The salary trajectory of a Design Engineer ranges between locations and employers. The salary starts at $110,484 per year (estimate) and goes up to $245,403 per year (estimate) for the highest level of seniority.
The estimated average salary for a Design Engineer at Tetra Tech is $122,462 per year or $59 per hour, but some professionals have reported earning up to roughly $193,451 per year (90th percentile). The typical pay range is between $96,977 (25th percentile) and $156,268 (75th percentile) annually. This is based on 11 salaries submitted by Tetra Tech Design Engineer professionals on Glassdoor, as of Jul 2026.
Design Engineer professionals typically earn between $47 and $75 per hour.
Design Engineer professionals typically earn between $8,081 and $13,022 monthly.
