3M employees working as Senior Project Engineer in US have attributed a compensation and benefits rating of 4.8 out of 5 stars, based on 7 ratings. This is in line with the average of Senior Project Engineer professionals at 3M worldwide.
The salary trajectory of a Senior Project Engineer ranges between locations and employers. The salary starts at $92,494 per year (estimate) and goes up to $224,659 per year (estimate) for the highest level of seniority.
The estimated average salary for a Senior Project Engineer at 3M is $152,985 per year or $74 per hour, but some professionals have reported earning up to roughly $228,013 per year (90th percentile). The typical pay range is between $124,992 (25th percentile) and $189,169 (75th percentile) annually. This is based on 20 salaries submitted by 3M Senior Project Engineer professionals on Glassdoor, as of Jul 2026.
Senior Project Engineer professionals typically earn between $60 and $91 per hour.
Senior Project Engineer professionals typically earn between $10,416 and $15,764 monthly.
