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Family & Level

Job Title

Principal Mechanical Engineer

The median salary range for Principal Mechanical Engineer disclosed in public job postings is $142k - $235k as of Sep 2026, based on 39 job postings from 13 companies.

Salary Range

Low

$142,000

25%

Mid

$188,300

25%

High

$234,600

Small Sample Size

11 Data Points

Data Points

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Microsoft

11 Job Posts

$140k - $275k

$139,900 - $274,800

Muon Space

1 Job Post

$222k - $250k

$222,000 - $250,000

Outpost

1 Job Post

$225k - $245k

$225,000 - $245,000

SpaceX

1 Job Post

$175k - $240k

$175,000 - $240,000

Oracle

8 Job Posts

$115k - $235k

$114,600 - $234,600

Commonwealth Fusion

1 Job Post

$150k - $225k

$150,000 - $225,000

CesiumAstro

2 Job Posts

$142k - $189k

$142,000 - $189,000

Plug Power

1 Job Post

$107k - $170k

$106,500 - $170,400

Berkshire Grey

4 Job Posts

$130k - $170k

$130,000 - $170,000

1 - 9 of 13