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$80,000. Average Steam Operating Engineer salaries for job postings in Los Angeles, CA are 7% higher than average Steam Operating Engineer salaries for job postings nationwide.
The average principal engineer salary is $96893 based on 571 salary records. The typical salary range for those positions with principal engineer in their job title is between $76346 and $117439. The lowest salary in the principal engineer data was $55000. Here are average principal engineer salaries by state: