How much does a Principal Application Engineer make in Illinois?
As of July 01, 2026, the average salary for a Principal Application Engineer in Illinois is $118,861 per year, which breaks down to an hourly rate of $57.
However, a Principal Application Engineer's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $132,235
- Majority Range (25th-75th percentile): $111,952 to $125,861
- Entry-Level (10th percentile): $105,662