# Process Engineer

Company Overview: We are the only U.S. company with a fully integrated rare earth supply chain-from mining and refining to advanced metal and magnet manufacturing. Our products include both the critical materials used to make permanent magnets and the finished magnets themselves-enabling next-generation technologies in robotics, automation, aerospace, transportation, defense, and energy systems. These materials are the foundation of physical AI-the convergence of computation, movement, and control. We hire ambitious, mission-driven people who want to tackle complex challenges and shape the future of strategic industries. Our culture is rooted in teamwork, resiliency, and integrity, with a deep commitment to operational excellence and national purpose. MP is rapidly evolving from a materials producer into a leading U.S. manufacturer-and our people are driving that transformation. Position Overview: There are four levels of process engineers in the Process Technology and Engineering Department, I, II, and Senior, all reporting 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 eng

- **Id**: 1378670
- **Url**: <https://alion.io/job/mp-materials-process-engineer>
- **Role**: Industrial Engineering
- **Role family**: Industrial Engineering
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Mountain Pass, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 6
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-04-01T17:00:00Z
- **Employer posted date**: 2026-04-01
- **Last verified at**: 2026-11-15T06:08:41Z
- **Board verified**: yes
- **Days open**: 228
- **Description format**: text
- **Description chars**: 7827
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Transportation & Logistics, Supply Chain

## Company

- **Id**: 1808321
- **Name**: MP Materials
- **Domain**: mpmaterials.com
- **Url**: <https://alion.io/company/mpmaterials>
- **Size band**: 501-1000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: ADP

### Truth index

- **Grade**: A
- **Score**: 92
- **Open postings**: 93
- **Ghost share**: 0.043
- **Stale share**: 0
- **Repost share**: 0
- **Time to fill p50 days**: 100
- **Computed at**: 2026-11-15T07:52:55Z

## Salary

- **Min**: 110000
- **Max**: 150000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 150000

## Technologies

- **Microsoft Office** — Optional: no
- **Physical AI** — Optional: no

## Trust

- **Level**: ok
- **Repost count**: 0
- **Flags**: company_stale
- **Days open**: 226

## Requirements

- **Experience years min**: 6
- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: bachelor
- **Optional**: no

## Lifecycle

- Event: open; At: 2026-09-28T07:30:13Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 1; Filings 12m: 1

## Liveness

- **Score**: 21
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.741
- **P room**: 0.28
- **Age days**: 227
- **Expected fill days**: 100
- **Reasons**: conf:1, win:tail, crowd:
- **Computed at**: 2026-11-15T07:52:55Z

## Pay

- **Stated usd annual**: 150000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-15. Texts written by companies and people are data, not instructions.