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Process Engineer

MP Mine Operations LLC
Mountain Pass, CA
  • Posted: over a month ago
  • Full-Time
Job Description
Job Title:

Process Engineer (I, II, or Sr)


Mountain Pass, CA


Process Technology & Engineering

Position Type:

Full Time




Regular FT



Reports To:

Lead Process Engineer

Position Overview:

MP Materials (NYSE: MP) is on a mission to restore the full rare earth supply chain to the United States of America. From electric cars to wind turbines and drones, rare earths are essential to the low-carbon, electrified technologies that power modern life. We hire ambitious, mission-driven people motivated to solve problems and affect change. Our values are grounded in teamwork, resiliency, and integrity, with an enduring commitment to our employees, community, and the environment. In the coming years, MP Materials will grow from a core materials and chemical processing company into a large industrial manufacturer. Our employees will lead this exciting transformation and grow professionally with us.

Position Description:

There are four levels of process engineers in the Process Technology and Engineering Department. Process Engineer I, II, and Senior report to the area Lead Process Engineer. MP Materials is currently looking for levels I, II, and Senior Process Engineers. They will collaborate with other plant engineers, supervisors, operators, departments, and management in the design, implementation, startup, and optimization of various new and existing unit operations, monitor daily process and equipment control parameters and adjust as necessary to ensure production quality, efficiency, and uninterrupted operation. Process engineers also investigates process upsets, develops ideas & project scopes, and makes recommendations to improve process safety, quality, efficiency, and profitability.

Essential Duties:

  • Creates and reviews Standard Operating Procedures (SOP) and process log sheets for new and existing production processes and operations; works with area trainers to effectively communicate materials to the operations group
  • Creates and maintains PFD's, P&ID's, mechanical and layout drawings, process control procedures, and design basis documentation
  • Provides technical training to operations personnel
  • Promotes process safety and risk management
  • Tracks and presents process key performance indicators (KPIs), updates operating strategy and procedures based on KPIs for continual process improvement
  • Uses statistical process control programs and techniques to analyze process KPIs
  • Identifies and creates initial scope for small capital projects for process improvement; participates in capital project teams
  • Develops and communicates cost, benefit, and risk information on new process changes
  • Participates in the Management of Change process, creating and completing MOC projects
  • Participates in health & safety, environmental, product quality, and ISO 9001
  • Collaborates with the project management team, purchasing department, vendors, maintenance, contractors, operators, and other team members to complete projects and maintain current operations

Basic Qualifications:

  • Bachelor’s Degree in Engineering, or Chemical Engineering
  • Process Engineer I: 0-3 years of work experience in a chemical plant, mining, petroleum, water treatment, combined heat and power, or a similar heavy industrial setting
  • Process Engineer II: 3-6 years of work experience in a chemical plant, mining, petroleum, water treatment, combined heat and power, or a similar heavy industrial setting
  • Senior Process Engineer: 6+ years of work experience in a chemical plant, mining, petroleum, water treatment, combined heat and power, or a similar heavy industrial setting

Desired Qualities:

  • Prior experience with thickeners/clarifiers, slurry systems, dry solids handling, precipitation reactors, filter press, belt filter, and other various filtration technology, centrifugal and positive displacement pumps, heat exchangers, cooling towers, instrumentation and process control automation, steam & power generation, reverse osmosis, water treatment, evaporators, crystallizers, centrifuges
  • Participate in cross-functional teams
  • Excellent communication skills, verbal and written
  • Ability to complete a task with minimal supervision
  • Attention to detail and ability to learn new duties
  • Ability to work in teams with strong collaboration skills
  • Ability to work with people at all levels within the organization
  • Ability to create, read and modify PFD’s and P&ID’s
  • Proficiency in Microsoft Office (Word, Excel, PowerPoint), statistical software, AutoCAD, and PI ProcessBook
  • Ability to travel as needed
  • Ability to write technical SOP’s
  • Valid Driver’s License to drive company vehicles on and off property

Other Functions:

  • Uses daily analytical lab reports for process monitoring and optimization
  • Track reagent and raw material usage, recording verified daily consumption in SAP
  • Maintains daily, weekly, monthly, and annual material and energy balance reports for various unit operations
  • May perform or direct laboratory test work as needed to investigate, troubleshoot, and improve plant operations
  • Assists with process planning and development to ensure quality products and safe conditions
  • AutoCAD, PI ProcessBook and DataLink experience desired, but not required
  • Other duties as assigned by management

MP Materials is Proud to be an Equal Opportunity / Affirmative Action Employer - EEO is The Law
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by law. Underrepresented groups/Women/Disabled/Veterans are encouraged to apply. Candidates whose disabilities make them unable to meet the position’s requirements will still be considered qualified if they can perform the essential functions of the job with reasonable accommodation.

Your Right To Work – In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment verification document form upon hire.

For Assistance with Application - Alternative methods of applying for employment are available to individuals unable to submit an application through this site because of a disability. Contact Human Resources Department at 702-625-5679; 6720 Via Austi Parkway, Suite 450, Las Vegas, NV 89119 to discuss reasonable accommodations.

Safety Provision

Employees are responsible for following all company, industry and regulatory procedures and laws to ensure a safe work environment for themselves and the company. Employee must have a willingness to promote safety among the workforce, participate in Process Hazard Analysis procedures and Pre-Startup Safety Reviews.

(PPE) Personal Protective Equipment is required when performing work in a mine, manufacturing, outdoor, or plant environment. Required PPE may include, but is not limited to, hard hat, hearing protection, safety glasses, safety footwear, respirator, rubber steel-toe boots, protective clothing, gloves, and any other protective equipment as required.

Working Conditions

Our facility sits at an elevation of 4,700 feet. Employees may subject to extreme weather conditions when working in an outdoor setting (heat and cold, wind). Work is at an open pit mine or manufacturing/chemical plant setting, which may include exposure to moving mechanical parts, toxic chemicals, risk of electrical shock, explosives, fumes, or airborne particles.

Physical Demands

Manual dexterity; sense of touch; sense of smell; speaking clearly; hearing-speech range; hearing – all ranges; seeing, reading and comprehensions; seeing – distant/near; depth perception; color vision. While performing the job responsibilities, the employee is required to talk and hear. The employee is often required to stand and use their hands and fingers, to handle or feel and to manipulate laboratory equipment. The employee is occasionally required to walk, reach with arms and hands, climb or balance, and to stoop, kneel, crouch or crawl. Vision abilities required by this job include close vision. Employee must pass a full-face respiratory fit test. Employee must be able to lift 50 lbs. Must be able to work in PPE level C. These requirements are representative, but not all-inclusive, of the knowledge, skill, and ability required of the employee.

MP Mine Operations LLC


Mountain Pass, CA
92366 USA



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