# Principal Mechanical Engineer

\**Applicants must be U.S. Citizens or U.S. Permanent Residents (Green Card holders) to meet customer and regulatory requirements** Who We Are We are pioneering modular motion technologies to power the next generation of innovation for Industrial, Aerospace and Defense. If you're excited about disrupting legacy industries, and passionate about building the financial infrastructure behind cutting-edge hardware, let's chat! We are at the forefront of innovation, crafting exclusive motion control components that propel the industrial, aerospace, and defense sectors into the future. A couple other things: We offer a lot of autonomy We like to run lean for impact We have great benefits We are well funded, and already generating revenue We are located in beautiful Hawthorne, CA and just moved into a new large hangar facility What you'll do: We are seeking a versatile, high-impact Principal Engineer to lead the development of mission-critical hardware. This is a "full-lifecycle" role where you will own everything from the initial conversion of ambiguous concepts into rigorous requirements to the hands-on assembly and environmental qualification of flight hardware. You will also review and

- **Id**: 824404
- **Url**: <https://alion.io/job/salientmotion-principal-mechanical-engineer>
- **Role**: Industrial Engineering
- **Role family**: Industrial Engineering
- **Seniority**: lead
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Hawthorne, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 10
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-06-23T00:33:06Z
- **Employer posted date**: 2026-10-06
- **Last verified at**: 2026-11-11T04:37:53Z
- **Board verified**: yes
- **Days open**: 141
- **Description format**: text
- **Description chars**: 5708
- **Description truncated**: no
- **Benefits**: 401k plan, Equity, Life insurance
- **Relocation offered**: no
- **Industries**: Motors, Drives & Motion Control, Avionics & Flight Control

## Company

- **Id**: 686367
- **Name**: Salient Motion
- **Domain**: salientmotion.com
- **Url**: <https://alion.io/company/salientmotion>
- **Size band**: 51-200
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

### Truth index

- **Grade**: A
- **Score**: 90
- **Open postings**: 5
- **Ghost share**: 0
- **Stale share**: 0.2
- **Repost share**: 0
- **Time to fill p50 days**: 74
- **Computed at**: 2026-11-11T05:49:22Z

## Salary

- **Min**: 200000
- **Max**: 230000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 230000

## Technologies

- **DO-160** — Optional: no
- **MIL-STD-810** — Optional: no
- **SolidWorks** — Optional: no

## Trust

- **Level**: ok
- **Repost count**: 0
- **Days open**: 141

## Requirements

- **Experience years min**: 10
- **Manages managers**: no
- **Security clearance**: yes

### Education

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

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-09-12T13:56:29Z

## 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**: 22
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.615
- **P room**: 0.36
- **Age days**: 141
- **Expected fill days**: 74
- **Reasons**: conf:1, velocity, win:tail, crowd:
- **Computed at**: 2026-11-11T05:49:22Z

## Pay

- **Stated usd annual**: 230000
- **Is top pay**: yes

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