How much does a Test Development Engineer make in Illinois?
As of July 01, 2026, the average salary for a Test Development Engineer in Illinois is $112,486 per year, which breaks down to an hourly rate of $54.
However, a Test Development Engineer's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $129,431
- Majority Range (25th-75th percentile): $104,646 to $121,356
- Entry-Level (10th percentile): $97,509