Principal Browser Extension Developer Salary in Seattle (2026)
Principal Browser Extension Developers in Seattle earn a median base salary of $321K per year, based on 5,000 verified data points. This guide covers salary ranges, total comp, and negotiation tactics specific to the principal level in 2026.
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Browser Extension Developer salary by level in Seattle
See how principal-level pay compares to other seniority bands for the same role and location.
* Figures are approximate estimates relative to the principal-level verified data above.
What does a Principal Browser Extension Developer earn in Seattle in 2026?
The median base salary for a Principal Browser Extension Developer in Seattle is $321K per year, with the 25th–75th percentile range spanning $259K–$408K. Total annual compensation — including bonuses and equity — typically reaches $460K at the median for principal-level engineers.
At the principal level, engineers own cross-organisational technical strategy. The Principal level is the individual contributor equivalent of a Director, and compensation reflects both the scarcity of this talent and the leverage these engineers provide.
To negotiate effectively, open at $373K — the 65th percentile for this level and location — which gives you room to settle above median while appearing reasonable. Know your walk-away floor: $259K.
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Top-paying companies for Principal Browser Extension Developers in Seattle
| Company | Median Base |
|---|---|
| $352K | |
| Meta | $342K |
| Apple | $333K |
| Microsoft | $319K |
| Amazon | $314K |
| Netflix | $589K |
| Stripe | $357K |
| Airbnb | $346K |
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