The salary trajectory of a a Principal Operations Engineer ranges between locations and employers. The salary starts at £0 per year (estimate) and goes up to £0 per year (estimate) for the highest level of seniority.
The estimated average salary for a Principal Operations Engineer at Lockheed Martin is £46,056 per year or £22 per hour, but some professionals have reported earning up to roughly £65,247 per year (90th percentile). The typical pay range is between £38,338 (25th percentile) and £55,327 (75th percentile) annually. This is based on 1 salaries submitted by Lockheed Martin Principal Operations Engineer professionals on Glassdoor, as of Jul 2026.