The salary trajectory of a an Integration Engineer ranges between locations and employers. The salary starts at £45,233 per year (estimate) and goes up to £50,895 per year (estimate) for the highest level of seniority.
The estimated average salary for a Integration Engineer at Lockheed Martin is £48,511 per year or £23 per hour, but some professionals have reported earning up to roughly £74,998 per year (90th percentile). The typical pay range is between £39,203 (25th percentile) and £60,639 (75th percentile) annually. This is based on 12 salaries submitted by Lockheed Martin Integration Engineer professionals on Glassdoor, as of Jun 2026.