Senior Machine Operator Jobs in Merced, CA (NOW HIRING)

JOB SUMMARY

The Senior Safety Representative at Martin Marietta is a high-impact leadership role dedicated to advancing our world-class safety culture and achieving our collective "Journey to ZERO" incidents. Serving as the ultimate champion of Martin Marietta's foundational "Guardian Angel" safety culture, this role bridges senior safety strategy with daily field operations.

As a senior-level professional, you will be responsible for providing technical safety expertise, mentoring site personnel, and ensuring absolute operational compliance with MSHA, OSHA, and company standards across multiple facilities, plants, or quarries. This position balances highly visible proactive field leadership with rigorous data-driven risk mitigation, ensuring that every employee, contractor, and visitor returns home safely at the end of every shift.

KEY DUTIES AND RESPONSIBILITIES

• Serve as the visible, driving force behind Martin Marietta's "Guardian Angel" philosophy, empowering every team member to take personal ownership of their safety and the safety of those around them.
• Conduct daily and weekly safety walk-throughs, site-wide audits, and housekeeping evaluations across plant facilities, shops, and quarries to eliminate physical, environmental, and behavioral hazards.
• Partner with operational leadership to coach and onboard new hires, contractors, and visitors via robust, site-specific safety orientations.
• Ensure full, uncompromised compliance with all applicable Mine Safety and Health Administration (MSHA) and Occupational Safety and Health Administration (OSHA) regulations.
• Regularly review specialized site zones-such as truck washout areas, material tracking pads, stockpiles, and high-traffic zones-to verify adequate drainage, secure walking surfaces, proper structural integrity, and effective lighting.
• Oversee the rigorous testing, routine inventory, and proper maintenance of all facility safety devices, including personal protective equipment (PPE), fire suppression systems, spill kits, and specialized first-aid supplies.
• Continually evaluate site-specific trends and evolving operational footprints to author, update, and deploy standardized Safe Operating Procedures.
• Lead immediate response and thorough investigations into all site-level incidents and near-misses, utilizing structured root-cause methodologies to determine preventative actions.
• Track the lifecycle of all corrective and preventive activities to complete closure, issuing formal maintenance work orders for structural or mechanical safety concerns.
• Author and prepare accurate, timely technical health and safety reports for use by operations, engineering, and the corporate ESH hierarchy.
• Maintain absolute emergency readiness, providing rapid first-aid direction and organizing specialized mine rescue or emergency management teams as needed.
• Manage the safety check-in and compliance validation processes for all external parties, ensuring a safe transition from the facility gates to loading zones.
• Act as an operational bridge between sales teams, central dispatch, and field crews to optimize traffic control, manage equipment congestion, and maintain a safe velocity of site operations during high-volume periods.
• Gather proactive feedback from contractors and customers regarding site logistics and safety flow, translating these insights into actionable operational improvements.

QUALIFICATIONS

Education

Bachelor's degree in Occupational Health & Safety, Environmental Safety, Industrial Hygiene, or relevant experience in lieu of a degree.

Work Experience

5+ years of Progressive Safety Management experience within Heavy Construction, Building Materials, Aggregates, or Mining environments.

Knowledge, Skills, and Abilities

Safety focused

MSHA/OSHA compliance and regulations

Effective communicator (written and spoken)

Formal presentations

Planning

Worth ethic

Collaboration

Peer mentoring

ADDITIONAL DETAILS

Physical Requirements

Must be able to lift and carry up to 50 lbs. for plant maintenance and equipment servicing.

Required to bend, stoop, climb, and reach. You must be able to maintain three points of contact when climbing on/off machinery or on ladders.

Strong hand-eye-foot coordination is essential for operating hand/foot controls. You must have good depth perception with or without seeing aid for distances up to 150 feet.

Travel

Expected travel 50%

Working Conditions

All duties require outside assignments and require periods of work in all weather conditions, cold, wet, dry and dusty. Must be able to work in areas where noise levels are up to 85 dbs.

The hiring range for this position is $92,000 -$130,000 exclusive of benefits or bonuses (discretionary and non-discretionary). The offered base compensation will be determined based on factors such as geographic location, business need, market conditions, proficiencies, skills, education, and experience. Additionally, at Martin Marietta we place a high value on internal pay equity and will consider the compensation for those in similarly situated roles and direct team members. The hiring range for this role represents the base compensation we expect to pay for the position at time of hire and does not represent the total possible base pay of the position. In addition, this role is eligible for our annual bonus program. Bonuses awarded under this program are determined based on the performance of the organization and the employee.

In addition to our base compensation, we also offer a competitive benefits package for full-time employees, including medical, dental and vision coverage; prescription drug coverage; health savings accounts; flexible spending accounts; and life, AD&D and disability insurance. We also encourage our employees to plan for the future by offering a 401(k) with a company match and an employer-funded defined benefit pension plan. Other benefits include paid time off, paid holidays, education/tuition assistance, an employee discount program, adoption assistance, wellness programs and more.