Assistant Systems Engineer Salary in Illinois

How much does an Assistant Systems Engineer make in Illinois? As of November 01, 2026, the average salary for an Assistant Systems Engineer in Illinois is $63,926 per year, which breaks down to an hourly rate of $31.

However, an Assistant Systems Engineer's salary can vary significantly. Here's a look at the typical salary range:

  • Top Earners (90th percentile): $78,424
  • Majority Range (25th-75th percentile): $56,879 to $71,515
  • Entry-Level (10th percentile): $50,463

Key Factors That Influence Assistant Systems Engineer Salaries

An Assistant Systems 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.

How Experience Level Affects Assistant Systems Engineer Salaries?

Experience is a primary driver of an Assistant Systems 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:

  • Entry-Level (less than 1 year): $59,891
  • Early Career (1-2 years): $60,114
  • Mid-Level (2-4 years): $62,872
  • Senior-Level (5-8 years): $65,823
  • Expert (over 8 years): $66,034
Job RoleYears of ExperienceAverage Salary
Entry Level Assistant Systems Engineer less than 1 year $59,891
Early Career Level Assistant Systems Engineer 1-2 years $60,114
Mid-Level Level Assistant Systems Engineer 2-4 years $62,872
Senior-Level Level Assistant Systems Engineer 5-8 years $65,823
Expert Level Assistant Systems Engineer over 8 years $66,034

Top Paying Cities for Assistant Systems Engineer

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:

  • Effingham: $58,927
  • Saint Peter: $58,846
  • Salem: $59,070

Assistant Systems Engineer Salary by Industry: Top Paying Sectors

For Assistant Systems Engineer roles, the industry you choose can affect earning potential by as much as 95% (the gap between the highest and lowest paying industries). Data shows that the Software & Networking and Energy & Utilities sectors offer the strongest compensation, at 40% above the average. In contrast, Assistant Systems Engineer positions in Telecom or Insurance typically offer lower base pay, as these industries often view Assistant Systems Engineer as a support function rather than a direct revenue driver.

The top paying industries for an Assistant Systems Engineer

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Software & Networking $89,497 $43.0 40%
Energy & Utilities $76,711 $37.0 20%
MFG Durable $73,515 $35.0 15%
Financial Services $70,319 $34.0 10%
Edu., Gov't. & Nonprofit $67,123 $32.0 5%

Assistant Systems Engineer Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how an Assistant Systems 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.

  • Yearly
  • Monthly
  • Weekly
  • Hourly
  • Table View
Last Updated on November 01, 2026
$56,879
Average $63,926/year
$71,515
$4,740
Average $5,327/month
$5,960
$1,094
Average $1,229/week
$1,375
$27
Average $31/hour
$34
Annual Salary Monthly Pay Weekly Pay Hourly Wage
75th Percentile $71,515 $5,960 $1,375 $34
Average $63,926 $5,327 $1,229 $31
25th Percentile $56,879 $4,740 $1,094 $27

Find Your Next Assistant Systems Engineer Job

Ready to take the next step in your career? Browse thousands of current Assistant Systems Engineer job openings on our job board. Use the search bar below to find your perfect match.

  • Lean Synergy Solutions | Rockford, IL

    Lean Synergy Solutions | Rockford, IL

    Job Description. Job Description. System Engineer. CNC Machine Tool Commissioning. Position Summary. We have an immediate opening for a full-time. System E... more

    8 Days Ago

  • Rogers Freels & Associates Inc | Chillicothe, IL

    Rogers Freels & Associates Inc | Chillicothe, IL

    Job Description. Job Description. RFA Engineering. (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engi... more

    8 Days Ago

  • IT360 Inc | Peoria, IL

    IT360 Inc | Peoria, IL

    Job Description. Job Description. Job Title: Systems Engineer. Location. Peoria, IL. Employment Type. Full-Time. Work Environment. In-person only – This is... more

    8 Days Ago

  • CNH Industrial | Oak Brook, IL

    CNH Industrial | Oak Brook, IL

    About Us. Innovation. Sustainability. Productivity. This is how we are Breaking New Ground in our mission to sustainably advance the noble work of farmers ... more

    18 Days Ago

  • Mindlance | Mount Prospect, IL

    Mindlance | Mount Prospect, IL

    Job Description. Job Description. This position requires a hands-on individual with experience installing and supporting data center infrastructure. The id... more

    7 Days Ago

  • Fintal Partners | Mundelein, IL

    Fintal Partners | Mundelein, IL

    Job Description. We’re partnered with a leading quantitative trading firm continuing to invest heavily in its infrastructure and platform engineering organ... more

    6 Days Ago

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Salary.com salary estimates, histograms, trends, and comparisons are derived from both employer job postings and third-party data sources. We also provide multiple percentiles of salary information for your reference, click here to know Why the Salary Midpoint Formula Is Crucial to Getting Pay Equity Right. With more online, real-time compensation data than any other website, Salary.com helps you determine your exact pay target.

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