As of January 01, 2026, the average annual salary for sr developer in Illinois is $142,061, equivalent to $68 per hour, $2,732 weekly, or $11,838 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for sr developer in cities like Santa Clara, San Jose, and Fremont.
Annually Salaries for sr developer in Illinois vary widely, spanning from $123,351 to $160,756. Most professionals fall between the 25th percentile ($132,267) and 75th percentile ($151,847), while top earners (90th percentile) make $160,756 per year. This $19,580 pay gap underscores opportunities for salary growth through certifications, specialized skills like Analysis or Open Source, or targeting high-paying regions like District of Columbia or California.
Location and experience significantly influence earnings. For example, Illinois sr developer often earn 1.9% higher than national averages due to demand from Fortune 41 companies. However, Illinois currently ranks 14 nationwide for sr developer job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.
