Recent salaries shared by Principal Software Engineer at Fastly
Job Title | Years of Experience
Total Pay
Base • Additional pay
Location
Date submitted
Job Title | Years of Experience
Location
Date submitted
Total Pay
Base • Additional pay
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Fastly pay FAQs
- The average salary for Principal Software Engineer is $286,011 per year (estimate) in US, which is 16% lower than the average Fastly salary of $341,429 per year (estimate) for this job.
- The salary trajectory of a Principal Software Engineer ranges between locations and employers. The salary starts at $153,612 per year (estimate) and goes up to $477,119 per year (estimate) for the highest level of seniority.
- The estimated average salary for a Principal Software Engineer at Fastly is $286,011 per year or $138 per hour, but some professionals have reported earning up to roughly $454,095 per year (90th percentile). The typical pay range is between $227,482 (25th percentile) and $366,786 (75th percentile) annually. This is based on 14 salaries submitted by Fastly Principal Software Engineer professionals on Glassdoor, as of Jul 2026.
- Principal Software Engineer professionals typically earn between $109 and $176 per hour.
- Principal Software Engineer professionals typically earn between $18,957 and $30,565 monthly.
