The estimated average salary for a Software Development Engineer In Test (SDET) at Global Relay is CA$147,852 per year or CA$71 per hour, but some professionals have reported earning up to roughly CA$211,269 per year (90th percentile). The typical pay range is between CA$124,056 (25th percentile) and CA$178,775 (75th percentile) annually. This is based on 54 salaries submitted by Global Relay Software Development Engineer In Test (SDET) professionals on Glassdoor, as of Jun 2026.