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As of August 01, 2026, the average salary for a Computer Science Engineer in Illinois is $104,613 per year, which breaks down to an hourly rate of $50.
However, a Computer Science Engineer's salary can vary significantly. Here’s a look at the typical salary range:
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Computer Science Engineer Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $113,687 | $9,474 | $2,186 | $55 |
| Average | $104,613 | $8,718 | $2,012 | $50 |
| 25th Percentile | $95,001 | $7,917 | $1,827 | $46 |
Chicago Public Schools - Chicago, IL
Rochelle Zell Jewish High School - Deerfield, IL
Direct Counsel - Chicago, IL
University of York - Computer Science - Lombard, IL
A Computer Science Engineer's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location and company size can directly affect your earning potential.
Experience is a primary driver of a Computer Science Engineer's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here’s how the average salary grows at different career stages:
| Levels | Salary |
|---|---|
| Computer ... Level Computer Science Engineer | $106,616 |
| Cyber Sec... Level Computer Science Engineer | $132,105 |
| Cyber Sec... Level Computer Science Engineer | $152,545 |
| Cyber Sec... Level Computer Science Engineer | $179,803 |
| Cyber Sec... Level Computer Science Engineer | $210,161 |
What Am I Worth?
Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Computer Science Engineers. For example, consider the average annual salaries in these key locations:
Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:
For Computer Science Engineer roles, the industry you choose can affect earning potential by as much as 40% (the gap between the highest and lowest paying industries). Data shows that the Internet and Biotechnology sectors offer the strongest compensation, at 22% above the average. In contrast, Computer Science Engineer positions in Retail & Wholesale or Hospitality & Leisure typically offer lower base pay, as these industries often view Computer Science Engineer as a support function rather than a direct revenue driver.
| Industry Sector | Average Annual Salary | Average Hourly Rate | Pay vs.Avg |
|---|---|---|---|
| Internet | $127,628 | $61.0 | 22% |
| Biotechnology | $125,535 | $60.0 | 20% |
| Aerospace & Defense | $117,166 | $56.0 | 12% |
| Insurance | $115,074 | $55.0 | 10% |
| Energy & Utilities | $112,982 | $54.0 | 8% |
Understanding how a Computer Science Engineer's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.
| Annual Salary | Monthly Pay | Weekly Pay | Hourly Wage | |
|---|---|---|---|---|
| 75th Percentile | $113,687 | $9,474 | $2,186 | $55 |
| Average | $104,613 | $8,718 | $2,012 | $50 |
| 25th Percentile | $95,001 | $7,917 | $1,827 | $46 |
Ready to take the next step in your career? Browse thousands of current Computer Science Engineer job openings on our job board. Use the search bar below to find your perfect match.
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