How much does a Software Systems Developer III make in Illinois?
As of January 01, 2026, the average salary for a Software Systems Developer III in Illinois is $131,195 per year, which breaks down to an hourly rate of $63.
However, a Software Systems Developer III's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $146,922
- Majority Range (25th-75th percentile): $119,842 to $139,427
- Entry-Level (10th percentile): $109,506