Engineer, Mechanical

MP Materials Corp.•Mountain Pass, CA

18d•$120,000 - $150,000

About The Position

MP Materials is seeking a highly skilled and experienced Senior Mechanical Engineer to support the design, operation, maintenance, and continuous improvement of mechanical systems and equipment across its industrial facilities. The role provides technical expertise, troubleshoots complex equipment issues, and drives initiatives to improve safety, reliability, efficiency, and plant performance. The engineer will collaborate with operations, maintenance, engineering, and contractor teams to develop practical solutions that enhance equipment performance and support business objectives.

Requirements

Bachelor's degree in engineering, preferably mechanical or industrial engineering.
Strong knowledge of mechanical equipment design, maintenance, and operation, including rotating equipment, piping systems, hydraulic systems, conveyors, pumps, tanks, and structural systems.
Proficiency in engineering design principles, engineering calculations, and interpretation of mechanical drawings and specifications.
Knowledge of applicable engineering codes and standards, including ASME, ANSI, API, AISC, and other relevant industry standards.
Knowledge of industry standards and regulations related to asset reliability, safety, and compliance.
Excellent communication and interpersonal skills, including the ability to collaborate effectively with cross-functional teams and present findings to stakeholders.
Ability to pass a full-face respiratory fit test.
Ability to lift 50 lbs and work in PPE Level C.
Ability to perform the described physical demands and work in the described facility conditions.

Responsibilities

Provide mechanical engineering support for plant operations, maintenance, and capital projects to ensure safe, reliable, and efficient operation of mechanical equipment and systems.
Lead the design, specification, evaluation, and implementation of mechanical equipment, including pumps, piping systems, conveyors, crushers, rotating equipment, tanks, pressure systems, structural components, and process equipment.
Develop engineering scopes of work, technical specifications, equipment standards, and bid packages for maintenance and capital improvement projects.
Troubleshoot and resolve complex mechanical equipment failures and operational issues through engineering analysis, field investigations, and root cause analysis.
Collaborate with operations and maintenance teams to identify opportunities for equipment improvements, process optimization, energy reduction, and cost savings.
Review and approve engineering drawings, calculations, equipment designs, vendor submittals, and construction packages to ensure compliance with company standards and applicable codes.
Provide technical leadership for equipment upgrades, plant expansions, modernization efforts, and continuous improvement initiatives.
Support preventative maintenance and equipment inspection programs with engineering recommendations for equipment life extension, repair strategies, and replacement planning.
Conduct field assessments and engineering studies related to equipment performance, system capacity, vibration, wear, corrosion, structural integrity, and operational efficiency.
Ensure compliance with applicable safety regulations, environmental requirements, engineering standards, and company policies.
Participate in risk assessments, management of change processes, incident investigations, and hazard reviews to improve operational safety and reduce risk.
Develop technical reports, engineering calculations, project justifications, and presentations for plant leadership and stakeholders.
Follow company, industry, and regulatory procedures and laws to ensure a safe work environment; promote workforce safety and participate in Process Hazard Analysis procedures and Pre-Startup Safety Reviews.