How much does a Principal Application Engineer make in Illinois?
As of April 01, 2026, the average salary for a Principal Application Engineer in Illinois is $118,860 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): $132,220
- Majority Range (25th-75th percentile): $111,931 to $125,853
- Entry-Level (10th percentile): $105,624