Explore the Potential of Being Part of Something Clearly Essential Compass Minerals (

NYSE:

CMP) is a leading global provider of essential minerals focused on safely delivering where and when it matters to help solve nature's challenges for customers and communities. The company's salt products help keep roadways safe during winter weather and are used in numerous other consumer, industrial, chemical and agricultural applications. Its plant nutrition products help improve the quality and yield of crops while supporting sustainable agriculture. Compass Minerals operates 11 production and packaging facilities with more than 1,800 employees throughout the U.S., Canada and the U.K. Visit compassminerals.com for more information about the company and its products. We are seeking a Senior Mine Engineer to join our team. This role leads underground mine planning and technical services activities, ensuring safe, efficient, and sustainable operations. The Senior Mine Engineer is responsible for developing short-term, mid-range, and life-of-mine plans while providing technical leadership in mine design, ventilation, infrastructure, and operational improvement initiatives. As a key technical leader, this position partners closely with operations, maintenance, geology, and safety teams to align mine planning activities with business objectives while mentoring and developing technical team members. Why Join Compass Minerals? We offer a competitive compensation and benefits package, including: Relocation assistance provided for qualified candidates Benefits starting Day 1 11 paid holidays + 1 floating holiday Competitive PTO package 1 week sick time (subject to applicable state and local laws) 401(k) with company match Employee Education Reimbursement Program Employee Assistance Program (EAP) Bonus opportunities for eligible positions Key Responsibilities Mine Planning & Optimization Lead development and optimization of short-term, mid-range, and life-of-mine plans. Develop mine designs, sequencing strategies, pillar layouts, and infrastructure plans. Evaluate geological, geotechnical, ventilation, equipment, and operational constraints to maximize resource recovery. Monitor plan performance through reporting, reconciliation, and variance analysis. Prepare and present mine schedules, technical reports, and planning recommendations. Operations Partnership & Continuous Improvement Partner with operations, maintenance, geology, safety, and leadership teams to align planning with operational objectives. Serve as the primary liaison between Technical Services and Operations. Lead planning reviews, risk assessments, and continuous improvement initiatives. Support budgeting, forecasting, and capital planning activities. Technical Services & Operational Support Provide technical leadership, coaching, and development for engineers, surveyors, technicians, interns, and contractors. Oversee ventilation systems, mine infrastructure, resource and reserve evaluation, and geotechnical monitoring activities. Promote engineering standards, best practices, and a culture of continuous improvement. Safety & Compliance Ensure compliance with safety regulations, environmental requirements, and company engineering standards. Support hazard identification, risk management, and operational excellence initiatives. Qualifications Bachelor's degree in Mining Engineering, Geotechnical Engineering, Geology, or a related field. 5+ years of progressive underground mining experience. Experience with short-term, mid-range, and life-of-mine planning. Experience providing technical leadership, mentoring, or project coordination. Advanced knowledge of underground mine planning, design, ventilation, surveying, and scheduling. Proficiency with mine planning, engineering, and data visualization software. Strong analytical, project management, problem-solving, and communication skills. Preferred Qualifications Experience working in a unionized environment. Experience supporting resource and reserve evaluation activities. Background in ventilation, ground control, and underground infrastructure planning. Experience with budgeting, forecasting, and capital planning.

Physical Requirements:

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Ability to lift and/or move up to 10 pounds routinely and up to 50 pounds occasionally. Vision abilities include close vision, depth perception and the ability to adjust focus. Ability to stoop, kneel, crouch or crawl in confined or restricted spaces. Compass Minerals is an equal opportunity and affirmative action employer. We are firmly committed to making all employment-related decisions without regard to race, ancestry, ethnicity, color, religious creed or belief, national origin, sex (including sexual orientation, gender identity, and pregnancy and breastfeeding), age, military or veteran status, status as a qualified individual with a disability, genetic information, and any other characteristic protected by law. Learn more about equal employment opportunity laws at dol.gov . August 2026