Principal Mechanical Engineer
QinetiQ
Franklin, MA · $130k–$155k a year · Posted October 19, 2026
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Pay compared with the market
This listing pays about $142,500 a year. Across 31 open principal mechanical engineer listings that state pay, the middle half runs $156,000 to $218,000 and the median is $174,500. That is 18% below the median, below the middle half of those listings.
Listed pay is what employers advertise, not what people are paid.
Principal Mechanical Engineer salaries by state · Check your own pay
About the job
...your success in both your professional and personal lives.Position OverviewQinetiQ US is seeking a highly motivated Principal Mechanical Engineer, who will be responsible for the design, development, analysis, and design maintenance of military and commercial hardware...