The salary trajectory of a Project Engineer ranges between locations and employers. The salary starts at £27,965 per year (estimate) and goes up to £78,235 per year (estimate) for the highest level of seniority.
The estimated average salary for a Project Engineer at Laing O'Rourke is £107,001 per year or £51 per hour, but some professionals have reported earning up to roughly £169,803 per year (90th percentile). The typical pay range is between £84,435 (25th percentile) and £136,821 (75th percentile) annually. This is based on 48 salaries submitted by Laing O'Rourke Project Engineer professionals on Glassdoor, as of Jun 2026.