operations.
• Operational planning, resource allocation, and production optimization.
• Financial management including budgeting, forecasting, cost control, and performance analysis.
• Strong knowledge of quarry operations including drilling, blasting, crushing, conveying, processing, and loadout activities.
• Effective communication, employee engagement, regulatory compliance, and continuous improvement capabilities.

Critical Experience

• 8+ years of progressive leadership experience in aggregates, mining, quarrying, heavy industrial manufacturing, construction materials, or a related industry.
• Demonstrated success managing production, maintenance, safety, quality, and cost performance in a high-volume operation.
• Experience leading and developing supervisors and frontline employees in a dynamic operational environment.
• Proven record of implementing initiatives that improve safety, productivity, equipment reliability, and operational efficiency.
• Experience managing budgets, capital improvement projects, operational planning, and business performance metrics.

Education

• Bachelor's degree in Mining Engineering, Geological Engineering, Civil Engineering, Mechanical Engineering, Construction Management, Business Management, or a related field preferred.
• Equivalent combinations of education, industry training, certifications, and relevant leadership experience will be considered.
• MSHA certifications and aggregate industry training are preferred.

Physical Demands

• Ability to walk, stand, and navigate uneven quarry terrain for extended periods throughout the workday.
• Ability to climb stairs, ladders, catwalks, and elevated work platforms in support of operational activities.
• Ability to work outdoors in varying weather conditions and in environments with noise, dust, and vibration.
• Ability to wear and utilize required personal protective equipment (PPE), including hard hat, safety glasses, hearing protection, steel-toed boots, and other protective equipment as required.
• Ability to occasionally bend, stoop, kneel, reach, push, pull, and lift up to 50 pounds.

Work Environment

• Primarily located in an active quarry and plant environment with exposure to moving equipment, noise, dust, vibration, and varying weather conditions.
• Frequent interaction with production, maintenance, quality control, and business teams.
• Regular field presence required to support operational and safety initiatives.
• Ability to traverse uneven terrain, climb stairs and ladders, and work in outdoor conditions throughout the year.
• Occasional travel may be required for training, meetings, and company initiatives.

What We Offer

• $120,000-$125,000 base salary and participation in our annual incentive plan.
• 401(k) retirement savings plan with an automatic company contribution as well as matching contributions.
• Highly competitive benefits programs, including:
  • Medical, Dental, and Vision along with Prescription Drug Benefits
  • Health Saving Savings Account (HSA), Health Reimbursement Account (HRA) and Flexible Spending Account (FSA)
  • AD&D, Short- and Long-Term Disability Coverage as well as Basic Life Insurance
  • Paid Bonding Leave, 15 days of Paid Vacation, 40 hours of Paid Sick Leave and 10 Paid Holidays

Equal Opportunity Employer - Minority / Female / Veteran / Disabled.

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