How much does a Software Systems Developer IV make in Illinois?
As of July 01, 2026, the average salary for a Software Systems Developer IV in Illinois is $145,932 per year, which breaks down to an hourly rate of $70.
However, a Software Systems Developer IV's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $161,550
- Majority Range (25th-75th percentile): $139,221 to $154,107
- Entry-Level (10th percentile): $133,111